Electroacoustic transducer

Details Electroacoustic transducer Electroacoustic transducer

1986-09-12

1987-11-10

Walsh, Donald P.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367164, 367166, 310337, 310369, H04R 1700

Patent

active

047062290

ABSTRACT:
An electroacoustic transducer ring has an inner vibratile surface defining a ring cavity with a plurality of arcuately spaced electrodes affixed thereto. Planar partitions are placed in the ring cavity. The partition edges are parallel to the ring axis and are attached by a resilient strip to the ring inner surface in the arcuate spacing between the electrodes. The partitions have substantially continuous radial surfaces and when the partitions are substantially coextensive in the axial direciton with the ring axis optimal chordal and diametral isolation between the electrodes is provided.

REFERENCES:
patent: 3144630 (1964-08-01), Clark
patent: 3249913 (1966-05-01), Smyth et al.
patent: 3264604 (1966-08-01), Bartlett
patent: 3309653 (1967-03-01), Martin et al.
patent: 3444508 (1969-05-01), Granfors et al.
patent: 3659258 (1972-04-01), Abbott
patent: 3972018 (1976-07-01), Erickson
patent: 4390976 (1983-06-01), Eynck

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