Home

VIA-170 Operating Instructions

1. BOECKELER Operating Instructions VIA 170 Video Image Marker Measurement System Accuracy by Design P N 700051 VIA 170 Video Image Marker Measurement System User s Manual BOECKELER Copyright O 1994 1998 by Boeckeler Instruments Inc 4640 South Butterfield Drive Tucson Arizona U S A 85714 520 745 0001 Boeckeler and VIA are registered trademarks of Boeckeler Instruments Inc Tucson Arizona No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form by any means without the expressed written permission of Boeckeler Instruments Inc Printed in the USA P N 700051 12 98 iv ICONTENTS LIST OF FIGURES iii iaa Section One Getting Started sssssssssssssssss INTRODUCTION cocccccccccnnccnncnnccnonccncncncnoncnannos FEATURES teintes en ea Video Image Marker ssse Video Measurement sssses ADDITIONAL FEATURES sese COMPONENTS iiia iras der Keyboard Controller OPTIONAL COMPONENTS Light Pen Controller ssss Knob Controller sese Joystick Controller ssseuss Mouse Mouse Pen Controller
2. 33 Figure 3 2 VIA 170 Keyboard Controller 34 Figure 3 3 Creating a Custom Ruler or Reticle 37 Figure 3 4 Light Pen Calibration Menu 42 Figure 3 5 Set Color Palette Menu sssssss 44 Figure 3 6 Set Menu Colors Menu seee 44 Figure 4 1 The XY Measurement Mode Statistics Mode ACIVE i ioo ere lt 55 Figure 4 2 VIA 170 Keyboard Controller 56 Figure 4 3 The Statistics Table siipii iainta 69 Figure 4 4 First Calibration Menu seeesess 71 vi Figure 4 5 Second Calibration Menu 72 Figure 4 6 Third Calibration Menu suseees 73 Figure 4 7 Calibration X axis Line Placement 76 Figure 4 8 Calibration Y axis Line Placement 77 Figure 4 9 X Measurement Mode uueesesss 79 Figure 4 10 Positioning the X Axis Measuring Lines 80 Figure 4 11 Y Measurement Mode uuuesssss 82 Figure 4 12 Positioning the Y axis Measurement Lines 83 Figure 4 13 XY Measurement Mode sssss 84 Figure 4 14 Positioning the X and Y Measurement Lines 85 Figure 4 15 P P Measurement Mode sssss 87 Figure 4 16 Positioning the Point to Point Cursors 88 Figure 4 17 ANGLE Modulos dt n eden 90
3. Ctrl ALT 58 Measuring Measurement Keys XY MEASURE F9 Activates one of four different modes in which an operator may perform a dimensional measurement Each time this key is pressed users will cycle to the next Measurement Mode X Y XY and P P point to point To cycle backwards through the options press the SHIFT XY MEASURE F9 A brief description of each Measurement Mode is given below X the distance between two vertical lines is continuously displayed Y the distance between two horizontal lines is continuously displayed XY the distance between two vertical lines and the distance between two horizontal lines are continuously displayed P P the distance between two points is continuously displayed To measure XY dimensions in the Measure w Statistics Mode select Measurement Mode desired then press MEASURE W STATS ALT XY Measure F9 The Statis tics Display will appear on screen along with the measurement lines or cursors Detailed XY Measurement procedures begin on page 79 CTRL XY MEASURE F9 Change Line Pattern Pressing the CTRL key together with the XY MEASURE F9 will change the pattern of measuring lines from solid to dashed or from dashed to solid This feature is designed as a visual aid so that operators can more easily differentiate measuring lines from the camera image or from the markers NOTE The pattern selection only affects measuring lines in the X Y or XY Modes A
4. 56 57 59 61 62 64 65 98 cross hairs 128 cursor 126 pointer 5 33 36 128 crosslines 3 9 33 35 39 129 set style 39 cursor 46 129 active 47 134 Appendices cross hairs measuring 90 128 custom rulers 36 cycle backwards key combination 36 D data button transmitting date time label 33 42 protected 42 set 42 show 9 decimal point 70 to change 72 defining an angle ways to See angles defining delete key 10 demonstration of features 8 10 50 67 display marker coord 38 display marker size 6 coordinates key 10 37 49 draw mode drawing instrument drawings too many 124 dual voltage switch 24 28 121 14 16 115 117 12 33 41 129 18 101 E eia rs 170 129 See also eia rs 170 enter key 10 11 38 40 48 50 64 67 98 enter statistic insert key 33 40 57 59 63 69 81 83 86 89 93 97 103 erase 3 9 33 47 64 erase markers 6 47 63 extension driver 29 See also light extension driver F field of view 70 129 fine control in sizing 39 freehand drawing writing 33 41 101 function key keyboard 56 function keys keyboard 9 fuse 121 125 Boeckeler VIA 170 G graphics on off key 10 35 65 gray level 6 129 See also brightness change grids in marking 9 33 36 129 H help 4 8 50 67 horizontal X measurement implied angle 89 implied circle 95 97 insert key enter statistic 63 See also enter statistic insert key installation Ipx light pen e
5. F11 key or the AREA CHORDS F8 key Press the key until the desired Measurement Mode is displayed on screen If measurements are to be entered into the Statistics Table press Measure w Statistics ALT F9 C Select the desired line pattern by pressing the CTRL XY MEASURE F9 for solid or dashed lines in X Y or XY Modes Selection is not applicable to other Measurement Modes D Press the SELECT CALIBRATION Scroll Lock key and select CAL E Properly position the measuring lines or measuring cursors to mea sure the object in the field of view Refer to the section on positioning the lines if needed beginning on page 75 NOTE To obtain an AREA operators anchor or draw a closed shape around the object being measured then press AREA CHORDS F12 to measure 3 Note the displayed measurement reading in the upper left of the screen NOTE To time an event while measuring press CTRL TIMER W XY MEASUREMENT F11 Time is displayed in the lower right of the screen 4 Store or transmit measurement or enter measurement in Statistics Table A Totransmit via the RS 232 serial port for ASCII terminal or computer press the RS 232 TRANSMIT Print Screen key B To enter measurement into Statistics Table be sure you are in Measure w Statistics Mode ALT F9 then press ENTER STATISTIC Insert 5 To exit measuring or begin marking press any marker key Boeckeler VIA 170 Measuring 57 XY F9 Measure
6. Figure 1 4 JS 40 Joystick Controller SELECT a button which anchors the active marker in its current position Also selects which measuring line or cursor will be activated for positioning DATA zeroes out path length distance display while drawing with light pen or mouse In Measuring w Statistics Mode enters displayed measurement into the Statistics Table TRANSMIT a button which downloads displayed measurements or displayed marker size and coordinates through the RS 232C serial port Positioning and Sizing Markers When operating the VIA 170 with the joystick controller the active markers may be posi tioned vertically by tilting the joystick forward or backward Tilting the joystick forward moves the marker toward the top of the screen Tilting the joystick backward toward the 16 Getting Started Boeckeler VIA 170 operator moves the marker toward the bottom of the screen Tilting the joystick right moves the marker to the right side of the screen Tilting the joystick left moves the marker toward the left side of the screen Once the marker is positioned operators may anchor and store the marker in the overlay by pressing the SELECT button Drawing can only take place with the optional light pen or mouse device Sizing markers with the joystick controller can be accomplished after pressing the keyboard SIZE OBJECTS TEXT CTRL SHAPES F3 key Tilting the joystick forward and back ward makes the object taller or shorter T
7. Figure 4 18 ANGLE Mode Placing the First Leg 91 Figure 4 19 ANGLE Mode Placing the Second Leg 92 Figure 4 20 Measuring Other Angles When One Angle is KroWI s ea dico dence ne repete cien 93 Figure 4 21 Measuring an Angle Using Three Points 94 Figure 4 22 CIRCLE Measurement Mode 95 Figure 4 23 CIRCLE Mode Anchoring the Third Point 96 Figure 4 24 Count Mode ssssssseeeeeeenenee 98 Figure 4 25 Counting Objects Group A ssse 99 Figure 4 26 Combination of Tags sesesssss 100 Figure 4 27 Drawing Perimeter of Area 101 Figure 4 28 Area Measurement Option 102 Figure 4 29 Calculating the Area sssssss 103 Figure 4 30 Chord Measurement Option 104 Figure 4 31 Measuring the D1 Chord ssse 105 Figure 4 32 Measuring the D2 Chord 106 Figure 4 33 Timer w XY Measurement 107 Figure 4 34 Timer w Markers Mode ssss 108 Figure 5 1 RS 232 Setup Menu sse 114 vii Section One Getting Started INTRODUCTION Boeckeler VIA 170 The VIA 170 video image marker measurement system created by Boeckeler Instruments Inc combines the features of a video micromete
8. Other Mouse Controllers Section Two Installation eeeeeenm nc nn INSTALLATION na taco ace easiest Composite Systems ssssss RGB Systermis cuina Y C Systems TA INSTALLATION FOR OPTIONAL LIGHT PEN EXTENSION erit rne Section Three Video Marking ssseeenee OVERVIEW sssseeeeeeeeeeenen USING THE MARKER KEYS General Marking Procedure Marker Keys niece ner ne USING THE ACTION KEYS IN MARKING Section Four Video Measuring OVERVIEW coins THE MEASUREMENT MODE 54 USING THE MEASUREMENT KEYS 56 General Measuring Procedures 57 Measurement Keys sssss 58 USING THE ACTION KEYS IN MEASURING 61 CALIBRATION susan 70 General Calibration Procedures 71 MEASURING civic ironia oral dues 78 Basic Operation ssseesssss 78 X Axis Measurement 79 Y Axis Measurement s 81 X and Y Measurement 84 Point to Point Measurement 87 Angle Measurement 89 Circle Measurement seesse 95 Count Measurement seseeeee 98 Area Chords Measurement 101 A sunie eaa 107 Section Five Communicatio
9. To clear the Statistics Table press CLEAR STATS ALT D 4 If not already selected select the desired calibration number by pressing the SELECT CALIBRATION Z Scroll Lock key The Select Calibration Menu will appear on screen Follow instructions to select the desired CAL Operators will be automatically returned to the P P Measurement Mode and the selected CAL will be displayed in the upper right corner of the screen Boeckeler VIA 170 Measuring 87 D 042 85 MICRONS Figure 4 16 Positioning the Point to Point Cross Hairs Cursors 5 To measure the object in the field of view A Position the first active cross hairs at the first point of the object to be measured refer to Figure 4 16 B Becertain to position the inside edges of the cross hairs against the object to be measured Refer to Positioning the Lines in the Calibration section of this manual C Press ENTER The second cross hairs cursor is now active D Position the second active cross hairs at the second point of the object to be measured refer to Figure 4 16 E Becertain to position the inside edges of the cross hairs against the object to be measured Refer to Positioning the Lines in the Calibration section The distance between the two cross hairs will continuously be displayed in the upper left hand corner of the video screen as D The COMPARE function that is available with the optional knob and joystick controllers is not used in
10. beginning with the most recently anchored marker This key may be repeatedly pressed until all anchored graphics have been erased The UNDO key will not remove the active marker or cursor To remove the active graphic or cursor press OVERLAY Home If users mistakenly erase a marker they may unde lete it by pressing CTRL OVERLAY Home In a protected marker overlay the UNDO key only affects added markers UNDO Delete does not affect protected markers When all added markers have been erased and only protected markers remain attempting an UNDO will briefly display the mes sage Markers Protected and users will returned to the protected overlay To UNDO a protected marker the password holder needs to enter the Security Menu CTRL POINTERS F1 select Marker Overlay Protect OFF exit the menu erase the desired marker s then enter the Security Menu and select Marker Overlay Protect ON CLEAR End Clears the overlay of all markers at once A warning message will appear on screen to avoid an unintentional erase To proceed with the clearing procedure select the CLEAR option To cancel the procedure and retain current markers select CANCEL After clearing the active marker or cursor will remain on screen even when all graphics have been cleared To remove the active marker or cursor press OVERLAY Home To undelete cleared markers press CTRL OVERLAY Home In a protected marker overlay the CLEAR key only affects added
11. by pressing the NUM LOCK key In the second Calibration Menu users may type alphanumeric characters to label the calibration with units and any other calibration information In ANGLES Mode pressing the SPACE BAR ends the definition of the first leg of an Measuring 67 Alt Alt Alt Alt 68 Measuring angle so that users can begin defining the second leg and vice versa In some menus repeatedly pressing the SPACE BAR cycles through the available options The option displayed can then be selected by pressing ENTER ALT A z Show Hide Angle While Measuring Angles Toggles on and off the VIA 170 angle display shown while users define an angle Turning on the angle display can help users align each leg of the angle against the object in the field of view Turning off the display may be preferred when users need an unobstructed view of the video image being measured NOTE If users have placed the first leg of the angle and are defining the second leg of the angle when they turn on or off the display the new display will affect only the second leg ALT C Show Hide Circle While Measuring Circles Toggles on and off the VIA 170 circle display shown while users define a circle Turn ing on the circle display can help users visualize the circle or arc being measured Turning off the display may be preferred when users need an unobstructed view of the video image being measured NOTE If users have placed t
12. ee eee eeeeeeeececceces S EE Re Ege Es CAMERA MONITOR JOYSTICK CONTROLLER ENCODER e oe eee ef ls KEYROARD NS TO TOPOWER TOOPTIONAL TO OPTIONAL KEYBOARD JOYSTICK KNOB BNC CABLE CONTROLLER TO MONITOR BNC CABLE TO VIDEO Figure 2 1 Back Panel of VIA 170 for composite video systems 4 Keyboard connection Using the keyboard cable provided connect the VIA 170 keyboard to the KEY BOARD connector on the back of the VIA 170 5 Knob controller connection optional Using the 25 pin cable provided connect the optional KS 30 knob controller to the CONTROLLER ENCODER connector on the back of the VIA 170 Boeckeler VIA 170 Installation 23 24 Installation 6 Joystick controller connection optional Using the 9 pin cable provided connect the JS 40 joystick controller to the JOY STICK connector on the back of the VIA 170 NOTE If both a knob controller and a joystick controller are connected when power is initially applied the VIA 170 will default to the joystick controller To use the knob controller power off disconnect the joystick and power up again The joystick or the knob controller may be used with the keyboard controller and with any of the optional mouse or light pen controllers listed below 7 Mouse pen or other MS Mouse or Microsoft mouse controller optional Connect the mouse cable to the left most RS 232 port on the back of the VIA 170 the other
13. i e they are independent of units Lower Edge of Top Measurement Line Top Edges of Graduation Marks X Upper Edge of Bottom Measurement Line VIA 170 Measurement Lines Stage Micrometer Lines MN Figure 4 8 Calibration Y axis Line Placement Boeckeler VIA 170 Measuring 77 MEASURING Basic Operation Before performing any measurements the VIA 170 must first be calibrated or all measurements will be meaningless The VIA 170 measuring functions allow operators to measure objects within the field of view in both the X and Y axes and between any two points Calibration in the XY Mode is required for any measurements in the XY MEASURE Mode the ANGLES CIRCLES Mode and in the AREA CHORDS Mode Measurements for all modes are continuously displayed in the upper left hand corner of the screen 78 Measuring Boeckeler VIA 170 X Axis Measurement To measure in the X Mode 1 On the keyboard controller press the XY MEASURE F9 key 2 If needed sequence through each of the four Measurement Modes until two vertical lines are displayed over the video image refer to Figure 4 9 This is the X Measurement Mode MICRONS Figure 4 9 X Measurement Mode 3 If measurements will be used in statistical calculations press MEASURE W STATS ALT XY MEASURE F9 The Statistics Display with the current COUNT and MEAN will appear in the lower left corner of the screen along with the measuring lines If the cur
14. protected overlay users can anchor additional markers over protected markers but they can erase and clear only the added markers In ALIGN Mode anchors all markers in the current offset and exits ALIGN Mode In menus saves option as displayed and advances user to next option or next action ALL GRAPHICS ON OFF ESC All Turns off the VIA 170 overlay including menus so that only the video image is displayed Pressing this key again or any other function key will turn on the VIA 170 Graphics overlay and display the markers as they were before pressing ALL GRAPHICS ON On Off OFF Esc This key is different from the OVERLAY Home key which allows users to view both the image and markers without the cursor or active marker Ctrl CTRL POINTERS F1 Security Menu Displays the Security Menu if users enter the correct password Once the password is entered users may choose to turn ON or OFF the Marker Overlay Protect Double framed options are active To change the selected option highlight the option desired 48 Marking Boeckeler VIA 170 RS 232 Transmit Print Screen Ctrl Select Calibr Scroll Lock Boeckeler VIA 170 and press ENTER This new selection will become double framed and remain so until changed To save the new selections highlight SAVE and press ENTER Marker Overlay Protect ON ensures that current markers cannot be erased
15. 2 Extension Receiver to VIA 170 A Using the DB 9 cable provided connect the LPX Extension Receiver to the LIGHT PEN port on the VIA 170 3 Extension Receiver to power supply A Using the power cord attached to the power supply connect the DC 9V connector on one side of the receiver to the power supply 4 Extension Cable Connections A Connect one end of the beige extension cable to the RJ 45 connector on Power Supply DC 9V Connector to Power Supply DB 9 Connector DB 9 Connector RJ 45 Connector like phone jack LPX Extension Transmitter LPX Extension Receiver f DB 9 Connection Light Pen to VIA 170 Light Pen Port fee eee Aeon JO Figure 2 6 Configuration for the LPX Light Pen Extension Receiver Transmitter and Related Cables Installation 29 the receiver An RJ 45 connector is similar in appearance to a phone jack B Connect the other end of the beige extension cable to the input connector on the LPX Extension Transmitter box 5 Extension Transmitter to Light Pen Connections A Using the DB 9 light pen cable attached to the light pen connect the light pen to the other end of extension transmitter 6 Power connections A Plug the LPX power supply into any grounded outlet B Follow other installation procedures for the VIA 170 which begin on page 23 30 Installation Boeckeler VIA 170 Section Three Video Marking OVERVIEW The VIA 170 equips o
16. 2 FUSES Two 1 2 Amp Fuses In the VIA 170 Operating Instructions beginning on page 23 installation instructions and illustrations refer to a 3 8 amp fuse This is now a 1 2 amp fuse In the Trouble shooting Guide on page 121 the reference to a 3 8 amp fuse can be changed to read 1 2 amp fuse In addition a spare fuse has been provided since the manual was written Please note the following procedures for replacing the fuse and using the spare fuse To replace a VIA 170 fuse with the spare fuse 1 Boeckeler VIA 170 Power down the VIA 170 and disconnect the power cord from its attachment to the back of the VIA 170 On the back of the VIA 170 to the right of the now vacated power port there is a removable fuse holder identified by a drawing of a fuse Dislodge the fuse holder by using a small slotted screwdriver Remove the exposed fuse from the holder Next to the exposed fuse is a black casing for the spare fuse With a small tool poke the top of the casing downward so that the spare fuse will be dislodged along with its envelope Remove the spare fuse from its envelope and return the envelope to the spare fuse casing Place the spare fuse in the exposed holder that was occupied by the old fuse Slide the entire fuse holder back into the back of the VIA 170 The VIA 170 power cord may now be attached and the unit powered up Appendices 125 RELEASE NOTES FOR VIA 170 WITH RESTART Warm Resta
17. 57 58 79 81 84 key 58 measuring lines positioning 75 memory 6 overflow 124 menu colors 45 mouse controllers other 4 19 24 27 mouse pad 18 mouse pen 9 18 27 41 N next overlay page down key 10 57 64 nonvolatile memory 6 129 ntsc video standards 53 130 number and text keys 45 67 calibration See select calibration key O offset clear in align mode 48 coordinates See offset display in align mode display in align mode 40 units in align mode 40 50 ohm position 122 options preference 130 overlay 63 130 home key 10 47 63 65 overlays graphic 33 P pal 128 pal ccir standards 53 path length 6 12 18 41 pattern measuring line 58 79 pixel 35 38 53 70 128 placing a marker 35 point to point measurement 7 54 58 61 87 pointer cross hairs 128 136 Appendices pointers in marking 3 key 9 36 48 65 positioning keys 10 11 36 38 40 46 61 62 67 76 measuring lines 75 positioning lines proper procedure 76 77 power supply 24 33 121 122 preference options 60 101 104 105 130 prev overlay page up key 10 57 63 program to test rs 232c port 116 protected calibrations 65 66 71 74 128 protected markers 3 6 protected overlay 36 38 39 40 41 42 47 48 49 130 and align mode 40 and clear function 47 64 and color changes 45 and date time label 42 and undo function 47 63 R radius definition of 130 measurement of 95 resolution 72 restart c
18. 6 DSR Data Set Ready The VIA 170 sets this control line to an active high 7 RTS Request to Send This control line must be set active high 8 CTS Clear to Send The VIA 170 sets this control line to an active high 9 SEND Used as a foot pedal switch This is not a stan dard RS 232 signal pin 9 is not used in the standard fashion Grounding this pin causes the interface to send a block of data This is an optional method of initiating transmission when the VIA 170 is connected to a computer Communication 117 118 Communication Using a Video Printer The VIA 170 is compatible with most video printers which may be purchased from dealers around the country Unlike text printers which print only measurement coordi nates on a tape roll similar to calculators video printers will print everything displayed on the screen including the camera image This means that the video printer will also print the active marker if it is present in the overlay In the Marking Mode the active marker is the unanchored pointer scale grid box circle crossline date time label or text line If operators wish to print an overlay without the active marker they may eliminate the marker from the overlay thereby eliminating the extra marker from the printout The following procedure eliminates the active marker from the overlay To eliminate the active marker from the overlay before printing 1 Press the OVERLAY Home
19. A over the object The cursor will remain positionable ready to tag and count another object The resulting count will be displayed in the upper left of the screen refer to Figure 4 25 NOTE A tag can be erased by pressing the UNDO delete key 98 Measuring Boeckeler VIA 170 C Repeat the above two steps until all the objects are counted which belong to the A group D To count a second group of objects visible in the same field of view press the COUNT F11 key again or press the barrel button on the light pen Figure 4 25 Counting Objects Group A The letter B and measurement display will appear in the upper left of the screen This display represents the total count of all specimens marked with a B tag The positionable counting cursor will also be present in the overlay along with any anchored markers E Anchor the B tag on each object until all the objects are counted which belong to the B group F If desired repeat the above two steps to anchor C through J tags refer to Figure 4 26 for an example of count combinations NOTE To cycle backwards through the alphabet J down to A press the SHIFT key plus the COUNT F11 key 4 To obtain a final count of all tagged objects A After all desired tags are anchored on screen repeatedly press the COUNT F11 key A display of the final count for each tag will appear on screen in the upper left corner NOTE Measure w Statistics is not active in COUNT
20. Figure 4 4 If calibrations are protected the password holder will need to enter the Security Menu to turn Calibration Protect OFF Otherwise calibrations cannot be changed 3 Position the measuring lines along the edges of the stage micrometer NOTE For greater accuracy in calibration refer to the section on position ing lines which follows these procedures Remember that the stage mi crometer should fill 75 to 80 of the screen Position the lines for calibration then press the space bar to continue Press delete to cancel calibration Figure 4 4 First Calibration Menu Measuring 71 4 Press the space bar to continue calibration The Second Calibration Menu will appear along with the image of the stage micrometer This menu will display an X and a Y measurement value at the top of the screen refer to Figure 4 5 Brief instructions are included to assist in this step of calibration X 07 170 Y 02 990 Enter Delete Key Space Bar X and Y Cancels Moves Dec Pt Figure 4 5 Second Calibration Menu 5 Before entering X and Y dimensions select the position of the decimal point by pressing the SPACE BAR on the keyboard controller The decimal point position is not independent for each axis Positioning the decimal point in X automatically positions it at the same place in Y Each time the SPACE BAR key is pressed the decimal point will move one place When it reaches the end of a cycle the decimal poin
21. KEYS Action keys perform an action with regard to marking or measuring such as moving to the next or previous overlay erasing a marker positioning and anchoring a marker or positioning cursors and measurement lines These keys include ALL GRAPHICS ON OFF Esc RS 232C TRANSMIT Print Screen SELECT CALIBRA TION Scroll Lock HELP Pause Break the ENTER key ENTER STATISTICS Insert OVERLAY Home PREV OVERLAY Page Up UNDO Delete CLEAR End NEXT OVERLAY Page Down CTRL and the four POSITIONING keys left right up and down Auxiliary functions which support these keys are activated by press ing CTRL ALT or SHIFT an action key Auxiliary action keys are those for SECURITY MENU SET RS232 CALIBRATE DEMO OF FEATURES AUTOINTERCEPT WHILE DRAWING CLEAR OFF SET CREATED IN ALIGN MODE CLEAR STATISTICS TABLE POSITION SIZE in FINER INCREMENTS REVERSE TOGGLE SHOW HIDE ANGLE WHILE MEASURING SHOW HIDE CIRCLE WHILE MEASURING STATISTICS TABLE UNDELETE Positioning Markers When operating the VIA 170 with the keyboard controller the active markers may be positioned vertically by pressing the up and down POSITIONING keys Pressing the right and left POSITIONING keys moves the marker horizontally Once the marker is positioned operators may anchor and store the marker in the overlay by pressing the ENTER key POSITIONING keys are not only used for positioning markers but also for sizing the active markers before they a
