Arcuately tensioned piezoelectric diaphragm microphone

Details Arcuately tensioned piezoelectric diaphragm microphone Arcuately tensioned piezoelectric diaphragm microphone

1980-10-14

1983-04-05

Stellar, George G.

H04R 1702

Patent

active

043792111

ABSTRACT:
A lightweight piezoelectric microphone using a metallized piezoelectric diaphragm arcuately bowed by a boss on a slotted baffle plate held in close parallel proximity to the diaphragm is disclosed. Slotted Helmholtz resonators provide frequency response shaping and wide band noise cancellation. Electrical contact between the diaphragm and an electrical conductor is provided by a conductive, elastic material compressed by parts of the microphone housing, into electrical contact with the conductor and a metallized side of the diaphragm.

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