X1 Ranging Module Pro
Contents
1. 0 5 20 feet Accuracy over entire range 0 1 0 025 0 3 M range 1 0 Beam Pattern Typically 15 nominal Repetition Rate astable 10 Hz May be externally triggered up to a 50 Hz rate Output Voltage Analog 0 to 5 VDC Output Current maximum 5 ma Output Response Time Analog output is filtered to the approximate formula Vout 0 9 View value 0 1 Vpast avg value Power Requirements 8 to 24 VDC for 5V output Maximum Current 30 mA Operating Temperature 40 to 85 C 40 to 185 F WY CLIN onre csc causes n a O 17 grams 0 6 oz DIMENSIONS 0 eceecccccccceccaeeeseeeeeeees Diode KANT Housing Standard Finish Instrument Grade Flat Black Cold Rolled Steel Environmental Grade 304 Stainless Steel Open Face Parylene Coated 304 Stainless Steel 26 x Se 0 125 FIGURE 7 2 27 A 1 513 1 690 DIA DIA 0 150 Dia C plecs2. Commerce Road Livonia Michigan 48150 USA Chapter 1 1 1 1 2 1 3 Chapter 2 2 Chapter 3 3 1 Chapter 4 4 1 4 2 4 3 4 4 4 5 Chapter 5 5 1 52 39 Chapter 6 6 1 6 2 Chapter 7 Table of Contents Gels Started ssenrasesenercsscsrsreen nir Introdu HON aisne claeinbtesi ohio 2 WIC ONL CIS erennere eae EEs 2 Installing and Uninstalling Software 3 1 3 1 System Requirements 006 3 1 3 2 Installing Software 0 1 3 3 Uninstalling Software 06 6 PCO SCOPE orii E Scope Screen ControlScan ienai 8 Connecting X1 Ranging Module Pro PCB to COMPULED eissira r Gettin Connected sarreran inen anie 10 X1 Ranging Module Pro Circuit Board 11 INfOGUCHION y 5 05 hdcdieestodewkochsiddaiawrendedwhetecs 11 Electrical Connections ccc cece ec eeeee 11 4 2 1 Power and Signals J1 Connector 11 4 2 2 USB Cable J2 Connector 12 4 2 3 Transducer Connections 12 X1 Ranging Module Pro Circuit Board 14 General Installation Procedures 15 Calibration Procedures cccceeeeceecees 16 Theory of Operation ssscccccccccssscel Introduction ccc cece ccc e cee cee eeenee ce 18 Electrostatic Transducer cee ceee eee 19 X1 Ranging Module Pro ccc cece eee 21 Reference Materials ccccccccccccecccccesel4 Sona
3. Pro PCB to Computer 3 1 Getting Connected 1 Connect PCB to computer w USB cable to an available port then to the X1 Ranging Module Pro board into J2 2 Connect the transducer section 4 2 3 supplied in the kit to the cable at locations E1 and E2 on the PCB as shown in figure 4 1 Connect power cable to J1 noting polarity Run SensComp Scope2_5_ 6 program on PC Right click on connect button then OK Press YES to let computer find port NO to manually enter port number Select YES 7 Unplug the USB cable to the SensComp board then OK 8 Plug in USB cable from the SensComp Board back in to the PC OK 9 Left on Connect button Sa ara a Note Windows may find new hardware follow window hardware driver install wizard s to install emulated RS 232 COM port USB drivers When Windows prompts you to select a file path to locate drivers point it to the SensComp CD in your CD drive 10 Once drivers are installed press the connect button and the X1 Ranging Module Pro should start to communicate to the PC scope and you should see the REC Vout ECHO on your PC screen Depending where target 1s you may have to adjust horizontal time to see target trace 10 4 1 4 2 Chapter 4 X1 Ranging Module Pro Circuit Board Introduction The X1 Ranging Module Pro w USB Scope sensor provides a total system in a compact package containing an ultra sensitive electro
4. Reset Reset s the PIC 18F4550 uProcessor XDCR E1 Transducer connection XDCR E2 Transducer connection GAIN Adjust the receive gain of the sensor MAX Sets maximum range of detection window 14 4 4 e MIN Sets minimum range of detection window e Scale Adjust Adjusts analog output voltage at full range scale Power LED LED 6 Indicates power is on Target Detect LED LED 1 Flashes when setting MIN MAX ranges also lights when a target is detected between the set MIN MAX ranges during Operation e TPI Test Point 1 REC Amplified return echoes e TP2 Test Point 2 BLNK transmit receive blanking signal e TP3 Test Point 3 ECHO Is a PWM pulse