22. Mechanical Micrometers Linear Measuring Systems Digital Dial Indicators Digital Filar Eyepieces Digital Linear Gages Auto Positioning Systems Pointmaker PVI 70 Multiple sync Video Marker Pointmaker PVI 80 Multiple sync Video Marker with Keyboard Boeckeler VIA 170 INDEX A action keys 34 46 56 61 127 126 active marker 46 47 118 127 to eliminate from overlay 118 align markers 3 align mode 6 9 40 48 49 w protected markers 40 anchor 33 anchored marker 56 1257 erasing an 33 47 anchoring button on mouse pen 12 angle definition of 127 measurement 15 59 61 angles defining 89 determining other 92 measuring See four point angle measuring angles circles key 10 54 56 57 59 64 65 89 95 apex vertex 1257 appendices 119 area chords mode 10 15 17 54 56 57 60 61 64 65 101 chords transmit 65 definition of 127 measurement 102 arrow pointers 5 ascii data 65 113 125 autointercept while drawing 5 41 50 axis switch knob controller B background color for text 45 backspace key 43 barrel button light pen 14 15 76 77 12 18 Boeckeler VIA 170 basic computer 116 battery backed up memory 6 baud rate 49 66 113 127 bloom 122 127 bnc coaxial cable 23 122 127 boeckeler instruments iv 3 121 130 interfaces 4 43 boxes in marking 33 sizing 9 brightness blooming 122 128 change See color change monitor 121 122
23. Mode Boeckeler VIA 170 Measuring 99 Figure 4 26 Combination of Tags 5 To clear the screen of tags while retaining the count A lf operators wish to retain totals while continuing to count on a new sample or video image press the CLEAR End key A Clear Tags Menu will appear on screen giving users two options in clearing tags to clear all tags A J and all counts or to clear all tags A J and retain all counts B Select the CLEAR TAGS WHILE RETAINING COUNT option and SAVE to confirm the desired option The screen will be cleared of markers and all counts will remain as they were before pressing CLEAR End 6 To clear the screen of all tags and all counts A lf operators wish to zero out all counts and erase all tags A J press the CLEAR End key A Clear Tags Menu will appear on screen giving users two options in clearing tags to clear all tags A J and all counts or to clear all tags A J and retain all counts B Select the CLEAR ALL TAGS AND COUNTS option and SAVE to confirm the desired option The screen will be cleared of markers and all counts will be displayed as 0000 refer to Figure 4 24 NOTE An undelete command CTRL OVERLAY Home will retreive only the most recently erased tag 7 To quit the COUNT Mode press any function key 100 Measuring Boeckeler VIA 170 Area Chords Measurement To measure AREA in the AREA CHORDS Mode 1 Define the perimeters of t
24. appear in the lower right corner of the screen along with the measurement overlay and any markers anchored in that overlay refer to Figure 4 33 00 00 00 00 Figure 4 33 Timer w XY Measurement 4 To time an event in the field of view A To start the Timer press the SPACE BAR The TIMER will continuously display elapsed time to the hundredths of a second Measurement lines cursors can be positioned while timer is active B To stop the TIMER press the SPACE BAR a second time C To zero out the TIMER press the SPACE BAR a third time NOTE Steps A through C can be repeated as often as desired 5 To remove the TIMER from the display press CTRL COUNT F11 NOTE Timer displays cannot be entered in the Statistics Table Boeckeler VIA 170 Measuring 107 00 00 00 00 To ready timer press enter To exit timer press any marker key Figure 4 34 Timer w Markers Mode To use the Timer w Markers 1 On the keyboard controller press CTRL AREA CHORDS F72 The TIMER Display will appear along with any anchored markers that might be on the overlay refer to Figure 4 34 2 To time an event in the field of view A Press the SPACE BAR to ready the TIMER The TIMER display will show TIMER READY B Press the SPACE BAR a second time to start the TIMER The TIMER will continuously display elapsed time to the hundredths of a second C Press the SPACE BAR a third time or any other function key to s
25. as X Y or D There is no size display for a pointer crossline or date time label The size display is based upon calibrations set and assigned to the displayed CAL Change CAL 0 9 to obtain the proper calibra tion or recalibrate refer to page 70 NOTE For shapes and grids sizes are calculated by the Marking 37 F3 Shapes 38 Marking VIA 170 using the inside edges of parallel lines e g in the horizontal measurement of a box the measurement is calculated from the inside edge of the left side of the box to the inside edge of the right side of the box For scales sizes are calculated using the outside edge of the left or top line and the inside edge of the right or bottom line Size displayed for straight lines or freehand drawing lines is a point to point distance DISPLAY COORD displays the horizontal and vertical coordinates for the center point of an active circle box crossline cross hairs pointer or scale or for the end point of an active line drawn line arrow or text label Displayed in the lower left corner as X and Y There are no coordinates for grids The coordinates display is based entirely upon pixel arrangements fixed within the VIA 170 Coordinates 1 1 represent the lower left corner of the screen Depending on the camera and monitor pixel coordinates may be displayed as high as 1024 pixels by 482 pixels NOTE Coordinates for a shape crossline or cursor r
26. button data 14 16 transmit 74 115 116 C calculations for determining angles 92 calibration 57 70 1286 key 49 label 50 55 70 73 of light pen 13 calibration number selection 10 35 calibration of via 170 general procedures 56 calibration protect 65 66 71 74 See also protected calibrations camera connector 23 cancel full erase 64 carriage return for rs 232c 49 66 ccir 128 ccir pal standards 53 70 change color 43 key 43 change line pattern key 10 3 6 55 57 70 74 79 82 Appendices 133 chord definition of 126 measurement option 60 104 circle 128 measurement circles in marking 33 sizing 9 circumference definition of 128 measurement of clear 64 protected markers 47 64 end key 10 47 63 64 100 offset 10 48 64 overlay 64 128 statistics table 10 68 69 79 81 84 87 89 95 102 See also statistics table tags 100 menu 100 clear points from angle circle measurements 59 94 97 color change 6 43 122 color brightness set 9 43 See also brightness change change for protected markers 45 compare switch knob controller 14 15 80 82 86 88 comparison measurements 80 82 86 composite video 4 23 122 130 installation 23 29 connector 9 pin 117 control key controller definition of 128 knob features coordinates definition of 128 copyright iv message 24 28 count definition of 128 15 17 54 59 61 95 97 10 39 61 62 15 17 mode 10 15 17 54 55
27. calibration details refer to Section 4 Video Measuring Calibration After storing the new calibration the VIA 170 will return operators to the measurement or marker overlay that displayed before entering the calibration mode Detailed calibra tion procedures begin on page 70 HELP Pause Break Activates the HELP Mode Pressing HELP Pause Break then any other key or key combination will display information about the use of that key Arrows in the upper right corner of the HELP screen indicate than an additional page of HELP is available Press the UP or DOWN POSITIONING key to access that page To exit HELP press ENTER If users are in a menu they should exit the menu before accessing HELP HELP Pause Break Demonstration of Features Activates a demonstration of the VIA 170 features which may be useful in giving new users an overall orientation on the product The demonstration is brief To cancel the demonstration while in progress press any function key To pause the demonstration press the HELP Pause Break key To speed up certain portions of the demonstra tion repeatedly press SELECT CALIBR Scroll Lock until the desired feature is displayed The demonstration will not fast forward while the screen is displaying motion TEXT NUMBER KEYS In the Select Calibration Menu numbers 0 through 9 may be typed in the NEW CALIBRATION option box NOTE The numeric keypad on the far right of the keyboard can be activated
28. follow To create new markers in an overlay press any marker function key The measurement lines will disappear and marking functions will begin After marking press the desired Measurement Mode key to recall the measuring lines or cursors last used UNDO Delete Pressing UNDO Delete while in XY MEASURE Mode will erase anchored markers one at a time beginning with the most recently anchored marker The measurement overlay will remain on screen during this process In the COUNT Mode pressing this key erases count tags A B C etc one at a time beginning with the most recently anchored tag Pressing this key in CIRCLES ANGLES Mode or AREA CHORDS Mode will erase both a marker and all the measuring points In a protected marker overlay UNDO only affects added markers UNDO does not affect protected markers refer to page 47 In the Statistics Table deletes a statistic from the table Measuring 63 Ctrl ql 64 Measuring CLEAR End In the XY Measurement Modes pressing this key will clear all the markers at once but not the measuring lines or cursors A warning message will appear on screen to avoid an unintentional erase Press ENTER to confirm a full erase or press any key to exit the procedure without erasure Measuring lines and measurement displays will remain on screen during this process Protected markers will not be cleared In the ANGLES CIRCLES Mode and AREA CHORDS Mode pressing CLEAR End will no
29. for the center point of an active shape scale crosslines or cross hairs for the end point of an active line arrow or text label or for the center point of the drawing cursor 3 Size the marker if the marker is a scale grid circle box or text label A Press the SIZE OBJECTS TEXT key combination CTRL SHAPES F3 B Use the keyboard POSITIONING keys or other controller to size the marker If desired use the size display to aid in sizing Press ENTER NOTE An active text label is selected as large or small by pressing the SIZE OBJECTS TEXT key combination CTRL SHAPES F3 Position the active marker on the overlay If desired use the coordinates display to aid in positioning A Forlines position the cursor at the point where the line is to begin Press ENTER to anchor this point Position the second cursor where the line is to end Anchor the active marker cursor on the overlay by pressing ENTER To select and place another marker repeat steps 1 5 To view the image without the marker overlay press the ALL GRAPHICS ON OFF Esc key Marking 35 Pointers F1 EH Scales F2 Grids 36 Marking Marker Keys POINTERS F1 Selects a different pointer each time this key is pressed Arrow graphics available include four arrows each pointing in one of four different directions Following the sequence of four arrow graphics is a cross hairs a pointe
30. inside edges of the video measuring lines to the same edges e g both left hand edges or both top edges of the graduation marks see Figure 4 6 If operators fail to do so the calibration will be incorrect Assume an operator followed the correct calibration procedure and positioned the inside edges of the measuring lines to both left hand edges of the graduation marks on a stage micrometer The operator then entered a value of X z 0 2250 If there were 450 pixels between the two measuring lines then the VIA 170 would calculate a scale factor of five 5 giving an increment of 0 000 5 per pixel In the same scenario if the operator incorrectly used the outside edges of the measur ing lines for positioning then the VIA 170 would count only 448 pixels between the measuring lines The resulting scale factor would be 5 0223 yielding an increment of 0 000 502 23 per pixel This scale factor would result in a 0 596 error in measurement During the following procedure to establish calibration it is important to focus the camera to obtain the sharpest possible image of the stage micrometer Do not be concerned with other objects in the field of view Measuring 75 To position the lines in the X axis 1 Orient the stage micrometer so that its graduation marks are parallel to the vertical measurement lines 2 If using a knob controller place the AXIS switch in the X position and set the COMPARE switch to the OFF position 3 Usi
31. key The desired overlay will appear on screen without the active marker and may be printed at this point 2 To recover the active marker press the desired marker key Boeckeler VIA 170 Section Six Appendices TROUBLESHOOTING GUIDE The quality inspectors at Boeckeler Instruments test each VIA 170 for software and hardware performance prior to shipment Therefore most problems which operators encounter are related to installation Table 6 1 below describes common problems and their solutions If after referring to this table a problem still exists call Boeckeler Instruments Inc at 800 552 2262 and ask for technical assistance There are no user serviceable parts in the VIA 170 Do not open the cabinet Table 6 1 Troubleshooting Guide Symptoms Possible Solutions The green indicator light on the front of the VIA 170 does not light up 1 Check that the VIA 170 is plugged into a live outlet 2 Onthe back panel of the VIA 170 remove the plastic cover above the power supply connector and check for a blown fuse Replace the fuse only with a BUSS MDL 1 2 amp slow blow See full instructions page 125 Monitor does not light up 1 Check that the monitor is plugged into a live outlet 2 Check that the monitor is switched on 3 Check that the monitor brightness control is properly adjusted Monitor displays a scrambled picture 1 Check the horizontal hold con
32. line 11 Press ENTER to save the changes under the displayed CAL or press the SPACE BAR or any number key to change the displayed CAL NOTE All of the calibration data will be stored to the CAL that is dis played in this menu 12 Select SAVE to save all calibration settings in the VIA 170 memory or select CANCEL to cancel calibration procedures Operators will be automatically returned to the Measurement Mode or marker overlay they were in before beginning the calibration procedure 13 Before making critical measurements be sure to check the X axis and Y axis calibration by measuring an object of known size NOTE If an error message appears please refer to the Troubleshooting Guide in Section Six Appendices 14 Once calibration has been checked a password holder may protect it from acci dentally being changed by other users To protect calibrations enter the Security Menu CTRL POINTERS F1 and select Calibration Protect ON 74 Measuring Boeckeler VIA 170 Boeckeler VIA 170 Positioning the Lines To ensure that accurate measurements may be obtained after calibration operators must pay particular attention to the manner in which they position the video measuring lines during calibration The vertical measuring lines are four pixels thick and the horizontal measuring lines are two pixels thick If the lines are not properly positioned the line widths may create measurement errors Operators must position the
33. lines cursors and active markers will not be displayed RS 232 TRANSMIT Print Screen Pressing this key transmits the displayed measurements through an RS 232 serial port to a computer or ASCII terminal The measurements must be displayed on screen in order to print so operators must be in a Measurement Mode The results of each measurement may be transmitted whether in the XY MEASURE ANGLES CIRCLES COUNT AREA CHORDS or either of the TIMER Modes If in a Measure w Statistics Mode the Statistics Summary current mean standard Measuring 65 Ctrl Select Calibr Scroll Lock Ctrl 66 Measuring deviation low value high value and range is transmitted along with the displayed measurement In the RS 232 Setup Menu users have the option to transmit the summary only or the summary plus all of the entered statistics CTRL RS 232 TRANSMIT Set RS 232 Parameters Displays the RS 232 Menu in which users set RS 232 parameters including baud rate 300 600 1200 2400 4800 9600 terminator carriage return return only or return plus line feed and how to send statistics summary only or summary with all statistics The factory settings are a baud rate of 9600 a carriage return line feed and sending the summary of statistics only After entering the choices select ENTER to save the changes or select CANCEL to exit without saving changes To program a computer to accept the downloaded in
34. markers but they cannot erase protected markers without a password The marking tools available in the VIA 170 include typed text and numbers 10 different pointers e g arrows cross hairs custom scales and grids sizeable circles and boxes for framing crosslines which may be automatically centered and a lines mode offering a selection of line thicknesses Also with the touch of a key operators can display the current date time or both Freehand drawing is available with an optional light pen control ler As easily as the markers are created so are they easily erased either one at a time until the screen is clear or all at once Users may also undelete their most previous erase or clear function By pressing a measurement key operators automatically enter one of ten different Measurement Modes By using this key operators may directly measure the objects on a monitor which are generated by a video source such as a camera or VCR The VIA 170 measuring tools include the ability to enter and store up to ten different calibrations in any scale from microns to miles Measuring lines may be displayed as solid or broken to differentiate these lines from markers or from the image being measured The 10 different Measurement Modes assist users in measuring the monitor image horizontally X verti cally Y both horizontally and vertically XY or diagonally point to point Users may also measure angles and circles circumference and rad
35. menus can be made to optimally contrast with the video image thus reducing eye strain and increasing legibility The first menu displayed is the Set Color Palette Menu in which users choose three colors they would like to use for markers measuring lines and menus refer to Figure 3 5 Colors available are red green blue magenta yellow white and black To select a color press the CHANGE COLOR F8 key until the desired color is displayed All colors available for markers measurement lines and menus will be based on the selections made in this menu No two colors can be the same For example if Color 1 is black colors sequenced through for 2 and 3 will skip over the black option If black is desired for Color 2 operators need to change Color 1 from black to another color Additionally each color may be displayed in a range of brightness levels If for ex ample the color red is selected for Color 1 it can be displayed in one of five different brightness levels To select a brightness level for a color press the SPACE BAR or BACKSPACE key to cycle through the brightness levels When the desired brightness level is displayed move on to define Color 42 by pressing the RIGHT POSITIONING key Repeat the procedure with Color 2 first select the color then the brightness level then move on Marking 43 44 Marking Set Color Palette Color 1 Color 42 Color 3 Press CHANGE COLOR F8 to sequence through color
36. of a circle when defined by the three points in the CIRCLE Mode displays the area of a closed shape when in the AREA CHORDS Mode displays the short and long chords for a shape when in the AREA CHORDS Mode displays the number of cells or particles counted when in the COUNT Mode The count is displayed for the tag selected A through J displays the elapsed time when in the TIMER Mode either the Timer w XY Measurement Mode CTRL F10 or Timer w Markers Mode CTRL F12 Boeckeler VIA 170 The upper right of the screen continuously displays the calibration LABEL assigned to the calibration usually a reminder of the magnification or scale used 100X SCALE 5 etc Not present in COUNT Mode or TIMER Mode Beneath is the calibration number CAL 0 9 which was selected for this Measurement Mode The upper center of the screen continuously displays the UNITS assigned to the calibration micron inches etc The lower left of the screen if in Measurement w Statistics Mode continuously displays the current COUNT of measurements entered in the Statistics Table and the current MEAN or average of those measurements Up to 500 measurements can be entered into the table Microns 1 I I a I I L I i I I i L L i I L L L L 2 COUNT 004 MEAN X 066 28 MEAN Y 025 47 Figure 4 1 The XY Measurement Mode Statistics Mode Active shaded box represents image being measured B
37. options Press SPACE BAR or BACKSPACE KEY to sequence through brightness levels eZ Y o7 38 SAVE Figure 3 5 Set Color Palette Menu SET MENU COLORS 1 2 3 4 MENU TEXT COLOR 3 MENU BACKGROUND COLOR 1 Press SPACE BAR to sequence through options PREV MENU CANCEL SAVE Figure 3 6 Set Menu Colors Menu Boeckeler VIA 170 Boeckeler VIA 170 to Color 3 and repeat When all three colors are set select SAVE Users will exit the Set Color Palette Menu and will be presented with the Set Menu Colors Menu refer to Figure 3 6 The Set Menu Colors Menu will display the three selected colors plus a no fill option Follow instructions to select MENU TEXT color and MENU BACKGROUND color NOTE The MENU TEXT option will not offer the no fill display that is text cannot be made to appear transparent Also the VIA 170 ensures that the MENU BACKGROUND color will be different than the text color by not offering an already used color option If the MENU BACKGROUND is 4 no fill all three colors will be available for menu TEXT When menu colors have been selected select SAVE Colors will be saved and users will be returned to the marker overlay they were in before activating the color menus NOTE Protected markers will reflect any changes made in the color palette TEXT NUMBER KEYS Pressing any of the 47 text number keys will automatically activate the text mode Text in upper or lower case will appear on scr
38. particular measurement situation Recalibration is required if the focal distance or any other parameter is changed If operators are using the VIA 170 in a permanent installation where the field of view is fixed then the set up and calibration numbers stored in the unit may be used again and again without recalibration Boeckeler VIA 170 Boeckeler VIA 170 General Calibration Procedures Calibration for all Measurement Modes can be completed most efficiently in XY Measurement Mode It is for this reason that the VIA 170 is programmed to help users calibrate using both horizontal and vertical measurements Since many VIA 170 applications include a video system attached to a microscope the calibration proce dure described herein utilizes a stage micrometer Calibration may be performed however by placing any object of known size within the field of view of the camera The particular object used for calibration should be chosen with attention to the specific application for which the VIA 170 is being used To calibrate the VIA 170 1 Place a stage micrometer or another object of known size in the field of view of the camera 2 On the VIA 170 keyboard controller press the CTRL SELECT CALIBRATION Scroll Lock key combination The First Calibration Menu will appear along with the image of the stage micrometer The menu will display two horizontal measuring lines two vertical measuring lines and initial instructions refer to
39. pen across a smooth surface such as a mouse pad or the side of one s leg The marker will follow this movement For example dragging the pen to the left will correspondingly move the marker to the left on the 18 Getting Started Boeckeler VIA 170 screen Clicking the First Button will anchor an active graphic Dragging the pen also serves to quickly size a marker if users have activated the sizing mode by pressing the SIZE OBJECTS TEXT CTRL SHAPES F3 key If concise sizing is desired operators should use the keyboard POSITIONING keys instead of the mouse pen To draw users press the First Button while dragging the pen across the mouse pad Positioning Measuring Lines or Cursors When operating the VIA 170 with the mouse pen controller the measuring lines or cursors may be moved anywhere on the screen by lightly dragging the mouse pen across a smooth surface The marker or measuring line will follow this movement For example dragging the pen to the left will correspondingly move the measuring line or cursor to the left on the Screen While measuring the mouse pen may be used to quickly position measuring lines or cursors When first measuring only the top and or left lines will be active To activate the right and bottom lines press ENTER on the keyboard then continue with the light pen NOTE The measuring lines may shift as the pen is jarred or set upon a desk For this reason Boeckeler recommends that mouse pens be used
40. positioning If the Circle Display is on a circular graphic representing the circle being measured will also be displayed B Turn on or off the Circle Display to aid in point placement by pressing SHOW HIDE CIRCLE WHILE MEASURING ALT C NOTE Turning on the Circle Display can help users align the circle against the object in the field of view Turning off the angle display may be preferred when users need an unobstructed view of the object being measured C Position the second cursor along the perimeter of the circular image being measured Press ENTER The second point will be anchored and a third cross hairs cursor will appear ready for positioning MICRONS Figure 4 23 CIRCLE Mode Anchoring the Third Point circle represents image being measured 96 Measuring Boeckeler VIA 170 NOTE At this point the measurement of the implied circle will be displayed in the upper left of the screen However because the third cross hairs cursor is still positionable the display will change with any movement of the cursor If this is not desired the measurement can be made final by anchoring the third or final cursor C Position the third point along the perimeter of the circular image being measured Press ENTER The third point will be anchored and the radius and circumference of the circular image will be displayed in the upper left hand corner of the video screen refer to Figure 4 23 A fourth cross hairs cur
41. that measurements entered are compatible with those already in the table A warning message will appear only if values being entered into the table are from a different Measurement Mode than those already in the table To quit measuring or comparing in Y Mode 1 If using the optional knob controller place the COMPARE switch in the OFF position 2 Onthe keyboard controller press any function key Measuring lines will disappear and operators will have exited the Y Measurement Mode Boeckeler VIA 170 Measuring 83 X and Y Measurement To measure in the XY Mode 1 Onthe keyboard controller press the XY MEASURE F9 key 2 If needed sequence through each Measurement Mode until two horizontal lines and two vertical lines are displayed over the video image refer to Figure 4 13 This is the XY Measurement Mode At this point only the top and left lines are positionable or active MICRONS Figure 4 13 XY Measurement Mode 3 If measurements will be used in statistical calculations press MEASURE W STATS ALT XY MEASURE F9 The Statistics Display with the current COUNT and MEAN will appear in the lower left corner of the screen along with the measuring lines If the current MEAN is INVALID this means that there are measurements in the Statistics Table that are incompatible with XY Mode measurements To clear the Statistics Table press CLEAR STATS ALT D 4 Select the desired line pattern dashed o
42. the ON position While measuring in the XY Mode the left measuring line is controlled by the LEFT KNOB The right measuring line is controlled by the RIGHT KNOB To activate the top and bottom lines place the AXIS switch in the P2 position To move parallel lines in unison press the knob controllers COMPARE SWITCH to the ON position When measuring in the P P Mode point to point the left cross hairs cursor is activated by placing the AXIS switch in the P1 position Rotate the LEFT KNOB to position the cursor vertically and the RIGHT KNOB to position the cursor horizontally Then place the AXIS switch in the P2 position to activate the second cursor Rotate the LEFT KNOB to position the point vertically and the RIGHT KNOB to position the point horizontally When measuring in the ANGLE Mode or CIRCLE Mode the first cross hairs cursor will appear on screen alone Rotate the LEFT KNOB to position the cursor vertically and the RIGHT KNOB to position the cursor horizontally When the cursor is positioned on the screen press SELECT The first cursor will be anchored in place and the second cross hairs cursor will appear ready for positioning Follow this procedure until all cross hairs cursors are anchored It does not matter whether the AXIS switch is in the P1 or P2 posi tion while in these modes When measuring in the AREA CHORDS or COUNT Mode the cursors or alphanumeric letters are positioned individually one at a time Rotate the LEFT KNO
