Electret Microphone – Operation Principle

Electret Microphone – Operation Principle

Electret microphone is a subkind of condenser microphones. The principle of operation of the electret condenser microphone is based on the ability of certain dielectric materials to keep the surface heterogeneity of a charge configuration for a long time.
How does the electret microphone works? Thin film is placed into the gap of the condenser ...