Condenser microphone having resistance against high-temperature

Details Condenser microphone having resistance against high-temperature Condenser microphone having resistance against high-temperature

1985-08-16

1987-03-10

Fuller, Benjamin R.

Acoustics

Diaphragm

Microphone type

381189, H04R 700

Patent

active

046484809

ABSTRACT:
A condenser microphone utilizable at high temperature and intense radioactive rays. The microphone has a tension ring and a backplate, both of which are made of a metal having a small coefficient of linear expansion relative to the other parts of the microphone. The tension ring is fitted to a tension ring holder, and the backplate is mounted on the tension ring holder through an insulating material so that the tension ring and the backplate are held together to form a unitary structure.

REFERENCES:
patent: 3190972 (1965-06-01), Schoeps et al.
patent: 3240883 (1966-03-01), Seeler

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