43. the screen These overlays cannot take on new markers while in the current Measurement Mode However markers may be erased in the Measurement Mode refer to the UNDO and CLEAR functions above To create new markers in an overlay press any marker function key The measurement lines will disappear and marking functions will begin After marking press the desired Measurement key to recall measuring lines last used ENTER In measuring activates a measuring line or cursor for positioning Pressing it again activates the parallel line or second cursor In COUNT Mode anchors a tag Boeckeler VIA 170 Ctrl All Graphics On Off Esc RS 232 Transmit Print Screen Boeckeler VIA 170 In CIRCLES ANGLES Mode anchors a point In menus saves option as displayed and advances user to next option or next action CTRL POINTERS F1 Security Menu Displays the Security Menu if user enters the correct password If there is no pass word user will advance to Security Menu Once in the Security Menu user may choose to turn ON or OFF the Calibration Protect feature Double framed options are active To change the selected option highlight the option desired and press ENTER This new selection will become double framed and remain so until changed To save selections highlight SAVE and press ENTER Calibration Protect ON ensures that calibrations cannot be altered except with a password A
44. the screen Enter a value with a smaller magnitude than that used for the previous calibration LINE POSITION IS NOT OPTIMAL GREATER ACCURACY IS POSSIBLE Cause The VIA 170 is calibrated using less than 1096 of the screen width or height The VIA 170 will accept the calibration but the measurement accuracy will be degraded Solution Continue or recalibrate If desired change magnification to ensure that the stage micrometer fills at least 80 of the screen Also ensure that the dis tance between the measuring lines represents at least 80 of the screen GREATER RESOLUTION IS POSSIBLE Cause The measurement value entered is less than the number of pixels between the measuring lines The quotient of the two numbers yields a scale factor less than one but the VIA 170 will accept the calibration Solution Recalibrate Increase the magnitude of the measurement value by a factor of ten Ideally such values should be between 1000 and 99999 For example 001 mm should be entered as 1000 or 10000 not 00100 00010 or 00001 continued on next page Appendices 123 Table 6 2 Warning Messages continued MEMORY OVERFLOW Cause The overlay has as many markers on it as can be stored Cause The overlay has as many freehand drawings on it as can be stored Solution Switch to a new marker overlay or erase markers by using the CLEAR or UNDO key Solution Swi
45. these added shapes or other added markers Boeckeler VIA 170 Ctrl Ctrl Boeckeler VIA 170 CTRL SHAPES F3 Size Objects Text Activates the sizing mode for objects scales grids boxes and circles and text Sizing may only take place for active objects or active text blocks Once objects or text have been anchored they may not be sized again To size objects users must first have pressed the appropriate marker key and the active marker must be displayed on screen To enter the sizing mode press the SIZE OBJECTS TEXT key combination CTRL SHAPES F3 Size objects by operating the positioning keys on the key board To rapidly size objects use an optional controller For finer sizing control press the CTRL key while pressing a positioning key To store the size and exit the sizing mode press ENTER The object may now be positioned To size text users must first have pressed a text or number key and a text cursor must be displayed on screen To sequence to the available text sizes small and large press the SIZE OBJECTS TEXT key combination CTRL SHAPES F3 Begin typing After typing the first line position it anywhere on the screen by using keyboard positioning keys or other controller To anchor the label press ENTER The next line of text may be sized and positioned independently from the previous line or can be added to the previous line to form a text block CROSSLINES F4 Selects a cross
46. while other optional controllers are installed Boeckeler VIA 170 Installation 27 28 Installation 10 Light pen connections refer to Figure 2 6 A Using the DB 9 connector at the end of the light pen connect the light pen to the LIGHT PEN port on the back of the VIA 170 refer to Figure 2 1 NOTE For installing the optional light pen driver with extension cable refer to special instructions beginning on page 29 NOTE The light pen may be operated while other optional controllers are installed 10 Power supply A Ensure that the DUAL VOLTAGE SWITCH is in the proper position to coincide with the incoming power supply Plug the power cord into the back of the VIA 170 and then into a grounded outlet of the proper voltage and current rating Plug the video source and monitor power cords into a grounded outlet of the proper voltage and current rating For optional light pen driver and extension Plug wall transformer into a grounded outlet of the proper voltage and current rating Turn on the video source monitor and VIA 170 NOTE In order for the VIA 170 to sync with the video the video source must be turned on first After a moment the monitor will display a video image of the object s in the field of view A copyright message will briefly appear refer to Figure 2 5 This message will disappear and be followed by overlay 1 or the overlay and mode users were in last before powering down If either o
47. 00 00 1000X D2 000 00 CAL 7 Figure 4 29 Calculating the Area A Press UNDO delete to erase the drawn shape or marker or Change to another marker overlay 1 10 by pressing the PREV OVER LAY Page Up key or NEXT OVERLAY Page Down key Repeat steps 1 through 5 To enter the displayed area into the Statistics Table 1 From the Measure w Statistics Mode press ENTER STATISTIC Insert The Statistics Display will now read one COUNT higher and the MEAN will incorporate the new value To view the entire Statistics Table or to edit it press STATISTICS TABLE ALT S WARNING Users will be able to enter measurements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table A warning message will appear only if values being entered into the table are from a different Measurement Mode than those already in the table To quit measuring in Area Mode 1 On the keyboard controller press any function key The cross hairs will disappear and operators will have exited Area Measurement Mode Boeckeler VIA 170 Measuring 103 To measure CHORDS in the AREA CHORDS Mode 1 To activate the first chord option D1 press the AREA CHORDS F12 key so that the preference arrow is positioned next to the D1 display or press the pen tip into the D1 display to select it NOTE To cycle backwards through the area and chord options press the SHIFT
48. 101 131 Y y axis measurement 54 58 61 62 81 131 y c s video 131 color problems some systems 43 installation 26 interface 43 129
49. A AOS es YD A ERARIO A S MARKER KEYS Text Numbers ACTION KEYS Figure 3 2 VIA 170 Keyboard Controller 34 Marking Boeckeler VIA 170 Boeckeler VIA 170 General Marking Procedure The following is a general procedure for selecting and placing a marker Specific marker key functions are discussed in the following pages To select and place a marker 1 2 Press the desired marker key If the size or the coordinates of a marker are critical press the SHOW MARKER SIZE COORDINATES key combination which is CTRL SCALES GRIDS F2 and choose display selections size only coordinates only or both Size dimen sions are not displayed for pointers the date time label crosslines or drawing cursor Grids do not display coordinates NOTE The size display X Y or D is based upon calibrations set and assigned to the displayed CAL To change the CAL press the SELECT CALIBRATION Scroll Lock key To recalibrate a CAL refer to the calibra tion procedures listed on page 70 in Section Four Video Measuring Size displays are given for the width and height of a shape or the length of a line or scale The coordinates display X Y is based entirely upon pixel arrangements not a calibration Coordinates 1 1 represent the lower left corner of the screen Pixel coordinates depending on the camera and monitor may be displayed as high as 1024 pixels by 482 pixels Coordinates are given
50. B to position the cursor or active letter vertically and the RIGHT KNOB to position the cursor or letter horizontally When the cursor is positioned on the screen press SELECT In AREA Mode the area enclosed around the cursor will fill In CHORDS Mode and COUNT Mode the first cursor letter will be anchored in place and the second cursor letter will appear ready for positioning It does not matter whether the AXIS switch is in the P1 or P2 position while in these modes It does not matter whether the COMPARE switch is on or off Boeckeler VIA 170 Getting Started 15 Moving through Menus Except for activating one of three measuring modes in the Area Chords Data Line the knob controller has no effect in menu selections Use the keyboard POSITIONING keys instead JOYSTICK CONTROLLER The VIA 170 may operate with either the joystick or knob controller while the keyboard controller is connected If all three controllers are connected the VIA 170 will automatically default to the joystick controller Figure 1 4 below depicts the JS 40 Joystick Controller This controller functions as the user s auxiliary interface with the VIA 170 In general the joystick is used to position markers and measuring lines on the overlay Broad definitions of the three keys on the joystick controller are listed below Refer to this section if needed when general instructions later in the manual ask users to position measuring lines or size and anchor a marker
51. F2 If a path length is desired and the user is drawing more than one object or segment on the overlay the path length value will reflect a sum of all segment lengths To zero out the value before continuing to draw another object press the barrel button on the light pen left or second button on the mouse or the DATA button on the joystick or knob controller To automatically close a gap between endpoints of a drawn line activate AUTO INTERCEPT by pressing ALT I This feature is desired when users are preparing to measure the area of an image which must be defined with a closed shape or closed freehand drawing Turning on the autointercept feature enables users to draw a shape without concern for making a complete closure When the drawing is nearly closed and the light pen is lifted away from the screen the VIA 170 will automatically draw a line connecting the two ends of the line thus forming a shape To turn off AUTOINTERCEPT press ALT I again CTRL DRAW F6 Calibrate Light Pen Before drawing with the light pen operators may wish to calibrate the pen This is done by accessing the Light Pen Calibration Menu by pressing the key combination CTRL DRAW F6 The Light Pen Calibration Menu will be displayed on screen along with calibration cross hairs refer to Figure 3 4 Pressing any function key at this point will exit the Light Pen Calibration Menu If operators wish to continue press the light pen directly on the cursor fo
52. LT XY MEASURE F9 Measure w Statistics After entering the desired Measurement Mode XY MEASURE ANGLES CIRCLES or AREA CHORDS users can choose to measure while displaying the average of their measurements This requires being in the Measure w Statistics Mode because measurement procedures will include creating and maintaining a separately displayed Statistics Table Pressing the ALT key together with the XY MEASURE F9 will change the displayed Measurement Mode to a Measure w Statistics Mode A Statistics Display will appear on screen in the lower left corner along with the mea suring lines or cursors refer to Figure 4 1 page 55 The additional display shows the current COUNT of values that have been entered into the Statistics Table and the current MEAN UNDEF means there aren t enough measurements in the table to warrant a calculation INVALID means that measurements in the Statistics Table are Boeckeler VIA 170 Dr O Angles Circles F10 Ctrl Boeckeler VIA 170 different than those displayed in the Measurement w Statistics Mode e g the user is in the XY Measure w Statistics Mode and the table contains angle measurements After measuring to enter the displayed measurement s into the Statistics Table press the ENTER STATISTIC Insert key The Statistics Display will now read one COUNT higher and the MEAN will incorporate the new value To view the entire Statistics Table or to e
53. NTSC standard is used in North and South America Japan and most of Asia OVERLAY a combination of one or more graphic symbols placed on the screen using the mark ing or measuring capabilities of the VIA 170 PAL the European 625 line 25 frame color TV Phase Alternate Line standard The PAL standard is used throughout most of Europe and Africa except France and parts of northern Africa PIXEL condensed form of the phrase picture element used to describe a unit of visual data usually applied to a video screen or video overlay POINTERS markers used to point at or draw attention to important aspects of a video image In the VIA 170 these include arrows cross hairs pointed cross hairs small boxes small circles target boxes and target circles PREFERENCE ARROW a symbol which indicates the option chosen by users before performing actual opera tions as in the AREA CHORDS Mode which offers three preference options area chord 1 chord 2 The position of the arrow designates which option is active PROTECTED OVERLAYS CALIBRATIONS a feature of the VIA 170 which allows a password holder to protect markers that have been anchored in an overlay and or calibrations that have been set This avoids an unintentional erasure of markers or an unintentional re setting of calibrations Protec tion is turned on or off in the Security Menu which must be entered with the password If a password was never initially entered in th
54. RCLES F10 key 2 Sequence through the two Measurement Modes until the Az display is shown in the upper left corner of the screen refer to Figure 4 17 This is the ANGLE Measurement Mode 3 If measurements will be used in statistical calculations press MEASURE W STATS ALT XY MEASURE F9 The Statistics Display with the current COUNT and MEAN will appear in the lower left corner of the screen along with the cross hairs cursor If the current MEAN is INVALID this means that there are measurements in the Statistics Table that are incompatible with Angle Mode measurements To clear the Statistics Table press CLEAR STATS ALT D Measuring 89 Az Degrees Leg 1 SPACE for Leg 2 Figure 4 17 ANGLE Mode 3 If not already selected select the desired calibration number by pressing the SELECT CALIBRATION Z Scroll Lock key The Select Calibration 4 Menu will appear on screen Follow instructions to select the desired CALA Operators will be automatically returned to the ANGLE Measurement Mode and the selected CAL will be displayed in the upper right corner of the screen 4 To measure the first leg of the angle A Position the first cross hairs cursor along one leg of the angle to be measured refer to Figure 4 18 B Becertain to position the inside edges of the cross hairs against the object to be measured Refer to Positioning the Lines in the Calibration section of this manual NOTE The top left
55. RS 232 TRANSMIT key or button and any marker or measurement readings on screen will be transmitted through the RS 232 port NOTE In some cases a leading zero is transmitted which causes a fifth digit to be transmitted This is the case when the decimal point is moved farthest to the left The transmission will be then X 0 xxxx Communication 115 If transmitting TIMER data users must allow the transmission to complete before restarting the TIMER again Program to Test Port To test the RS 232 computer connection to the VIA 170 a program will need to be written for the computer The requirements for such a program are as follows 1 apersonal computer with at least one serial port 2 aversion of BASICA GWBASIC or Quick BASIC installed on the computer other versions of BASIC may or may not have the same syntax as the program printed below 3 acable to connect the VIA 170 RS 232 port to the computer port VIA 170 units have DB 9 connectors for RS 232 output 4 the VIA 170 powered up and in one of the Measurement Modes with camera and video monitor also operating be sure the camera is turned on first The program is as follows 10 REM PROGRAM TO TEST RS 232 INTERFACE ON VIA PRODUCTS 20 REM SET THE VIA FOR 9600 BAUD THRU ITS RS232 MENU 30 PRINT NOW PRESS TRANSMIT BUTTON 40 OPEN COM2 9600 N 8 1 DS AS 1 50 INPUT 1 X 60 PRINT X 70 GOTO 50 Line 40 of this program can be changed to specify any COM po
56. RS 232 port is used for printer or computer output 8 Light pen connections optional A Using the DB 9 connector at the end of the light pen connect the light pen to the LIGHT PEN port on the back of the VIA 170 refer to Figure 2 1 NOTE For installing the optional light pen driver with extension cable refer to special instructions beginning on page 29 NOTE The light pen may be operated while other optional controllers are installed 9 Power supply A Ensure that the DUAL VOLTAGE SWITCH is in the proper position to coincide with the incoming power supply B Plug the power cord into the back of the VIA 170 and then into a grounded outlet of the proper voltage and current rating C Plug the video source and monitor power cords into a grounded outlet of the proper voltage and current rating D For optional light pen driver and extension Plug wall transformer into a grounded outlet of the proper voltage and current rating E Turn on the video source monitor and VIA 170 NOTE In order for the VIA 170 to sync with the video the video source must be turned on first After a moment the monitor will display a video image of the object s in the field of view A copyright message will briefly appear refer to Figure 2 2 This message will disappear and be followed by overlay 1 or the overlay and mode users were last in before powering down If either of these images are displayed then the VIA 170 is working pr
57. a closed graphic or freehand drawing with an optional light pen or mouse device The area of the closed shape is instantly calculated and continuously displayed on screen with the image 9 Chord Operators place cursors on the extreme points of the object s perimeter to obtain the long chord and at narrow points of the perimeter to obtain the short chord The two distances are displayed on screen continuously along with the area 10 Timer A timer may be started and stopped to measure an event which takes place on the screen either in the Marker Mode or in one of the four linear measurement modes X Y XY and Point to Point Time is continuously displayed to the hundredths of a second and may be used to track a single event up to 99 hours Statistics Mode in which displayed measurements can be entered into a Statistics Table Up to 500 measurements can be stored in the table which also displays the current count mean standard deviation low value high value and range Statistical calculations change as each new measurement is added or deleted in the table RS 232 data output transmits ASCII measurement data and statistics to printers or computers The ability to change the gray level or color of measuring lines for optimum contrast with the video image The ability to view the camera image alone without a measurement overlay Operators may also choose between viewing the image with measuring lines only or with measuring lines an
58. ace top and Y C Interface bottom 5 VIA RGB or VIA Y C to VIA 170 connections Using the middle connection on the 37 pin ribbon cable provided connect the VIDEO CONTROL port of the Boeckeler VIA RGB or VIA Y C interface to the VIDEO CONTROL port on the VIA 170 6 Keyboard connection Using the keyboard cable provided connect the VIA 170 keyboard to the KEYBOARD connector on the back of the VIA 170 7 Knob controller connection optional Using the 25 pin cable provided connect the KS 30 knob controller to the CONTROLLER ENCODER connector on the back of the VIA 170 8 Joystick controller connection optional Using the 9 pin cable provided connect the JS 40 joystick controller to the JOYSTICK connector on the back of the VIA 170 NOTE If both a knob controller and a joystick controller are connected when power is initially applied the VIA 170 will default to the joystick controller To use the knob controller power off disconnect the joystick and power up again The joystick or the knob controller may be used simultaneously with the keyboard controller or with any of the optional mouse or light pen controllers listed in Section One Getting Started Optional Components 9 Mouse pen or other MS Mouse or Microsoft mouse controller optional Connect the mouse cable to the left most RS 232 port on the back of the VIA 170 the other RS 232 port is used for printer or computer output NOTE The mouse may be operated
59. ace points along the second leg of the angle B Position the first cross hairs cursor along the second leg of the angle being measured C Becertain to position the inside edges of the cross hairs against the object to be measured refer to Figure 4 18 Refer to Positioning the Lines in the Calibration section The distance between the two cross hairs will continuously be displayed in the upper left hand corner of the video screen as A Az Degrees Leg 2 SPACE for Leg 1 Figure 4 18 ANGLE Mode Placing the First Leg angular object represents image being measured Boeckeler VIA 170 Measuring 91 92 Measuring A 26 5 Degrees Second Leg Figure 4 19 ANGLE Mode Placing the Second Leg angular object represents image being measured D Press ENTER The first point will be anchored and a second cross hairs cursor will appear ready for positioning If the Angle Display is on the line representing the second leg of the angle will also appear continuously connecting the first and second points NOTE At this point the measurement of the implied angle will be dis played in the upper left of the screen However because the second cross hairs cursor is still positionable the reading will change with any movement of that cursor If this is not desired the measurement can be made final by anchoring one or more additional cursors Repeat steps A D to position the second third and etc points along the second le
60. al dimensions of the stage micrometer 8 Once the values and decimal point placements are correct press ENTER The Third Calibration Menu will appear displaying units label and calibration number options refer to Figure 4 6 9 Press the text or number keys to enter the UNITS ascribed to the calibration mils microns inches etc Operators may press the backspace key to overwrite a previously entered character Operators may use up to 10 characters for the UNITS entry Once 10 characters for UNITS are entered the cursor will automatically move to the next line ready for LABEL entry If less than 10 characters are used press ENTER to proceed to the LABEL entry line 10 Press the text or number keys to enter the LABEL information ascribed to the calibration This LABEL is often used to signify magnification such as 1000X 100X etc Operators may use up to 10 characters for the LABEL entry The label serves only as a reminder of the scale factor or magnification corresponding to the current calibration This label has no impact upon actual measurements X z 07 170 UNITS Microns Y 02 990 LABEL 500X CALIBRATION 9 CANCEL SAVE Figure 4 6 Third Calibration Menu Boeckeler VIA 170 Measuring 73 performed Once 10 characters for LABEL are entered the cursor will auto matically move to the next line ready for CALIBRATION entry If less than 10 characters are used press ENTER to proceed to the LABEL entry
61. alone Tilt the joystick forward or backward to position the cursor verti cally and tilt the joystick left or right to position the cursor horizontally When the cursor is positioned on the screen press SELECT The first cursor will be anchored in place and the second cross hairs cursor will appear ready for positioning Follow this procedure until all cross hairs cursors are anchored When measuring in the AREA CHORDS or COUNT Mode the cursors or alphanumeric letters are positioned individually one at a time Tilt the joystick forward or backward to position the cursor or letter vertically and tilt the joystick left or right to position the cursor or letter horizontally When the cursor is positioned on the screen press SELECT In AREA Mode the area enclosed around the cursor will fill In CHORDS Mode and COUNT Mode the first cursor letter will be anchored in place and the second cursor letter will appear ready for positioning Moving through Menus Except for activating one of three measuring modes in the Area Chords Data Line the joystick controller has no effect in menu selections Use the keyboard POSITIONING keys instead Boeckeler VIA 170 Getting Started 17 MOUSE PEN OR MOUSE CONTROLLER Figure 1 5 below depicts an optional mouse pen controller The mouse pen or other MS or Microsoft mouse device functions as the user s auxiliary interface with the VIA 170 In general the mouse pen is used to draw write and position a
62. ame function The first cursor will be anchored and the second cursor will appear ready for positioning D Position the second cursor along the perimeter of the object This will be the second endpoint of D2 E Anchor the second cursor by pressing the pen tip into the screen on top of the cursor or by pressing ENTER on the keyboard controller Select buttons on optional controllers will achieve this same function The second cursor will be anchored and a straight line will connect the two endpoints The resulting measurement is displayed in the upper left of the screen refer to Figure 4 32 7 To repeat the same chord or distance measurement position and anchor the active cursor as the first endpoint of the new chord refer to step 4 8 To measure chords on a new sample or marker overlay A Press UNDO delete to erase the drawn shape or marker or change to another marker overlay 1 10 by pressing the PREV OVERLAY Page Up key or NEXT OVERLAY Page Down key B Repeat steps 1 through 5 To quit measuring in Chords Mode 1 On the keyboard controller press any function key 106 Measuring Boeckeler VIA 170 Timers To use the Timer w XY Measurements 1 Enter XY Measurement by repeatedly pressing XY MEASURE F9 until the desired mode is displayed 2 Position the lines or cursors at the desired distance apart 3 Press the TIMER W XY MEASURE key combination CTRL COUNT F11 The TIMER Display will
63. ansmitted These display s must be present in order to be transmitted While in a Measure w Statistics Mode the displayed measurement and statistics can be transmitted Measurement data is output in different forms depending on the specific mode of the VIA 170 In general the measurement information on the screen is output to the remote device When the VIA 170 is in X Mode X z x xxx will be transmitted x xxx being the actual measurement displayed on the screen In Y Mode Yz y yyy is sent In XY Mode X x xxx Y y yyy is sent In P P Mode D d ddd is sent In ANGLE MODE A aaa a is sent and in CIRCLE MODE Rz rrrr Cz cccc is sent In the COUNT Mode all nonzero counts will be transmitted by tag letter groups e g Az aaaa Bz bbbb Cz CCCC etc users only have to transmit once to send all counts In AREA CHORDS Mode A xx xxxxxxxx D1 x xxxx D2 x xxxx is sent In either of the TIMER Modes marker or measurement TIMER z xx xx xx xx will be transmitted All measurement data will be followed by a carriage return and the UNITS displayed in the measurement overlay e g MICRONS DEGREES An optional line feed can be selected from the terminator option in the RS 232 Menu On the keyboard controller the transmit function is operated by pressing the RS 232 TRANSMIT Print Screen key On either the knob or joystick controller the transmit function is operated by the button labeled TRANSMIT At any time operators may simply press the
