moving-coil microphone

electroacoustic device

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Last updated

July 1, 2026

Quick Summary

A moving-coil microphone is a type of electromechanical transducer that converts sound waves into electrical signals. It operates using the principle of electromagnetic induction. When sound waves cause a diaphragm to vibrate, it moves a coil within a magnetic field. This movement generates an electrical signal proportional to the sound's amplitude.123

These microphones are known for their ruggedness and good linearity, making them suitable for recording applications. They are similar in construction to dynamic loudspeakers, and sometimes the same component can serve both functions in devices like intercoms.13

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electromechanical transducer
Types of transducers
Either a moving-coil or a moving-magnet system may be employed, depending on which element is connected to the moving diaphragm; the moving coil is used more often. The dynamic microphone is rugged and has reasonably good linearity, so that high-quality models are useful in recording. Because a…
Read More
Either a moving-coil or a moving-magnet system may be employed, depending on which element is connected to the moving diaphragm; the moving coil is used more often. The dynamic microphone is rugged and has reasonably good linearity, so that high-quality models are useful in recording. Because a…
Read More