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9 – Infrared Primer

A6700sc/A6750sc User’s Manual

59

6.

Paljak, Pettersson: Thermography of Buildings, Swedish Building Research Institute,
Stockholm 1972.

7.

Vlcek, J: Determination of emissivity with imaging radiometers and some emissivities at l ~ 5
mm. Photogrammetric Engineering and Remote Sensing.

8.

Kern: Evaluation of infrared emission of clouds and ground as measured by weather satellites,
Defence Documentation Center, AD 617 417.

9.

Ohman, Claes: Emittansmatningar med AGEMA E-Box. Teknisk rapport, AGEMA 1999.
(Emittance measurements using AGEMA E-Box. Technical report, AGEMA 1999.)

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Содержание A6700sc

Страница 1: ...to a dual use product controlled for export by the Export Administration Regulations EAR Diversion contrary to US law is prohibited US Department of Commerce authorization is not required prior to exp...

Страница 2: ...A6700sc A6750sc User s Manual 2 FLIR Systems Inc 9 Townsend West Nashua NH 03063 Support 1 800 GO INFRA 800 464 6372 http flir custhelp com Service 1 866 FLIR 911 www flir com 2015 FLIR Systems Inc...

Страница 3: ...oller 13 5 1 1 Single Preset Mode 13 5 1 2 Superframing Mode A675xsc only 13 5 2 Menu Bar 14 5 2 1 Tools Menu 14 Advanced Time Controls 14 5 2 2 Help Menu 15 5 2 3 Status Page 15 5 2 4 Setup Page 16 5...

Страница 4: ...and Features 39 7 4 Analog Video 40 7 5 Performance Characteristics 40 7 6 Non Uniformity Correction 41 7 7 Detector FPA 41 7 8 General Characteristics 42 8 MAINTENANCE 43 8 1 Camera and Lens Cleanin...

Страница 5: ...A6700sc A6750sc User s Manual 5...

Страница 6: ...Revision History Version Date Initials Changes 1 08 26 13 RM Initial Release 2 08 27 13 RM Added 2D drawings corrections 3 11 21 13 RM Corrections to specifications section 4 11 05 14 RM Removed ITAR...

Страница 7: ...ly 29402 500 Laboratory calibration plate 261 0005 00 Water resistant transit case 24043 000 Documentation CD 24048 050 2 2 System Overview The A6700sc infrared camera system has been developed by FLI...

Страница 8: ...with frame rates up to 4kHz Presets Up to four presets and their associated parameters such as integration time frame rate window size and window location are available for instant selection with a s...

Страница 9: ...using the internal flag based on a change of an internal temperature sensor and or a timer Standard Lens Interface The A6700sc camera uses the same bayonet mount as other SCx000 series cameras Howeve...

Страница 10: ...s Refer to Chapter 7 for lens cleaning Operating the camera outside of the specified input voltage range or the specified operating temperature range can cause permanent damage The camera is not compl...

Страница 11: ...witch LED will light when power is ON 2 Ready Light LED will turn on when camera is booted 3 Cold LED LED will light when FPA temp is 80K 4 Gigabit Ethernet RJ45 Connect to a PC for digital IR image d...

Страница 12: ...e Composite video on a monitor connect the provided BNC cable from the VIDEO port to your monitor If you are powering up the camera for the first time the camera should produce a 640x480 image with No...

Страница 13: ...nected to the camera a mini controller will be visible in the left pane This controller will have basic controls for the most commonly used settings like integration time frame rate preset selection a...

Страница 14: ...with the state however if the NUCs are changed deleted or renamed the state may not be able to load the NUCs 5 2 1 Tools Menu Set Camera Time to PC Time Sets the camera RTC clock to the time from the...

Страница 15: ...umber If the controller is connected to a camera a list will be displayed that shows all versions of software and firmware in the camera The Save button allows the user to create a text file with this...

Страница 16: ...nually enter integration time scroll to bottom of list and select no factory calibration 2 Frame Rate Enter the desired frame rate in Hz 3 Superframing A6750sc only When this is enabled the user can t...