64. aved calibrations 0 9 Units and labelling information for each calibration number are also displayed in the menu to aid in quick selection If markers are being sized and users have selected to display marker size the calibra Marking 49 Ctrl Help Pause Break Ctrl Alt 50 Marking tion number selected will affect the resulting measurements Also if users are in the ALIGN Mode the calibration number will affect the offset distance display at the top of the screen since this display utilizes calibrated units the offset coordinates displayed at the lower left of the screen reflects coordinates in pixels SELECT CALIBRATION Scroll Lock Calibrate Calls up a series of Calibration Menus which assist users in changing the calibration of an overlay First select the desired overlay then press the CTRL SELECT CALIBRATION Scroll Lock Follow instructions to position measuring lines and enter XY values Users are also given the opportunity to label the calibration with units magnification ID or any other label information NOTE Always calibrate using a stage micrometer or other object of known size and recheck calibrations For accurate line positioning and other calibration details refer to Section 4 Video Measuring Calibration Calibrations cannot be changed if they are protected see page 66 HELP Pause Break Activates the HELP Mode Pressing HELP Pause Break then any oth
65. ces Measurement functions keys with which SHIFT can be used include XY MEASURE F9 and COUNT F11 Measuring 69 CALIBRATION 70 Measuring The basic concept behind calibration is simple The operator places an object of known size in the field of view of the camera positions measuring lines against its edges and enters the object s dimensions on the screen The VIA 170 then calculates a scale factor and calibration is complete Although the calibration process is easy subsequent measurement errors may occur if an operator does not adhere to the calibration proce dures which follow As discussed in the Overview on page 53 the video measuring lines move within a grid which is for NTSC standards 1024 pixels wide by 482 pixels high or for CCIR and PAL standards 1024 pixels wide by 512 pixels high In other words a vertical measur ing line may be positioned in any one of 1024 locations from left to right on the screen Similarly a horizontal line has 482 potential locations from top to bottom The VIA 170 maintains a continuous count of the number of pixels between the mea suring lines Measurements are internally calculated by multiplying the number of pixels counted between the lines by a scale factor The scale factor is equal to the amount the measurement value changes when one measuring line is moved one pixel For ex ample if the screen initially displayed X 0 2000 and then displayed X 0 2005 after one measurin
66. ctive markers or measurement lines on the video screen by tracing the pen on the mouse pad or other smooth surface some operators even use the sides of their legs This allows users to mark on the monitor at a distance The mouse pen can also be used to anchor and size markers on the screen which is also a keyboard function Definitions of the three keys on the mouse pen are discussed below Refer to this section if needed when general instructions later in the manual ask users to position lines or anchor a marker SELECT SELECT BUTTON 1 BUTTON 2 Nil SWITCH Figure 1 5 MP 30 Mouse Pen Controller SELECT BUTTON 71 or First Button a button which anchors the active marker in its current position Also selects which measuring line or cursor will be activated for positioning While in the DRAW mode this button is pressed as the pen is drawn across the mouse pad A drawing line will be displayed accordingly on screen SELECT BUTTON 2 or Second Button zeroes out the display of path length while users are freehand drawing SPEED SWITCH switches the speed of the mouse pen track ball from slow to fast TRACK BALL moves the cursor active markers or measurement lines anywhere on the screen according to how the ball is rolled across a smooth surface Positioning and Sizing Markers When operating the VIA 170 with the mouse pen controller the active marker may be moved anywhere on the screen by lightly dragging the mouse
67. cursor is positioned press the ENTER key to activate the parallel line cursor Lines activated depend on which measuring mode operators are in X XY P P ANGLE CIRCLE COUNT AREA CHORDS TIMERS With two vertical lines the left line is active Press ENTER and the right line is active instead The UP DOWN POSITIONING keys have no affect on these lines With two horizontal lines the top line is active Press ENTER and the bottom line is active instead The UP DOWN POSI TIONING keys position these lines vertically With two horizontal and two vertical lines the top and left lines are active Press ENTER and the bottom and right lines are active The UP DOWN POSITIONING keys position only the horizontal lines With two cross hairs cursors the left cursor is active Press ENTER and the right cursor is active The UP DOWN POSI TIONING keys position each cursor vertically Pressing the UP DOWN POSITIONING keys will position each measuring point vertically on the screen Pressing the UP DOWN POSITIONING keys will position each measuring point vertically on the screen Pressing the UP DOWN POSITIONING keys will position each active tag vertically on the screen Pressing the UP DOWN POSITIONING keys will position each active point vertically on the screen Pressing the POSITIONING keys or any function key other than ENTER while in the TIMER W XY MEASUREMENT Mode has no affect Pressing a POSITIONING key while i
68. d clear only these added lines or other added markers CTRL LINES F5 Align Mode Aligns a marker overlay with an object in the field of view i e to reposition all markers in unison The Offset Display will appear if users have selected to display the marker size or coordinates CTRL F2 At the start the Offset Display in the lower left of the screen reads X z 0 Y z 0 which represents a zero offset or no alignment in terms of pixel coordinates of the lower left corner of the overlay Offset Units will be dis played across the top of the screen in terms of calibrated units Use the keyboard POSITIONING keys or another controller to move the overlay left right up or down The Offset Display will correspondingly reflect pixel coordinates of the lower left corner of each new alignment Negative X values represent marker movement to the left of the default overlay position Negative Y values represent marker movement below the default overlay position To save the offset and exit the Align Mode press ENTER or press any other function key Markers may be added erased or cleared at this point A different offset can be attributed to each of the marker overlays 1 10 To clear an offset and return the marker overlay to the default coordinates Y 0 X 0 press CTRL CLEAR End A warning message will appear to avoid an uninten tional clear NOTE Even when users are in a Measurement Mode the alignment of the markers ca
69. d cross hairs a small target circle small circle small target box and a small box Select a pointer by pressing the POINTERS F1 key until the desired pointer is displayed To cycle backwards through the pointer selections press the SHIFT key plus the POINTERS F1 key Position the pointer using keyboard POSITIONING keys or other controller Press ENTER to anchor the pointer in the marker overlay n a protected overlay users can anchor pointers but they can erase and clear only these added pointers or other added markers For Security Menu setup refer to instructions on page 48 SCALES GRIDS F2 Selects a different scale or grid each time this key is pressed At the first press of the key a horizontal scale will appear The second press will display a vertical scale At subsequent presses a full box grid will appear then a horizontal grid horizontal lines only followed by a vertical grid vertical lines only All scales and grids will be dis played where the last active marker was displayed The active grid or scale will remain sizeable and positionable until anchored To cycle backwards through the scale and grid selections press the SHIFT key plus the SCALES GRIDS F2 key n a protected overlay users can anchor scales grids but they can erase and clear only these added scales grids or other added markers To size a scale or grid press the SIZE OBJECTS TEXT key combination CTRL SHAPES F3 and use the POSITIONING ke
70. d markers The ability to select solid or dashed measuring lines to aid in differentiating measuring lines from the camera image or from the markers Getting Started 7 ADDITIONAL FEATURES On screen Help can be accessed at any time during measuring or marking A Demonstration of Features can be activated to briefly show the various measuring and marking functions of the VIA 170 should a quick overview be needed in training other users 8 Getting Started Boeckeler VIA 170 COMPONENTS KEYBOARD CONTROLLER The keyboard is the user s primary interface with the VIA 170 Figure 1 1 below depicts the VIA 170 keyboard controller In general the keyboard is used to select type position save and erase the markers on the video overlay The keyboard is also used to calibrate and measure as well as guide the user through menu selections A few of these functions may also be controlled with a separately purchased light pen joystick or knob controller mouse pen or other mouse controllers refer to Optional Components on page 12 General definitions of each function key on the keyboard follow MARKER KEYS Graphics f MEASUREMENT KEYS A LS SEED EY ERY ZA SHIA NEED AE LA Sey RW EN El MARKER KEYS 4 7 Text Numbers ACTION KEYS Figure 1 1 VIA 170 Keyboard Controller Keyboard Controller Definitions MARKER KEYS These keys allow operators to select the graphics or mark
71. dit it press STATISTICS TABLE ALT S ANGLES CIRCLES F10 Activates one of two different modes in which an operator may perform either a mea surement of an angle or a measurement of a circle A brief description of the two measurement modes is given below ANGLE displays the angle when defined by at least four points or at least two points per line segment CIRCLE displays the radius and circumference of a circle when defined by at least three points To measure angles or circles in the Measure w Statistics Mode enter the ANGLE or CIRCLE Measurement Mode then press ALT XY Measure F9 The Statistics Display will appear on screen along with the measurement cursors Detailed ANGLE CIRCLE Measurement procedures begin on page 89 CTRL ANGLES CIRCLES F10 Clear Points Clears points from a circle or angle measurement An active cursor will remain ready to begin a new circle or angle If in the Measurement w Statistics Mode be sure to insert the displayed measurement in the Statistics Table before clearing points COUNT F1 1 Activates the cell particle counting mode Each time this key is pressed users will cycle through to the next tag option A J To cycle backwards through the options press the SHIFT COUNT F11 A brief description of the display options is given below A displays the total number of cells particles counted using the A tag B displays the total number of cells particles counted using the B ta
72. e the current MEAN is INVALID this means that there are measurements in the Statistics Table that are incompatible with Area Mode measurements To clear the Statistics Table press CLEAR STATS ALT D A 000000 0000 MICRONS D1 000 00 1000X D2 000 00 CAL 7 Figure 4 28 Area Measurement Option 4 lf not already selected select the desired calibration number by pressing the SELECT CALIBRATION Scroll Lock key The Select Calibration 4 Menu will appear on screen Follow instructions to select the desired CAL Operators will be automatically returned to the AREA CHORDS Measurement Mode and the selected CAL will be displayed in the upper right corner of the screen Operators may begin measuring when the desired number is displayed 5 To measure the area of the object in view A Position the cross hairs cursor inside the shape to be measured refer to Figure 4 28 B Press the pen tip into the screen on top of the cursor or press ENTER on the keyboard controller Select buttons on optional controllers will achieve this same function The shape will fill with a solid color and the resulting area will be displayed in the upper left of the screen refer to Figure 4 29 NOTE If the area outside of the shape filled as well as the inside check to be sure the shape was entirely closed 6 To measure the area on a new sample or marker overlay 102 Measuring Boeckeler VIA 170 A 001547 6787 MICRONS D1 0
73. e 3 3 Creating a Custom Ruler or Reticle Coordinates displayed at lower left are for the active scale small scale to right of reticle Size display in upper part of screen represents the size of the active scale Tick marks may also be created simply by placing sized scales end to end either vertically or horizontally Vertical and horizontal scales on the same overlay create a custom reticle refer to Figure 3 3 CTRL SCALES GRIDS F2 Show Marker Size Coordinates Although this key combination has a measuring function it is used primarily in conjunc tion with marking keys to assist in sizing and positioning Pressing this key combina tion while in the Marker Mode displays the Marker Display Menu in which users can choose to display the size of an active marker and or the coordinates of an active marker Marker size and coordinates are not displayed while users are in the Measurement Mode Follow instructions in the Marker Display Menu After making a display selection and choosing SAVE or CANCEL users will be returned to the current marker overlay The marker size and or coordinates display that was selected if any will be displayed on screen with the markers Below are explanations of the three available options in the Marker Display Menu DISPLAY SIZE displays the length of an active scale or line the height and width between active grid lines or the height and width of an active circle or box displayed in the upper left corner
74. e Security Menu markers and calibra tions can still be protected from an inadvertent change However any user is free to select protection options in the Security Menu RADIUS the length of a line which extends from the center point of a circle to the periphery of that circle RGB a video signal which is segregated into three or four picture component signals red R green G and blue B signals Synchronization information may be included with the G signal or may be separate RS 170 see ElA RS 170 RS 232C the specifications describing serial interface communication standards SCALE a linear marker with two end points expressing one unit of measure In the VIA 170 scales may be sized vertically or horizontally to any lengih Scales may be placed on Boeckeler VIA 170 Boeckeler VIA 170 an overlay in any number and in combination with other markers Placed end to end or in combination with cross hairs markers scales may be used to create custom rulers on an overlay SCALE FACTOR a constant generated by the VIA 170 during calibration The constant represents the incremental value by which the measurement display changes when a measuring line is moved one pixel width STAGE MICROMETER a precision reference tool used for calibration with graduation marks engraved or photographically reproduced on glass usually used with a microscope STATISTICS the collection organization and interpretation of
75. een wherever the last active marker or cursor was located After typing one line the text label may be positioned anywhere on the screen with keyboard POSITIONING keys or another controller The text label may be positioned before or after typing To select a small or large size of text press the SIZE OBJECTS TEXT SIZE key combination before anchoring the line of text CTRL SHAPES F3 To anchor or save the active line of text press ENTER The line of text will be anchored and the text cursor will shift down one line ready for another line of text Text does not wrap so press ENTER at each line end Pressing SHIFT a TEXT NUMBER key will display the upper case version of that key To exit the text mode simply press any other marking or measuring function key NOTE The numeric keypad on the far right of the keyboard can be activated by pressing the NUM LOCK key When changing colors of an active text label bear in mind that the text will cycle through the three available colors and the text background will cycle through three available colors Never will the text color match the background color In addition the text background will cycle to no fill so that text can be displayed without a back ground In total there are nine different color combinations in which the background and text can be displayed Marking 45 USING THE ACTION KEYS IN MARKING 46 Marking UP DOWN POSITIONING KEYS Positions the active ma
76. epre sent the center point of the shape crossline or cursor Coordinates for an active arrow pointer represent the tip of the arrow Coordinates for active scales represent the intersection of the base scale line and the left or top end line For an active line of text or an active date time label coordi nates represent the upper left corner of the display DISPLAY BOTH displays both the size in upper left corner and the coordi nates in lower left corner of an active marker NO INFORMATION allows users to remove the display from the marker overlay SHAPES F3 Selects a box or a circle each time this key is pressed Circles and boxes will remain active sizeable and positionable until anchored To size an active box or circle press the SIZE OBJECTS TEXT F3 key then use the keyboard POSITIONING keys or other controller to adjust the shape For fine sizing press the CTRL key along with the desired POSITIONING key Pressing the LEFT POSITIONING key will make the shape narrower while pressing the RIGHT key will make the shape wider Pressing the UP POSITIONING key will make the shape taller while pressing the DOWN key will make the shape shorter When the desired size is displayed press ENTER to store the size The sized circle or box may now be positioned anywhere on the overlay After positioning anchor the circle or box by pressing ENTER n a protected overlay users can anchor shapes but they can erase and clear only
77. er key or key combination will display information about the use of that key or key combination Arrows in the upper right corner of the HELP screen indicate than an additional page of HELP is available Press the UP or DOWN POSITIONING key to access that page To exit HELP press ENTER HELP Pause Break Demonstration of Features Activates a demonstration of the VIA 170 features which may be useful in giving new users an overall orientation on the product The demonstration is brief To cancel the demonstration while in progress press any function key To pause the demonstration press the HELP Pause Break key To speed up certain portions of the demonstra tion repeatedly press Scroll Lock until the desired feature is displayed The demon stration will not fast forward while motion is displayed ALT I Autointercept On Off Automatically closes the gap between endpoints of a drawn line when those endpoints are fairly close together This feature is desired when users are preparing to measure the area of an image which must be defined with a closed shape or closed freehand drawing Turning on the autointercept feature enables users to draw a shape without concern for making a complete closure When the drawing is nearly closed and the light pen is lifted away from the screen the VIA 170 will automatically draw a line connecting the two ends of the line thus forming a shape To turn off AUTOINTER CEPT press ALT I again Af
78. er measurements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table In menus does not affect cursor Use ENTER key to select option OVERLAY Home Removes the measurement overlay from the screen so that only the anchored mark ers in the current overlay are visible This option may be desired before making a video copy To regain a measurement overlay press the desired measurement key CTRL OVERLAY Home Undelete Restores recently deleted marker to its original location on the overlay even while the in a Measurement Mode If markers were recently cleared pressing Undelete CTRL OVERLAY Home restores the full overlay of markers In a protected overlay Undelete only affects added markers Undelete does not affect protected markers PREV OVERLAY Page Up Displays the previous overlay and any markers stored in that overlay along with the current measuring lines or cursors measuring points in ANGLES CIRCLES Mode will be erased Pressing this key repeatedly will continue to display each previous overlay in descending order along with the current measuring lines The number of each new overlay will appear briefly at the bottom right corner of the screen 1 10 These overlays cannot take on new markers while in the current Measurement Mode However markers may be erased in the Measurement Mode refer to the UNDO and CLEAR functions descriptions which
79. erent overlays each of which can be recalled even after the unit has been pow ered down Easy adjustment of gray level or color of markers for optimal contrast with the video image color markers will be displayed only if an optional VIA RGB or VIA Y C interface is being used Hide or show stored markers with the touch of a key to instantly view the video image alone or with the markers Erase markers from the overlay all at once or one at a time An Undelete option allows users to undo their most recent erase or clear Protect marker overlays when desired so that certain markers cannot be erased unless a password is entered Other users may add markers to the protected overlay and these added markers can be erased but the protected markers cannot be erased VIDEO MEASUREMENT e 6 Getting Started Separate X axis and Y axis calibration ensures accuracy of all measurements Ten calibrations may be set up and stored for multiple measurements Each set up is labelled and accessible from the working screen Nonvolatile memory stores and recalls all calibrations even after the unit has been powered down Protect calibrations when desired so that once calibrations have been set they cannot be altered without entering a password Operators can change from one protected calibration to another 10 Measurement Modes 1 Horizontal X Operators move two vertical lines to each edge of an object The measurement is continuously di
80. ers Graphics desired and the appearance of those markers Such keys include POINTERS F1 SCALES GRIDS F2 SHAPES F3 CROSSLINES F4 LINES F5 DRAW F6 SHOW DATE TIME F7 and CHANGE COLOR F8 Auxiliary functions which support these keys are activated by pressing CTRL a marker key Auxil iary marker keys are those for SHOW MARKER SIZE COORDS SIZE OBJECTS TEXT ALIGN CALIBRATE LIGHT PEN SET DATE TIME and SET COLOR amp BRIGHTNESS Boeckeler VIA 170 Getting Started 9 MARKER KEYS Text and number keys on the VIA 170 keyboard controller perform Text Numbers as alphanumeric labels or markers which are immediately typed on the screen when pressed Upper and lower case characters are available Each line of type may be freely positioned on the overlay until selected or anchored MEASUREMENT As the name suggests measurement keys activate the measuring KEYS capabilities of the VIA 170 so that vertical horizontal point to point angle or circle measurement count area chords and elapsed time measurements may take place on any video image with or without a selected marker overlay Such keys include XY MEASURE F9 ANGLES CIRCLES F10 COUNT F11 AREA CHORDS F12 Auxiliary functions which support these keys are activated by press ing CTRL or ALT a measurement key Auxiliary measurement keys are those for CHANGE LINE PATTERN CLEAR POINTS TIMER W XY MEASUREMENT TIMER w MARKERS MEASURE W STATISTICS ACTION
81. es From its beginnings as a small manufacturer of precision micrometer heads in the early 1940s to its cutting edge precision measurement products today Boeckeler Instru ments Inc has remained a cornerstone of innovation and reliability in the worlds of science and industry Representing a team well rounded in design development and service Boeckeler products have long been applied to fields as diverse as precision machining aviation and aerospace electronics biomedical research clinical diagnostics metallurgy and forensics Aas Boeckeler grew over the decades its creative staff introduced such innovations as a toolmaker s microscope to handle shop floor capacity with watchmaking precision and speed digital micrometers and readouts digital filar eyepieces for microscopic mea surement video image analysis systems and auto positioning systems for microscope stages controlled by computer If you are interested in Boeckeler s other products or in keeping informed of Boeckeler s latest developments contact a Boeckeler dealer in your area or call Boeckeler Instruments Inc in Tucson Arizona at 800 552 2262 or 520 573 7100 Other Fine Boeckeler Products VIA 220 Video Pointer VIA 930J Video Crossline Generator VIA 50 Video Image Marker VIA 9100 Video Measurement System VIA 9110 Video Hardness Measurement System VIA 9150 Video Image Marker Measurement System Digital Readouts Digital Micrometers
82. f these images are displayed then the VIA 170 is working properly and installation is complete If the images are not properly displayed on the screen refer to the Troubleshooting Guide in Section Six Appendices VIA 170 VIDEO IMAGE MARKER MEASUREMENT SYSTEM A001753 V1 0 COPYRIGHT 1994 BOECKELER INSTRUMENTS INC KEYBOARD INTERFACE A001544 V1 0 Figure 2 5 Sample Copyright Message version numbers may vary Boeckeler VIA 170 Boeckeler VIA 170 INSTALLATION FOR OPTIONAL LIGHT PEN EXTENSION The LPX DRV extension driver and LPX CBL cable extensions are accessories provided by Boeckeler Instruments which extend the distance between the VIA 170 and the light pen This extension allows operators to use a light pen at the front of a large room while the VIA 170 is conveniently placed at the back of the room In order to ensure that signal power remains strong throughout the length of the light pen cable a transmitter receiver and power supply are necessary components of the driver This section describes the installation procedures for the light pen light pen extension cable and driver the latter of which consists of a cable transmitter cable receiver and cable power supply Instructions for installation of the VIA 170 to a video display and video source begin on page 23 To install the VIA 170 with optional light pen driver and extension cable refer to Figure 2 6 1 Make all connections before applying power
83. for mation refer to Section Five Communication SELECT CALIBRATION Scroll Lock Calls up the Select Calibration Menu in which operators select which preset calibra tion to use before measuring Users will have a choice of 10 saved calibrations 0 9 Units and labelling information for each calibration number are also displayed in the menu to aid in quick selection A CAL may be selected before entering a Measurement Mode or while in a Mea surement Mode or Measurement w Statistics Mode In any case the CAL should be selected before measuring takes place since the measurement results are depen dent upon the calibration used Some operators will use more than one CAL on a single measurement For example users may have calibrated CAL 8 in inches and CAL 9 in metric units millimeters microns etc thus two calibrations may be used as a means to convert a single measurement into other units of measure While the measurement display is in the upper left of the screen the CAL is shown in the upper right of the screen along with any label information that was entered during calibration If in the Measure w Statistics Mode users may change the CAL as above and enter values into the Statistics Table using the new CALA WARNING Users will be able to enter measurements that were made using different calibrations Be sure that mea surements entered are compatible with those already in the table A warning message will only a
