Capturing only one sample after analog trigger on a PXI4461 in Labview SignalExpress

[alek_a]

Hi

I capture two waveforms (external excitations) with my PXI446, one on each AI. I use one of them as an analog trigger (rising edge @ some voltage), lets say AI0. I need the value of AI1 at the time (or fixed # of dt's afterwards) when the trigger occurs. I need just that one sample.

(Practically I use the 4461 as sample & hold circuit that has AI1 as an input signal and AI0 as the "sample" signal.)

Currently, I use a "subset and resample" step with a very small dt and it seems that it works but I dont like it.

The procedure above is within a conditional loop that collects 100 of these samples (acquire signal triggers 100 times) and produces a statistic of this ensemble (using the Statistics step).

Is there a better way to do this?

Thanks,

Aleksandar Andreski

[Dennis_Knutson]

You should post questions about SignalExpress in the SignalExpress Board.

[alek_a]

Thanks Dennis.

Do I need to repost the question or can the thread be transferred automatically?

[alek_a · Accepted solution]

Question reposted at the Signal Express forum.

I will tag this thread as solved.