width modulated signal which is proportional to the distance from the transducer to the detected target General Installation Procedures 1 Always mount the sensor s transducer in a suitable dry location The X1 Ranging Module Pro is designed to be used indoors or in protected environments only Excessive moistures in the circuit board and transducer will result in damage and improper operation and will void all warranties 2 Mount the X1 Ranging Module Pro transducer as far off the ground as practical in a location where environmental interference sources are minimized examples are EMI sources air nozzles excessive air turbulence etc 3 Ifnecessary adjust the gain to the minimum setting necessary to en
5. follow install wizard 0902704_ 1606 FIGURE 1 1 4 Start Installation ie X1 Ranging Module Pro Sensor Scope Welcome to the X1 Ranging Module Prol Sensor Scope Setup Wizard The installer will guide you through the steps required to install x1 Ranging Module Prol Sensor Scope on your computer Click Nest to continue WARNING This computer program is protected by copyright law and international treaties Unauthorized duplication or distribution of this program or any portion of it may result in severe civil or criminal penalties and will be prosecuted to the maximum extent possible under the law FIGURE 1 2 5 Select location to install program H X1 Ranging Module Pro Sensor Scope a oO Select Installation Folder The installer will install 1 Ranging Module Prol Sensor Scope in the following folder To install in this folder click Nest To install to a different new or existing folder enter one below or click Browse Folder C Program Files SenseCompS cope You can install the software on the following drives Volume Disk Size 74GB m 2 FIGURE 1 3 6 Confirm that you want to install this software i X1 Ranging Module Pro Sensor Scope m Confirm Installation The installer is ready to install x1 Ranging Module Prol Sensor Scope on your computer Click Next to start the installation FIGURE 1 4 7 So
6. 1 2 Volts The system generates a logic level output signal at the time of the received echo The time interval between the transmit signal start Internal CLK or Ext Trigger Input and the received echo ECHO Output can then be measured multiplying this time by the speed of sound yields the round trip distance to the object If the actual distance is not required a simpler timing circuit can be employed to determine when an object comes within some preset zone of the sensor 4 x T E F 9 0 CIRCUIT GRAIN 50 55 50 55 FREQUENCY kHz FREQUENCY kHz FIGURE 5 6 ae i Note ONLY the graphs of the first eight gain steps are included here for clarity Step 9 11 are identical to step 8 except that each successive step is increased in gain by 4 dB These graphs are generated from theoretical information not experimental data ALLLLLLLLLLILI z Pih ALUA Cr ii Swi zi FIGURE 5 5 22 23 Chapter 6 Reference Materials 6 1 Sonar Signal Timing Sonar Signal Timing Cursi P t j i Guise Pos 4 Bre 3 Saas Unprocessed returned echo FIGURE 6 1 mage shown is taken using an actual high speed oscilloscope for clarity some high speed transmit signals not enabled in PC Scope De 4 5 mS x 1125 9842 2 Dg 5 0669 2 2 533 Feet Dj 2 533 x 12 30 40 Inches 24 6 2 Distance Calculator Ultra Sonic Sensor Distance Calculator ENGLISH Calculator D D
7. 98 cans FIGURE 2 1 X1 Ranging Module Pro USB Scope Controls l Port Connected This window indicates that the PC scope port is connect disconnected to the selected COM port Connect Disconnect Connects or disconnects the PC scope to the selected COM port COM Port Indicates the COM port which the USB cable is plugged into Sweep Delay Delays scope sweep to view signals without having to change the selected horizontal time base 10 11 12 13 Horizontal Time Selects the proper timebase to view the input signal Channels Selects the channel to display input signal desired Note ECHO acts as the scope trigger to time all other signals It can be selected to be displayed or not Curser On Off Turns scope cursor on P off Place the computers cursor over the pc scope cursor symbol and left click and hold while dragging cursor to the location you wish to measure The cursor window displays Time mS Analog Output Voltage and Distance to Target Inches Pause Captures an image of the real time scope screen Print Colors Selects a white screen window for printing scope image Saves ink when printing Video Colors Selects a black screen window for better color separation for live screen images Print Sends captured scope images to the printer Save Saves captured scope images to disk PC Scope Screen Displays scope images Chapter 3 Connecting X1 Ranging Module
8. PONSE FIGURE 5 2 FIGURE 5 3 20 10kHz 20 30 40 50 60 70 80 90 100 TYPICAL BEAM PATTERN AT 50 KHz Note dB normalized to on axix response FIGURE 5 4 5 3 X1 Ranging Module Pro The X1 Ranging Module Pro sonar system electronics are integrated onto a single module Figure 5 5 utilizing custom integrated circuits to perform the analog and digital functions These ICs are packaged along with the necessary discrete components on a single printed circuit board When activated the system generates a series of 49 4 kHz pulses during a 1 millisecond long transmit period This signal is amplified with a step up transformer to 400 Volts peak to peak with a 200 Volt DC bias to drive the transducer The bias voltage is maintained on the transducer with a storage capacitor during the time the transducer acts as a microphone to receive the echo The receiving amplifier is blanked for 0 9 milliseconds following the end of the transmit signal to allow sufficient time for the energy in the transducer diaphragm to decay below the threshold level 21 The gain of the receiving amplifier increases as a function of time Figure 5 6 to compensate for signal losses at further distances and decreases its bandwidth to reduce noise pick up When a signal is received by the system a current source 1s turned on if the signal 1s above a preset threshold level The current source charges a capacitor until the voltage on the capacitor reaches
9. SensComp Inc www senscomp com Copyright 2008 SensComp Inc All Rights Reserved Proudly made in the USA FTC sensComp global components XI Ranging Module Pro Version 1 1 User Manual Copyright Notice Copyright 2008 SensComp Inc All rights reserved All text images graphics and other materials in this X1 Ranging Module Pro User Manual are subject to the copyrights and other intellectual property rights of SensComp Inc its affiliated companies and its licensors Only SensComp authorized distributors have a limited right to modify these materials to include such distributor s pricing and ordering information and make copies of the materials SensComp authorized distributors may also use the SensComp logo and graphics in advertising SensComp products Otherwise these materials may not be modified or renamed or made a part of any other materials nor may these materials be copied for commercial use or distribution Specification Sheets and Application Notes may not be modified by anyone for any reason You must retain all copyright and other proprietary notices on all copies of the materials You shall comply with all copyright laws worldwide in your use of the materials and prevent unauthorized copying of the contents Except as provided in this notice SensComp Inc does not grant you any express or implied right in or under any patents trademarks copyrights or trade secret information SensComp Inc 36704
