PIEZOELECTRIC MICROPHONE Russian patent published in 1995 - IPC

FIELD: electroacoustics. SUBSTANCE: piezoelectric microphone has sensitive element, restoring element, base bordering on surface of sensitive element. The latter is manufactured from piezocomposite material with connectivity 3-3 one phase of which is gaseous medium. Base contacts one of planes of sensitive element. Restoring element is fabricated in the form of shell of dielectric material bordering on the rest of surface of sensitive element. Thickness of part of shell contacting side surface of sensitive element meets relationship specified in description of invention. EFFECT: facilitated manufacture, improved reliability and stability of microphone. 4 dwg