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Trigger of a simulate signal

Hello,

my problem is about the function basic level trigger. I have a sinus simulate signal and I want to save the points when the signal cross zero, and the slope is rising. When i implement the basic level trigger i don't know how introduce the data in an array.

Another question is if it is possible to have this data, with the crosses-zero points, and create a square signal. Because I want to measure a signal acquired only in the previous points.
Thank you very much for your help.
I hope these questions don't be so silly, i am rookie with Labview.

Greetings

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Take a look at the Cont Acq&Graph Voltage-Analog SW Trigger.vi example in the LabVIEW Example Finder. It will get you started with the first half of your problem.

 

To add data from previous loop iterations you will use a shift register and a Build Array subVI.

 

You can create your own analysis routine to look at the data and generate an output signal.

CTA, CLA, MTFBWY
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