Instrument Control (GPIB, Serial, VISA, IVI)

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LeCory 9370 scop vi

Hi,

 

It took me some time (it's heard to learn LV while you really need to learn QM and so on). Finally today I have it! This file is pretty much what I wanted...

 

This VI uses a LC pre made VI to read the waveform, then an FFt filter and some data is extracted from within the cursors defined there. This VI is just one part of a more sophisticated one, but this is the part that gave me heard time...

 

Thanks for the help you guys gave me!

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Hello again,

 

Once again I am in need for some assistance. The oscilloscope is set to read when an external pulse is given, but my VI samples the scop several time during that. The solution I have now is to compare parts of the waveform and then decide if the waveform was read multiple times. I would prefer it if I could the waveform just once per trigger, I was unable to find a function for that in the LC97xx driver.

 

Did I just miss it? Is there a "smart" way of doing this?

 

 

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Hello,

 

I would suggest reviewing the LabVIEW shipping example Acq&Graph Voltage-Int Clk-HW Trig Restarts.vi.  This can be found by navigating to Help » Find Examples... within LabVIEW.  This example shows how to acquire a finite amount of data (waveform) each time an analog trigger condition is met.

 

The way you are collecting data right now, it is constantly collecting a waveform within a while loop, so it makes sense that you would see it repeatedly.

 

Let me know how that goes!

Regards,

Shawn S. | NIC
Instrument Driver/IVI PSE
National Instruments
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