Condenser Microphone, Axisymmetric with Electric Lumping
Model ID: 10731
This model is that of a simple axisymmetric condenser microphone. The model includes all the relevant physics and determines the sensitivity of the specific microphone geometry and material parameters. The model uses a lumped approximation for the electric small signal problem but solves a full FE model for the acoustic-mechanical system. The quiescent (zero point) problem is solved fully using electrostatics and a membrane model.
The model includes:
- Thermoacoustics for the acoustics at this small scale
- A PDE model of a tensioned membrane
- Moving mesh to deform the geometry
- Electrostatics to determine capacitance
- Circuit model to model electric lumped model (small signal analysis)
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Modulus of the velocity on the modeled application. |
