Balluff - BVS CA-MLC / BVS CA-IGC Technical Documentation
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The CMOS sensors used in BVS CA-MLC/-IGC cameras support the following trigger modes:
Continuous
OnDemand
(software trigger)OnLowLevel
OnHighLevel
OnHighExpose
(only with some sensors)If an external trigger signal occurs (e.g. high), the sensor will start to expose and readout one image. Now, if the trigger signal is still high, the sensor will start to expose and readout the next image (see Figure 1, upper part). This will lead to an acquisition just like using continuous trigger.
If you want to avoid this effect, you have to adjust the trigger signal. As you can see in Figure 1 (lower part), the possible period has to be smaller than the time an image will need (texpose + treadout).
OnHighLevel:
OnLowLevel:
OnHighExpose
OnHighLevel
, however, the exposure time is used like the high time of the signal.