WinCam FIR-HR Manual Supplement
Contents
1. 987 2 um Pixel 36441 58 77 Scale radius 30 um Samples taken 146 Mas deviation 28 7 um Last deviation 18 9 um Mean 99um AMS 12 20 um 12 24 Time interval minimum Samples to be recorded 8192 Replay To ClipBoard Normalize Replay Fast Save as bitmap To Excel Sequence Off Export to Paint AVilwa g 13 5 3 61 mm Standard Linear Profile 2Wvb 50 0 2 82 mm i 59 mm with Gaussian Fit Ei a26 G_2W 3 69 Oooo S S e S ee l S S Co a A O oka a a e ce Logarithmic Profile ET EO Averaging amp Log 40 dB a a SS SS display reveals structure SS SE ES Eee EE ee eee in the wings of the beam lt EE at levels below 1 SSS ES SS SS SS SS SS eS ss te ee L Ee ee r SE EEE Se eee ee ee a a G e aaa Scale 1100 0 um div Peak 95 2 B 1 2 WinCam FIR HR_Manual_Supplement_1305a docx Page 9 of 14 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 Fea2. 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 FIR Beam Profiling for Windows 7 Vista amp XP Features 17 um pixel pitch 640 x 480 pixels 12 24 x 8 16 mm I mage Area Silicon microbolometer Port Powered USB 2 0 flexible 3 m cable no power brick 0 90 24 mm thin 12 bit ADC 4 MB image buffer amp on board microprocessor gt 100 1 Signal to rms noise attainable Imager Gain range 16 1 10 1 ND absorbing screw on filter provided for 2 4 um No Chopper Required Measure Pulsed or CW Beams Room Temperature no cooling TE power required Applications euel Clip b MIR FIR laser profiling Field servicing of MIR FIR lasers and laser based systems Optical assembly amp instrument alignment Beam wander amp logging IMPORTANT lt 1i mW mm lt 100 mW cm LS saturation CW irradiance over wavelength r ADC Peak range at imager gain 1 See curve on Morn next page image zoom 1 a 302 4 um Pixel 0 0 0 Camera shown xactual size 2 40 x 2 65 x 0 90 x 1 10 with ND filter 61 x 67 x 22 mm Relative Power 0 00 Full Range 2 rigger off delay 0 000 ms Imager Gain 1 0 lt 7 os Exposure time 40 22 ms Auto ET onl otal 2Wva 13 5 5 56 mm
3. aa Minimize time that the camera spends in cale 1500 0 uml Peak 707 BH 140 cale 1200 0 umjdiv Peak 70 1 B T40 higher irradiance beams Long term over exposure can increase dark current 13 mW 2 3 um laser image Imager Gain 1 Normalized Spectral Response Limits vs A um Sensor AR coated Window Trans vs A um 100 100 80 80 60 60 40 40 20 Min 20 Max 0 0 123 4 5 67 8 9 10 11 12 13 14 15 16 2 3 4 6 7 8 9 10 11 2 13 14 15 WinCam FIR HR_Manual_Supplement_1305a docx Page 1 of 14 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Saturation 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 APPROXI MATE 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 page 4 CW mW Ss a eee se a CO es a S d S S G d o p N A TEE NI NV M T NIT N WON 0 1 N HIE WUN T NIC NCE CO UT TT TTT TE TTT INT TY TNT A M TE N d Nt 2 a ia a i A U AVA VUN T AT MN O za ae eS aa FT TT iaa a
4. re A Ft 13 5 Beam neater inmm Approximate Damage amp Saturation Limits Damage threshold limits are approximately 10 to 20 times higher than the Saturation power limits Minimum detectable signal level What is the minimum irradiance for a useful SNR with the WinCamD FIR2 16 HR Based on measurements on the 2 94 um laser we get excellent SNR around gt 50 at 13 mW on a 5 5 mm beam This is a peak irradiance of around 100 mW cm7 A noise level of around 1 to 2 mW cm At longer wavelengths the sensor responsivity should improve these numbers by a factor of 2 to 3 but we do not currently have specific measurements on this Using the slider you can increase total gain integration by a factor of around 16 This raises both signal and noise You can use averaging and background subtraction you may be able to see irradiance down below the 1 mW cm level but only a measurement will prove whether or not this is the case NEP NEP is a single element detector figure of merit We do not quote NEP for these sensor arrays WinCam FIR HR_Manual_Supplement_1305a docx Page 2 of 14 www dataray com 203 210 5065 DataRay Inc Bella Vista CA NETD The NETD for the sensor used is nominally lt 50 mK f 1 300K 30Hz LWIR under optimum conditions We do not measure NETD for these cameras WinCamD FIR2 16 HR Setup and Use Software Ver 7 1H24G or higher Warning Using any type of uncooled far IR camera is different from using a
