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Linea HS Series Cameras
Linea HS Series Camera User's Manual
Linea HS Dark Current
Dark signal increases with both temperature and line time.
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Increases linearly with the sensor exposure time:
1 / (Line rate) * (number of TDI Stages.)
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Increases exponentially with temperature, doubling approximately every 7°C.
For best performance Teledyne DALSA recommends recalibrating the dark flat field coefficients
(FPN) at a stable operating temperature; for more information of flat field correction, refer to the
Image Response Uniformity & Flat Field Calibration section.
Note:
A minimum line rate of 10 kHz is recommended.
When using low line rates active cooling of the sensor is recommended to avoid
offset drift due to minor temperature fluctuations.
Figure 13. Typical Dark Signal vs. Line Rate