Страница 17: ...eo Internal The frame sync is generated internally to run at the frequency set by the user External The frame sync is generated externally through the Sync In connect on the camera rear chassis Video...

Страница 18: ...time frame rate and frame sync mode The A6750sc supports two Frame Sync Modes Frame Sync Starts Integration FSSI and Frame Sync Starts Readout FSSR FSSI and FSSR determine which phase of the frame ge...

Страница 19: ...ays operates in IWR mode This mode can be used with either internal or external frame sync at full frame rates Frame 1 Data Frame 1 Integration Frame 2 Integration Frame Sync Frame Sync Frame 2 Data F...

Страница 20: ...ra rear chassis Video The frame sync is generated from a external video source connected to the Gen Lock In connector on the camera rear chassis Trigger Sources Internal The trigger is generated inter...

Страница 21: ...lay Allows for the user to set a delay sec for the external sync See timing diagrams below Polarity The sync is edge triggered Allows for the camera to use the rising or falling edge Trigger In Delay...

Страница 22: ...or low 5 2 5 Correction Page The Correction Tab contains all the controls needed to manage the on camera NUCs On camera NUCs are stored in two types of memory RAM memory This type of memory is used to...

Страница 23: ...eo data Apply NUC to Digital output GigE CameraLink Displays all pixels marked as bad as white dots on both the analog and digital outputs When enabled the camera will automatically drop the internal...

Страница 24: ...e NUCs stored in non volatile flash memory Changes here will persists through a camera power cycle For example if you rename a NUC here and do not update the NUC loaded into RAM and the camera state t...

Страница 25: ...The option will not affect NUCs that are currently loaded into RAM only those NUCs that are subsequently loaded from Flash memory Unless a new state is saved these override settings will not be remem...

Страница 26: ...the NUC source Because the flag is not temperature controlled it can only be used for 1 point and Offset Update NUC functions External Blackbody Use an external blackbody as the NUC source Program wi...

Страница 27: ...f the NUC is poor and you want to abort click Discard NOTE It is possible for a bad pixel to fail more than one category so the total bad pixels may be less than the sum of each category Factory bad p...

Страница 28: ...ection Process A One Point Correction Process requires one uniform source which is typically in the middle of the usable range The One Point Correction replaces all gain coefficients in the NUC table...

Страница 29: ...when a Two Point NUC table is being used An Offset Update requires only one uniform source usually set at a temperature on the lower edge of the operational range 5 2 5 1 4 Bad Pixel Correction Withi...

Страница 30: ...termine by the One Point Correction because those tables have a value of one 1 as the gain coefficients The Twinkler test can be done on either correction process The A6700sc uses two algorithms for b...

Страница 31: ...0x480 30Hz interlaced color based on Palette selection Note top and bottom 16 lines are truncated when full images are displayed The Analog window can be adjusted 16 rows using the Setup Window Tab PA...

Страница 32: ...ted to analog These controls don t tend to have as much effect as the controls that are applied to the digital side before the video encoder Corrected Data Uncorrected Data Mux Plateau Scalar Linear S...

Страница 33: ...out the PE algorithm It is very aggressive It can pull detail out of very low contrast imagery It can also pull out some very low level NUC and FPA artifacts and noise if the contrast is low enough Th...

Страница 34: ...6 Interfaces A6700sc A6750sc User s Manual 34 6 Interfaces 6 1 Mechanical dimensions in inches Figure 6 1 Front view of A6700sc Figure 6 2 Side view of A6700sc with 50mm lens...

Страница 35: ...6 Interfaces A6700sc A6750sc User s Manual 35 Figure 6 1 Bottom view of A6700sc...

Страница 36: ...s are Input voltage range 100 250VAC 50 60Hz Current draw 24 VDC at up to 4 0 amps input to the camera Converter dimensions 6 25 inches x 3 5 inches x 2 75 inch L x W x H Converter weight approximatel...

Страница 37: ...nc In The Sync In can be selected by the user to operate as an external clock It is a rising edge LV CMOS signal 5 5V max The minimum width is 160nS 6 1 3 3 Video Composite video out BNC connector Use...

