User Manual

Camera trigger
AVT Prosilica GT Technical Manual V2.1.0
70
Trigger timing diagram
Notes on triggering
Figure 51: Prosilica GT internal signal timing waveforms
Term Definition
User trigger Trigger signal applied by the user (hardware
trigger, software trigger)
Logic trigger Trigger signal seen by the camera internal logic
(not visible to the user)
Tpd Propagation delay between the user trigger and
the logic trigger
Exposure High when the camera image sensor is integrating
light
Readout High when the camera image sensor is reading out
data
Trigger latency Time delay between the user trigger and the start
of exposure
Trigger jitter Error in the trigger latency time
Table 26: Explanation of signals in timing diagram
User trigger
Logic trigger
Exposure
Readout
Trigger ready
Imaging
Tpd
Trigger
latency
Interline time
Exposure
start delay
Trigger
jitter
Idle
Registered
exposure
time
Readout time
N N+ 1
N N+ 1
Note: Jitter at the
beginning of an exposur
e
has no eect on the
length of exposure.