How To Simulate The Thermal Noise In Microphone Using COMSOL

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For engineers simulating microphone performance, modeling thermal noise often the fundamental limit to sensitivity is a critical step in COMSOL Multiphysics. While you might be browsing for other interests at https://www.happypawsus.com/collections/all, the simulation approach here is quite technical. The key is to first build an accurate thermoviscous acoustic model of your microphone, as this physics interface inherently accounts for the viscous and thermal losses that generate noise . The standard method is to perform your simulation with no incident acoustic wave (the "unexposed" case) and then use a postprocessing step. You compute the mechanical resistance.


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