84. for positioning markers rather than for positioning measuring lines Moving through Menus Except for activating one of three measuring modes in the Area Chords Data Line the mouse pen controller has no effect in menu selections Use the keyboard POSITIONING keys instead OTHER MOUSE CONTROLLERS In general when operating the VIA 170 with other than MS or Microsoft mouse controllers using the buttons on the mouse should achieve the same functions as using the select buttons on the mouse pen refer to previous page Select Button 1 would be the left button on a mouse device Select Button 2 would be the right button on a mouse device Boeckeler VIA 170 Getting Started 19 Section Two Installation INSTALLATION To install the VIA 170 with composite monochrome EIA RS 170 monochrome CCIR composite color NTSC or PAL video sources and monitors refer to Figure 2 1 1 Make all connections before applying power 2 Video source connection Connect a 75 OHM BNC coaxial cable between the video output of the video source and the CAMERA connector on the back of the VIA 170 3 Video monitor connection Connect a 75 OHM BNC coaxial cable between the MONITOR connector on the VIA 170 and the video monitor FUSE TO TO TO HOLDER OPTIONAL OPTIONAL PRINTER OR NOT USED IN 1 2 AMP LIGHT PEN MOUSE DEVICE COMPUTER COMPOSITE SYSTEMS Dun __ ie LIGHT PEN RS 232C RS 232C VIDEO CONTROL
85. g C displays the total number of cells particles counted using the C tag D displays the total number of cells particles counted using the D tag etc through J displays the total number of cells particles counted using the J tag Measuring 59 Ctrl AREA F12 CHORDS Ctrl 60 Measuring Detailed COUNT Measurement procedures begin on page 98 NOTE The Measure ment w Statistics Mode is not active in COUNT Mode Also unlike markers when tags are cleared pressing UNDELETE CTRL Overlay Home will not retrieve cleared tags Undelete will only undelete the most recently anchored tag CTRL COUNT F11 Timer w XY Measurement Displays timer while users are in the XY Measurement Mode Users can move mea surement lines and drop cursors while the timer is running A brief description of this mode is given below 00 00 00 0 the elapsed time is continuously displayed from the moment the timer is activated to the moment it is stopped Detailed TIMER w XY Measurement procedures begin on page 107 NOTE The Measurement w Statistics Mode is not active in TIMER Mode AREA CHORDS F12 Activates one of three different options in which an operator may perform area and chord measurement Each time this key is presesed users will cycle through to the next area or chord option To cycle backwards press SHIFT AREA CHORDS F12 A brief description of each option is given below A the area within any clo
86. g line was moved one pixel then the scale factor would be five 5 Thus in this example every time a measuring line is moved one pixel the measurement will change by an increment of five During calibration operators position the measuring lines and then manually enter the values for the X and Y axes The VIA 170 divides the value for each axis by the number of pixels between the measuring lines The result is then stored as the new scale factor For example if an operator entered the value X z 4 0000 and the VIA 170 counted 400 pixels between the measuring lines then the resulting scale factor would be 100 If the operator then moved the lines apart by one more pixel the measurement would read X z 4 0100 The decimal point is positioned by the operator and has no mathematical significance The internally calculated scale factor discussed above should not be confused with the calibration number CAL which is a label displayed in the upper right hand corner of the measurement screen This label allows the operator to assign a different number to each calibration A maximum of ten different calibration numbers may be stored Also displayed in the upper right corner is the calibration label Typically calibration labels serve as reminders of the power of magnification if any used during calibration Calibration numbers and calibration labels do not affect measurement calculations in any way The calibration of the VIA 170 is valid only for a
87. g of the angle refer to Figure 4 19 After each point is anchored a cross hairs cursor will appear ready for positioning If the Angle Display is on the line representing the second leg of the angle will now transverse the anchored points NOTE When two lines are defined four angles are also defined refer to Figure 4 20 The VIA 170 measures and displays only one of the angles Knowing one angle operators can quickly perform the simple calculations depicted in Figure 4 20 in order to determine the measurements of the remain ing angles if desired Use these formulas to calculate other angles NOTE While placing points along the second leg there are certain cases wherein an obviously obtuse angle may suddenly appear to display an acute measurement or an acute angle may suddenly display an obtuse measure ment This is not an error The new measurement displayed is actually of the complementary angle from which the first angle measurement can be easily Boeckeler VIA 170 determined Due to the way the averaging algorithm of the VIA 170 works there will be times when the VIA 170 will switch from measuring angle A to measuring angle B In either case the complementary angle can be deter mined using the formulas in Figure 4 20 To enter the displayed angle into the Statistics Table 1 From the Measure w Statistics Mode press ENTER STATISTIC Insert The Statistics Display will now read one COUNT higher and the MEAN wil
88. ght pen across the screen The marker measuring line or cursor will follow this movement at a specified offset For example dragging the pen to the left on the screen will correspondingly move the mea suring line or cursor to the left on the screen one inch away from the pen tip if the offset was calibrated at one inch for calibration instructions follow the procedure above While measuring the light pen may be used to quickly position measuring lines cursors When first measuring only the top and or left lines will be active To activate the right and bottom lines press ENTER on the keyboard then continue with the light pen NOTE The measuring lines may shift as the pen approaches the screen For this reason Boeckeler recommends that light pens be used for positioning markers rather than for positioning measuring lines Moving through Menus Except for activating one of three measuring modes in the Area Chords Data Line or changing the count tag in the Count Data Line the light pen has no effect in menu selec tions Use the keyboard POSITIONING keys to maneuver within menus Boeckeler VIA 170 Getting Started 13 KNOB CONTROLLER Although the VIA 170 operates primarily with the standard keyboard controller for fine measurement and positioning the KS 30 Knob Controller is recommended refer to Figure 1 3 The knob controller operates simultaneously with the keyboard controller and can operate simultaneously with optional ligh
89. have an optional knob controller set the COMPARE switch to the ON position Rotate the right knob to move the measuring lines in unison 3 lf operators have an optional joystick controller tilt the joystick left or right to move the measuring lines in unison By positioning the pair of measuring lines at different locations on the screen operators may quickly determine whether or not objects in the field of view meet size specifications 80 Measuring Boeckeler VIA 170 Boeckeler VIA 170 To enter the displayed X value into the Statistics Table 1 From the Measure w Statistics Mode press the ENTER STATISTIC Insert key The Statistics Display will now read one COUNT higher and the MEAN will incorporate the new value To view the entire Statistics Table or to edit it press STATISTICS TABLE ALT S WARNING Users will be able to enter measurements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table A warning message will appear only if values being entered into the table are from a different Measurement Mode than those already in the table To quit measuring or comparing in X Mode 1 If using the optional knob controller place the COMPARE switch in the OFF position 2 Onthe keyboard controller press any function key Measuring lines will disappear and operators will have exited the X Measure ment Mode Y Axis Measurement To mea
90. he area to be measured A On the keyboard controller select size and anchor a marker that en closes an empty shape e g a circle or box or create a closed shape with straight lines or freehand drawing lines NOTE Freehand drawing is available only with the optional light pen or mouse device lt is important to understand that the area will be calculated from within the inside edges of the shape or drawn line The entire illuminated line will not be calculated in the area Additionally any line segment or marker that falls within the shape will be discounted from the total area measurement This means that in drawing one continuous line any overlap of endpoints must take place outside of the drawn shape refer to Figure 4 27 Figure 4 27 Drawing Perimeter of Area 2 After the shape or drawing is complete and anchored press the AREA CHORDS F12 key This is the AREA CHORDS Measurement Mode refer to Figure 4 28 A preference arrow is positioned after the area display A designating the option which is currently active A positionable cross hairs cursor is present in the overlay along with the drawn shape and any other anchored markers 3 If measurements will be used in statistical calculations press MEASURE W STATS ALT XY MEAURE F9 The Statistics Display with the current COUNT and MEAN will appear in Boeckeler VIA 170 Measuring 101 the lower left corner of the screen along with the cross hairs cursor If th
91. he first leg of the angle and are defining the second leg of the angle when they turn on or off the display the new display will affect only the second leg ALT D Clear Statistics Table Clears the Statistics Table of all entered values Users may clear the table from any mode measuring or marking A warning message will appear to avoid an unintentional clear ALT S Statistics Table Displays the Statistics Table and all values if any that were entered while in a Measure w Statistics Mode If the table is empty of entries values will be displayed UNDEF for undefined This table may be accessed from any mode although it only reflects values entered from a Measure w Statistics Mode The Statistics Summary refer to Figure 4 3 is at the top of the table and displays the COUNT or the total number of active values entered in the table The MEAN is the sum of all the active values divided by the COUNT ST DEV Standard Deviation is a measure of the variability of the data RANGE is the difference between the HI high est and LO lowest active values This area cannot be edited although it can change as values are added deleted undeleted or cleared from the table Boeckeler VIA 170 Shift Boeckeler VIA 170 Statistics Table R e 0041 2 0258 6 0000 4 0002 5 0040 8 0256 0 0041 6 0261 1 0000 8 0005 1 0041 2 0258 7 0041 6 0261 1 0040 8 0256 0 UNDEF UNDEF UNDEF UNDEF UNDEF UNDEF UNDEF UNDEF UNDEF UNDEF F
92. igure 4 3 The Statistics Table for Circle Measurement Radius Circumference To delete a value highlight the value and press DELETE Undo To undelete a value highlight the value and press ENTER STATISTIC Insert To clear all values press CLEAR STATISTICS TABLE ALT D Up to 500 values can be stored in the Statistics Table To view the next page of values highlight the NEXT option and press ENTER To view the previous page of values highlight the PREV option and press ENTER To exit the Statistics Table highlight the EXIT option and press ENTER Statistics are transmitted by entering the desired Measure w Statistics Mode then pressing the RS 2323 TRANSMIT Print Screen key To select whether all statistics get printed or just the Statistics Summary press CTRL RS 232 Print screen WARNING Users will be able to enter measurements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table A warning message will only appear if values being entered into the table are from a different Measurement Mode than those already in the table e g XY measure ments vs angle measurements This warning message will offer users the opportu nity to clear the table of current values and enter the new value or to proceed measur ing without entering new values in the table SHIFT Function Key Reverse Toggle Allows users to cycle backwards through the available choi
93. ike a writing utensil and is pressed against the screen to position markers or to freehand draw or write directly on the monitor Broad definitions of the light pen button functions are listed below Refer to this section if needed when general instructions later in the manual ask users to anchor a marker to position a cursor or to draw Figure 1 2 LP 32 Light Pen Controller TIP BUTTON a button which positions active markers measurement lines and measurement cursors when lightly dragged across the screen Also draws on the screen when the DRAW F6 key is activated and the pen tip is pressed into the screen while drawing Quickly clicking the Tip Button into the screen anchors active markers or measurement cursors In the Area Chords Mode clicking the pen tip in the data line activates measurement in the Area or Chords Mode The light pen is not active in making menu selections BARREL BUTTON zeroes out the display of path length while users are freehand drawing 12 Getting Started Boeckeler VIA 170 Positioning and Sizing Markers When operating the VIA 170 with the light pen controller the active marker may be moved anywhere on the screen by lightly dragging the light pen across the screen The marker will follow this movement at a specified offset For example dragging the pen to the left on the screen will correspondingly move the marker to the left on the screen one inch away from the pen tip if the offset was calibrated a
94. ilting the joystick left and right makes the object wider or narrower After objects are sized users can save the size by pressing the SELECT button on the joystick Positioning of the sized object may now take place Positioning Measuring Lines or Cursors When measuring with the joystick controller tilting the joystick positions measuring lines and measuring cursors While measuring in the X Mode the vertical measuring lines are controlled by tilting the joystick to the left and right To move the lines individually press the SELECT button while tilting the joystick to the left or right While measuring in the Y Mode the horizontal measuring lines are controlled by tilting the joystick forward and backward To move a line independent of the other press the SELECT button while tilting the joystick forward or backward While measuring in the XY Mode the horizontal measuring lines are controlled by tilting the joystick forward and backward and the vertical measuring lines are controlled by tilting the joystick to the left and right To move a line independent of the other press the SELECT button while tilting the joystick When measuring in the P P Mode point to point one cross hairs cursor will move To move the other cross hairs cursor press the SELECT button and tilt the joystick forward or backward left or right or diagonally When measuring in the ANGLE Mode or CIRCLE Mode the first cross hairs cursor will appear on screen
95. intersection of the crossline on the marker overlay The intersection may also be selected as CLOSED or OPEN NOTE Automatically centered crosslines are locked and cannot be positioned Marking 39 Lines F5 Ctrl 40 Marking even while active Although seemingly anchored centered crosslines are not saved on the overlay until they are anchored by pressing ENTER After making selections and choosing SAVE or CANCEL users will be returned to the current marker overlay Changes that were saved in the menu will now affect the active crossline LINES F5 Activates straight line drawing and selects one of three line thickness cursors each time the key is pressed Lines are available in fine medium or bold thicknesses To cycle backwards through the line thickness selections press the SHIFT LINES F5 Select the thickness displayed by the cursor then position the cursor where the line is to begin by using the keyboard positioning keys or other controller To display the length of the line while drawing be sure to first activate the SIZE display by pressing CTRL SCALES GRIDS F2 and selecting MARKER SIZE option To anchor the first endpoint of the line press ENTER Reposition the cursor where the line is to end A straight line will automatically follow the second cursor until the cursor is anchored To anchor or save the line press ENTER n a protected overlay users can anchor lines but they can erase an
96. ius as well as measure the area and chords of an object A cell particle counting mode and elapsed time measurement are also available at the touch of a key The security feature allows protection of all calibrations so that once calibrations have been made they cannot be changed without a password although all users will be able to change from one protected calibration to another Getting Started 3 Once in a Measurement Mode users may select whether to measure with or without the ability to enter measurements into a Statistics Table This table can contain up to 500 measurement values and display calculations for the count mean high value low value and standard deviation Statistics and measurements can be output as ASCII data via an RS 232 serial port for use with computers or printers While measuring or marking users are aided with the availability of on screen help A brief demonstration of features is also offered should a quick overview of the VIA 170 be needed in training other users Standard components of the VIA 170 include a keyboard controller Optional features include an LP 32 light pen which adds freehand drawing and path length features to the VIA 170 Also available is the KS 30 knob controller or JS 40 joystick controller both ergonomically designed for ease in fine measuring The VIA 170 is also compatible with MS and Microsoft mouse devices The VIA 170 is compatible with most common video standards incl
97. ixels between the measuring lines This number is multiplied by an internally generated constant called a scale factor The product is displayed as a measurement in the upper left hand corner of the video screen Each measuring key s function is described in the next section followed by step by step instructions for calibrating and measuring Measuring 53 THE MEASUREMENT MODE 54 Measuring Description When operators press the XY MEASURE F9 key the ANGLES CIRCLES F10 key the COUNT F11 key or the AREA CHORDS F12 key the VIA 170 displays one of 10 different Measurement Modes over the video image refer to Figure 4 1 Each mode includes the corresponding measuring lines or cursors and the measurement data The display of this data varies slightly depending upon the Measurement Mode in use A description of each of the nine measurement displays is given below The upper left of the screen Xz D1 D2 A J 00 00 00 00 continuously displays the distance between the vertical mea suring lines when in the X Mode continuously displays the distance between the horizontal measuring lines when in the Y Mode continuously displays the distance between the vertical and horizontal measuring lines when in the XY Mode continuously displays the distance between the cross hairs cursors when in the P P Mode displays the angle when defined by four points in the ANGLE Mode displays the radius and circumference
98. key plus the AREA CHORDS F12 key The preference arrow will be positioned after the D12 xxx xx display and a cross hairs cursor labelled with a 1 will appear on screen refer to Figure 4 30 If operators enter this mode immediately after calculating the area the area measurement will continue to be displayed in the upper left of the screen The filled area of the shape will disappear and the word AREA will appear on the shape to remind operators which image corresponds with the area mea surement display refer to Figure 4 30 A 001547 6787 MICRONS 000 00 1000X D2 000 00 CAL 7 Figure 4 30 Chord Measurement Option 2 Position the cursor along the perimeter of the object This will be the first endpoint of the distance displayed as D1 NOTE In this mode the VIA 170 will measure the distance from the center of the cursor Also the Measure w Statistics Mode is only active for entering area measurements Chord measurements cannot be entered 3 Anchor the cursor by pressing the pen tip into the screen on top of the cursor or by pressing ENTER on the keyboard controller The select buttons on optional controllers will achieve this same function The cursor will be anchored and the second cursor will appear ready for positioning 104 Measuring Boeckeler VIA 170 Boeckeler VIA 170 A 001547 6787 MICRONS D1 013 45 1000X D2 000 00 CAL 7 Figure 4 31 Measuring the D1 Chord Position the second cursor al
99. l Radio Consultative Committee an international telecommu nications standards setting body of the United Nations The CCIR standard is used throughout most of Europe and Africa except France and parts of northern Africa CHORD a line segment which joins any two points of an area s perimeter CIRCLE a circle or elliptical marker In the VIA 170 circles may be sized into perfect or oval shapes Such markers may be placed in an overlay in any number and in combination with other markers CIRCLE DISPLAY the feature in the VIA 170 which allows users to display a graphic of a circle while users place points to define that circle This display will change slightly as each point is added Turning on the display can help users align the edges of the circle against the object in the field of view Turning off the circle display may be preferred when users need an unobstructed view of the video image CIRCUMFERENCE the distance of a line bounding a circle or any approximately circular area CLEAR the action key which allows operators to clear the overlay of all markers at once A single active marker will remain on screen CONTROLLER a device which controls the creation positioning and storage of markers or measuring lines on a VIA 170 overlay such as a keyboard light pen or knob controller COORDINATES a set of numbers used to specify the location of a point on the video monitor COUNT to add up units or groups of unit
100. l incorporate the new value To view the entire Statistics Table or to edit it press STATISTICS TABLE ALT S WARNING Users will be able to enter measurements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table A warning message will appear only if values being entered into the table are from a different Measurement Mode than those already in the table To quit measuring in ANGLE Mode 1 On the keyboard controller press any function key The cross hairs and any measuring lines will disappear and operators will have exited the ANGLE Mode To measure an angle using only three points 1 Place the first and second points of the first leg as described in Step 4 on pages 90 91 The second point will be anchored Users should be sure not to position the second active cross hairs cursor Instead let it lie directly on top of the second point of the first leg it will be anchored there 2 Press the SPACE BAR to activate the second leg of the angle Ie ae Angle 1 X Angle 2 360 Angle 3 180 Angle 4 180 minus Angle 1 minus Angle 1 plus Angle 1 Figure 4 20 Measuring Other Angles When One Angle is Known Boeckeler VIA 170 Measuring 93 A 26 5 Degrees Leg 2 SPACE for Leg 1 Figure 4 21 Measuring an Angle Using Three Points 3 Press ENTER The first point of the second leg will be anchored on to
101. label will disappear If there is a DATE TIME label in a protected overlay users cannot reposition it they cannot change the display in the Set Date Time Menu and they cannot clear or undo the label To set the date or time press CTRL SHOW DATE TIME F7 CTRL SHOW DATE TIME F7 Set Date Time To SET DATE TIME press the CTRL SHOW DATE TIME F7 The Set Date Time Menu will be displayed unless the label is protected in which case the message will flash on screen that the Date Time Label is Protected In the menu enter the desired number displayed over the cursor or press ENTER to move the cursor to the next data entry line Once the digit is changed the cursor will automatically move to the next numeric position or entry Continue this process until all figures are correct When in the DISPLAY option press the space bar to select displaying the TIME only DATE only or both DATE amp TIME Press ENTER to save and exit the menu or position the cursor over the CANCEL option if the previous settings are desired After selections are made users can exit the menu and return to the overlay and mode they were in before entering the Set Date Time Menu Boeckeler VIA 170 Change Color F8 Ctrl Boeckeler VIA 170 CHANGE COLOR F8 Changes the color or gray level of the active marker for optimum contrast with the video image or to contrast the current marker with other markers on the overlay Repeatedly p
102. le Sizeable circles and ellipses may be placed anywhere on screen Sizeable boxes or rectangles may be placed anywhere on screen Crosslines can be automatically centered and fixed or custom designed Horizontal and vertical lines can be displayed in a variety of line patterns including scaled dotted dashed and solid Intersections can be displayed open or closed Horizontal vertical or diagonal lines may be positioned in one of three different line thickness selections Set the date and time then place the label anywhere on the screen The date time label will remain active even after the VIA 170 is powered down With the optional LP 32 light pen or other mouse controller users can draw or write over the video image Autointercept option allows users to easily close a drawing before measuring the area of that drawing Getting Started 5 Align Mode allows users to position markers in unison over important aspects of the video image Marker alignment assists in quickly comparing features of objects being inspected or studied On screen display of marker width and height or length as users size the box circle scale grid or crossline markers Display of path length is shown while creating straight lines With optional drawing devices path length can be displayed as freehand lines are drawn On screen display of marker position Battery backed up memory allows many different markers to be combined and stored in ten diff
103. line in one of 10 different line patterns each time this key is pressed Patterns include fine medium and bold solid lines fine medium and bold dashed lines fine and bold dotted lines and fine and bold scaled lines To cycle backwards through the patterns press SHIFT CROSSLINES F4 NOTE Since many customers have asked for a crossline that is 1 pixel wide the VIA 170 offers this option although such a crossline may display a jittering horizontal line that is undesirable for some applications Position the active crossline using keyboard positioning keys or other controller To display the coordinates of the intersection while positioning activate the COORDI NATES display by pressing the SHOW MARKER SIZE COORDS key combination CTRL SCALES GRIDS F2 After positioning anchor the crossline by pressing ENTER n a protected overlay users can anchor crosslines but they can erase and clear only these added crosslines or other added markers To change the style of crossline displayed e g one axis only open center or closed center autocenter on or off make changes in the Set Crossline Menu accessed by pressing CTRL CROSS LINES F4 CTRL CROSSLINES F4 Set Crossline Style This key combination is used to access the Set Crossline Menu Follow instructions to select the crossline display as VERTICAL HORIZONTAL or both VERTICAL AND HORIZONTAL Users may also turn on the AUTOCENTER feature which automatically centers the
