Disturbed signal

[pollon]

Hi i'm trying to read with signal express a 5V ttl signal generated by a function generator, but what i see on the screen is very disturbed signal. Could somebody please tell me why?

[Logan_081]

Hello Pollon,

Did you create the signal from LabVIEW and then you tried to read it with Signal Express? Could you post the file?

Regards

[pollon]

Hi Matteo, i create the signal with a function generator and i read it with signal express!!!!!

[Logan_081]

Pollon,

Thank you for repeat me the same information you posted before , i need the format file you used to save your data and the details of the reading step you created.

Thanks 

[pollon]

Hi Matteo, first of all i want to thank you for your help. here are all the ins and outs of my measure.  Hope this will help

Regards

Paul

[Logan_081]

Hi Paul,

Thank you for the error documentation, it's very useful. My question is if the first acquisition step give you a corrupted measure or only the formula step returns this triangle wave. Did you try acquire different waveform?

[pollon]

Hi, i tried to measure different kind of signals but every time there was a disturbed signal. Anyway it's the first acquistion step thet gives me the disturbed signal. The connection wire may be a problem?

[pollon]

Hi, i want to specify that the tringle wave is the signal that i want to measure but without all those spikes.

Thanks

Paul

[Logan_081]

Hello Paul,

Of course, the wiring connections procedure could be a critical aspect of the noise generation on your signals. Please refer to this document to check the suitability of your wiring configuration:

https://www.ni.com/en/shop/data-acquisition/measurement-fundamentals/field-wiring-and-noise-consider...

Let me know if these advices are sufficient to solve the problem.