I am currently working on analyzing resonance frequencies of a simple diaphragm. The diaphragm is in a 0 pressure environment with the only force acting upon the diaphragm being voltage which I have converted to coulomb force (electrostatic force).
When I am measuring to find multiple resonance frequencies, what value should I put for the bandwidth (I am analyzing the displacement response graph of the center of the diaphragm)? I fear that the higher peak of the 1st resonance point may `swallow` the lower peaks of the following resonance points depending on the number of measurement points I set.
Also, how does the bandwidth effect the slope of the resonance frequency?
I am trying to measure as accurately as possible so I can determine a proper operating range for these diaphragms.