104. ll users will be able to change between calibration s 0 9 Calibration Protect OFF makes all calibrations suscep tible to being changed To change the password or to enter a password for the first time select the CHANGE PASSWORD option A second menu appears which allows the user to enter the new password confirm it then SAVE or CANCEL the new password NOTE Selecting DELETE as the first character deletes the password entirely Pressing ENTER after a character signifies that the entry is complete it is possible to have a password with less than eight characters Once saved this password must be used in order to be able to change protected calibrations or to enter the Security Menu NOTE f a password is not entered into the system e g deleted calibrations can still be protected However users will not need a password to enter the Security Menu This method allows pur poseful changes to protected calibrations but not accidental changes For instructions on Marker Overlay Protect refer to page 49 ALL GRAPHICS ON OFF ESC Turns off the VIA 170 marker overlay measurement overlay or menu so that only the video image is displayed Pressing this key again or any other key will turn on the VIA 170 overlay and display the measuring lines data and markers as they were before pressing ALL GRAPHICS ON OFF Esc Different from the OVERLAY Home key which allows users to view both the image and the anchored markers Measuring
105. markers CLEAR End does not affect protected markers To CLEAR protected markers the password holder needs to enter the Security Menu CTRL POINTERS F1 select Marker Overlay Protect OFF exit the menu and clear the markers Marking 47 Ctrl CTRL CLEAR End Clear Offset Created in Align Mode Clears the offset alignment of markers in the current overlay so that coordinates will return to their default position X 0 Y 0 A warning message will appear on screen to avoid an unintentional clear Unaligned overlays will remain unchanged NOTE Even when in a Measurement Mode users will be able to clear an offset with this key combination Also a protected marker overlay can be cleared of its alignment NEXT OVERLAY Page Down Advances users to the next overlay and any markers stored in that overlay Pressing this key repeatedly will continue to display the next overlay in ascending order The number of each new overlay will appear briefly at the bottom right corner of the screen Ten different overlays may be stored 1 10 If the overlay was aligned the aligned markers will be displayed at their saved offset but the ALIGN Mode will not be active This means that the entire overlay will not be positionable until users activate the ALIGN Mode d ENTER Anchors an active marker Once dropped a marker cannot be moved or changed However markers may be removed by pressing UNDO Delete or CLEAR End In a
106. n ssseseseeeeee 111 USE OF THE RS 232 PORT 113 Basic Operation saisissant aka 113 Set Up iecit rere tt eii te gis 114 Transmitting Data noe 115 Program to Test Port 116 RS 232 Connector Pin Out 117 Using a Video Printer 118 Section Six Appendices 2 pot ierat tees 119 TROUBLESHOOTING GUIDE 121 WARNING MESSAGES sssss 123 GLOSSARY 2 tote timed rens 125 ABOUT BOECKELER INSTRUMENTS 130 INDEX e 131 ILIST OF FIGURES Figure 1 1 VIA 170 Keyboard Controller 9 Figure 1 2 LP 32 Light Pen Controller 12 Figure 1 3 KS 30 Knob Controller ssss 14 Figure 1 4 JS 40 Joystick Controller 16 Figure 1 5 MP 30 Mouse Pen Controller 18 Figure 2 1 Back Panel of VIA 170 for composite video SYSTEMS sisi 23 Figure 2 2 VIA 170 Sample Copyright Message 25 Figure 2 3 Back Panel of VIA 170 for RGB Y O 26 Figure 2 4 RGB Interface and Y C Interface 27 Figure 2 5 Sample Copyright Message 28 Figure 2 6 Configuration for the LPX Light Pen Ext 29 Figure 3 1 A combination of VIA 170 graphics
107. n be cleared without influencing measurement lines NOTE Alignments can be made and saved even when marker overlays are protected Protection ensures that markers are not inadvertently erased Boeckeler VIA 170 Draw F6 Ctrl Boeckeler VIA 170 DRAW F6 Activates freehand drawing writing mode when users have installed the optional LP 32 light pen MP 30 mouse pen or other MS Mouse or Microsoft mouse device Also selects a different line thickness cursor each time this key is pressed To cycle back wards through the line thickness selections press SHIFT DRAW F6 After selecting the line width position it where drawing is to begin Draw or write with the drawing instrument mouse pen light pen etc LIGHT PEN Press tip button into screen while drawing pen across screen MOUSE Press the left or first button while drawing on mouse pad or other smooth surface A drawing is automatically anchored on the overlay and may not be positioned How ever the drawing can be partially erased or cleared from the screen To erase a segment of the drawing press UNDO Delete To erase an entire drawing and all other anchored markers on the overlay press CLEAR End n a protected overlay users can draw as usual but they can erase and clear only these added drawings or other added markers To obtain the path length of a drawn line as it is being drawn select the SIZE mode in the Show Marker Size Coords Menu CTRL
108. n the TIMER W MARKERS Mode stops the timer if it is running When positioning is complete measuring points in the AREA CHORDS COUNT and ANGLES CIRCLES Modes may be anchored Unlike these points measuring lines and point to point cursors in the XY MEASURE Mode cannot be anchored Therefore these are always positionable and cannot be erased To quit placing these measuring lines operators may press any other function key to begin a new function Measuring 61 LEFT RIGHT POSITIONING KEYS Positions a measuring line or cursor left or right one increment at a time For fine positioning press the CTRL key together with the desired POSITIONING key Only one vertical measuring line and one horizontal line will be active or positionable at a time After one line cursor is positioned press the ENTER key to activate the parallel line cursor Lines activated depend on which measuring mode operators are in X With two vertical lines the left line is active Press ENTER and the right line is active instead The LEFT RIGHT POSITION ING keys position these lines horizontally Y With two horizontal lines the top line is active Press ENTER and the bottom line is active instead LEFT RIGHT POSITION ING keys have no affect on these lines XY With two horizontal and two vertical lines the top and left lines are active Press ENTER and the bottom and right lines are active LEFT RIGHT POSITIONING keys move only the vertical lines P P With
109. ng 14 16 63 measure mode 7 transmitting 66 See also transmit statistics statistics summary in table 65 66 68 69 113 statistics table 4 10 55 57 58 59 63 66 68 69 79 81 83 84 86 87 89 93 95 97 53 70 131 Boeckeler VIA 170 102 103 T tag 98 99 131 tags combination of 100 technical assistance 121 terminator carriage return rs 232c 49 114 text and number keys 5 33 45 67 block of 131 typing 5 text background 45 text block 39 45 text size key 45 three point angle measurement 93 timer modes both 54 61 62 65 w markers 54 60 108 w xy measurement 54 57 60 61 62 107 tip button light pen 12 13 toggle backwards key combination 36 track ball mouse pen 18 transmit button 116 joystick 16 knob controller 14 marker coordinates 115 measurements 57 115 statistics 66 69 113 troubleshooting guide 24 28 121 typed text See text typing U undelete 3 6 47 63 64 in statistics table 69 undo delete key 10 63 64 98 103 106 protected markers 47 63 units label 55 V vertex of angle 89 129 Appendices 137 vertical y measurement 129 via B 3 via 170 3 video copy 46 image 24 image marker measurement system 3 printer 118 sources 131 standards 4 volatile memory 131 W warning message 47 64 66 67 68 69 81 83 86 89 93 97 103 123 X x and y axis measurement 6 54 58 61 62 x axis measurement 54 58 61 62 79 98
110. ng the keyboard POSITIONING KEYS or an optional controller position the inside edge of the left measurement line to the left edge of the selected graduation mark on the stage micrometer see Figure 4 7 4 Position the inside edge of the right measurement line to the left edge of a second selected graduation mark on the stage micrometer see Figure 4 7 The right hand measurement line will overlap the graduation mark Inside Edges of Measurement Lines Left Edges of Graduation Marks VIA 170 Measurement Lines Stage Micrometer Lines BEN Figure 4 7 Calibration X axis Line Placement 76 Measuring Boeckeler VIA 170 To position the lines in the Y axis 1 Orient the stage micrometer so that its graduation marks are parallel to the horizontal measurement lines 2 f using a knob controller place the AXIS switch in the Y position 3 Using the keyboard controller POSITIONING KEYS or optional controller position the lower edge of the top measurement line to the top edge of the selected graduation mark on the stage micrometer see Figure 4 8 4 Position the upper edge of the bottom measurement line to the top edge of a second selected graduation on the stage micrometer see Figure 4 8 The bottom measurement line will overlap the graduation mark The final process in calibration is entering the actual dimensions of the known standard Keep in mind that the dimensions the VIA 170 displays on screen are scalar numbers
111. nt is added Turning on the display can help users align each leg of the angle against the object in the field of view Turning off the display may be preferred when users need an unobstructed view of the video image APEX the vertex of an angle See also vertex AREA the size of a region or surface ASCII the American Standard Code for Information Interchange is one of the standard formats for representing characters BAUD RATE the rate at which data is transmitted over a serial interface The transmitting and receiving devices must be set at the same rate BLOOM markers or measuring lines which enlarge or blur on the monitor due to excessive brightness BNC COAXIAL CABLE a cable consisting of a tube of electrically conducting material surrounding a central Appendices 127 128 Appendices conductor held in place by insulators and that is used to transmit high frequency television signals BOX a square or rectangular marker which may be sized and placed on a VIA 170 overlay in any number or in combination with other markers CALIBRATION the process of determining the scalar magnitude of each row or column of pixels An operator places an object of known size in the field of view and enters the object s dimensions The VIA 170 calculates the corresponding constants or scale factors CCIR the specifications describing monochrome television electrical performance standards issued by the Internationa
112. numerical data especially data gathered from a series of samples In the VIA 170 statistics are calculated based on the measurements that users have entered into a Statistics Table Up to 500 values can be entered into the Statistics Table From these measurements or values the VIA 170 determines and displays the total count mean low value high value standard deviation and range TAG an alphabetical character generated by the VIA 170 which is used by the operator to label a cell or particle in the COUNT Mode TEXT BLOCK one line of text generated by the VIA 170 keyboard and displayed on the marker overlay A text block is positionable until it is anchored VERTEX the point at which the two sides of an angle intersect VIDEO SOURCE a device from which the VIA 170 receives a video image The VIA 170 incorporates the image with its graphic overlay capabilities then outputs the image and graphics to the corresponding monitor Examples of video sources include VHS recorders players macroscopic cameras and microscopic cameras VOLATILE MEMORY memory which is only retained when a continuous source of power is supplied to the unit X AXIS horizontal measurement Y AXIS vertical measurement Y C a video signal which is segregated into two picture component signals luminance or YIQ YIV Y signals and chrominance or color C signals Appendices 131 ABOUT BOECKELER INSTRUMENTS Inc 132 Appendic
113. oeckeler VIA 170 Measuring 55 USING THE MEASUREMENT KEYS Highlighted in Figure 4 2 are the VIA 170 keyboard function keys used while in the Measurement Mode These measurement keys include keys which select one of ten different Measurement Modes set up ten different measurement calibrations and select the line pattern of measuring lines The Measurement Mode is entered anytime the XY MEASURE F9 ANGLES CIRCLES F10 COUNT F11 or AREA CHORDS F12 keys are pressed or if a timer is activated CTRL F11 or F12 If users are in the Marker Mode pressing any of the four measurement keys will automatically exit marking and enter measuring Only the anchored markers in the current overlay will be displayed on screen along with the selected measuring lines or cursors Calibration and measuring of the video image can now take place Serving users in both the Measurement Mode and the Marker Mode are the action keys refer to Figure 4 2 In the Measurement Mode these keys perform actions with regard to the calibration and positioning of the measurement lines and cursors Action keys also move users through the ten stored marker overlays or assist in selecting one of ten calibration numbers Action keys also erase an anchored marker without exiting the Measurement Mode Users may also select to view the object being measured with or without the measuring lines at the touch of an action key A general measuring procedure is given on
114. of the data line will display LEG 1 to remind users they are measuring the first leg of the angle C Press ENTER The first point will be anchored and a second cross hairs cursor will appear ready for positioning If the Angle Display is on a line represent ing the first leg of the angle will continuously connect the first and second points D Turn on or off the Angle Display to aid in point placement by pressing SHOW HIDE ANGLE WHILE MEASURING ALT A 90 Measuring Boeckeler VIA 170 NOTE Turning on the Angle Display can help users align each leg of the angle against the object in the field of view Turning off the angle display may be preferred when users need an unobstructed view of the object being measured E Repeat steps A D to position the second third and etc points along the same leg of the angle being measured refer to Figure 4 18 After each point is anchored a cross hairs cursor will appear ready for positioning If the Angle Display is on the line representing the first leg of the angle will now transverse the anchored points NOTE Users may anchor up to 20 points per leg However in doing so each point will become increasingly less significant in determining the line segment For this reason we recommend not exceeding 4 5 points per leg 5 To measure the second leg of the angle A Press the SPACE BAR The display in the upper left of the screen will change from LEG 1 to LEG 2 Users can now pl
115. om of the screen Counterclockwise rotation moves the marker toward the top Rotating the RIGHT KNOB moves the marker horizontally Clockwise rotation moves the marker to the right side of the screen Counterclockwise rotation moves the marker toward the left side of the screen Once the marker is positioned operators may anchor and store the marker in the overlay by pressing the SELECT button Drawing can only take place with the optional light pen or mouse device Sizing markers with the knob controller can be accomplished after pressing the keyboard SIZE OBJECTS TEXT CTRL SHAPES F3 key The LEFT KNOB makes the object taller or shorter The RIGHT KNOB makes the object wider or narrower After objects are sized users can save the size by pressing the SELECT button on the knob controller Positioning of the sized object may now take place Positioning Measuring Lines or Cursors When measuring with the knob controller the knobs are used to position measuring lines and measuring cursors While measuring in the X Mode the left measuring line is controlled by the LEFT KNOB The right line is controlled by the RIGHT KNOB To move both of the lines in unison press the knob controller s COMPARE SWITCH to the ON position While measuring in the Y Mode the top measuring line is controlled by the LEFT KNOB The bottom measuring line is controlled by the RIGHT KNOB To move both of the lines in unison press the knob controllers COMPARE SWITCH to
116. ommand 126 reverse toggle 69 rgo 4 definition of 130 installation 26 interface 27 43 with sync on green 43 rs 170 See eia rs 170 rs 232 7 113 114 130 basic operation 113 connector pin out 117 menu 49 66 114 parameters 49 66 serial port 49 setup 10 114 test port 116 transmit key 10 57 65 See also rs 232 transmit key transmitting data 34 115 rulers creating custom 36 S scalar numbers 53 Boeckeler VIA 170 scale factor scales in marking 9 33 130 scales grids 9 scales grids key 9 36 39 security menu 47 48 49 65 67 71 74 select calibration key 66 84 87 90 96 102 menu 49 66 82 84 87 90 96 102 select button joystick controller 16 knob controller 14 select calibration key 10 35 57 send statistics summary option rs 232 menu 115 set color 8 brightness 9 43 45 set crossline style 39 set date time key 10 42 set menu colors 45 set rs 232 See rs 232c parameters shapes key 9 38 41 42 58 60 show date time key 9 42 show marker size coordinates key 35 37 39 41 show marker size coords key 9 show hide circle while measuring 68 96 show hide angle while measuring 68 90 size in fine increments 39 objects text 9 35 36 39 46 key 35 38 space bar on keyboard 11 42 43 68 72 91 107 108 109 114 115 stage micrometer 50 71 75 76 77 131 statistics clearing 69 definition 131 display 55 58 59 60 79 81 83 84 86 87 89 93 95 97 101 103 enteri
117. ong the perimeter of the object This will be the second endpoint of D1 NOTE Be sure to position the cursor so that its center lies just inside the line representing the object s perimeter Anchor the second cursor by pressing the pen tip into the screen on top of the cursor or by pressing ENTER on the keyboard controller The select buttons on optional controllers will achieve this same function The second cursor will be anchored and a straight line will connect the two endpoints The resulting measurement is displayed in the upper left of the screen refer to Figure 4 31 Measure the second chord or distance A Press the AREA CHORDS F12 key to activate the D2 option or press the pen tip into the D2 display to select it The preference arrow will be positioned after the D2 xxx xx display and a cross hairs cursor labelled with a 2 will appear on screen refer to Figure 4 32 B Position the cursor along the perimeter of the object This will be the first endpoint of D2 which can be any point to point measurement NOTE In this mode the VIA 170 will measure a distance from the center of the cursor C Anchor the first cursor by pressing the pen tip into the screen on top of the cursor or by pressing ENTER on the keyboard controller The select Measuring 105 A 001547 6787 MICRONS Di 013 45 1000X D2 086 77 CAL 7 Figure 4 32 Measuring the D2 Chord buttons on optional controllers will achieve this s
118. operly and installation is complete If these images are not prop erly displayed on the screen refer to the Troubleshooting Guide in Section Six Appendices Boeckeler VIA 170 VIA 170 VIDEO IMAGE MARKER MEASUREMENT SYSTEM A001753 V1 0 COPYRIGHT 1994 BOECKELER INSTRUMENTS INC KEYBOARD INTERFACE A001544 V1 0 Figure 2 2 VIA 170 Sample Copyright Message version numbers may vary Boeckeler VIA 170 Installation 25 To install the VIA 170 with RGB NTSC or PAL or Y C NTSC or PAL video sources and monitors refer to Figure 2 3 1 Make all connections before applying power 2 VIA RGB or VIA Y C interface placement The Boeckeler VIA RGB or Boeckeler VIA Y C video interfaces can be easily stacked on top of the VIA 170 base unit NOTE Installations are the same for VIA RGB P and VIA Y C P interfaces PAL versions of the video interfaces FUSE TO TO TO TO OPTIONAL HOLDER OPTIONAL OPTIONAL PRINTER OR VIA RGB OR VIA Y C 1 2 AMP LIGHT PEN MOUSE DEVICE COMPUTER INTERFACE RR AE esc ipod S E LIGHT PEN RS 232C RS 232C VIDEO CONTROL ee eee AS O of seve Jo We We leeeecccececcccccce mmm N 7 TO TOPOWER TOOPTIONAL TO OPTIONAL KEYBOARD JOYSTICK KNOB NOT USED IF VIA RGB CONTROLLER OR VIA Y C IS CONNECTED CAMERA MONITOR JOYSTICK CONTROLLER ENCODER e e yl lo Om IND Figure 2 3 Back Panel of VIA 170 for RGB Y C 3 VIA RGB or VIA Y C to video
119. or cleared except with a password All users will be able to change between overlays 1 10 All users will be able to anchor and save additional markers over the protected overlay However only the added markers can be erased or cleared from the overlay Users can change the color or alignment of the protected overlay If password holders wish to add pro tected markers to a protected overlay they may add the markers enter the Security Menu and re select Marker Overlay Protect ON then SAVE This will re save the protected overlay to include the added markers Marker Overlay Protect OFF allows all users to erase or clear all displayed markers To change the password or to enter a password for the first time select the CHANGE PASSWORD option Another menu appears which allows the user to enter the new password confirm it then SAVE or CANCEL the change NOTE Selecting DELETE as the first character deletes the password entirely Pressing ENTER after a character signifies this that the entry is complete it is possible to have a password with less than eight characters Once saved this new password must be used in order to enter the Security Menu again to protect new markers or un protect markers so that they can be erased NOTE If a password is not entered into the system an overlay can still be protected However users will not need a password to enter the Security Menu This method allows all users to make purposeful changes to protected ove
120. p of the previous leg s cursor Another cross hairs cursor will appear ready for positioning The line representing the second leg of the angle will also appear refer to Figure 4 21 4 Position the second point along the second leg of the angle being measured 5 Press ENTER The last point will of the second leg will be anchored The measurement of the angle created by the two lines is displayed in the upper left hand corner of the video screen To clear points 1 While in the ANGLES Mode press CLEAR POINTS CTRL ANGLES CIRCLES F10 All points will be cleared from the overlay and an active cursor will remain All anchored markers present in the overlay will remain unaffected by this clear To quit measuring in Angles Mode 1 On the keyboard controller press any function key The cross hairs will disappear and operators will have exited the Angle Measurement Mode 94 Measuring Boeckeler VIA 170 Boeckeler VIA 170 Circle Measurement To determine the radius or circumference of a circle with the VIA 170 operators will place three or more points on the video overlay thereby defining a circle The VIA 170 will automatically determine the radius and circumference of that circle even if the circle is only implied that is not entirely visible in the field of view Measurements reflect those of a perfect circle and are used only as approximations when measuring irregularly shaped circles or ellipses To mea
121. perators with a variety of graphics called markers which are placed over a video image to assist in analyzing or annotating the image The markers available include typed text and numbers 10 different pointers arrows cross hairs pointed cross hairs etc custom scales and grids a date time label sizeable circles boxes crosslines and straight line drawing Freehand drawing is also available with the addition of the optional LP 32 light pen Any combination of these markers may be placed on the screen Such a combination is called an overlay Figure 3 1 below depicts a possible combination of VIA 170 markers including typed text scales laid end to end to create a reticle a circle a box a handwritten approval and a date time label While power is on an overlay may be changed or erased When powered down the VIA 170 will automatically store up to ten different overlays Markers must first be saved or anchored on an overlay before they are stored in the VIA 170 memory To anchor a marker operators will press the ENTER key on the keyboard or press the tip of the optional light pen into the screen or press SELECT on the joystick or knob controller Until a marker is anchored in such a way the marker remains freely positionable and is referred to as an active marker Once a marker is anchored it cannot be repositioned or changed However an anchored marker can be erased TYPE VA0123 Figure 3 1 A combination of VIA 170 graphic
122. ppear if values being entered into the table are from a different Measure ment Mode than those already in the table e g XY measurements vs angle mea surements The warning message will offer users the opportunity to clear the table of current values and enter the new value or to proceed measuring without entering new values in the table SELECT CALIBRATION Scroll Lock Calibrate Calls up a series of Calibration Menus which assist users in changing the calibration of an overlay If calibrations are protected a message will appear briefly on screen Boeckeler VIA 170 D Help Pause Break Ctrl Boeckeler VIA 170 reminding users Calibrations are protected To change a calibration the password holder will need to enter the Security Menu turn Calibration Protect OFF SAVE this selection then exit the menu If there is no password any user can enter the Security Menu to make this selection Now calibrations can be changed Once in the Calibration menu select the desired marker overlay then press the CTRL key together with the SELECT CALIBRATION Scroll Lock key Follow instructions to position measuring lines and enter XY values Users are also given the opportunity to label the calibration number with units magnification ID or any other label informa tion NOTE Always calibrate using a stage micrometer or other object of known size and recheck calibrations For accurate line positioning and other
123. r and cell particle counter with the capabilities of a video marker and video typewriter Connected between a video source and monitor the VIA 170 generates an overlay on a live or stored video image On this overlay graphics and measuring lines may be positioned to annotate or measure various aspects of the image while it is displayed on the monitor and without altering that image The two primary functions of this overlay are for marking and measuring These two functions represent the two modes in the VIA 170 the Marker Mode and the Measure ment Mode When any of the marker keys are pressed operators automatically enter the Marker Mode Using these keys operators can position and store a simple or complex combination of graphics called markers on a single overlay Such markers are used to quickly annotate frame and label the video image for storage retrieval or still frame printout If desired the VIA 170 overlay may be turned off and the video camera image alone will be displayed on the monitor Up to ten different marker overlays may be stored with quick availability upon powering up In addition each overlay may be repositioned so that users can align markers with important features of the video image for comparison purposes or for quick go no go inspections A security feature allows the creation of an overlay of markers that cannot be erased unless a password is used All users can add delete and save markers on top of the protected
