# Interactive resonance frequency spectrum - PZT-5A disks

This is an interactive resonance frequency spectrum for
circular PZT-5A disks. When pointing the mouse pointer at points in the
resonance frequency spectrum where the solid lines, corresponding to
the resonance frequencies, cross the thin vertical lines, corresponding
to D/T=1, 2, 3, 4 etc., the D/T ratio, mode number and resonance frequency
corresponding to this point in the resonance frequency is shown in the
status window of the browser. When clicking on the resonance frequency
spectrum, the corresponding eigenmode is shown in a new window.
The resonance frequency spectrum is scaled up to make the mode coupling
better visible, and therefore it is not possible to see all of the
resonance frequency spectrum on-screen at once.

Note that you need to have JavaScript enabled in your browser to use this
interactive resonance frequency spectrum.