Troubleshooting and performance
134
Alvium USB Cameras User Guide V3.1.3
Black level compensation for certain sensors
Because the PYTHON 480 sensor does not have a dark current compensation,
Alvium 1800 U-050m/c
cameras have a typical black level value drift, depending
on exposure time and
DeviceTemperature
(measured at the mainboard). The
black level compensation adjusts this effect as shown in
Table 59
.
Should additional compensation be needed, we recommend cooling the camera.
Temperature [°C]
ExposureTime [ms]
1
10
50
100
250
500
750
1,000
35
40
45
50
55
60
65
70
75
Full compensation
Basic compensation
Table 59: Exposure time and temperature affecting black level compensation