アプリケーションギャラリ

This example of a simple axisymmetric condenser microphone includes all the relevant physics and determines the microphone sensitivity as well as microphone capacitance for the specific simplified microphone geometry and material parameters. It solves a fully coupled multiphysics model for the acousto-electro-mechanical system. The microphone is prepolarized, resulting in a stationary (DC) deformation and pretension of the membrane. The linear response around the DC operating point is solved using the frequency domain perturbation solver. The model includes detailed modeling of the thermoviscous losses and damping in the fluid domain.