04-03-2011 01:01 PM
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!
07-14-2011 09:23 AM
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?
07-20-2011 05:38 PM
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!