Home

Previous

Up

Next

MultiCam Boards Documentation > MultiCam Documentation > MultiCam User Guide > The Channel Class > Understanding the Rate Converter > Programming the Exposure Time > Feedback Parameter

Feedback Parameter

The MultiCam parameter TrueExp_us can be used to get the effective exposure duration resulting from the combination of the control parameters Expose_us and ExposeTrim.

The exposure time is expressed in microseconds (10-6 s).

A very special care should be taken to avoid to program the exposure time to a value causing a line period limitation.

More specifically, if the exposure time is longer than the readout process duration, the gap between two successive trigger pulses cannot be shorter than the exposure duration.

This situation could happen in the case when the trigger pulses are generated from an external system trigger pulse (external line triggering or rate converted-based triggering). If the trigger pulse rates becomes too large, the line protection mechanisms will enter into action.