Having purchased a 3424 scope to use mainly as a spectrum analyser I am having trouble reproducing some plots.
I work for a Flight simluator provider and we have to do a vibration analysis to make sure the Simulator is producing the correct vibrational effects for the situation. We borrowed an expensive HP hardware spectrum analyser last year and it is these plots I am struggling to replicate. The Simulator has an three axis accelerometer fitted and according to the scope the signal is about 80 mA at peak.
I am only interested in the 0-32Hz range but as I see it the minimum setting on picoscope seems to be 76Hz. I have been using the *2 function so that only what I'm interested in is displayed. The plots I'm trying to replicate are anotated, Bandwidth; 120mHz, Range; 6dBV RMS; 5. The Y axis is scaled from 100nanoV squared to 1mV squared and anotated 5dB/div.
These plots are then checked against Boeing masters for the appropriate aircraft. The masters are anotated PSD - GÂ²/Hz on the Y axis, is this equivalent to dB on the Picoscope plots?
How can I setup the picoscope software to reflect these conditions?