I'm interested in figuring out the maximum microphone diaphragm deflection for a project. Can anyone point me to a chart or have some numbers that show SDC microphone diaphragm excursion vs. SPL?
Understood. What about a ballpark figure for a midband tuned, 20um separation, SDC (~20mm), pressure gradient type capsule with no polarization voltage present?
In the B&K Microphone Handbook, it states the separation is typically set to 20 micron +/-0.5 micron. Does the polarization voltage dampen the membrane that much? I would think suck-in would occur if the membrane was that close to the back-plate.