Piezoelectric Plastic Microphones | Zendy

J. A. Grubb | Zendy

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Piezoelectric Plastic Microphones

Author(s) -

J. A. Grubb

Publication year - 1982

Publication title -

active and passive electronic components

Language(s) - English

Resource type - Journals

eISSN - 1026-7034

pISSN - 0882-7516

DOI - 10.1155/apec.9.197

Subject(s) - microphone , acoustics , diaphragm (acoustics) , piezoelectricity , bimorph , materials science , sound pressure , pmut , noise (video) , composite material , computer science , vibration , physics , image (mathematics) , artificial intelligence

Current types of microphones are described and compared with designs based on a bimorph diaphragm made from piezoelectric poly(vinylidene fluoride) film. A pressure operated microphone for telephone handsets has been fully developed. Polymer film diaphragms lend themselves to highly symmetrical designs so that both first and second order pressure gradient noise cancelling units have been based on them and compare well with the available alternatives.

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