10. al to the distance between the Minimum LED MIN and Maximum MAX range setting By reverse setting the MIN and MAX range settings the i slope of this output will be 5 to 0 VDC pasaar 4 TRIG EN 3 EXT TRIG 2 GND POWER purPey 1 VDC con oy MIND 1 Using the supplied USB cable plug the small end Micro B male into J2 on the X1 Ranging Module Pro board 2 Plug the larger connector USB A male into an available USB port on your computer es 7 No Connection N C PC Laptop janie 7 NC 6 ANALOG OUT 4 2 2 USB Cable J2 Connector fon ee un 4 2 3 Transducer Connections FIGURE 4 1 1 El Transducer positive Black Wire 2 E2 Transducer ground Note It may be necessary to connect a 470 1000 ufd electrolytic capacitor across the power supply to ground in order to provide enough inrush current 2 Amps for 500 uS during the transmit cycle This capacitor is not required using the power supply in kit 12 13 4 3 X1 Ranging Module Pro Circuit Board USE User Comm USB LED s LED s Boot Reset USB XDCR Target Detect LED 7 N C U1 6 ANALOG OUT Eai gt ECHO 2 GND 1 SUPPLY VDC Scale 4 TRIG EN ct 3 EXT TRIG ji AUSE Ea FIGURE 4 2 J1 Power and sensor signals connections J2 USB port User LEDs LED 2 3 For future use USB Comm LEDs LED 3 4 These LEDs verify that the X1 Ranging Module Pro board 1s communicating to the PC USB Boot Not used
11. ftware installs ie X1 Ranging Module Pro Sensor Scope Installing X1 Ranging Module Prol Sensor Scope x1 Ranging Module Prol Sensor Scope is being installed FIGURE 1 5 8 Close dialog box after program installs 3 Software will uninstall automatically ie X1 Ranging Module Pro Sensor Scope i X1 Ranging Module Pro Sensor Scope Installation Complete Welcome to the X1 Ranging Module Prol Sensor Scope Setup Wizard x1 Ranging Module Prol Sensor Scope has been sucessfully installed Select whether you want to repair or remove X1 Ranging Module Prol Sensor Scope Click Close to exit Repair 1 Ranging Module Prol Sensor Scope Remove X1 Ranging Module Prol Sensor Scope WARNING This computer program is protected by copyright law and international treaties Unauthorized duplication or distribution of this program or any portion of it may result in severe civil or criminal penalties and will be prosecuted to the maximum extent possible under the law FIGURE 1 6 FIGURE 1 7 1 3 3 Uninstalling Software 1 To uninstall the X1 Ranging Module Pro Sensor Scope insert the software CD and open the VB_USB Install2 5 6 msi file and then follow the uninstall wizard 2 Select Remove X1 Ranging Module Pro Sensor Scope and click Finish Chapter 2 PC Scope 2 1 Scope Screen Controls re oe 8 X1 Ranging fAodule Pro Sensor Sct pe Hotiortal Time 31 074588
12. ing echo The electronic ranging module contains all of the circuitry needed to generate the transmit signal drive the transducer receive the echo and process the information received by the transducer The distance from the transducer to the target can then be computed with additional circuitry designed by the end user knowing the speed of sound in air or other gas and the time interval between the transmit signal and the received echo as provided by the sonar ranging module The X1 Ranging Module Pro operates over a distance range of 6 inches to 20 feet 0 15 to 6 10 meters increasing the receiving amplifier gain and decreasing the bandwidth with time to compensate for signal losses over the distance range Then to minimize the system s susceptibility to noise pick up a signal integration scheme is employed before the system 18 locks onto an echo Once the threshold level of the integrator is reached a signal is generated to indicate a received echo The logic level outputs for the transmit signal and received echo can be used to perform control functions or calculate distance to the object with a minimum of additional circuitry 5 2 Electrostatic Transducer The key to the system is the unique electrostatic transducer Figure 5 1 Itis composed of a very thin Kapton film diaphragm vacuum coated with gold to form the negative electrode The positive electrode is the coined aluminum backplate which also provides the reso