Страница 38: ...GPIO IN BNC 6 INPUT Sets bits in image header Updated at 1Hz rate 7 Reserved BNC 7 8 TRIGGER BNC 8 INPUT External trigger Can be used by ResearchIR to start recording 9 Reserved BNC 9 10 SYNC IN BNC 1...

Страница 39: ...h integral forced air heat exchanger Mechanical Interface 2 two 20 tripod screws 1 one 3 8 16 professional tripod screw 4 four 10 24 mount holes 7 2 Windowing Capacity Window Sizes 640x512 320x256 160...

Страница 40: ...ed Corrected AGC Selectable DDE Plateau based equalization Linear equalization AGC Filter User controlled damping factor User controlled update rate Overlay Available on analog output Palettes Selecta...

Страница 41: ...Replacement Update Offset recalculates offset using current gain NUC Source Internal Ambient flag for 1 pt and offset update only External Any user supplied source which covers entire FOV Bad Pixel Re...

Страница 42: ...cover Weight 5 lbs not including lens or lens cover Temperature Operating Storage 40C to 50C 55C to 80C Shock 40 g s 11 msec half sine pulse Vibration 4 3 g s RMS random vibration all three axes Humid...

Страница 43: ...g is deemed necessary the methods herein are accepted industry standards and should yield good results Before you BEGIN Identify the type of optic to be cleaned Is it hard or soft material Is it coate...

Страница 44: ...orking from edge to edge across the optic Recommended Solvents Material Solvent Fused Silica 1 2 3 4 Zinc Selenide 1 2 4 BK 7 1 2 3 4 Zinc Sulfide 1 2 4 Optical Crown Glass 1 2 3 4 Sapphire 1 2 3 4 Ze...

Страница 45: ...ervation Herschel was soon convinced of the necessity of setting up a systematic experiment with the objective of finding a single material that would give the desired reduction in brightness as well...

Страница 46: ...and curved mirrors Fortunately this proved to be true only until 1830 when the Italian investigator Melloni made his great discovery that naturally occurring rock salt NaCl which was available in larg...

Страница 47: ...ns and flying torpedo guidance An infrared search system tested during this period was able to detect an approaching airplane at a distance of 1 5 km 0 94 miles or a person more than 300 meters 984 ft...

Страница 48: ...R 5 Microwaves 6 Radiowaves Thermography makes use of the infrared spectral band At the short wavelength end the boundary lies at the limit of visual perception in the deep red At the longwavelength e...

Страница 49: ...l cavity with a suitable heater it becomes what is termed a cavity radiator An isothermal cavity heated to a uniform temperature generates blackbody radiation the characteristics of which are determin...

Страница 50: ...mum at a wavelength max and after passing it approaches zero again at very long wavelengths The higher the temperature the shorter the wavelength at which maximum occurs Figure 8 8 Blackbody spectral...

Страница 51: ...m temperature 300 K the peak of radiant emittance lies at 9 7 m in the far infrared while at the temperature of liquid nitrogen 77 K the maximum of the almost insignificant amount of radiant emittance...

Страница 52: ...lackbody radiators and blackbody radiation have been discussed However real objects almost never comply with these laws over an extended wavelength region although they may approach the blackbody beha...

Страница 53: ...rce distinguished by the ways in which the spectral emittance of each varies with wavelength A blackbody for which 1 A graybody for which constant less than 1 A selective radiator for which varies wit...

Страница 54: ...plastic material When the plate is heated radiation generated within its volume must work its way toward the surfaces through the material in which it is partially absorbed Moreover when it arrives a...

Страница 55: ...r a fairly true description of the real conditions What has been neglected could for instance be sun light scattering in the atmosphere or stray radiation from intense radiation sources outside the fi...

Страница 56: ...hin the halfsphere seen from a point on the object surface This is of course sometimes a simplification of the true situation It is however a necessary simplification in order to derive a workable for...

Страница 57: ...asurement cases and compare the relative magnitudes of the three radiation terms This will give indications about when it is important to use correct values of which parameters The figures below illus...

