18
6.3.3
SENSOR CONTROL
Sensor Control allows controlling of all sensor specific settings.
Double Image / Doubleshutter
This feature is widely used for particle image velocimetry (PIV)
measurements and is an standard feature of the pco.ultraviolet.
The first exposure time t
exp1
may be any exposure time of the
available range of the pco.ultraviolet camera. The second
exposure time t
exp2
can not be directly adjusted. The length of
the second exposure is exactly the readout time t
readA
of the first
image. The interframing time t
itf
denotes the transition time
between end of exposure #1 and start of exposure #2. Readout
times t
readA
and t
readB
are exactly the same. See also appendix
While recording in Double Shutter mode, Camware will
automatically
split the view window
and always shows both
images side by side.
Double Shutter timing
t
td
: trigger acknowledge delay
t
id
: intrinsic delay
t
exp1
: exposure time 1
st
image
t
readA
: readout time 1
st
image
t
exp2
: exposure time 2
nd
image
t
readB
: readout time 2
nd
image
t
itf
: interframing time
trigger
busy
exposure
t
read B
t
id
t
td
t
exp1
t
exp2
t
itf
t
read A
1
24 MHz
t
td
+ t
id
5.8 µs
t
exp
1 µs … 60 s
t
read
140 ms (@ full resolution)
t
itf
1 µs
1
2
3
2
4
Summary of Contents for ultraviolet
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