Pco dicam C1, Руководство пользователя

Страница: 21 / 64

21
7 TIMING PCO.DICAM C4
7.2 SINGLE IMAGE MODE 4 CHANNELS
Now that the functionality of a single channel has been explained, the
interaction of all four channels of a pco.dicam C4 will be explained.
For typical ultra-speed applications the pco.dicam C4 is operated in
‘burst’ mode; i.e. the four images are recorded within a few
microseconds or even less, the necessary readout of the four images
causes a gap of at least 9.5 ms of ‘dead time’ until the next four
image ‘burst’ can be captured.
This ‘burst’ mode can be configured by setting up and triggering
each channel individually or more comfortably by using the
Common
Time Properties
(see chapter
9.1
) and a single
Master Trigger
input
(see rear panel A2.4 ).
Example: Timing Diagram
This diagram shows a single four image burst using Master Trigger .
Explanation
•
Exposure Trigger
•
Fixed Intrinsic Delay
o
Typical values for 4 ns / 10 ns exposure time: 50 ns
o
Typical value for
≥
20 ns exposure time: 70 ns
(See pco.final test sheet of your camera for precise
values)
o
For electrical Master Trigger additional delay: 10 ns
o
For optical Master Trigger additional delay: 15 ns
• Selectable Start Delay
•
Exposures of all 4 channels
Note that the type and length of the trigger cable can add extra delay.
NOTICE