- #1
marvincwl
- 16
- 0
I am currently doing a vibration analysis using a random vibration machine which gives Grms value based on Power Spectral Density (PSD) plot using Fast Fourier transform(FFT).
Before I ran the test on my specimen, I tried to characterise the vibration using a DDSR board (accelerometer). Interestingly, the G-force recorded from the accelerometer far exceeds the values I've set on the random vibration machine.
Anyone knows why?
Before I ran the test on my specimen, I tried to characterise the vibration using a DDSR board (accelerometer). Interestingly, the G-force recorded from the accelerometer far exceeds the values I've set on the random vibration machine.
Anyone knows why?