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Falcon 4M Camera Manual

03-032-20044-03

Teledyne DALSA

3.4.2 Setting the Exposure Mode

Pu rp ose:

Sets the camera‘s exposure mod e allow ing you to control your
sync, exp osu re tim e, and fram e rate generation.

Syntax:

sem

Syntax Elem ents:

Exp osu re m od e to u se. Factory d efau lt setting is 2.

N otes:



Refer to the Exp osu re Mod es table below for a qu ick list of
available m od es or to the follow ing sections for a m ore
d etailed exp lanation.



To obtain the cu rrent valu e of the exp osu re m od e, u se the
com m and

gcp

Related Com m and s:

ssf

set

Exam p le:

sem 4

Exposure Modes

Mode SYNC

Programmable
Frame Rate

Programmable
Exposure Time

Description

Internal

Yes

Internal fram e rate and
exp osu re tim e.

External

N o

Sm art EXSYN C.

External

N o

Yes

EXSYN C p u lse controlling
the fram e rate.
Program m ed exp osu re
tim e.

Содержание 4M30

Страница 1: ...n 4M30 and 4M60 Monochrome and Color Camera Manual PT 41 04M60 XX R PT 42 04M60 XX R PT 21 04M30 XX R PT 22 04M30 XX R 4 Megapixel 30 60 fps Area Scan Cameras 3 Jun 11 03 032 20044 03 www teledynedals...

Страница 2: ...emiconductors with approximately 1 000 employees worldwide headquartered in Waterloo Ontario Canada Established in 1980 the company designs develops manufactures and markets digital imaging products a...

Страница 3: ...nnector 21 Software Interface How to Control the Camera __________________________________ 23 3 1 First Power Up Camera Settings 26 3 2 Saving and Restoring Settings 27 3 3 Camera Output Format 27 3 3...

Страница 4: ...Lens Mounts 66 4 3 Optical Interface 66 Troubleshooting________________________________________________________ 69 5 1 Common Solutions 69 5 2 Troubleshooting Using the Serial Interface 70 5 3 Specif...

Страница 5: ...l windowing for faster frame rate 7 4 m x 7 4 m pixel pitch 4 x 80 MHz or 2 x 80 MHz data rates Nominal broadband responsivity of 18 4 DN nJ cm 2 Good NIR response 8 or 10 bit selectable output Dynami...

Страница 6: ...inspection Flat panel display inspection Solar panel inspection Industrial metrology Traffic management General machine vision Models The Falcon 4M camera is available in the following models Falcon...

Страница 7: ...al Interface Notes Input Voltage 12 to 15 Volts 6 Power Dissipation 10 typ 14 Watts max Operating Temperature 0 to 50 C 1 Data Output Format 8 or 10 user selectable bits Output Data Configuration Base...

Страница 8: ...4 tap 10 bit sot 320 80 MHz camera link strobe efd 1 Snapshot mode 1 snd 1 Number of fast frame dumps 1 Light Source Broadband Quartz Halogen 3250K 3050 to 3450 with a 750 nm cutoff filter Ambient te...

Страница 9: ...lumn defects 0 Row defects 0 Definition of cosmetic specifications Hot pixel defect Pixel whose signal in dark deviates by more than 400 DN 10 bits from the average of all the pixels Single pixel defe...

Страница 10: ...ss defects 5 9 0 Definition of blemishes Glass defects A group of pixels exceeding the given cluster size and the maximum deviation from the mean Images are taken at nominal light illumination at 50 o...

Страница 11: ...he camera without lens The bottom of the camera has a 20 tripod mount Row 2 0 Tap 2 Column 235 Row 2 49 Tap 1 Column 23 Row 1 Column 1 Tap 1 Row 1 Column 2 Tap 2 Row 1 Column 3 Tap 3 Row 1 Column 2351...

Страница 12: ...2 Tap 4 Column 2352 Row 1 Column 2352 Tap 4 Row 1728 Column 1 Tap 1 Row 1728 Column 2 Tap 2 Row 1728 Column 3 Tap 3 Row 1728 Column 2349 Tap 1 Row 1728 Column 2350 Tap 2 Row 1728 Column 2351 Tap 3 Row...

