Allied Vision Prosilica GS, Техническое руководство

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Prosilica GS Technical Manual V2.2.2
39
Camera interfaces
Trigger timing diagram
Notes on triggering
Figure 19: Prosilica GS 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)
Propagation delay ( t
pd
) 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 13: Explanation of signals in timing diagram
User trigger
Logic trigger
Exposure
Readout
Trigger ready
Imaging
Interline
Ɵ
me
Idle
t
pd
Trigger
latency
Exposure
start delay
Trigger
ji
Ʃ
er
Registered
exposure
Ɵ
me
Readout
Ɵ
me
N N+ 1
N N+ 1
Note: Ji
Ʃ
er at the beginning
of an exposure has no e
ī
ect
on the length of exposure.