How to show RMS, amplitude, frequency etc in a waveform graph?

[LucasDK]

Hi,

I just made a simple accelerometer measurement and displayed the result in the "Waveform graph". Now, by navigating on the graph I want to be able to determine the amplitude, the frequency between 2 peaks, max and min and also RMS. This is done very easily in Dasylab by dragging cursors on the graph to limit the area of interest. How can I get this information in Labview quickly and intuitively by navigating on the graph itself?

Lucas Jensen

[TomRizzo]

Is this a Labview or DASYLab question?

[LucasDK]

It is a LabView question.

[Taki1999]

You're going to have to write additional code to do this so I'm not sure whether that fits in the category of "quickly and intuitively."

Here's how I'd go about it.

Basically, you'll need to use cursors to find the area of the graph which you want to extract.

Extract that data and feed it into the built-in functions in LabVIEW for RMS, peak detection, frequency analysis, etc . . .

Populate Indicators or set overlays based on the results of the LabVIEW functions.

Set the calculation as a queued process kicked off by an event from the completion of cursor move.

[LucasDK]

But how do you easily analyze waveform graphs then?

Lucas