Underwater acoustical transducer

Details Underwater acoustical transducer Underwater acoustical transducer

1986-12-22

1989-01-10

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367163, 367165, 367174, H04R 1700

Patent

active

047978635

ABSTRACT:
An underwater acoustical transducer includes an annular, spring steel band supporting a diaphragm of a woven fabric held taut by the band. A flexible piezoelectric transducing element is attached with respect to the band, typically in contiguous relation to a portion of the fabric overlying the radially outward surface of the band. The transducing element can include an electrically conductive core surrounded by flexible piezoelectric material, or alternatively, a substantially flat strip of flexible piezoelectric material.

REFERENCES:
patent: 2829520 (1958-04-01), Stanton
patent: 3539979 (1970-11-01), Crall
patent: 3798474 (1974-03-01), Cassand et al.
patent: 3992737 (1976-11-01), Duel et al.
patent: 4183010 (1980-01-01), Miller
patent: 4189703 (1980-02-01), Bennett
patent: 4371957 (1983-02-01), Sandoz et al.
patent: 4552243 (1985-11-01), Melillo et al.
patent: 4653036 (1987-03-01), Morris et al.
patent: 4695988 (1987-09-01), Banno

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