Страница 58: ...eters 0 88 Trefl 20 C 68 F Tatm 20 C 68 F 9 4 Emissivity tables This section presents a compilation of emissivity data from the infrared literature and FLIR Systems own measurements Table 8 1 T Total...

Страница 59: ...y with imaging radiometers and some emissivities at l 5 mm Photogrammetric Engineering and Remote Sensing 8 Kern Evaluation of infrared emission of clouds and ground as measured by weather satellites...

Страница 60: ...0 2 0 3 1 Aluminum polished 50 100 T 0 04 0 06 1 Aluminum polished sheet 100 T 0 05 2 Aluminum polished plate 100 T 0 05 4 Aluminum roughened 27 3 m 0 28 3 Aluminum roughened 27 10 m 0 18 3 Aluminum...

Страница 61: ...ick Dinas silica refractory 1000 T 0 66 1 Brick Dinas silica unglazed rough 1000 T 0 80 1 Brick firebrick 17 SW 0 68 5 Brick Fireclay 20 T 0 85 1 Brick fireclay 1000 T 0 75 1 Brick fireclay 1200 T 0 5...

Страница 62: ...Rough 17 LLW 0 97 5 Concrete Walkway 5 T 0 974 8 Copper commercial burnished 20 T 0 07 1 Copper electrolytic carefully polished 80 T 0 018 1 Copper electrolytic polished 34 T 0 006 4 Copper Molten 11...

Страница 63: ...ples 70 SW 0 95 0 97 9 Gypsum 20 T 0 8 0 9 1 Ice See Water T Iron cast Casting 50 T 0 81 1 Iron cast Ingots 1000 T 0 95 1 Iron cast Liquid 1300 T 0 28 1 Iron cast Machined 800 1000 T 0 60 0 70 1 Iron...

Страница 64: ...2 Iron and steel Polished 400 1000 T 0 14 0 38 1 Iron and steel polished sheet 750 1050 T 0 52 0 56 1 Iron and steel rolled freshly 20 T 0 24 1 Iron and steel rolled sheet 50 T 0 56 1 Iron and steel...

Страница 65: ...4 Lead red powder 100 T 0 93 1 Leather Tanned T 0 75 0 80 1 Lime T 0 3 0 4 1 Magnesium 22 T 0 07 4 Magnesium 260 T 0 13 4 Magnesium 538 T 0 18 4 Magnesium Polished 20 T 0 07 2 Magnesium powder T 0 86...

Страница 66: ...00 650 T 0 52 0 59 1 Nickel oxide 1000 1250 T 0 75 0 86 1 Oil lubricating 0 025 mm film 20 T 0 27 2 Oil lubricating 0 050 mm film 20 T 0 46 2 Oil lubricating 0 125 mm film 20 T 0 72 2 Oil lubricating...

Страница 67: ...Paper white 3 different glosses 70 SW 0 76 0 78 9 Paper white bond 20 T 0 93 2 Paper Yellow T 0 72 1 Plaster 17 SW 0 86 5 Plaster plasterboard untreated 20 SW 0 90 6 Plaster rough coat 20 T 0 91 2 Pl...

Страница 68: ...an 32 T 0 98 2 Slag Boiler 0 100 T 0 97 0 93 1 Slag Boiler 200 500 T 0 89 0 78 1 Slag Boiler 600 1200 T 0 76 0 70 1 Slag Boiler 1400 1800 T 0 69 0 67 1 Snow See Water Soil Dry 20 T 0 92 2 Soil saturat...

Страница 69: ...gsten Filament 3300 T 0 39 1 Varnish Flat 20 SW 0 93 6 Varnish on oak parquet floor 70 LW 0 90 0 93 9 Varnish on oak parquet floor 70 SW 0 90 9 Wallpaper slight pattern light gray 20 SW 0 85 6 Wallpap...

Страница 70: ...8 9 Wood planed oak 70 SW 0 77 9 Wood plywood smooth dry 36 SW 0 82 7 Wood plywood untreated 20 SW 0 83 6 Wood white damp 20 T 0 7 0 8 1 Zinc oxidized at 400 C 400 T 0 11 1 Zinc oxidized surface 100 1...

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