Страница 13: ...se Gain 0 dB Fine Gain 45 0 5 10 15 20 25 300 400 500 600 700 800 900 1000 1100 Wavelength nm Responsivity DN nJ cm 2 Note Responsivity is calibrated w ith fcc on Figure 6 Effective Quantum Efficiency...

Страница 14: ...responsivity 3 colour sensors B blue R red G green 0 2 4 6 8 10 12 400 450 500 550 600 650 700 750 800 850 900 Wavelength nm Responsivity DN nJ cm2 Figure 8 Effective Quantum Efficiency Note We recom...

Страница 15: ...sting 75 G peak acceleration per MIL STD 810F The cameras meet the following Mean Time Before Failure MTBF specifications Ambient Temperature MTBF 40 C 65 000 hour 50 C 40 000 hours As shown MTBF is h...

Страница 16: ...Falcon 4M Camera Manual 03 032 20044 03 Teledyne DALSA 16...

Страница 17: ...agnostic LED If the camera is operating correctly the LED will flash for approximately 30 seconds and then turn solid green See 2 2 1 LED Status Indicator for a description of LED states You must also...

Страница 18: ...according to the pinout defined in section 2 2 3 Power Connector A common system problem is that the voltage drop across the power cable is large enough that the voltage at the camera does not meet t...

Страница 19: ...ary Configuration 8 Bit Ports Supported Serializer Bit Width Number of Chips Number of MDR26 Connectors Base A B C 28 1 1 Medium A B C D E F 28 2 2 BASE Configuration Port Definition Mode set with clm...

Страница 20: ...9 Xclk 6 21 Y3 6 21 X3 19 8 Y3 19 8 X3 7 20 100 ohm 7 20 SerTC 20 7 terminated 20 7 SerTC 8 19 Z0 8 19 SerTFG 21 6 Z0 21 6 SerTFG 9 18 Z1 9 18 CC1 22 5 Z1 22 5 CC1 10 17 Z2 10 17 CC2 23 4 Z2 23 4 CC2...

Страница 21: ...Center on our Web site here for the standard location of these signals Clocking Signal Indicates LVAL high Outputting valid line DVAL high Valid data STROBE rising edge Valid data FVAL high Outputting...

Страница 22: ...ng sup plied with much less voltage Use high quality linear supplies to minimize noise Use an isolated type power supply to prevent LVDS common mode range violation Note Performance specifications are...

Страница 23: ...uses a simple ASCII based protocol and the camera does not require any custom software Serial Protocol Defaults 8 data bits 1 stop bit No parity No flow control 9 6 Kbps Camera does not echo character...

Страница 24: ...always 9600 baud The rc reset camera command will not reset the camera to the power on baud rate and will reboot using the last used baud rate Example sbr 57600 Camera Help Screen For quick help the c...

Страница 25: ...rfs restore factory settings rpc reset pixel coefficients rus restore user settings sao set analog offset ti 0 0 0 511 sbr set baud rate m 9600 19200 57600 115200 sdo set digital offset ti 0 2 0 2048...

Страница 26: ...ation snapshot mode 1 number of fast frame dumps 1 Exposure mode 2 60 fps 9995 s exposure time Camera Link mode 16 Medium configuration 4 taps 10 bits 80 MHz pixel rate 320 MHz total throughput Full w...

Страница 27: ...saved user settings use the command rus Note on power up the camera will restore the FFC coefficients where csn is pointing to Example csn 1 and choose coeff set 1 wus rc or power cycle Coefficients f...

Страница 28: ...configuration 4M30 Data Readout Configurations Camera Link Mode Configuration Controlled by clm command Pixel Rate Configuration Controlled by sot command Command Camera Link Configuration Camera Lin...

Страница 29: ...320 80 MHz strobe clm 16 Medium 4 Camera Link taps where 1 Tap 1 2 Tap 2 3 Tap 3 4 Tap 4 10 sot 260 65 MHz strobe sot 320 80 MHz strobe 3 3 2 Setting the Camera Link Mode Purpose Sets the camera s Cam...

Страница 30: ...ice of operating in one of three exposure modes To select how you want the camera s frame rate to be generated 1 You must first set the camera s exposure mode using the sem command 2 Next if operating...

