Sensor settings

As shown in the sensor manual on page 23, the parameters of the line scan sensor can be controled via a serial interface over CamLink directly from within the framegrabber software.

A simple get-camera-parameters gcp command will show the currently active settings on the sensor. Below is a dump the settings currently active on Splicer. The Analog Gain might be reduced in the future when brigher lights are used during sampling.

The Exposure Time parameter is often changed throughout the process of image creation. While 3200 uSec results in the brightest possible image, it requires the feedrate within LinuxCNC to be reduced to 25%. Otherwise there is a risk of dropped lines. During early development of the image, the exposure time is often reduced to 1500 uSec or lower. Send a set-exposure-time set 1500 to reduce the exposure time to 1500 uSec.

OK>gcp

G E N E R A L   C A M E R A   S E T T I N G S:

Camera Model No.:               P2-49-08K40
Camera Serial No.:              11021680
Sensor Serial No.:              000000000
Camera Network ID:              0
Network Message Mode:           disabled

Firmware Design Rev.:           03-39-00475-02 Mar 27 2007
DSP Design Rev.:                1.4

SETTINGS FOR UNCALIBRATED MODE:

Analog Gain (dB):               +7.0    +7.5    +7.5    +7.0    
Analog Offset:                  475     539     601     514    

SETTINGS FOR CALIBRATED MODE:

Analog Gain (dB):               +0.0    +0.5    +0.5    +0.0    
Analog Offset:                  0       0       0       0      
Digital Offset:                 0       0       0       0      
Calibration Status:             FPN [uncalibrated] PRNU [uncalibrated]

SETTINGS COMMON TO CALIBRATED AND UNCALIBRATED MODES:

System Gain:                    0       0       0       0      
Background Subtract:            0       0       0       0      

Pretrigger:                     0      
Number Of Line Samples:         64     
Video Mode:                     calibrated
Data Mode:                      0      
Exposure Mode:                  6      

SYNC Frequency:                 external (SYNC not detected) Hz
Exposure Time:                  3200.000 uSec

End-Of-Line Sequence:           on
Upper Threshold:                255    
Lower Threshold:                0      
Region Of Interest:             0001 - 8192


WARNING: External SYNC not detected