13. istance in Feet per Second ft s D Distance in Inches per Second in s TOF Time of Flight Time in Second s ECHO signal Positive Pulse Width SP Speed of Sound in Feet per Second ft s 68 F 1125 9842 SP Speed of Sound in Feet per Second ft s 32 F 1087 2703 D fps TOF s x SP D ips D ft s x 12 2 METRIC Calculator D Distance in Meters per Second m s D Distance in Millimeters per Second mm s T Time of Flight Time in Second s ECHO signal Positive Pulse Width S Speed of Sound in Meters per Second m s 20 C 343 2 S Speed of Sound in Meters per Second m s 0 C 331 4 D m s T s x SP m s D mm s D im s x 1000 2 D in s D mm s 2 METRIC to ENGLISH METRIC to METRIC Conversions Meters to Feet Meters 3048 Meters to Millimeters Meters x 1000 Millimeters to Meters Millimeters Meters Millimeters to Inches Millimeters 25 4 or Millimeters x 0 03937 C to F C x 1 8 32 ENGLISH to Metric ENGLISH to ENGLISH Conversions Feet to Meters Feet x 3048 Feet to Inches Feet x 12 Inches to Feet Inches 12 Inches to Millimeters Inches x 25 4 or Inches 0 03937 F to C F 32 1 8 25 Chapter 7 Specifications X1 Ranging Module Pro Instrument Grade Environmental Grade and Open Face Specifications xxx Specifications subject to change without notice Distance Range 0 15 6 10M
14. nant structure for the diaphragm Mechanical bias as well as electrical contact 1s provided by a stainless steel leaf spring The transducer is 4 centimeters in diameter and weighs only 8 grams The system drives the transducer with a 1 millisecond tone burst at 400 Volts peak to peak and 200 volts DC bias producing an output sound pressure level at 50 kHz of approximately 110 dB SPL at meter The transmitting response Figure 5 2 is seen to be quite flat to beyond 100 kHz This provides the transducer with very fast damping so that ranging at high gain can be achieved as quickly as possible after transmit The very wide bandwidth and extremely high output allows the system to operate over a very wide distance range The system is capable of a minimum range of 6 inches With a receiving sensitivity Figure 5 3 of 42 dB re 1 Volt Pascal the transducer provides sufficient output for the system designed to operate to a maximum range of 35 feet The transducer 1s approximately 1 5 inches in diameter yielding a 3dB full angle beam width Figure 5 4 of approximately 15 degrees at 50 kHz HOUSING GOLD PLATED PLASTIC FOIL LEAF SPRING INNER RING TRANSDUCER ASSEMBLY 300 VOLTS FIGURE 5 1 NOTE These curves are representative only Individual responses may differ S e a S 1OkHz 20 30 40 50 60 70 80 90 100 n Q n 2 a a i 5 dB DIYVIST TON TYPICAL FREE FIELD RECEIVE RESPONSE TYPICAL TRANSMIT RES
15. r Signal MiMi 2 i 2vasrssecdscvesecwoaduencse 24 Distance Calculator 0 cece cece cece eeee eee 25 SpecificationS ssesesesessesesesesesoeseseseee 20 1 1 1 2 Chapter 1 Getting Started Introduction This kit offers both a starting point as well as a complete solution sensor for Ultrasonic Range Detection and Measurements The knowledge you gain from using this kit will enable you to identify various uses for teaching hobby consumer and industrial projects SensComp s X1 Ranging Module Pro w PC Scope and Ultrasonic Electrostatic Transducer sensor system provide a solution to simplify your product design and packaging Ultimately the kit helps make design and development a more fluid process by taking the tedium out of testing and experimentation It allows you to focus on your creative ideas and designs Kit Contents X1 Ranging Module Pro PCB Electrostatic Transducer AC Power Adapter USB Cable Transducer Enclosure w lid Screws Quick Start Guide User Manual Sensor Scope Software CD Storage Case m m hA me me me me e 1 3 Installing and Uninstalling Software 1 3 1 System Requirements PC or Laptop Windows XP or Vista USB Port CD ROM drive 6 Mega byte Available Hard Drive Space 1 3 2 Install X1 Ranging Module Pro PC Scope Software l Close all open programs Insert CD into CD drive Open My Computer and select CD drive Open VB _ USB INSTALL2_ 5 6 ms1 and