Страница 31: ...main benefit is that in non concurrent mode you eliminate or minimize imaging artifacts When possible operate the 4M60 camera in non concurrent mode A timing diagram helps to explain the non concurren...

Страница 32: ...to the Exposure Modes table below for a quick list of available modes or to the following sections for a more detailed explanation To obtain the current value of the exposure mode use the command gcp...

Страница 33: ...odate the new frame rate In reverse the frame rate is decreased if necessary when the exposure time entered is greater than the frame period Refer to Allowable Exposure Time Increments on page 36 for...

Страница 34: ...ble on page 36 for details on minimum exposure time increments for this mode Figure 14 Mode 4 Frame Time Frame Time Readout Time Readout Time Exposure Time Exposure Time User Exsync FVAL Mode 6 Extern...

Страница 35: ...in exposure mode 2 Allowable range is dependent on the current Camera Link mode snapshot mode number of fast frame dumps and window size Refer to section above for more information on Camera Link mod...

Страница 36: ...the exposure without warning Refer to Allowable Exposure Time Increments Changing the exposure time will automatically adjust the frame rate if necessary only for sem 2 The camera sends a warning whe...

Страница 37: ...e where exposure time overlaps frame readout 3 4 4 Enabling EXSYNC Debounce Circuit Purpose When enabled the camera does not respond to any pulses on the Exync input smaller than 1 s The camera ships...

Страница 38: ...ot Mode 1 performs a fast clearing of a frame concurrently with integration Thus any dark current that caused elevated dark offset levels FPN or hot pixels is cleared from the sensor prior to readout...

Страница 39: ...as 10 s at the expense of concurrent integration and readout Therefore it is recommended to only use Snapshot Mode 2 if your integration time must be below 500 s This is also the reason why Snapshot M...

Страница 40: ...ledyne DALSA 40 The following timing diagrams show how the timing changes when snapshot modes are enabled in sem 2 sem 2 Snapshot Mode 1 fast frame dump at falling edge of EXSYNC sem 2 Snapshot Mode 2...

Страница 41: ...setup to disable Snapshot Mode efd 0 and return the camera to the mode used prior to the introduction of Snapshot Mode Different snapshot modes will produce different FPN and possibly different PRNU...

Страница 42: ...w of interest is a subset of a full frame image that is desired as output from the camera Because the sensor is outputting only the designated window of interest the benefit is an increase in frame ra...

Страница 43: ...w Start End Command Purpose Sets a window of interest Syntax wse q i x1 y1 x2 y2 Syntax Elements q Window sequence id to use In this camera the sequence id is always 0 i Window to set You can only set...

Страница 44: ...uick activation of new window coordinates the camera allows you to preset one sequence of window coordinates These coordinates wait for a trigger and because they have been preprogrammed the new windo...

Страница 45: ...ely quickly This command loads a new window sequence Syntax wss m Syntax Elements m Window sequence trigger where changing from 0 to 1 or vice versa toggles the current window sequence being used Rela...

Страница 46: ...o bring each pixel to the required value target for flat white output Video output is set slightly above the brightest pixel depending on offset subtracted It is important to do the FPN correction fir...

Страница 47: ...saturation 6 Send cpa 2 T where T is typically 1 3X the average output level This is important since if the target is too low 1 1X then some pixels may not be able to reach full swing 1023 DN due to...

Страница 48: ...te to about 80 saturation 820 DN 10 bit and note the highest signal level among the set of cameras 4 Increase the digital gain ssg on the cameras until they all reach the same output level highest of...

Страница 49: ...other exposure mode will allow FFC calibration 2 Settings such as frame rate exposure time etc are set as close as possible to the actual operating conditions Set digital gain to x1 ssg 0 4096 and bac...

Страница 50: ...ient set number to use 0 2 Factory calibrated sets of FPN and PRNU coefficients These coefficients cannot be erased or modified 3 5 User calibrated sets of FPN and PRNU coefficients These coefficients...

Страница 51: ...The coefficient set that you are enabling or disabling is determined by the csn value Refer to the previous section for an explanation of the csn command Example epc 0 1 3 7 3 Selecting the Calibrati...

