WinCam-FIR Manual Supplement
Contents
1. LLL LL LELELLLLL ES EEE Ess eee ee EE X a aaa Scale 1100 0 um div Peak 95 2 B 1 2 6 WinCam FIR_Manual_supplement_1205a docx Page 8 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA DataRay I nnovation The company that brought you the first Windows based CCD beam profiler the first thin camera for confined spaces the first software slider exposure and electronic auto shutter the first standard window free CCD for no fringing the first auto orientation on the ellipse amp the first USB 2 0 beam profiling camera has done it again Compact Room Temperature Port Powered WinCamD FIR cameras Features XY profiles and centroids Linear and logarithmic displays Co gt gt gt gt Digital serial link for EMI immunity Gaussian and Top Hat least squares fits Ellipse Angle Major Minor Mean Diameters Background capture and subtraction Image amp Intensity Zoom Linear and area filters Image Averaging 1 to continuous PC Or Mac Intel Operation c gt gt gt gt WinCamD FIR Specifications Preliminary specifications subject to change without notice Wavelength Ranges Interface Certification Measurable Sources Measured Beam Powers Manual Beam Attenuation Measurement Accuracy Measured amp Displayed Profile Parameters Displayed Profiles Displayed Plots Processing Options Pass Fail display Averaging Log data Relative Power M2. 355265608010 00000 If no cal file is provided go to Step 14 Ma results Press Start Calibration 11 Place the screw on cap on the camera or lens cap on optional Camera bias voltages lens Go for a break Return in five minutes after the camera YSK 40 ta E 4 976 has warmed up Required before camera calibration VFID 22 Bte 26 00 Recommended before normal use or if the camera temperature has changed In the Setup pull down menu choose Calibrate current Camera to open the FIR2 Calibrate Dialog Cancel 12 Verify that the Serial VSK and VFID data in the calibrate dialog corresponds to the label on the top of the camera If not enter the camera SN number from the label on top in the dialog See label example right Enter the camera bias voltages VSK and VFID from the label on top of the camera Press Start Calibration 13 The calibration routine records the image offset maps and optimum VSK value at gain steps of 0 25 After several seconds you will see the line Success restart calibration appear in COUSENUES i the dialog Press Save and exit l The calibration file is saved in c DataRayData directory as this example 3011 37422055 uFir_2_cal If you move the camera to another PC either redo the calibration or also move the file WinCam FIR_Manual_supplement_1205a docx Page 3 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Reference Image amp Damage 14 A
3. 50 0 12331 5 um 2Wvb 50 0 3347 7 um ee a a DEREN a GERE REESE ERES ERES IESSER 31 A a E e CONNEUNEH SEIEN TERI a MN ee ee ee ee ae ee ee ee ee ee ee EE eed Stale MAUN wmmp Fea Cale dE worn Hrs 16 Measure your estimated beam irradiance It must be 25 mW cm Unscrew the plastic dustcap 17 First time carefully amp iteratively walk the beam in from the side while adjusting the Imager Gain As the beam saturates stop walking the beam onto the sensor As ADC Peak approaches or exceeds 100 the screen values will turn Orange as a warning As the beam saturates first use the middle slider to reduce the I mager Gain Diha 604 5 um Pixel 42960 ER EA Clip b 50 0 Major 474 4 um Minor 8464 8 um Mean 8854 3 um Ficlstier Power 0 00 Full lt 2 2ZWva 13 5 5 2Wwvb 50 0 Scale DO mmgdre Pea h5 45 x H 5 4 rale DUO array Pea WinCam FIR_Manual_supplement_1205a docx Page 5 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA 18 Histogram By default this is not visible and may confuse more than it helps This shows the 0 to 100 distribution of ADC pixel levels in the current screen These levels are used by the VSK in Auto mode to fine adjust the VSK To see the histogram right click on the 2D image and select Show ADC Histogram live only 19 VSK Auto baseline adjust By default this is now off When on the HRZ Aute baselin