16. static transducer and the supporting circuitry to provide a 0 to 5 VDC output with fully independent zero and span adjustments over the entire operating range of detection from 0 5 20 away This sensor can be externally triggered or can continually sense ata 10 Hzrate This unit also displays the ECHO REC and Analog Output on any Windows XP or VISTA PC and can also print hard copy images Electrical Connections 4 2 1 Power and Signals J1 Connector Pin 1 Power Supply Pin 2 Ground Pin 3 External Trigger Pin 4 Trigger Enable Pin 5 ECHO Pin 6 Analog Output Pin 7 N C 1 Power Supply Requires a 8 to 24 VDC regulated power source with a 30 mA current capacity 2 Ground Common return for DC power supply analog output and clock signals CAUTION When the X1 Range Module Pro board is powered up there is a 400 VDC very low current potenial on the El terminal to ground 3 External Trigger External clock pulse rising edge will start the transmit receive cycle Accepts TTL compatible logic level clock signals 0 5 VDC up to 50 HZ 4 Trigger Enable Pull this input low GND to enable the external trigger clock 5 ECHO Is a pulse width modulated PWM output from 0 to 5 VDC It is proportional from the start of the transmit signal to the reception of the echo return signal _ 6 Analog Output 0 to 5 VDC output that is a Power proportion
17. sure reliable target detection excessive gain can result in false detections 4 As supplied the X1 Ranging Module Pro has been calibrated and should function without further calibration 4 5 Calibration Procedures p lt Apply DC power see 4 2 Electrical Connections Connect a DC voltmeter DVM Plus lead to the Analog Output pin 6 and the DVM Minus lead to Common pin 2 Place the target at the maximum desired distance for the full scale voltage output Depress and hold the MAX RANGE SET push button and wait for the detect LED1 indicator to stop flashing and the transducer generates a beep sound before releasing The X1 Ranging Module Pro is now calibrated to your desired target distance for full scale analog voltage output Place the target at the desired minimum distance for the zero voltage output Depress and hold the MIN RANGE SET push button and wait for the detect LED 1 indicator to stop flashing and the transducer to generate a beep sound before releasing The X1 Ranging Module Pro is now calibrated to your desired target distance for zero analog voltage output Note The slope of the analog output voltage can be changed by reversing the MIN and MAX range settings 1 e MAX 0 volts and MIN 5 volts Scale Adjustment Place a target at the absolute maximum detect distance desired 20 feet max to assure maximum voltage output at that distance Adjust the SCALE Adjus
18. t potentiometer until a 5 0 VDC reading is obtained 16 Gain Control The X1 Ranging Module Pro gain was pre set at the factory for optimum performance To re calibrate the GAIN potentiometer place the target at the maximum desired detection distance Rotate the GAIN potentiometer fully counter clockwise CCW Now slowly rotate the GAIN control clockwise CW until detection occurs Rotate the Gain control CW an additional 1 16 turn Note Always calibrate the GAIN control for minimum gain required for reliable detection Excessive gain may result in false target detection Chapter 5 Theory of Operation 5 1 Introduction Determining range by using ultrasonic sound waves for echo ranging is a simple process A short burst of ultrasonic energy is generated electronically amplified and transmitted by a transducer The signal travels through the medium in this case air reflects from the target object and returns to the transducer This signal is then received amplified and processed by the system electronics The time for this round trip can then be determined and knowing the correct speed of sound the distance to the object calculated The simple ultrasonic echo ranging system included in the X1 Ranging Module Pro kit is composed of two main parts the transducer and the electronics drive module The transducer is an electrostatic type transducer used to both transmit the signal out and also receive the return
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