ICP DAS USA IM-30 Manual Do Utilizador

 

Trigger Mode is also used to enable the 

Ex-Trig exposure start control; enabling users to select rising or falling edge 

triggering and to assign a physical input port to receive the Ex-Trig signal. 

 

The Ex-Trig signal can be periodic or non-periodic. When the camera is 

operating under control of an Ex-Trig signal, the period of the Ex-Trig signal 

determines the camera’s frame rate: 

For example, if you are operating a camera with an Ex-Trig signal period of 

20ms (0.02s): 

When programmable mode is selected, the length of the exposure is 

determined by the shutter setting described in “1.4.6 Shutter (Exposure)”. If 

the camera is set for rising edge triggering, exposure starts when the 

Ex-Trig signal rises. If the camera is set for falling edge triggering, exposure 

starts when the Ex-Trig signal falls.   

The external trigger (Ex-Trig) input signal can be used to control the start of 

exposure.  A rising edge or a falling edge can also be used to trigger 

exposure start. The External 

1/0.02 = 50 fps 

So in this case, the frame rate is 50fps 

The minimum high time for a rising edge trigger (or low time for a falling 

edge trigger) is 1us. 

 

If you are triggering the camera with an Ex-Trig signal, two exposure modes 

are available, programmable mode and level controlled mode. 

 

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