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Journal Article

A Subminiature Electret-Condenser Microphone of New Design

Authors: Killion, Mead C.; Carlson, Elmer V.

Journal of the Audio Engineering Society · Volume 22 · Issue 4 · pp. 237–243 · May 1974

Abstract

The electret technology has been applied to the design of subminiature condenser microphones in an unusual manner. The use of a nontensioned disphragm and the separation of diaphragm and electret functions permit the charge storage function, the frequency response, and the temperature coefficient to be independently optimized. The resulting microphones are characterized by an unusually low vibration sensitivity, noise level, and temperature coefficient, combined with a high degree of reliability. The range of selectable parameters permits the ready attainment of flat extended range devices for research purposes or tailored frequency response devices for use in hearing aids.

Details

Publication
Journal of the Audio Engineering Society
Volume
22
Issue
4
Pages
237–243
Publication date
May 6, 1974
Affiliation
Industrial Research Products, Inc., a Knowles Company, Elk Grove Village, IL (See document for exact affiliation information.)
Type
Journal Article