
External Trigger Level-controlled Exposure
•Also known as “Pulse Width Control” exposure. See the timing diagram below.
•The external trigger edge initiates the exposure process. The active external trigger edge can be selected as either the
•No delay from active trigger edge to start of exposure.
•Exposure is stopped by the opposite edge on the trigger signal. Therefore the exposure time is defined by the trigger pulse duration.
•Supports "Reset Mode" on page 47 trigger timing only.
External Trigger
Exposure Controls via Sapera LT or GenICam Applications
Sapera
Genie Sapera parameters for Exposure Control:
FrameRate = 0.1 Hz up to max. frame rate supported by sensor in current mode of operation. Only available with Trigger disabled.
ExposureMode = {Programmable = 1, Pulse Controlled = 2} ExposureTime = Exposure duration in µs
In CamExpert, these parameters are available under “Sensor” tab. See "Accessing Features with Sapera++ LT" on page 68.
GenICam features for Exposure Control:
ExposureMode = {Off = 0, Timed = 1, TriggerWidth = 2, TriggerControlled = 3, ResetContinuous = 4}
ExposureTimeRaw = Exposure duration in µs
AcquisitionFrameRate = Controls the desired frame rate of the camera in mHz (0.001 Hz). Only available when trigger is disabled.
AcquisitionFrameCount = Number of frames to be acquired in MultiFrame acquisition mode AcquisitionMode = {Continuous = 0, SingleFrame = 1, MultiFrame = 2} AcquisitionStart = Start image capture using currently selected acquistion mode AcquisitionStop = Stop image capture
AcquisitionAbort = Abort image capture
Genie Monochrome | Operational Reference • 45 |