4. Observe max irradiance limits or pay for sensor replacement Carefully read this supplement twice before attempting to use the camera Compact Portable Port Powered USB 2 0 FI R Beam Profiling for Windows 7 Vista amp XP Features o 35 um pixel pitch 392 x 296 pixels 13 72 x 10 36 mm I mage Area Silicon microbolometer o Port Powered USB 2 0 flexible 3 m cable no power brick 0 1 85 47 mm thin o 12 bit ADC 4 MB image buffer amp on board microprocessor 100 1 Signal to rms noise attainable o Imager Gain range 4 75 1 o 10 1 ND absorbing screw on filter provided for 2 4 um B o No Chopper Required Measure Pulsed or CW Beams Room Temperature no cooling TE power required p EARE Applications mimm o MIR FIR laser profiling 2 o Field servicing of MIR FIR lasers and laser based systems 034 o Optical assembly amp instrument alignment 02 Beam wander amp logging 014 p I MPORTANT 2 das 50 mW cm saturation CW irradiance V TBA mW cm catastrophic damage threshold Carefully measure your beam irradiance before exposing camera to beam Minimize time that the camera spends in higher irradiance beams Long term over exposure can increase dark current 5 mw Az 3 um laser image Gbada oh BED Dien Ween ba D Fe PA n T ery bee EP lg bey i i Hachem vnd Uni en Pin Gate aufm damigi fin Core Vers Limite biu lepeed Ce we eee es es ee ee eo x Y LH IL ok ee oe yu Deis 11
5. files save all WinCamD custom settings for particular test configurations On screen in selectable Pass Fail colors Ideal for QA amp Production Beam dimension running average up to 50 samples Up to 4096 samples Centroid Min Max Mean Standard Deviation Rolling histogram based on user s initial input Units of mW p dBm or user choice relative to a reference measurement input Fluence within user defined area 320 gm 11 oz 320 gm 11 oz 2 GHz Intel dual core or higher running Windows 7 Vista XP 32 or 64 bit 2 GB RAM 1 GB Hard Drive space 1024 x 768 monitor USB 2 0 hi power 500 mA port WinCam FIR Manual supplement 1205a docx Page 9 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA ORDERING INFORMATION o Limited 1 Year Warranty Free Software Upgrades o 30 Day Sale or Return Evaluation PO excludes sensor damage A Complete System comprises Camera Software 3 m 10 ft Cable User Manual Part Number component descriptions WinCamD FIR2 16 Complete working USB 2 0 camera system includes manual cables and software 2 16 um Other DataRay Profiling USB 2 0 Instruments 190 nm to 3 5 um options BeamMap2 Real Time M Squared Multi plane profiler 0 1 micron resolution on CW lasers Centroid Alignment Divergence M Visible and Telecom wavelengths Optional Dual Detectors 190 1800 nm Beam R2 0 1micron resolution on CW lasers 0 5 micron to 4 mm beam dimensions Optional Dual Detectors 1
6. 3 O An ND2 0 is provided with every system Damage threshold 1 W cm 6 OD 5 MD1 O N D3 0 NO2 O 1500 2000 2500 3000 31500 4000 A num b C mount IR metallic ND filters on a Ge substrate flat over 2 14 um ND 0 3 0 5 1 0 2 0 3 0 Stocked by DataRay as FI R NDO 3 FI R NDO 5 FIR ND1 0 FI R ND2 0 amp FI R ND3 O Damage threshold TBA W cm May give fringing due to plane parallel internal reflection c ZnSe FIR Wire Grid Polarizer Extinction Ratio 100 at 3 um 300 at 10 6 um Available in a C mount rotating mount as FIR WGP RM Damage threshold 50 W cm 2J cm 100ns d Wedge beamsplitters ZnSe 3 and CaF unmounted 25 mm diameter wedge beamsplitters Stocked by DataRay as FIR W CAF2 3 FI R W ZnSe 3 for unmounted wedges or FI R MW CAF2 3 FIR MW ZnSe 3 for a mounted wedge Damage threshold 50 W cm 5 J cm at 10 6 um 100 ns 1 Hz Reflectivity at 45 Two orthogonal wedges S p 9o Ratio Av 9o Ratio CaF 6 85 0 47 14 6 1 3 66 0 032 3115 1 ZnSe 27 9 9 8 3 58 1 17 1 2 18 46 1 WinCam FIR Manual supplement 1205a docx Page 11 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Beam CaF Primary amp secondary reflected beam separation separation vs distance from wedge s mm mm 2 46 0 0301 x z 8 0 7 0 6 0 5 0 oa 4 0 3 0 2 0 1 0 0 0 0 80 100 Z mm from wedge c center Beam ZnSe Primary amp secondary reflected beam separation separation vs distance
7. 659 oem Pree JISE 75E T Tm EUN i Clip a 13 50 MEE Clip b 50 0 clipi 50 04 Major 5595 0 um Minor 4976 0 um Majiso 33180 um Mean 5026 1 um En aw It RP 4i5deg Enp oss Ep 3 0 Orient 20 7 deg Crosshair 0 0 deg Ye 470 2 um eat xe 1124 9 um _SFit 63 5 mage zoom 00 image zoom 1 2Wua 13 5 5402 1 um zva 13 5 5086 3 um 2Wub 50 0 2865 2 um 2Wivb q 50 0 24134 um 2874 3 um P AN i r1 4 4 f oh 4 4 t E 3 u E nave AJ IPIE E ts J xA z i y 2 f d A i IL a s Es POE ih w E 2 5 a near s T x in WinCam FIR Manual supplement 1205a docx Page 1 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Few hundred mW cm burn in damage threshold E Rene eee tata eset Very Expensive Sensor observe max irradiance limits I rradiance limits amp Damage Thresholds 1 We cannot stress strongly enough that the maximum irradiance limits must be observed To facilitate this we provide two graphs of APPROXIMATE maximum signal versus beam diameter at 3 amp 10 um However in our experience many IR lasers beams have peaky profiles rather than smooth Gaussian or top hat pixels Even on commercial lasers we have seen major profile variations of peak intensity and position with time see burnt sensor image on previous page WinCa
