Pco dicam C1, Руководство пользователя

Страница: 30 / 64

30
9.1.1 SINGLE IMAGE MODE
How to configure the timing for all channels in single image mode
with
Common Time Properties is explained in this chapter. This
mode is recommended for the pco.dicam C4 for the most
common application scenario where 4 identical exposure times
shall be equidistantly positioned on the time line corresponding to
a constant fps.
Only configure the four parameters accessible under
Common
Time . Do not adjust individual channel settings ( Camera
Timing ), because if you change any value, the Common Time
mode will be deactivated.
You just have to set
Start Delay , Exposure time and Trigger
Related Absolute
/
Relative
(only one of the two values has to be
set, the other one is calculated automatically). The resulting
settings for the four channels are calculated by pco.camware and
displayed under
Camera Timing .
The
Timing Overview
shows schematically one time line
per channel with the position of the actual exposure relative to the
time lines of the three other channels.
Trigger Related Frame Delay
The offset of the exposure start of the channels, i.e. the delay
between the individual channels in the
Timing Overview
is
adjustable in two ways:
Trigger Related Absolute Frame Delay defines the time
difference between the beginning of the exposure time on one
channel and the beginning of the exposure time on the next
channel. The minimum value is zero if all four exposure times start
simultaneously.
Frame Delay Absolute
is displayed in light green
as 1xFD, 2xFD, 3xFD .
Trigger Related Relative Frame Delay (light green ) indicates the
time interval between the end of the exposure time on one channel
and the start of the exposure time on the next channel.
It can be zero or negative if consecutive exposure times are back to
back or overlap.
The following times are the minimum values in
Single Image mode:
•
exposure time: 4 ns
•
frame delay absolute: 0 ns (i.e. all 4 exposures start at the
same time)
•
frame delay relative: – 4 ns (i.e. all 4 exposures start at the
same time)
Valid for 4 ns exposure time; the frame delay relative time can be less
than the -4 ns, if the exposure time is longer.
1
1
2
3
2
1
3
3
2