124. r no offset margin OR press the light pen at a desired distance from the cursor to create an offset margin Such calibration sets the offset margin between the point that the light pen touches the screen and the point that the drawing line or positionable markers will be offset from the pen tip When the pen tip is pressed on the screen the offset margin is automati cally stored and the light pen calibration mode exited Marking 41 09 12 98 10 00 am Show Date Time F7 Ctrl 42 Marking To calibrate position light pen on center of cross hairs and activate switch at tip of light pen by pressing pen into the screen Exit without changing calibration by pressing any key Figure 3 4 Light Pen Calibration Menu SHOW DATE TIME F7 Displays the current date and or time depending on which display mode was selected in the SET DATE TIME mode The DATE TIME icon may be positioned anywhere on the marker overlay To anchor or save the DATE TIME press ENTER The date and or time will be anchored on the screen displaying the current date time An active DATE TIME icon will also be displayed The display will update every 15 seconds For a timer that displays hundredths of a second refer to Section Four Video Measuring NOTE Only one DATE TIME label can be anchored on an overlay To reposi tion the DATE TIME label simply anchor the active DATE TIME icon again When the new label is anchored the former
125. r solid by pressing the CTRL XY MEASURE F9 key combination 5 If not already selected select the desired calibration number by pressing the SELECT CALIBRATION Scroll Lock key The Select Calibration Menu will appear on screen Follow instructions to select the desired CAL Operators will be automatically returned to the XY 84 Measuring Boeckeler VIA 170 Microns COUNT 004 MEAN X 066 28 MEAN Y 025 47 Figure 4 14 Positioning the X and Y Measurement Lines Measurement Mode and the selected CAL will be displayed in the upper right corner of the screen 5 To measure the object in view A Position the left measurement line along the left perimeter of the object to be measured Position the top measurement line along the top perimeter of the object to be measured refer to Figure 4 14 B Becertain to position the inside edges of the measuring lines against the object to be measured Refer to Positioning the Lines in the Calibration section of this manual C Press ENTER The right and bottom measuring lines are now active D Position the right measurement line along the right perimeter of the object to be measured Position the bottom measurement line along the bottom perimeter of the object to be measured refer to Figure 4 14 E Becertain to position the inside edges of the measuring lines against the object to be measured Refer to Positioning the Lines in the Calibration section of this man
126. re anchored For sizing instructions refer to instructions on page 39 10 Getting Started Boeckeler VIA 170 Boeckeler VIA 170 Positioning Measuring Lines or Cursors When operating the VIA 170 with the keyboard controller measuring lines and cursors may be moved anywhere on the screen by pressing the POSITIONING keys which direct right left up and down movement These keys are located to the right of the ENTER key For fine movement press the CTRL key along with one of the positioning keys While measuring the POSITIONING keys are used to position measuring lines or mea surement cursors Left and right keys move vertical lines left and right Up and down keys move horizontal lines up and down When measuring only the top and or left lines will be active To activate the right and bottom lines press ENTER When measuring angles pressing the SPACE BAR will begin definition of either the first or second leg of the angle Moving through Menus When users are presented with menus they may move through the options and entry blanks by pressing any of the appropriate POSITIONING keys In some cases users will be asked to toggle through options by pressing the SPACE BAR Pressing ENTER selects the displayed option Getting Started 11 OPTIONAL COMPONENTS LIGHT PEN CONTROLLER Figure 1 2 below depicts the LP 32 Light Pen Controller The controller functions as an auxiliary interface with the VIA 170 In general the pen is used l
127. rements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table A warning message will appear only if values being entered into the table are from a different Measurement Mode than those already in the table To quit measuring or comparing in XY Mode 1 If using the optional knob controller place the COMPARE switch in the OFF position 2 Onthe keyboard controller press any function key Measuring lines will disappear and operators will have exited the XY Measure ment Mode 86 Measuring Boeckeler VIA 170 Point to Point Measurement To measure in the P P Point to Point Mode 1 Onthe keyboard controller press the XY MEASURE F9 key 2 f needed sequence through each of the four Measurement Modes until two cross hairs cursors are displayed over the video image refer to Figure 4 15 This is the P P Point to Point Measurement Mode At this point only one cross hairs cursor is positionable or active MICRONS Figure 4 15 P P Measurement Mode ES If measurements will be used in statistical calculations press MEASURE W STATS ALT XY MEAURE F9 The Statistics Display with the current COUNT and MEAN will appear in the lower left corner of the screen along with the cross hairs cursors If the the current MEAN is INVALID this means that there are measurements in the Statistics Table that are incompatible with P P Mode measurements
128. rent MEAN is INVALID this means that there are measurements in the Statistics Table that are incompatible with X Mode measurements To clear the Statistics Table press CLEAR STATS ALT D 4 Select the desired line pattern dashed or solid by pressing the CTRL XY MEASURE F9 key combination 5 If not already selected select the desired calibration number by pressing the SELECT CALIBRATION Scroll Lock key The Select Calibration 4 Menu will appear on screen Follow instructions to select the desired CAL Operators will be automatically returned to the X Measurement Mode and the selected CAL will be displayed in the upper right corner of the screen Boeckeler VIA 170 Measuring 79 6 To measure the object in view A Align the left measurement line along the left perimeter of the object to be measured Align the right measurement line along the right perimeter of the object refer to Figure 4 10 B Becertain to position the inside edges of the measuring lines against the object to be measured Refer to Positioning the Lines in the Calibra tion section of this manual The distance between the two vertical measurement lines will continuously be displayed in the upper left hand corner of the video screen MICRONS Figure 4 10 Positioning the X Axis Measuring Lines against Sample Image To perform comparison measurements in X Mode 1 Position each measuring line at a fixed distance apart 2 If operators
129. ressing this key will cycle through the three different colors or gray levels that have been assigned by the user in the Set Color Menu discussed below When the active marker displays the desired color the marker can be positioned and anchored in that color NOTE If the color of the graphics does not change from black the brightness level is too low and must be increased before selecting the color Brightness is increased in the Set Color Palette Menu Consult the installation section of this manual to identify video interfaces which can create color markers for RGB and Y C systems An active text label and active date time label will appear in one of 9 different color combinations since the background for the text also changes For text and date time labels users can reverse the sequence of choices by pressing SHIFT CHANGE COLOR F8 NOTE For RGB systems with sync on green and no VIA RGB interface color selections will be in hues of green and pink NOTE On some Y C systems with a VIA Y C interface and certain cameras or monitors there can be a slight blurring of vertical lines To solve this problem users can change the color of the VIA 170 lines to white gray or black CTRL CHANGE COLOR F8 Set Color amp Brightness This key combination calls up two menus that assist users in 1 defining a three color palette and 2 designing menus using these three colors By designing a palette and menus the VIA 170 markers and
130. rker or cursor up or down one increment at a time until the marker is anchored by pressing ENTER For fine positioning press CTRL the UP or DOWN key In ALIGN Mode positions all markers in unison up or down POSITIONING keys are also used to size objects vertically These objects include horizontal grids vertical scales box grids boxes and circles Once in the sizing mode CTRL SHAPES F3 press the UP POSITIONING key to make the object taller Press the DOWN POSITIONING key to make the object shorter To save the size and exit sizing press ENTER The sized object may now be positioned anywhere on the screen In menus positions the cursor up or down among options when such options are available Moves page up or down in help messages LEFT RIGHT POSITIONING KEYS Positions the active marker or cursor left or right one increment at a time until the marker is anchored by pressing ENTER For fine positioning press CTRL the LEFT or RIGHT key In ALIGN Mode positions all markers in unison left or right This key is also used to size objects horizontally These objects include vertical grids horizontal scales box grids boxes and circles Once in the sizing mode CTRL SHAPES F3 press the LEFT POSITIONING key to make the shape wider Press the RIGHT POSITIONING key to make the shape narrower To save the size and exit sizing press ENTER The sized object may now be positioned anywhere on the screen In menus positions the c
131. rlays but avoids accidental era sures or changes For Calibration Protection refer to page 65 RS 232 TRANSMIT Print Screen Transmits the active marker coordinates and or active marker size through an RS 232 serial port to a computer or ASCII terminal The coordinates and or marker size must be displayed on screen in order to print To select the desired display before printing press the SHOW MARKER SIZE COORDINATES key combination CTRL SCALES GRIDS F2 and make a display selection In ALIGN Mode offset coordinates in pixels and offset units in calibrated units will be transmitted if they are displayed CTRL RS 232 TRANSMIT Set RS 232 Displays the RS 232 Menu in which users set RS 232 parameters including baud rate 300 600 1200 2400 4800 9600 and a terminator carriage return return only or return plus line feed The default settings are a baud rate of 9600 and a carriage return line feed After entering the choices select ENTER to save the changes or select CANCEL to exit without saving changes Users will be returned to the overlay and mode they were in before setting print parameters To program a computer to accept the downloaded information refer to Section Five Communication SELECT CALIBRATION Scroll Lock Calls up the Select Calibration Menu in which operators select which preset calibra tion to use before sizing markers or before aligning markers in the ALIGN Mode Users will have a choice of 10 s
132. rt Command The VIA 170 video image marker measurement system now features a warm restarting command A warm start initiated by pressing CTRL ALT DELETE restarts the VIA 170 while saving all calibrations anchored markers passwords and menu settings A warm start may be desired when new controllers have been installed so that the VIA 170 can detect the new devices on power up For additional advice concerning restarts call for technical assistance at 520 745 0001 or toll free in the U S at 800 552 2262 126 Appendices Boeckeler VIA 170 GLOSSARY Boeckeler VIA 170 ACTION KEYS keyboard function keys which allow users to perform actions or begin a given process These keys are used with marker keys and measurement keys ACTIVE MARKER an unanchored graphic or text block which is positionable on the overlay ANCHORED MARKER the opposite of an active marker An anchored marker has been placed in a fixed position on the overlay and cannot be moved again However anchored markers may be erased or cleared ANGLE the shape formed by two straight lines or two planes meeting at a common point or edge The unit of measure between the two sides of an angle is a degree each degree being one 360th part of the circumference of a circle ANGLE DISPLAY the feature in the VIA 170 which allows users to display a graphic of an angle while users place points to define an angle This display will change slightly as each poi
133. rt the user prefers When this program is run on the computer users will be prompted to press the RS 232 TRANSMIT Print Screen key on the VIA 170 If the VIA 170 RS 232 connec tion is functioning properly the measurement reading on the VIA 170 will be displayed on the computer monitor If there are any questions users are welcome to call the Service Department at Boeckeler Instruments Inc at 800 552 2262 or 520 573 7100 116 Communication Boeckeler VIA 170 Boeckeler VIA 170 RS 232 Connector Pin Out The RS 232 connector is on the rear panel of the VIA 170 and is a standard DB 9 If operators are connecting the RS 232 connector to a printer or computer they will need a cable which has nine pins on one end and a connector on the other end compatible with the printer or computer Such cables are available at most electronic stores or from your Boeckeler dealer The following pin out is standard except for pin 9 which is unused in the EIA Standard NOTE When establishing an RS 232 communications link the following table should be utilized The most commonly asked pin out question is regarding pin 7 Table 5 2 RS 232 Connector Pin Out PIN 4 NAME DESCRIPTION 1 DCD Data Carrier Detect The VIA 170 sets this control line to an active high 2 RXD Receive Data The VIA 170 transmits data on this pin 5 GND Signal Ground This pin must be connected to signal ground at the remote dev ce connector
134. s Boeckeler VIA 170 Marking 33 USING THE MARKER KEYS Figure 3 2 illustrates the VIA 170 keyboard and the various function keys The key board is basically divided into three types of functions keys marker keys measure ment keys and action keys The marker keys include graphics text and number keys All marker keys are used to annotate a video image in a variety of combinations for a variety of labelling functions before or after measuring The Marker Mode is entered any time one of the marker keys is pressed If users are in the Measurement Mode e g having pressed the XY MEASURE F9 key press ing a marker key will automatically exit measuring and enter marking The measuring lines will disappear and the selected active marker or cursor will appear on screen Marking of the video image can now take place Serving users in both the Marker Mode and the Measurement Mode are the action keys refer to Figure 3 2 In the Marker Mode these keys perform actions with regard to the positioning anchoring and erasing of the markers Action keys also allow users to move through the different marker overlays and menus or to begin RS 232 trans mission A description of marking functions begins on the next page Following the description of marking keys is a description of action keys and how they affect the marking functions MARKER KEYS Graphics MEASUREMENT KEYS EIA er nm CT NET ARE FEA AA A A E
135. s for a total CROSS HAIRS a symbol consisting of two perpendicular lines In the VIA 170 there is a cross hairs pointer used in marking In measuring a cross hairs cursor is used to designate points of measurement Boeckeler VIA 170 Boeckeler VIA 170 CROSSLINE two perpendicular lines that intersect each other at their centers Similar to cross hairs but larger In the VIA 170 crosslines extend to the edges of the screen CURSOR in the VIA 170 a symbol used to designate the menu options or a point of measure ment such as used in defining endpoints of a chord A cursor is also used to position straight and drawn lines DRAW the capability to freehand draw or write on a VIA 170 marker overlay Drawn lines may be combined with other markers on a single overlay EIA RS 170 the specifications describing monochrome electrical performance standards issued by the Electronic Industries Association EIA also referred to as RS 170 Recommended Standard 170 The EIA standard is used in North and South America Japan and most of Asia FIELD OF VIEW the live video image which can be observed within the boundaries of the video moni tor GRAY LEVEL the degree of white gray or black used to display the VIA 170 measuring lines and graphics on the video screen When the VIA 170 is used with RGB or Y C cameras and monitors and with VIA RGB or VIA Y C interfaces gray level controls become color selection controls u
136. sed shape drawing or marker D1 the first distance defined by placing two end points D2 the second distance defined by placing two end points When the desired option is selected a preference arrow will appear immediately right of the selected measurement display To measure areas or chords in the Measure w Statistics Mode enter the AREA CHORDS Measurement Mode select the desired option A D1 or D2 then press MEASURE W STATISTICS ALT XY Measure F9 The Statistics Display will appear on screen along with the measurement cursors Detailed AREA CHORDS Measurement procedures begin on page 98 CTRL AREA CHORDS F12 Timer w Markers Displays timer while users are in the Marker Mode Users cannot change a marker overlay while the timer is running A brief description of this mode is given below 00 00 00 0 the elapsed time is continuously displayed from the moment the timer is activated to the moment it is stopped Detailed TIMER w MARKERS procedures begin on page 105 NOTE The Measure ment w Statistics Mode is not active in TIMER Mode Boeckeler VIA 170 USING THE ACTION KEYS IN MEASURING Boeckeler VIA 170 UP DOWN POSITIONING KEYS Positions a measuring line or cursor up or down one increment at a time For fine positioning press the CTRL key together with the desired POSITIONING key Only one vertical measuring line and one horizontal line will be active or positionable at a time After one line or
137. sed to create brightly colored markers and measuring lines GRID a marker consisting of several evenly spaced parallel lines Vertical grids consist of vertical lines horizontal grids consist of horizontal lines and box grids consist of both horizontal and vertical lines LINES MARKING graphic lines which are superimposed on a video image and positioned by operators to mark or annotate the object in the field of view Unlike measuring lines marking lines are anchored stored and erased Once anchored marking lines may not be reposi tioned although they may be erased or cleared from the overlay LINES MEASURING graphic lines which are superimposed on a video image and positioned by operators to measure the object in the field of view Measuring lines are not erasable nor can they be anchored like marking lines Measuring lines are always positionable MARKER graphic symbols pointers scales grids boxes circles date time labels freehand drawings and text which are superimposed on a video image and positioned by operators to mark or annotate the object in the field of view Once anchored markers may not be repositioned although they may be erased or cleared from the overlay NONVOLATILE MEMORY memory which retains information whether or not power is being supplied to the unit Appendices 129 130 Appendices NTSC the North American National Television System Committee 525 line color TV stan dard The
138. site input ensure that the 37 pin monitor scrolls ribbon cable between the VIA 170 and Y C or RGB interface is disconnected Light pen cursor or 1 The image is too dark for the light pen to detect drawing line will not and alter the cursor line position Increase the follow the light pen brightness of the monitor over the darker area of an image 122 Appendices Boeckeler VIA 170 WARNING MESSAGES The VIA 170 detects certain potential misjudgments users may have made in calibrat ing and or measuring At such detections the VIA 170 displays a warning message to aid operators in correcting potential problems Operators may choose to ignore these messages and carry on with measurements since not all applications require the best resolution or accuracy A summary of the warning messages follows in Table 6 2 Boeckeler VIA 170 Table 6 2 Warning Messages X OVERFLOW or Y OVERFLOW Cause This warning arises when the magni tude of the measurement value be comes larger than 99999 If during calibration the user enters a large value with the measuring lines positioned too closely together then when the lines are moved apart the measurement value becomes greater than 99999 Solution Recalibrate If necessary change magnification so that the stage mi crometer fills at least 8096 of the screen Also ensure that the space between the measuring lines represents at least 8096 of
139. sor will have appeared ready to begin a new measurement or add additional points to the current measurement If the latter the measurement will change slightly as each new point is added NOTE While users can define an arc or circle using a minimum of three points for best results we recommend placing more points preferably 8 or 16 since these can be placed equidistant in a triangular pattern Whatever the number of points used keep in mind the triangular pattern while placing points The pattern is much like cutting a pie first cut it in half with points 1 and 2 then in quarters with points 3 and 4 then in eighths with points 5 6 7 and 8 and so on To enter the displayed radius and circumference into the Statistics Table 1 From the Measure w Statistics Mode press ENTER STATISTIC Insert The Statistics Display will now read one COUNT higher and the MEAN will incorporate the new value To view the entire Statistics Table or to edit it press STATISTICS TABLE ALT S WARNING Users will be able to enter measurements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table A warning message will appear only if values being entered into the table are from a different Measurement Mode than those already in the table To clear points 1 While in the CIRCLES Mode press CLEAR POINTS CTRL ANGLES CIRCLES F10 All points will be cleared from
140. source connections A RGB systems Connect the red green blue and sync lines from the video source to the corresponding red green blue and sync input connections on the back of the Boeckeler VIA RGB interface unit refer to Figure 2 4 Connect the video output end of the cable to the corresponding connection on the video source B Y C systems Connect the Y C cable from the video source to the corresponding input connections in the VIA Y C interface unit refer to Figure 2 4 4 VIA RGB or VIA Y C to monitor connections A RGB systems Connect the red green blue and sync lines of the monitor cable to the corresponding output connection on the VIA RGB interface Connect the monitor end of the cable to the corresponding monitor input connec tions B Y C systems Connect the Y C monitor cable to the corresponding output connec tion of the Boeckeler Y C interface unit Connect the monitor end of the cable to the corresponding monitor input connections 26 Installation Boeckeler VIA 170 RED GREEN BLUE amp RIBBON CABLE SYNC LINE CONNECTIONS CONNECTION FOR FOR VIDEO amp MONITOR VIA 170 BASE UNIT 9 QQ OG QOOOQO aD B eine VIDEO CONTROL OUT UT VIDEO CONTROL CLIIIIIIIIIIILILIIID XII com NOIIIIIIIIIIIIILIIIE NTSC O _ YT Y C CABLE CONNECTIONS FOR NOT USED FOR RIBBON CABLE VIDEO amp MONITOR Y C CONNECTION CONNECTION FOR VIA 170 BASE UNIT Figure 2 4 RGB Interf
141. splayed on screen 2 Vertical Y Operators move two horizontal lines to the top and bottom edge of an object The measurement is continuously displayed on screen 3 2 dimensional X Y Operators position two horizontal and two vertical lines at the edges of an object X and Y measurements are continuously displayed on screen Boeckeler VIA 170 Boeckeler VIA 170 4 Point to Point P P Operators place two cross hairs at points to be measured on the object The distance between the two points is continuously displayed on the screen 5 Angles Operators place two or more points to define each leg of an angle The degree of the angle formed by the legs is displayed on the screen whether or not the vertex of the angle is apparent Users can turn on or off a graphic display of the angle as it is being measured 6 Circles Operators place three or more points along the perimeter of a circular image The radius and circumference of the circle are displayed on the screen even when only part of the circle is in the field of view Users can turn on or off a graphic display of the circle as it is being measured 7 Count Operators position a tag and drop it over each cell or particle to be counted Hundreds of particles may be counted and each may be tagged with one of 10 letters A J which prevents accidental recounting and allows operators to count up to 10 different types of particles visible in a field of view 8 Area Operators fill
142. sure in the CIRCLE MODE 1 On the keyboard controller press the ANGLES CIRCLES F10 key 2 Sequence through the two Measurement Modes until the R Cz display is shown in the upper left corner of the screen refer to Figure 4 22 This is the CIRCLE Measurement Mode MICRONS Figure 4 22 CIRCLE Measurement Mode circle represents image being measured 3 If measurements will be used in statistical calculations press MEASURE W STATS ALT XY MEASURE F9 The Statistics Display with the current COUNT and MEAN will appear in the lower left corner of the screen along with the cross hairs cursor If the current MEAN is INVALID this means that there are measurements in the Statistics Table that are incompatible with Circle Mode measurements To clear the Statistics Table press CLEAR STATS ALT D Measuring 95 4 If not already selected select the desired calibration number by pressing the SELECT CALIBRATION Scroll Lock key The Select Calibration Menu will appear on screen Follow instructions to select the desired CAL Operators will be automatically returned to the CIRCLE Measurement Mode and the selected CAL will be displayed in the upper right corner of the screen 5 To measure the object in view A Position the first cross hairs cursor along the perimeter of the circular image being measured Press ENTER The first point will be anchored and a second cross hairs cursor will ap pear ready for
143. sure in the Y Mode 1 On the keyboard controller press the XY MEASURE F9 key 2 If needed sequence through each of the four Measurement Modes until two horizontal lines are displayed over the video image refer to Figure 4 10 This is the Y Measurement Mode 3 If measurements will be used in statistical calculations press MEASURE W STATS ALT XY MEASURE F9 The Statistics Display with the current COUNT and MEAN will appear in the lower left corner of the screen along with the measuring lines If the current MEAN is INVALID this means that there are measurements in the Statistics Table that are incompatible with Y Mode measurements To clear the Statistics Table press CLEAR STATS ALT D 4 Select the desired line pattern dashed or solid by pressing the CTRL XY MEASURE F9 key combination Measuring 81 82 Measuring 4 MICRONS Figure 4 11 Y Measurement Mode If not already selected select the desired calibration number by pressing the SELECT CALIBRATION Scroll Lock key The Select Calibration Menu will appear on screen Follow instructions to select the desired CAL Operators will be automatically returned to the Y Measurement Mode and the selected CAL will be displayed in the upper right corner of the screen 5 To measure the object ine view A Align the top measurement line along the top perimeter of the object to be measured Align the bottom measurement line along the bot