8. 90 1800 nm BeamScope P8 100 microns to 23 mm M accessory ISO 11146 Standard Linear scanning slit CW or Pulsed PRR 5 kHz lasers up to 23 x 45 mm scanned area WinCamD UCD12 14 Bit ADC with high resolution 2 CCD array 4 65 x 4 65 um pixels WinCamD UCD15 14 Bit ADC with high resolution CCD array 4 4 x 4 4 um pixels WinCamD UCD23 14 Bit ADC with high resolution 2 3 CCD array 6 45 x 6 45 um pixels DualCamD Measure real time divergence and ratios with cameras at 90 BladeCam 0 65 thin CMOS camera with 2 CMOS sensor 5 2 x 5 2 um pixels Threaded 4 40 Screw on ND filter 4 places on rear in 5 mm deep housing co Depth to ln Ge window 3 0 mm md 6 6 0 5 mm Optical depth C to sensor surface 1 USB 1 4 20 Big C Mount 0 3 deep 1 0 32 UNC 2B i di D a e l l l l 186 265 24 5 1 325 0 175 0 206 1 51 WinCamD FIR2 16 Outline amp Mounting Shown actual size WinCam FIR Manual supplement 1205a docx Page 10 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Appendix A a non exhaustive list of related products 1 Power Meters for uW to W a Gentec eo XLP12 1S H2 DO with P Link USB interface pW to 3 W 2 Samplers amp Attenuators a C mount Absorbing Glass ND filters mounted at 3 originally specified for 350 to 1150 nm silicon CCD systems The graph below shows the calculated IR transmission for these filters Stocked by DataRay as ND1 0 ND2 0 and ND
9. aturation at low I mager gain try to WinCam FIR Manual supplement 1205a docx Page 2 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA keep the time per session that the laser is on the imager to minutes not ten s of minutes We may relax this restriction in the future 6 With the FIR2 16 camera DataRay includes an ND2 0 546 nm filter which is usefully ND 1 0 at wavelengths below 4 um See Appendix A for the transmission curve Safety 7 Sensor Safety IMPORTANT You are totally responsible for the safety of the expensive sensor If you damage the sensor the replacement charge is many 1 000 s See Irradiance limits amp Damage Thresholds and Operation below 8 Laser Safety You are totally responsible for your own laser safety and for the safety of your colleagues Wear appropriate goggles Use appropriate screens and door interlocks Installation 9 Before attaching the camera you must install the software open and close it in order to install the driver Install the camera on the computer per the main User Manual Leave the cap on the camera Start the software Study the WinCamD manual amp this supplement Calibration 10 The first time on any particular computer a Camera not calibrated warning will appear If a xxxx yyyyyyyy uFir_2 cal file is provided on the CD use FP calibrate Dialog xi Windows Explorer to copy it to the c DataRayData Please enter or verify camera name directory Go to Step 16
10. diameter in mm x 2 Want to see detail in the beam Use Area filter lt Beam diameter in mm 2 Want to compromise Use Area filter Beam diameter in mm 25 When you have set Imager Gain irradiance and the options above appropriately you will arrive at something like this Dich 4001 um Pll 5 42607 Eb 5 Clip a 13 5 cli 50 0 Major 8 83 mm Minor 8 82 mm Mean 10 55 mm Eff 2W 10 78 mm Crosshair 0 0 deg dHizlszrer Mewes 8 UD Full Bsns FO Centroid absolute E Neen oT Ee ADC Peak 69 2 0 0 zWua 1 Seale PUlN ume Peaks DET Is IL Seale 180 Bunde Pr WE 26 Optionally in the Average pull down menu set e g Average 20 WinCam FIR_Manual_supplement_1205a docx Page 6 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA 27 Background Subtraction is implemented as ii dverage of 20 described in the main User Manual Remember that after blocking the beam you must allow the software to count back up to the chosen Average before turning the beam back on again Delta 156 7 um Pisel 58509 89 3 Average of 20 28 Optionally press the normalize button on the toolbar to get this This can only be done before saving the file it cannot be done on a previously saved file 29 Press Stop e and bl
