Pco Edge 3.1, Руководство пользователя

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18
FPS based (only edge 5.5 Camera Link)
The camera optimizes the image recording to achieve as close as
possible the frame rate with chosen exposure time.
Only for Auto Sequence trigger mode and only available with
Camera Link Interface.
Set the frame rate first. If the time required for the image readout is
longer than 1 / frame rate, then the frame rate will be reduced to
1 / t
readout
. Minimum frame rate is 1 / max. exposure time.
The frame rate can be adjusted in steps of 1 mHz (Global Shutter).
If the selected exposure time would require a lower frame rate, the
exposure time is cut to the maximum possible time at that frame rate.
Camera Frame rate (FPS Based) Exposure time
pco.edge 5.5
Camera Link
10 … 50 fps @ 286 MHz 10 µs … 100 ms
External Exposure Start
(Auto Sequence respectively)
Name # of lines
t
jit
line time
1
t
frame
ROI(y) ∗ 𝑙𝑙𝑙𝑙𝑙𝑙𝑙𝑙 𝑡𝑡𝑙𝑙𝑡𝑡𝑙𝑙
2
t
exp
Programmable:
1 line time
1
… 100 ms
t
delay
(system)
(
t
frame
– t
exp
)
t
if
line time
1
1 line time
→
see 1.2
The listed parameters can be read out via SDK function
PCO_GetImageTiming dependent on the selected ROI. See pco.sdk
manual.
NOTE
If t
exp
< t
frame
system
delay (t
delay
) is added
before exposure
starts.