5. sie gaia control ee TS ene o i THF n Ba e AN 16 Measure your estimated beam irradiance It must be lt 0 5 mW mm lt 50 mW cm Unscrew the plastic dust cap Peak irradiance of a Gaussian beam 2 6 x power diam Real life beams may be more peaky than this www dataray com 203 210 5065 WinCam FIR HR_Manual_Supplement_1305a docx Page 5 of 14 DataRay Inc Bella Vista CA 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 Imager Gain os eet ee 1 api E15 T mamenn eae apc Peak saon maps zoom A 2Wua 13 5 2Wub 50 0 pn EmO i Te E Soei i a Fe Toe MeN 18 Signal level too high If the I mager Gain is gt 1 use the middle slider to reduce the I mager Gain If the Imager Gain is fully to the left and you are still saturated immediately block the beam remeasure the power and reduce the irradiance See Appendix A for samplers and attenuators 19 The Integration slider has no effect on performance sensitivity It is varied as a part of the Imager Gain 20 Signal level too low Increase Imager Gain at the expense of signal to noise ratio 21 Examine the image I
6. W ZnSe 3 for unmounted wedges or FIR MW CAF2 3 FIR MW ZnSe 3 for a mounted wedge Damage threshold 50 W cm2 5J cm at 10 6 um 100 ns 1 Hz Reflectivity at 45 Two orthogonal wedges s p Ratio Av Ratio CaF2 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 HR_Manual_Supplement_1305a docx Page 12 of 14 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 center Beam ZnSe Primary amp secondary reflected beam separation separation vs distance 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 CaF2 10 6 um attenuators Stocked by DataRay as FIR CaF2 0D0 3 FIR CaF2 0D0 76 Damage threshold 50 W cm2 5 J cm at 10 6 um 100 ns 1 Hz WinCam FIR HR_Manual_Supplement_1305a docx Page 13 of 14 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 lt 0 8 x or gt 1 2 x average responsivity e It s NETD is gt 1 5 x average NETD defined in the related document A single non operating pixel is a non opera
7. in Appendix B Camera i Deha 1124 2 um Piel S698 1S 76 FIPS Average of 20 on 35 Za Ze Clip a 13 5 i Whew 1 Tin eli Centroid absolute E ai _ zwagis5 9o6sum va 13 5 8382 9 um 2Wub 50 0 8662 9 um 2Wvb 50 0 Seale 1750 0 wmfdiy Pook 15 5 6 11 5 Scale 1300 0 umidi Peak 17 10 B 115 WinCam FIR HR_Manual_Supplement_1305a docx Page 4 of 14 www dataray com 203 210 5065 DataRay Inc Bella Vista CA 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 16 67 y lefi i i ei ene Operation 15 Press Go You will see a screen similar to that shown below The default settings put the I mager Gain to 16 and the VSK offset Auto adjust to off Elli 0 00 Orient 23 0 deg Crosshair 157 0 deg Ye 3213 6 um ADC Peak 23 9 GFit 0 0 2Wua 135 101 5 um 2iiva i 13 5 0 0 wm 2 ub 50 0 21 0 um 2ivib i 50 0 0 0 um oe e 318C inicgrations nm mi r arabir
8. standard CCD camera 2 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 3 The range of offset and exposure adjustment is lower than CCD s so more care must be taken 4 Never start a measurement unless you know that peak beam irradiance is lt 0 5 mW mm lt 5 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 5 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 saturation at low Imager gain try to 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 expensiv
