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IVC102: time integrator trigger setup

Part Number: IVC102

Hi there,

I send an optical signal to the photodetector and then the photodetector signal was collected by the IVC102 time integrator, the optical pulse duration i set is 5 us, in order to make the time integrator work, i also send a trigger signal for the time integrator, the trigger signal started before the signal comes to the integrator, but this is not a problem as i can remove it by remove the same time 'zero signal' integration results, here, i set the time integration trigger stopped together with the signal, however, it seems the time integration signal still increases after the integration period stopped, so i am wondering if i need to set the time integrator trigger stopped before the real signal stops.

I attached several figures, fig1-fig3 has different stopping time, i think the output results should be the same, however, it doesnt, so please tell me the time difference between teh trigger and the signal.

Best wishes

Chao