SVS-Vistek SHR 10GigE, Manual

Page: 80 / 103

I/O matrix
l
4 images to be taken (RGBW) result in 4 sequences
l
RGB PWM change with different intensities (duty cycle) taking care for dif-
ferences in spectral response of the camera sensor
l
PWM change 0-2 is connected to out 0-2
l
Seq pulse A is driving the exposure (trigger)
l
Seq pulse B is driving the strobe
l
Seq pulse B in WHITE sequence is reduced down to 33% as light intensities
of 3 lights (RGB) will add up
Notes
l
Different exposure / strobe timings are used for illustration. In most cases
they will show values same as exposure
l
The resulting exposure time shows the period of sensor light exposure.
("masking" of exposure time by creating strobe light impulses shorter than
exposure time). This value is not adjustable at the camera
l
PWM change is shown with reduced height for demonstrating reduced intens-
ity. In reality though, PWM change will be full height (full voltage, shunt res-
istor might be necessary) with the adjusted duty cycle
l
Use a PWM frequency high enough not to interfere with your timings (here:
1000 Hz)
Scenario values
Interval 0
(RED) Interval 1
(GREEN) Interval 2
(BLUE) Interval 3
(WHITE)
Sequencer Interval 1000 ms 1000 ms 1000 ms 1000 ms
Seq pulse A start 0 ms 0 ms 100 ms 0 ms
Seq pulse A stop 100 ms 300 ms 300 ms 100 ms
Seq pulse B start 0 ms 100 ms 200 ms 0 ms
Seq pulse B stop 100 ms 200 ms 300 ms 33 ms
PWM Frequency f 1000 Hz 1000 Hz 1000 Hz 1000 Hz
PWM change 0 (RED) 100% 0% 0% 100%
PWM change 1
(GREEN)
0% 70% 0% 70%
PWM change 2 (BLUE) 0% 0% 80% 80%
PWM change 3 - - - -
As stated before, all these values have to be entered into the camera’s GenICam
tree as tic values.
The timing values translate like this into tics:
5 Feature description 80