9. 10 5065 DataRay Inc Bella Vista CA ORDERING INFORMATION Limited 1 Year Warranty Free Software Upgrades 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 HR 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 gt 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 190 1800 nm BeamScope P8 100 microns to 23 mm M accessory ISO 11146 Standard Linear scanning slit CW or Pulsed PRR gt 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 4 places on rear 2 40 n5 A 290 WinCamD Series Sensor to cage 7 1405 m
10. an 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 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 pj dBm or user choice relative to a reference measurement input Fluence within user defined area 320 gm 11 oz Optional f 1 35 mm lens 320 gm 11 oz Minimum PC Requirements 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 HR_Manual_Supplement_1305a docx Page 10 of 14 www dataray com 203 2
11. d in a future release 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 28 Press Stop and block the beam to reduce the possibility of burn in 29 Go File Save Save current data as wef WinCam FIR HR_Manual_Supplement_1305a docx Page 7 of 14 www dataray com 203 210 5065 DataRay Inc Bella Vista CA 30 See or suspect a problem Send both files to support dataray com Follow up with a call to 303 543 8235 31 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 32 VSK Auto baseline adjust Right click on the words VSK offset bar enable it the box right No useful function in Ver 7 1H24K WinCam FIR HR_Manual_Supplement_1305a docx Page 8 of 14 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
12. e 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 FIR Calibrate Dialog x calibrated warning will appear Please enter or verify camera name If a xxxx yyyyyyyy uFir3_ cal file is provided on the CD copy it to 3552 65809010 the c Users Documents DataRay directory Go to Step 14 No results Press Start Calibration If no uFIR3 cal file is provided or if the software tells you to Camera bias voltages recalibrate go to Step 11 WSK 4 0t06 5 4 976 FID 2 5 to 3 6 3 001 11 Place the screw on cap on the camera or lens cap on optional lens Go for a break Return in five minutes after the camera has warmed up Required before camera calibration Recommended before ee normal use or if the camera temperature has changed In the Setup pull down menu choose Calibrate current Camera to o
13. m C Mount 1 4 20 1 0 32 UNC 2B 0 3 deep E O a N 0 20 0 2 65 2 475 1 020 0 175 O 1 10 0 70 0 WinCamD FIR2 16 HR Outline amp Mounting Shown actual size WinCam FIR HR_Manual_Supplement_1305a docx Page 11 of 14 www dataray com 203 210 5065 DataRay Inc Bella Vista CA Appendix A a non exhaustive list of related products 1 Power Meters for pW to W a Gentec eo XLP12 1S H2 DO with P Link USB interface uW 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 ND3 0 An ND2 0 is provided with every system Damage threshold 1 W cm 6 OD 5 4 NOL O NOZ 0 ND2 0 0 1500 2000 2500 3000 3500 4000 inm 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 FIR ND2 0 amp FI R ND3 0 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 CaF2 unmounted 25 mm diameter wedge beamsplitters Stocked by DataRay as FIR W CAF2 3 FIR
14. pen the FIR2 Calibrate Dialog WinCam FIR HR_Manual_Supplement_1305a docx Page 3 of 14 www dataray com 203 210 5065 DataRay Inc Bella Vista CA 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 Imager Gain steps from 1 00 to 16 After several seconds you will see the line Success re Start Seven f calibration appear in the dialog Press Save and exit 3 The calibration file is saved in c Users Documents DataRay directory as this example 3011 37422055 uFir3_cal If you move the camera to another PC either redo the calibration or also move the file Reference Image amp Damage 14 After calibration we take a Reference file at Imager Gain 16 and Average 20 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 The actual shade of blue will depend upon the ambient temperature and the most recent calibration Note that there can be both dead and bright pixels inevitable with microbolometers See the Defective Pixels Specification