Страница 52: ...csn 0 2 You must select the user coefficient set csn 3 5 before you can perform FPN calibration An error message is returned if you attempt to perform FPN calibration when using csn 0 2 Example ccf C...

Страница 53: ...r is set to be greater than 1 2X than the average signal level when FPN correction is enabled EPC 1 0 This is to ensure that full signal swing can be reached for most pixels y Peak target value in a r...

Страница 54: ...than this was required and 4X is the maximum multiplier that can be used before 8 bit images start seeing missing codes 8X multipliers are used in color since in some cases the colors differ by more t...

Страница 55: ...is in practice this becomes unmanageable as there are over 4 million pixels Therefore coefficient optimization via this command is discouraged Example spc 10 50 500 3 7 6 Saving Loading and Resetting...

Страница 56: ...brated coefficients csn 0 2 You must select the user coefficient set csn 3 5 before you can reset pixel coefficients An error message is returned if you attempt to reset pixel coefficients when using...

Страница 57: ...s not equal an offset of 100DN Notes When flat field correction is enabled the expectation is that in the dark the signal level is 0 DN Some users might require a non zero dark output This can be achi...

Страница 58: ...ange is 1 to 4 or 0 for all taps 1 Red 2 Green Red 3 Green Blue 4 Blue i Subtracted value in a range in DN from 0 to 511 Notes When subtracting a digital value from the digital video signal the output...

Страница 59: ...r 0 for all colors 1 Red 2 Green Red 3 Green Blue and 4 Blue i Gain setting The gain ranges are 0 to 65535 The digital video values are multiplied by this value where D igital G ain i 4096 For example...

Страница 60: ...10 When all the PRNU coefficients are unified in gain the test pattern in svm will display this base level For example when tpv 127 is commanded the base level in svm 10 will be 127 DN In this case to...

Страница 61: ...and connections between the camera and the frame grabber The following table shows each available test pattern Syntax svm i Syntax Elements i 0 Live Video 1 Test pattern checkerboard One unique value...

Страница 62: ...Falcon 4M Camera Manual 03 032 20044 03 Teledyne DALSA 62 4 Test pattern horizontal ramp 8 bit 10 bit 5 Test pattern vertical ramp 8 bit 6 Test pattern diagonal ramp 8 bit 10 bit...

Страница 63: ...Manual Teledyne DALSA 03 032 20044 03 63 7 FPN test pattern Used by Product Support 8 bit 10 bit 8 FPN and PRNU test pattern Used by Product Support 8 bit 10 bit 9 Fixed at max test pattern 10 bit 102...

Страница 64: ...sn Note When switching the camera from video mode svm 0 to one of the test pattern modes svm 1 thru 8 the camera adjusts any digital gain ssg background subtract ssb and settings currently being used...

Страница 65: ...all models Please note For optimal camera performance the camera should be cooled by applying forced air flow or by attaching the camera to a heatsink If a heatsink is attached the optimal surface is...

Страница 66: ...edge Center page or our Web site here provide an introduction to this potentially complicated issue See Radiometry and Photo Responsivity and Sensitivities in Photometric Units in the CCD Technology P...

Страница 67: ...purposes using three primary points the first and second principal points and the second focal point The primary points for a lens should be available from the lens data sheet or from the lens manufa...

Страница 68: ...object and image plane parameters Example An acquisition system has a 512 x 512 element 10 m pixel pitch area scan camera a lens with an effective focal length of 45 mm and requires that 100 m in the...

Страница 69: ...this section first If these solutions do not resolve your problem see section 5 4 on getting product support 5 1 Common Solutions Connections The first step in troubleshooting is to verify that your c...

Страница 70: ...cuting this command send the gcp command to verify the factory settings Verify Timing and Digital Video Path Use the test pattern feature to verify the proper timing and connections between the camera...

Страница 71: ...cleaning tissue approx 3 x 5 to make a square pad that is approximately one finger width 5 Moisten the pad on one edge with 2 3 drops of clean solvent alcohol Do not saturate the entire pad with solv...

Страница 72: ...grabber host computer light sources etc Acquisition System software version OS etc Power supplies and current draw Data rate used Control signals used in your application and their frequency or state...