11. e adjust X control algorithm uses the lower region of the histogram distribution range to refine the baseline set during calibration in order Now considered normally unnecessary Right click on the words VSK offset I barenalei theboxrigh M MOIRSS D cu 20 Signal level too high If the Imager Gain is 1 use the middle slider to reduce the Imager Gain f the I mager Gain is fully to Canel the left and you are still saturated immediately block the beam and remeasure and reduce the irradiance See Appendix A for samplers and attenuators 21 The Integration slider has no effect on performance sensitivity A sensor limitation 22 Signal level too low Increase Imager Gain at the expense of signal to noise ratio Alternatively particularly on scene images but not normally recommended on beam images with the FIR auto base adjust mode disabled adjust the VSK slider to a level which suits you 23 Readout in mm Want to read beam diameter in mm rather than um Go to Setup and choose Numeric Display Modes Select XXX Y mm 24 Smooth the Beam or See Detail In the Filter pull down menu select an Area filter Area display filters improve visible SNR at the expense of resolution E g the 3x3 pixels filter will improve SNR by a factor of 3 but increases the effective pixel size from 35 x 35 um to 105 x 105 um This is still 50 resolution elements across a 5 mm beam Want mainly to smooth the beam Use Area filter Beam
12. easurement Fluence Weights Camera Head Optional f 1 35 mm lens Minimum PC Requirements 2 16 um USB 2 0 for laptops amp desktops 3 m standard thin cable 5 m option RoHS WEEE CE CW beams Pulsed sources free running not triggerable average pulses over the 20 ms exposure period or with frame averaging Mean irradiance limits still apply See Graph above See Appendix A 5 um processing resolution for interpolated diameters Absolute accuracy is beam profile dependent 35 um accuracy is frequently achievable Centroid accuracy is also beam dependent It can be as good as 20 um since it is arithmetically derived from all pixels above the centroid clip level Beam Diameter Diameter at two user set Clip levels Gaussian amp Second Moment beam diameters Equivalent diameter above a user defined Clip level Equivalent Slit and Knife Edge diameters Beam Fit Gaussian amp Top Hat profile fit amp fit Equivalent Slit profile Ellipticity Major Minor amp Mean diameters Auto orientation of axes Centroid Position Relative and absolute Intensity Weighted Centroid and Geometric Center Beam Wander Display and Statistics Smoothing Filter Triangular running average up to 10 FWHM 2 D amp 3 D plots 10 16 256 or max colors or gray Contoured display at 10 and 16 color X Y Profiles 2D 3D Plots Zoom to x10 Image amp profile averaging 1 5 10 20 Continuous Background Capture and Subtraction job
13. from wedge s mm mm 1 27 0 0582 x z 8 0 6 0 5 0 4 0 3 0 2 0 1 0 0 0 0 80 100 Z mm from wedge center e AR coated wedges 0 5 reflectivity TBA f C mount OD 0 30 amp 0 76 25 4 mm diameter CaF 10 6 um attenuators Stocked by DataRay as FIR CaF2 0D0 3 FIR CaF2 0D0 76 Damage threshold 50 W cm 5 J cm at 10 6 um 100 ns 1 Hz WinCam FIR Manual supplement 1205a docx Page 12 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Appendix B Defective Pixels Specification A pixel is considered non operating if e It s responsivity is 0 8 x or gt 1 2 x average responsivity e It s NETD is 1 5 x the average NETD in the STR A single non operating pixel is a non operating pixel with no adjacent non operating pixel Area THE FPA is divided into three areas which have the same optical axis e Area A the central zone of 80 x 60 pixels e Area B the central zone of 320 x 240 i e excluding Area A of the array e Area C the rectangular annulus between the full 392 x 296 image are and Area B Cluster A cluster is defined as a group of at least two non operating pixels adjacent by side or corner Clusters are defined by their size in terms of non operating pixels Non operating row A row is considered non operating if more than 50 of the pixels in this row are no operating Non operating column A column is considered non operating if more than 50 of the pixels in this column are no operati
