From the boundary settings dialogue box, I grounded the base of the disc and applied 1V to the top. The rest of boundaries are set at "zero charge/symmetry"
I am using the "frequency response" analysis, and I am varying the frequency from 3 to 4.5 MHz in steps of 0.02MHz (I expect the disc to...
In fact I did both cases, the main difference is that when I used symmetries then defined the variable I as I=-imag(nJ_smpz3d)*N, where N is the number of segments contained in the whole disc, i.e., if a 10 deg segment then N=36. I obtained in both ases the same solution.
However the question...
Hi,
I'm trying to model the frequency response of a thin PZT disc using COMSOL, but I am not sure how to calculate the impedance Z vs frequency. I defined the current density at the top electrode as I=-imag(nJ_smpz3d) and then plotted V/I using the domain plot parameters in the postproc menu...