144. t one inch calibration instructions follow Pressing the pen into the screen will anchor an active graphic Dragging the pen tip across the screen also serves to quickly size a marker if users have activated the sizing mode by pressing the SIZE OBJECTS TEXT CTRL SHAPES F3 If precise sizing is desired operators should use the keyboard POSITIONING keys instead of the light pen Drawing is accomplished similarly to positioning markers except instead of dragging the pen tip across the screen users will press the Tip Button into the screen and draw Again the drawing line will be offset from the pen tip in accordance to how the pen was calibrated To Calibrate the Light Pen 1 Press the CTRL key together with the DRAW F6 key until the light pen calibration Screen appears displaying a calibration menu A cross hairs cursor will appear on the screen along with menu instructions 2 Press any function key to exit calibration at this point without making changes 3 If the user wishes to continue calibration press the Tip Button directly on the cursor for no offset margin Or press the Tip Button at a desired distance from the cursor to create an offset margin The offset margin is now automatically stored and the offset mode has been exited Positioning Measuring Lines or Cursors When operating the VIA 170 with the light pen controller the measuring lines or cursors may be moved anywhere on the screen by lightly dragging the li
145. t only clear the screen of all markers but will also clear the measurement cursors so that operators may quickly begin a new calculation Protected markers will not be cleared In the COUNT Mode pressing CLEAR End gives users the option to clear all the tags and set all counts to zero or to clear only the tags while retaining the current counts A warning message will appear on screen to avoid an unintentional erase To undelete a screen of recently cleared markers in all Measurement Modes except COUNT press CTRL OVERLAY Home In COUNT this key combination undeletes the most recently erased tag only CTRL CLEAR End Clear Offset Created in Align Mode Clears the offset alignment of markers in the current overlay even while users are in a Measurement Mode A warning message will appear on screen to avoid an uninten tional clear Offset coordinates will return to the default position X 0 Y 0 A protected overlay can be cleared of its alignment Protection ensures that certain markers cannot be erased or cleared NEXT OVERLAY Page Down Advances users to the next overlay and any markers stored in that overlay along with the current measuring lines or cursors measuring points in ANGLES CIRCLES Mode will be erased Pressing this key repeatedly will continue to display the next overlay in ascending order along with the current measuring lines The number of each new overlay will appear briefly at the bottom right corner of
146. t pen In general the knobs are used to quickly size and move the markers or quickly position measuring lines or measurement cursors on the VIA 170 overlay Broad definitions of the five keys on the knob controller are listed below Refer to this section if needed when general instructions later in the manual ask users to position measuring lines or size and anchor a marker Figure 1 3 KS 30 Knob Controller Knob Controller Key Definitions AXIS SELECT DATA COMPARE TRANSMIT a switch which specifies the axis or point which the knobs currently control a button which anchors the active marker in its current position zeroes out path length distance display while drawing with light pen or mouse In Measuring w Statistics Mode enters displayed measurement into the Statistics Table a switch which fixes the distance between the measuring lines so that the lines may be moved in unison when in X Y or XY Mode inactive in P P Mode ANGLES CIRCLES Mode COUNT Mode AREA CHORDS Mode and TIMER a button which downloads current measurement readings marker coordinates and statistics through the RS 232C serial port Such data must be displayed before being transmitted Positioning and Sizing Markers When operating the VIA 170 with the knob controller the active markers may be positioned vertically by rotating the LEFT KNOB Clockwise rotation moves the marker toward the 14 Getting Started Boeckeler VIA 170 bott
147. t wraps around to the left The maximum possible number of decimal places is five NOTE In order to achieve the highest possible resolution without overflowing the total number of digits possible in a subsequent measurement it is recom mended that the calibration number be placed as a whole number as far as possible to the left of the decimal point For example if the X measurement of the micrometer stage is 001 inches 1 millimeter operators would enter 1 0000 rather than 00100 That way when a measurement reaches four times that of the stage a reading of 4 0000 can be easily displayed Likewise when a measurement is made which is many times smaller than the stage operators will receive very resolute readings down to one ten thousandths of the stage measurement 6 Onthe keyboard controller press any number key s to enter or change the value of the X horizontal dimension 72 Measuring Boeckeler VIA 170 Operators may press the backspace key to overwrite a previously entered digit To bypass any entry which operators do not wish to change press the ENTER key until the cursor cycles through to the desired entry line Once values for the last digit in the X axis are correct the cursor will automati cally move to the next line ready for vertical Y axis dimension entry 7 Repeat step 6 to change the values for the Y vertical dimension until all the digits reflect values corresponding to the known horizontal and vertic
148. tch to a new marker overlay or erase drawn lines by using the CLEAR or UNDO key As drawn lines take a separate memory than markers erasing markers will not free memory space for drawn lines MARKERS PROTECTED or CALIBRATIONS PROTECTED Cause Markers Protected Certain markers on each overlay have been protected by a password holder This means users cannot erase or clear them although they can save align delete and clear markers added to the protected overlay They can even align and change the color of protected markers This protec tion ensures that an accidental erasure of certain markers does not take place Cause Calibrations Protected All calibra tions have been protected by a pass word holder This means that once calibrations have been set users are not able to change them Solution Password holder can change markers With the password the user can enter the Security Menu unprotect markers exit the menu make all deletions and additions needed in the marker overlay then enter the Security Menu and protect the markers as changed Solution Password holder can change calibra tions With the password the user can enter the Security Menu unprotect calibrations exit the menu make new calibrations in the Calibration Menu then enter the Security Menu and protect the calibrations as changed 124 Appendices Boeckeler VIA 170 RELEASE NOTES FOR VIA 170 WITH
149. ter turning on or off AUTOINTERCEPT a brief mes sage will be displayed as to whether the feature has been turned on or off Boeckeler VIA 170 Section Four Video Measuring OVERVIEW Boeckeler VIA 170 It is important to understand some of the basic concepts about how the Measurement Mode of the VIA 170 works in order to calibrate and use video measuring effectively All measurements performed with the VIA 170 are scalar numbers which are indepen dent of units In other words a measurement displayed as X z 1 000 could represent one inch one millimeter or one micron The decimal point functions merely as a place holder and has no mathematical significance The unit of measure is determined by the device used for calibration To display a measurement the VIA 170 performs several internal procedures In simple terms the VIA 170 superimposes an invisible grid over the video image displayed on the monitor This grid using NTSC standards is 1024 elements wide X direction by 482 elements high Y direction For PAL and CCIR standards the grid is 1024 by 512 An individual element in the grid is called a pixel which stands for picture element The vertical video measuring lines are four pixels wide and the horizontal lines are two pixels wide Any one of the four measuring lines may be moved one pixel at a time When an operator positions the measuring lines against the edges of an object the VIA 170 counts the number of p
150. the P P Measurement Mode 88 Measuring Boeckeler VIA 170 Boeckeler VIA 170 To enter the displayed distance into the Statistics Table 1 From the Measure w Statistics Mode press ENTER STATISTIC Insert The Statistics Display will now read one COUNT higher and the MEAN will incorporate the new value To view the entire Statistics Table or to edit it press STATISTICS TABLE ALT S WARNING Users will be able to enter measurements that were made using different calibrations Be sure that measurements entered are compatible with those already in the table A warning message will appear only if values being entered into the table are from a different Measurement Mode than those already in the table To quit measuring in P P Mode 1 On the keyboard controller press any function key The cross hairs will disappear and operators will have exited the P P Measure ment Mode Angle Measurement To determine an angle with the VIA 170 operators will place four or more points on the video overlay thereby defining two lines One pair of points will define one line seg ment the first leg and a second pair of points will define a second line segment the second leg The VIA 170 will automatically determine the angle of the vertex formed by these two lines even if the vertex is only implied that is not visible within the field of view To measure in the ANGLE Mode 1 On the keyboard controller press the ANGLES CI
151. the next page followed by a description of each measurement key function Step by step procedures in calibrating and measuring a video image follow these function key descriptions MARKER KEYS Graphics MEASUREMENT KEYS Ll n RS LEARRA e ESAS EXAMEN SELL EAS ESA o IY AN 2 DNO Y I ET SY DESI ANSEL EI I SEI OE EE EA SER MARKER KEYS Text Numbers ACTION KEYS Figure 4 2 VIA 170 Keyboard Controller 56 Measuring Boeckeler VIA 170 General Measuring Procedures The following is a general procedure for measuring Specific procedures for calibrating and for measuring in each Measurement Mode are discussed in the following pages To measure an object in the field of view 1 Calibrate the VIA 170 and check the calibration by measuring an object of known size before critical measurements are begun Refer to the calibration procedures beginning on page 70 NOTE Operators will assign the calibration to one of ten different calibration numbers CAL 0 9 which are stored in the VIA 170 Each CAL will be accompanied by labels to remind users of units used magnification etc 2 Measure the object in the field of view A Select the desired marker overlay by pressing the PREV OVERLAY Page Up key or NEXT OVERLAY Page Down The measuring lines or cursors will remain on screen with the selected marker overlay B Press the XY MEASURE F9 key ANGLES CIRCLES F10 key COUNT
152. the overlay and an active cursor will remain All anchored markers present in the overlay will remain unaffected by this clear To quit measuring in Circles Mode 1 On the keyboard controller press any function key The cross hairs will disappear and operators will have exited Circle Measure ment Mode Boeckeler VIA 170 Measuring 97 Count Measurement To count cells particles in the COUNT Mode 1 On the keyboard controller press the COUNT F1 1 key This is the COUNT Measurement Mode refer to Figure 4 24 The letter A and measurement display will appear in the upper left of the screen This display represents the total count of all specimens marked with the tag A A positionable counting cursor IJ is also present in the overlay along with any anchored markers 2 Select a different marker overlay 1 10 if desired by pressing the PREV OVERLAY Page Up key or the NEXT OVERLAY Page Down key NOTE Sized grids scales circles or boxes created in the Marker Mode can assist in counting by providing users with a reference for distance area etc Figure 4 24 Count Mode 3 To count the objects in view A Position the counting cursor over the object to be counted B Press ENTER on the keyboard controller or press the pen tip into the screen on top of the cursor with the optional light pen Select buttons on other optional controllers will achieve this same function The cursor will anchor a tag
153. the paper some ad vance it automatically Set terminator to suit specific needs 5 Press ENTER The STATISTICS option will be highlighted ready for selection 114 Communication Boeckeler VIA 170 Boeckeler VIA 170 6 To change how statistics will be ouput press the SPACE BAR to toggle through the available selections until the desired option is displayed NOTE SEND STATISTICS SUMMARY ONLY means the current count mean standard deviation low value high value and range will be transmitted along with the displayed measurement SEND ALL STATISTICS means that the summary the displayed measurement and all values that are in the Statistics Table will be transmitted up to 500 values Values that have been deleted and display a DEL in the table will be printed with a DEL following their transmis sion Users must be in a Measure w Statistics Mode before transmitting statistics 7 Select SAVE or CANCEL to save or cancel displayed settings The RS 232 Setup Menu will automatically disappear and users will return to their current Measurement or Marker Overlay Transmitting Data When users are operating the VIA 170 they may transmit the measurements displayed in the upper left hand corner of the measurement screen Also while in the Marker Mode operators may transmit the marker coordinates and or marker size if displayed in the lower left hand corner of the marker overlay While in the Align Mode the Offset Display can be tr
154. tom perimeter of the object refer to Figure 4 11 B Be certain to position the inside edges of the measuring lines against the object to be measured Refer to Positioning the Lines in the Calibration section of this manual The distance between the two horizontal measurement lines will continuously be displayed in the upper left hand corner of the video screen To perform comparison measurements in Y Mode 1 2 Position each measuring line at a fixed distance apart If operators have an optional knob controller set the COMPARE switch to the ON position Rotate the left knob to move the measuring lines in unison If operators have an optional joystick controller tilt the joystick forward or Boeckeler VIA 170 MICRONS Figure 4 12 Positioning the Y axis Measurement Lines backward to move the measuring lines in unison By positioning the pair of measuring lines at different locations on the screen operators may quickly determine whether or not objects in the field of view meet size specifications To enter the displayed Y value into the Statistics Table 1 From the Measure w Statistics Mode press ENTER STATISTIC Insert The Statistics Display will now read one COUNT higher and the MEAN will incorporate the new value To view the entire Statistics Table or to edit it press STATISTICS TABLE ALT S WARNING Users will be able to enter measurements that were made using different calibrations Be sure
155. top the TIMER Note the time elapsed NOTE The TIMER display will show TIMER READY D Press SPACE BAR a fourth time to restart the TIMER from zero NOTE Steps B through D can be repeated as often as desired NOTE New markers cannot be anchored on an overlay while the timer is running 108 Measuring Boeckeler VIA 170 To exit the TIMER Mode 1 At TIMER READY status press any function key except the SPACE BAR The TIMER display will offer the option to ready the TIMER again or to exit the TIMER 2 Again press any function key except the SPACE BAR The TIMER display will disappear Users will have exited the TIMER Mode and they will have entered the Marker Mode or another Measurement Mode depending on which function key was pressed Boeckeler VIA 170 Measuring 109 Section Five Communication USE OF THE RS 232 PORT BASIC OPERATION Output is provided for most printers terminals or computers that will accept data in ASCII format and meet RS 232 electrical specifications Before operators use the RS 232 data output they must verify the parameters for their specific printer or computer The VIA 170 RS 232 parameters are factory set at 9600 baud 8 data bits 1 stop bit no parity CR data block terminator and output for Statis tics Summary Only All but two of these parameters are permanently fixed Operators may select baud rates how statistics are output and whether a data block termina
156. tor has a carriage return with a line feed or a carriage return without a line feed To change the factory setting for these three parameters follow the instructions on the next page Also before computers can use the RS 232 data output they must be programmed to receive the information Program instructions are on page 116 Boeckeler VIA 170 Communication 113 Set Up Before using the RS 232 data output capability operators must verify and or set the parameters through the RS 232 Set Up Menu E To set up RS 232 communications 1 Press CTRL RS 232 TRANSMIT Print Screen The RS 232 Setup Menu will appear on the video screen see Figure 5 1 The BAUD RATE option will highlighted factory setting is 9600 baud 2 To change the baud rate press the SPACE BAR to toggle through the available baud rates until the desired rate is displayed on screen RS232 SETUP BAUD RATE 9600 TERMINATOR Carriage Return Line Feed STATISTICS Send Statistics Summary Only Press the space bar to toggle through possible selections Figure 5 1 RS 232 Setup Menu 3 Press ENTER The TERMINATOR option will be highlighted ready for selection 4 To change the terminator press the SPACE BAR to toggle through the available selections until the desired terminator return and line feed is displayed NOTE The factory setting is a Carriage Return Line Feed Some printers require a line feed after the carriage return to advance
157. trol on the video monitor for proper adjustment 2 Check that the Dual Voltage Switch 110V 220V located on the back panel of the VIA 170 is properly set Boeckeler VIA 170 continued on next page Appendices 121 Table 6 1 Troubleshooting Guide continued Symptoms Possible Solutions Monitor lights up but 1 Check that the video source and VIA 170 are does not display a each plugged into a live outlet picture 2 Check that the video source and VIA 170 are both switched on 3 Check that the coaxial cables are connected to the proper BNC connectors on the video source the VIA 170 and the monitor Some cameras and monitors have multiple output and input connec tors Consult your video manuals for correct connection information 4 If the video source or monitor has a switch for 75 OHM or high Z ensure this switch is in the 75 OHM position 5 Onthe back panel of the VIA 170 remove the plastic cover above the power supply connector and check for a blown fuse 6 Bypass the VIA 170 by connecting the monitor directly to the video source If the video image still does not appear have the video source and monitor checked The VIA 170 graphics 1 Adjust system parameters on the video output bloom device monitor or camera if in use such as contrast gain brightness color light and intensity 2 Adjust the color or gray level of the VIA 170 Video image on 1 lf using compo
158. two cross hairs cursors the left cursor is active Press ENTER and the right cursor is active LEFT RIGHT POSITION ING keys move each cursor horizontally ANGLE Pressing the LEFT RIGHT POSITIONING keys move each active cursor horizontally on the screen CIRCLE Pressing the LEFT RIGHT POSITIONING keys move each active cursor horizontally on the screen COUNT Pressing the LEFT RIGHT POSITIONING keys move each active cursor horizontally on the screen AREA CHORDS Pressing the LEFT RIGHT POSITIONING keys move each active cursor horizontally on the screen TIMERS Pressing the POSITIONING keys or any function key other than ENTER while in the TIMER W XY MEASUREMENT Mode has no affect Pressing a POSITIONING key while in the TIMER W MARKERS Mode stops the timer if it is running When positioning is complete measuring points in the AREA CHORDS COUNT and ANGLES CIRCLES Modes may be anchored Unlike these points measuring lines and point to point cursors in the XY MEASURE Mode cannot be anchored Therefore these are always positionable and cannot be erased To quit placing these measuring lines operators may press any other function key to begin a new function 62 Measuring Boeckeler VIA 170 Boeckeler VIA 170 ENTER STATISTIC nserf While in a Measure w Statistics Mode enters the displayed measurement into the Statistics Table In the Statistics Table undeletes a deleted statistic MOTE Users Will be able to ent
159. ual The distance between the two vertical measurement lines will continuously be Boeckeler VIA 170 Measuring 85 displayed in the upper left hand corner of the video screen as Xz The dis tance between the two horizontal measurement lines will continuously be displayed in the upper left hand corner of the video screen as Yz To perform comparison measurements in XY Mode 1 Position all four measuring lines at a fixed distance apart 2 lf operators have an optional knob controller set the COMPARE switch to the ON position Rotate the right knob to move the vertical measuring lines in uni son Rotate the left knob to move the horizontal measuring lines in unison 3 If operators have an optional joystick controller tilt the joystick left or right to move vertical the measuring lines in unison Tilt the joystick forward or backward to move the horizontal measuring lines in unison By positioning the pair of measuring lines at different locations on the screen operators may quickly determine whether or not objects in the field of view meet size specifications To enter the displayed X and Y values into the Statistics Table 1 From the Measure w Statistics Mode press ENTER STATISTIC Insert The Statistics Display will now read one COUNT higher and the MEAN will incorporate the new value To view the entire Statistics Table or to edit it press STATISTICS TABLE ALT S WARNING Users will be able to enter measu
160. uding monochrome RS 170 and color NTSC composite cameras monitors recorders video presentation products and other NTSC video equipments Boeckeler video interfaces may be purchased to create brightly colored marker overlays for use with Y C S Video or RGB video equipment An export model of the VIA 170 is compatible with European CCIR and PAL video standards 4 Getting Started Boeckeler VIA 170 IFEATURES VIDEO IMAGE MARKER Ten marking tools in keyboard order 1 Typed Text 2 Pointers 3 Grids 4 Scales 5 Circles 6 Boxes 7 Crosslines 8 Lines 9 Date Time 10 Draw Boeckeler VIA 170 Label video images for video print still image recorder or projection display Useful in record keeping presentations video confer ences meetings and more Upper and lower case characters are available and positionable anywhere on screen 10 different pointers can assist in marking a video image to point out important aspects of the image under study Pointers include four different arrows standard cross hairs pointed cross hairs a target circle a small circle a target box and a small box Each are positionable anywhere on screen Custom grids may be created in horizontal vertical or box patterns horizontal and vertical Size and position scales to create reticles for dimensional mea surements or subdivide scales with cross hairs for fine measure ments Sizeable horizontal and vertical scales availab
161. ursor left or right among options when such options are available ENTER STATISTIC nserf Not used in Marking Mode OVERLAY Home Removes the cursor active markers and data lines marker size coordinates timer from the screen so that only the anchored markers in the current overlay are visible This option is usually desired before making a video copy To regain an active marker or cursor on the overlay press any function key Boeckeler VIA 170 Ctrl Boeckeler VIA 170 CTRL OVERLAY Home Undelete Restores recently deleted marker to its original location on the marker overlay If markers were recently cleared pressing CTRL OVERLAY Home restores the full overlay of markers In a protected marker overlay the undelete command only affects added markers Undelete does not affect protected markers PREV OVERLAY Page Up Displays the previous overlay and the markers stored in that overlay if any Pressing this key repeatedly will continue to display each previous overlay in descending order The number of each new overlay will appear briefly at the bottom right corner of the screen Ten different overlays may be stored 1 10 If the overlay had been aligned the aligned markers will be displayed at their saved offset but the ALIGN Mode will not be active This means that the entire overlay will not be positionable until users activate the ALIGN Mode UNDO Delete Erases markers one at a time
162. xtension 29 problems 121 with composite systems 23 with rgb systems 26 with y c systems 26 interface rgb 26 interfaces for color 4 129 J joystick controller 4 9 16 comparison mode 82 86 connection 24 27 default to 24 K keyboard 4 9 34 56 function key 36 56 knob controller 4 9 14 24 76 77 80 86 connection 23 27 features 14 15 17 L label calibration 50 55 66 70 73 units 55 66 left right positioning 46 light pen extension driver 29 light pen 4 9 12 13 14 17 19 33 41 98 122 Boeckeler VIA 170 calibration pentip 13 line pattern measuring 3 57 79 thickness cursor 40 41 in drawing 41 lines key 40 marker 129 measurement list of figures vi magnification power of marker active 33 118 127 anchored 127 coordinates transmitting 115 display coordinates of 6 display size of 6 10 keys 34 36 mode 3 34 overlays ten 3 to anchor 33 marker display menu 37 markers 3 9 33 129 blooming 122 combination of 33 erase 6 hide show 6 protected See protected markers too many 124 marking general procedures 35 measure key 358 79 98 measure w statistics mode 7 10 55 57 58 59 60 63 65 66 68 69 81 83 86 89 93 97 103 104 measurement display transmitting keys 34 56 mode 34 53 56 modes seven 3 ten 3 x axis 79 98 101 y axis 81 13 41 129 70 73 115 Appendices 135 measuring general procedure 56 measuring line pattern
163. ys or other controller to adjust the size For fine sizing press the CTRL key along with the desired POSITIONING key Pressing the LEFT POSITIONING key will make the grid narrower while pressing the RIGHT POSITIONING key will make the grid wider Pressing the UP POSITIONING key will make the scale or grid taller while pressing the DOWN key will make the scale or grid shorter Vertical scales are sized using the UP and DOWN POSITIONING keys Horizontal scales are sized using the LEFT and RIGHT POSITIONING keys When the desired size is displayed press ENTER to store the size The sized grid or scale may now be positioned anywhere on the overlay using keyboard POSITIONING keys or other controller Anchor the grid or scale by pressing ENTER TIP Use cross hairs pointers as tick marks on a scale to create custom rulers First size and position then anchor a scale at the edge of the screen Press the POINTERS F1 key Select a cross hairs pointer then position the cross hairs over the scale so that one of the cross hairs lines overlaps the line of the scale Anchor the cross hairs pointer by pressing ENTER Another cross hairs pointer of the same type can be placed along the scale at a desired distance from the first pointer Anchor the second cross hairs pointer This same procedure can be repeated to create as many tick marks on the scale as needed Boeckeler VIA 170 Ctrl Boeckeler VIA 170 Y 00015 Microns Sa EES Figur

VIA-170 Operating Instructions

Contents

Download Pdf Manuals

Related Search

Related Contents