analog pause

[ameletudiante99]

Good morning ,

I am working on the NI USB 6361 card and I would like to try the analog pause, and it works well but I have a problem when displaying the signals; in the image I put a square signal between -3V and 3V on the GBF but the display is not good at all

what is this due to?

thanks in advance

[UliB]

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@ameletudiante99 wrote:

Good morning ,

I am working on the NI USB 6361 card and I would like to try the analog pause, and it works well but I have a problem when displaying the signals; in the image I put a square signal between -3V and 3V on the GBF but the display is not good at all

what is this due to?

thanks in advance

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What do you expect to see?

[ameletudiante99]

a square signal between -3V and 3V,

[UliB · Accepted solution]

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@ameletudiante99 wrote:

a square signal between -3V and 3V,

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Well, I understand it this way: You pause the data acquisition when the signal falls below 0,5, so there are no samples between 0,5 and -3.

You see the samples with a value of 3,1 and from time to time a value between 3 and 0,5 (falling or raising edge).

In the graph your data is connected from point to point, which produce these triangle peaks.

If you want to see a square signal you should not pause data acquisition.

Disclaimer: Since you only posted a picture of a front panel I can't look at the real configuration for the data acquisition.

[ameletudiante99]

yes it's true when I don't use a trigger pause I have the signal correctly;

What I understood about pause trigger is to suspend the acquisition if I have a voltage lower than 0.5V and to resume if it ever increases

for the tests I used an example that I found in the labview library,

as a source I used the ai0 analog input where I also connected my signal