Страница 73: ...mera Link interface LVDS Technical Description Low Voltage Differential Signaling LVDS is a high speed low power general purpose interface standard The standard known as ANSI TIA EIA 644 was approved...

Страница 74: ...re use CC2 Reserved for future use CC3 Window Toggle CC4 Communication Two LVDS pairs have been allocated for asynchronous serial communication to and from the camera and frame grabber Cameras and fra...

Страница 75: ...AME PERIOD tTRANSFER tREADOUT tOVERHEAD Exposure Timing User Exsync Internal Exsync Exposure FVAL B4 A D C E Exposure Timing SEM 2 4 Note User EXSYNC not present in sem 2 User Exsync Internal Exsync E...

Страница 76: ...Falcon 4M Camera Manual 03 032 20044 03 Teledyne DALSA 76 User Exsync FVAL K F H1 LVAL H2 G J FVAL LVAL Timing L...

Страница 77: ...R 2 62 2Hz 60 4Hz 60 3Hz 31 1Hz 30 6Hz 30 6Hz 50 3Hz 49Hz 49Hz 25 2Hz 24 9Hz 24 9Hz Max Exposure 2 16051u 16530u 52u 32109u 32635u 32u 19850u 20377u 49u 39629u 40107u 31u twSYNC Internal Exsync to Int...

Страница 78: ...FR 2 62 2Hz 60 4Hz 60 3Hz 31 1Hz 30 6Hz 30 6Hz 62 2Hz 60 4Hz 60 3Hz 25 2Hz 24 9Hz 24 9Hz Max Exposure 2 16051u 16530u 52u 32109u 32635u 32u 16051u 16530u 52u 39629u 40107u 31u twSYNC Internal Exsync t...

Страница 79: ...ark current camera link mode clm m Output mode to use 2 Base configuration 2 taps 8 bit output 3 Base configuration 2 taps 10 bit output 15 Medium configuration 4 taps 8 bit output 4M60 only 16 Medium...

Страница 80: ...ters EXSYNC from the user to suppress any glitches less than 1us in width enable frame dump efd m Enables various snapshot modes EFD 0 snapshot mode disabled EFD 1 snapshot mode 1 FFD on falling edge...

Страница 81: ...rpc Resets the FPN and PRNU coefficients to 0 1 respectively restore user settings rus Restore the camera s last saved user settings Note this does NOT restore FFC coefficients use lpc for this set a...

Страница 82: ...e 130 160 260 and 320 set prnu coefficient spc xyi Set the PRNU coefficient Where xy falls in the range from 1 1 to 2352 1728 i PRNU value in the range 0 to 12287 set prnu multiplier spm m Sets the ma...

Страница 83: ...tpv i Sets the base value 63 127 255 for svm 10 A PRNU map results when this base value is multiplied by individual PRNU coefficients verify temperature vt Display the internal temperature of the cam...

Страница 84: ...and must belong to following set 1 5 9 1725 x2 is window end corner value Since there is only vertical window of interest in this camera this value is always set to 2352 y2 is window end pixel number...

Страница 85: ...und to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipme...

Страница 86: ...Falcon 4M Camera Manual 03 032 20044 03 Teledyne DALSA 86...

Страница 87: ...y page 17 Timing diagrams sem 2 4 and 6 revised page 33 RoHS and CE compliant information added 01 Added camera cosmetic blemish section page 10 Please note that the information in this section is con...

Страница 88: ...Falcon 4M Camera Manual 03 032 20044 03 Teledyne DALSA 88...

Страница 89: ...mode 29 outputs 21 Camera Link mode setting 29 30 camera settings current 27 factory 27 restoring 27 retrieving 26 saving 27 user 27 clock signals 21 coefficients 50 saving loading resetting 55 comman...

Страница 90: ...ounts 66 light sources 66 line dropout 70 line rate 7 LVAL 73 LVDS 73 pairs 74 M magnification 67 mechanical interface 65 specifications 7 mechanical interface 65 models 6 N noisy output 70 O offset 5...

Страница 91: ...41 modes 37 software interface 23 specifications electrical 7 mechanical 7 operating 7 optical 7 sensor 6 subtracting background 58 support 72 T Technical Sales Support 72 test pattern 61 generating...

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