Pco pixelfly usb - Sensor Control

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6.3.3 SENSOR CONTROL
Sensor Control allows controlling of all sensor specific settings.
Double Image / Doubleshutter (optional)
This feature is widely used for particle image velocimetry (PIV)
measurements and is an optional feature. The first exposure
time t
exp1
can be any exposure time of the available range of the
pco.pixelfly usb camera. The second exposure time t
exp2
can not
be directly adjusted. The length of the second exposure is
exactly determined by 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 A1.3.
While recording in Double Shutter mode, Camware will
automatically split the view window and always shows both
images beside each other.
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
12 MH z
24 MH z
t
td
+ t
id
5.6 µ s 5.6 µ s
t
exp
1µs … 60s
1µs … 60s
t
read
137 ms
74 ms
t
itf
1 µ s
1 µ s
1
2
2
3
4
5