Broadband omnidirectional electroacoustic transducer

Details Broadband omnidirectional electroacoustic transducer Broadband omnidirectional electroacoustic transducer

1989-05-01

1990-04-10

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367155, 367158, 310337, H04R 1700

Patent

active

049166751

ABSTRACT:
An omnidirectional acoustic transducer achieves a broadband radiation or reception pattern with high efficiency by using several transducer rings located side-by-side with each ring comprising a plurality of radially directed individual transducer elements. The transducer elements in each of the rings are tuned to a particular natural frequency and are designed accordingly. Within each ring the transducer elements are energized in phase with one another. The natural frequency of the individual transducer elements differs from one ring to the other.

REFERENCES:
patent: 2484626 (1949-10-01), Keller
patent: 3457543 (1969-07-01), Akervold et al.
patent: 3952216 (1976-04-01), Madison et al.
patent: 4100527 (1978-07-01), Tocquet
patent: 4151437 (1979-04-01), Tocquet
patent: 4380808 (1983-04-01), Hill et al.
patent: 4439847 (1984-03-01), Massa

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