x axis time scale

[saiprakash13169]

Greetings,

I have been trying to plot strain gauge data on a waveform graph. While doing so on the graph I want the scale on the x-axis(time) to start from 0 and progress along with time with a fixed time frame.

Thanks in advance.

[GerdW]

Hi saiprakash,

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@saiprakash13169 wrote:

I have been trying to plot strain gauge data on a waveform graph. While doing so on the graph I want the scale on the x-axis(time) to start from 0 and progress along with time with a fixed time frame.

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So what have you tried? Did you encounter any problems?

Mind to attach your VI?

How did you configure your graph?

[saiprakash13169]

Hello,

 The problem that I'm encountering is that when I run the VI on either side of the x-axis(time) I find random numbers which keep on changing.

I do not find this issue while I was using DAQ Express. I could easily get the plot and also FFT of the same. I'm not sure where I went wrong while using LabView. I'm new to this please don't mind if I did something that doesn't make sense.

Thanks in advance.

[GerdW]

Hi saiprakash,

did you take all those Training resources as offered in the header of the LabVIEW board to learn the LabVIEW basics?

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@saiprakash13169 wrote:

 The problem that I'm encountering is that when I run the VI on either side of the x-axis(time) I find random numbers which keep on changing.

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Those numbers are NOT "random", they are exactly like they should be!

You are using charts, which might be fine to display the signal from your DAQAssistent.

But I think it is the wrong display for a FFT result! Use a graph to display the FFT data:

You also should learn to use the advantages of the waveform datatype in LabVIEW: it includes timing information (t0, dt), which is used gy graphs to display the x scale correctly…

[saiprakash13169]

Hello,

No, I haven't taken any training resources offered. Would you mind suggesting to me a reliable source that you think is the best way to learn LabView!

Thanks in advance

Sai Prakash.

[GerdW]

Hi saiprakash,

as written: Take those "Training resources" as offered in the header of the LabVIEW board!

See here: