I am reading this paper, which talks about dealing with mechanical noise.
When characterizing their existing noise, it says the following:
The integrated RMS vibrations up to 1 kHz on the mixing chamber plate are approximately 2 μm in the vertical z direction and 6 μm in the lateral directions x and y.
It seems they integrated noise spectral density.
In implementing some of the mechanical noise isolation technique, what I care about is what the actual, physical size of the total vibration I will have, rather than the magnitude of individual components, which I believe Power Spectral Density represents.
So, I think the integrated RMS is what I am interested. (let me know if I am wrong on this point) But does this figure actually equal the actual magnitude of oscillation? For example, if I bolt an object onto a plate which has an integrated RMS vibrations of 2 μm in the vertical z direction, will it actually oscillate vertically by about 2μm?
What I am having a hard time understanding is their 1kHz integration bound.
Shouldn't one be interested in the integrated RMS vibrations up to the infinity? why stop at 1kHz?