15. s the black in the 2D area very black and or the profiles look as if they are diving through zero rather than smoothly blending into the baseline In the Average pull down menu select Average 2 or higher A requirement to be removed in a subsequent software release Reduce the VSK value until these are no longer a problem If you see the message right click Yes Camcen 12 hehe 8681 am Poel ge Le Ed PrE Clip b 50 0 Orient _ 0 6 deg _Centroid absolute ADC Peak 145 imager Gaa GFit 0 0 image zoom 1 2Wua 13 5 718 0 um Ziwa 13 5 i 375 0 um 2Wvb S00 eee TOM Deh SS C C CS COPC RO OM Bo E WinCam FIR HR_Manual_Supplement_1305a docx Page 6 of 14 Iioleter Woes 000 Ful lange 7 oer 19a made aes bal deer LENEE ae Ge Cele a DataRayOcx Q Normally should not be altered override aLi 91 0 um 329 0 um cited AE www dataray com 203 210 5065 DataRay Inc Bella Vista CA 22 Readout in mm Want to read beam diameter in mm rather than um Go to Setup and choose Numeric Display Modes Select XXX YY mm 23 Smooth a large 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
16. ting 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 160 x 120 pixels e Area B the peripheral 3 lines and columns e Area C the 640 x 480 area i e excluding areas A and B of the array 480 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 E g Cluster 3 is 3 adjacent pixels Non operating row A row is considered non operating if more than 50 of the pixels in this row are non operating Non operating column A column is considered non operating if more than 50 of the pixels in this column are no operating Operability Specification Area A AreaB AraC _ Custer3 4A O2 O 12 O Custer4 2 7 S 7 L ClsterS fF Cluster6 OF 3 3 Cluster OE 2 2 O a pete 9 Cluster 10 Guster 12 12 Guster 13 13 Custer 4 14 tne __ Column WinCam FIR HR_Manual_Supplement_1305a docx Page 14 of 14 www dataray com 203 210 5065 DataRay Inc Bella Vista CA
17. tures Digital serial link for EMI immunity Background capture and subtraction XY profiles and centroids Image amp Intensity Zoom Linear and logarithmic displays Linear and area filters Gaussian and Top Hat least squares fits Image Averaging 1 to continuous Ellipse Angle Major Minor Mean Diameters PC Or Mac Intel Operation 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 Measurement Fluence Weights Camera Head 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 Gaussi
18. um This is still 50 resolution elements across a 5 mm beam Want mainly to smooth the beam Use Area filter Beam 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 Small beam Use Area filter 1 amp separately hover over the 2D area amp the profiles and zoom in using the i button on the keyboard o to zoom out 24 When you have set Imager Gain irradiance and the options above appropriately you will arrive at something like this Camera l Deha S672 um Pixel 4 656 72 7 Average ef 20 T Clip a 13 5 View 0 Tim A5 Mean 713 3 um Ellip 0 39 Crosshair 179 5 deg itroid absolute SK ofset ShA mV modified i sntroit ADC Peak 139 2 imager Gain 1 ETE gt l Infegration nat user settable ase galm control Tm f27 0 um 2Wvva 13 5 te 713 7 um 269 2 um D 30 0 vo Seale 375 0 T Penk i e oy B Oo a Scale 00 0 umidi Prak 71 7 w 00 fe 25 Optionally in the Average pull down menu set e g Average 20 26 Background Subtraction may be implemented as 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 pressing OK Block beam and press OK 27 L Normalize Not working on release 7 1H24K to be correcte
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