Graph FFT data in Flexlogger TDMS Viewer

[joeyv120]

I'm using Flexlogger to record vibration data, then opening the results in Flexlogger TDMS Viewer, and using the FFT function to transform the data into the frequency domain. However, when I graph the frequency data is shows time along the X axis instead of Hz. How do I change the x axis to show the correct labels

[joeyv120]

With the help of NI Support I have a workaround. Turns out that in DIAdem this is done by setting the Time Axis option to "Compatible", but the Flexlogger TDMS Viewer doesn't include this option. So...

1. Use the Channel function Generate Numeric Channel:

2. Select Values from x-part of the Waveform channel as the channel generation mode, and drop the calculated channel you previously created (the result from the FFT calculation) in the channel parameter section. Then click on calculate:

3. In the graph, use that channel created in the last step as the X channel, keep the Y channel as it was (The FFT result):