Electret transducing

Details Electret transducing Electret transducing

1986-06-18

1988-08-16

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Electrets

381191, 29594, 296311, G11C 1302, H04R 1900

Patent

active

047646900

ABSTRACT:
A backplate assembly for an electret transducer including a backplate, an electret layer covering one surface of the backplate, and a peripheral spacer on the same side of the backplate as the electret layer and around the entire periphery of the electret layer, the spacer being secured to the backplate by a thin layer of material of the electret layer located and compressed between the spacer and the backplate, the thin layer being substantially thinner than the electret layer. Also disclosed is using a peripheral ring to support a diaphragm spaced from a housing wall via support members extending from the ring.

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