Synchronization Timing; Synchronous Mode; Reset Mode - Teledyne TS-M4096 User Manual

Synchronization Timing

Genie TS supports two types of sensor synchronization used to align the exposure to sensor
timing:
 Synchronous Mode: Exposure is synchronous to the line timing of the sensor. Exposure time
steps are 1µs and the readout can be concurrent to the exposure for the fastest possible frame
rate.
 Reset Mode: Timing is reset to initiate exposure of the next frame. Exposure time steps are
1µs, but readout must be sequential to exposure, reducing the maximum achievable frame
rate.

Synchronous Mode

 Synchronous mode starts the exposure period aligned to the sensor horizontal line timing and
the programmable duration steps are 1µs.
 Exposure duration is from a camera sensor specific minimum (in µs) up to 16 sec.
 In this mode, sensor exposure and sensor readout of the previous frame's exposure occur
simultaneously. This allows operating the sensor up to its maximum frame rate.
 Any trigger received before the start of frame readout is ignored and generates an invalid
frame trigger event.
 Since the external trigger is asynchronous with the Genie horizontal line timing, the frame
exposure start is subject to 1 horizontal line jitter.

Reset Mode

 Exposure starts immediately after a valid trigger plus the possible exposure delay (see the
sensor specific performance specifications).
 Exposure time is user programmable or controlled by the trigger pulse width. Short External
Trigger timing must account for input signal propagation delays as specified in the external
input technical specifications.
 Minimum exposure is camera sensor specific (in µs) to a maximum of 16 seconds, in steps of
1µs. Exposures are never less then the specified sensor minimum even with a shorter trigger
pulse width.
 Sensor readout must complete before the next exposure can start. That is, exposure and
readout are sequential. Therefore, the maximum frame rate is lower than for Synchronous
mode.
 Any external trigger received before the previous exposure/read out sequence is completed, is
ignored.
Genie_TS_Series GigE Vision Camera
Operational Reference  57