electret transducer

electret transducer

[i′lek‚tret tranz′dü·sər]
(electronics)
An electroacoustic or electromechanical transducer in which a foil electret, stretched out to form a diaphragm, is placed next to a metal or metal-coated plate, and motion of the diaphragm is converted to voltage between diaphragm and plate, or vice versa.
References in periodicals archive ?
West's pioneering research on charge storage and transport in polymers, the electrical analogy of a permanent magnet, led to the development of electret transducers, devices that convert one form of energy into another, for sound recording and voice communication.