H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/80
H04R 7/00 (2006.01) H04R 7/08 (2006.01) H04R 19/04 (2006.01)
Patent
CA 1230410
CONDENSER MICROPHONE HAVING RESISTANCE AGAINST HIGH TEMPERATURE AND RADIOACTIVE RAYS ABSTRACT OF THE DISCLOSURE 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.
488707
Arai Mikiya
Fujiki Yasuo
Fujimoto Ryohei
Shiba Kiminori
Watanabe Kenshu
Japan Nuclear Cycle Development Institute
Marks & Clerk
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