14. fter calibration we take a Reference file at Imager Gain 1 and pressing Ctrl N to show the uncorrected offset map IMPORTANT In the event of any claims regarding imager damage this is the definitive reference image A copy is kept with DataRay and a copy accompanies the shipment Note that there can be both dead and bright pixels inevitable with microbolometers See the Defective Pixels Specification in Appendix B How to identify Damage Below is an example of a sensor with white burn areas plus a faint green left to right trail due to overexposure Such user damage is not covered by warranty and is not repairable If your beam is small you can continue to use the good areas of the sensor but using VSK in Auto mode may be difficult The good news is that the sensors if still available are replaceable at the factory You do not need to purchase a new camera Delta 1045 6 um Pixel 10691 15 556 Average of 20 WinCam FIR_Manual_supplement_1205a docx Page 4 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Operation 15 Press Go You will see a screen similar to that shown right The default settings put the Imager Gain to 4 75 and the VSK offset Auto adjust to off a Dele 7314 5 um Piel 7065 US f Clip a 13 5 View 1 lt Tilt 45 Eff 2W 8830 4 um ADC Peak 18 0 GFit 22 1 _lma ag zoom 1 2Wua i 13 5 6 14093 2 um 2Wva 13 5 amp 6037 3 um 2Wub
15. mD FIFR 2 16 Saturation Power Limits at 3 amp 10 6 um cw mW Gain 1 integration 65ms Mo filter 8575 of ADC r powers are possible with available accessories c j m 13 5 5 Beam Diameter in mm Damage threshold limits are approximately 20 times higher than the Saturation power limits WinCamD FIR Setup and Use Software Ver 7 1H21L or higher Warning Using any type of uncooled far IR camera is different from using a standard CCD camera 2 3 4 5 Like older plasma televisions but more so far IR bolometric cameras are susceptible to burn in damage because the damage threshold is close to the saturation threshold and to the working irradiance range Slight damage may anneal out but major burn in is irreparable DataRay keeps supplies a post calibration reference image with every FIR camera so that any subsequent damage is simply determined The range of offset and exposure adjustment is lower than CCD s so more care must be taken Never start a measurement unless you know that peak beam irradiance is 25 mW cm i e you have a calibrated power meter and an estimate of your beam diameter See Appendix A for some available meters and filters Cumulative exposure at high irradiance May cause burn in and permanently damage the detector We recommend the use of a shutter or some way to block the beam quickly and easily in order to limit burn in shading due to cumulative exposure Even below s
16. ng Operability specification The following specification is valid only within areas A amp B Clusters Areas A amp B Maximum cluster size 9 non operating pixels Rows amp Columns Area A 0 non operating row or column Area B lt 1 non operating rows amp x1 non operating columns Operability Areas A amp B 299 WinCam FIR Manual supplement 1205a docx Page 13 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA
17. ock the beam to reduce the possibility of burn in 30 Go File Save Save current data as wef 31 See or suspect a problem Send both files to Support dataray com Follow up with a call to 303 543 8235 WinCam FIR Manual supplement 1205a docx Page 7 of 13 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Powerful Beam Analysis Software Beam Wander on a drifting Laser Up to 8192 samples at a User Set interval Mean RMS and Max deviation Replay Fast or Slow Export to Excel Paint Bitmap or Clipboard Auto I nclusion Region on an Elliptical Beam Automatically isolates the appropriate analysis region With user overrides Delta 387 2 um Pixel 38441 58 77 Scale radius 30 um Samples taken 146 hax deviation 28 7 um Last deviation 18 3 um Mean 99um AMS 12 20 um 12 24 Time interval minimum Samples to be recorded 81327 Replay To ClipBaard Normalize Replay Fast Save az bitmap To Excel Sequence Off Export ta Paint ZW wa amp 13 5 3 641 mm Standard Linear Profile 2Vvb 50 0 5 amp 2 82 mm with Gaussian Fit oe 83 695 J G 2w 3 68 mm A emma cere coe ee es Ce Logarithmic Profile EET EO Averaging amp Log 40 dB a a SS SS NM display reveals structure pope in the wings of the beam lt at levels below 1 SSS ESS SS SS SS SS SS SE ss ee ee EE ee
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