Wall-driven oval ring transducer

Details Wall-driven oval ring transducer Wall-driven oval ring transducer

1981-07-06

1984-03-06

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

310330, 310337, 367159, 367160, H04R 1700

Patent

active

044357940

ABSTRACT:
This invention is a small light weight underwater transducer that operates at low frequencies. The foregoing is accomplished by embedding piezoelectric material in the wall of an oval shell between the shell's nodal points. When an alternating voltage is applied to the piezoelectric material, the piezoelectric material expands and contracts causing large circumferential strains in the shell of the transducer. The aforementioned strains cause the shell to vibrate and energy to be radiated into the water. This invention may also be used as a receiving type of transducer.

REFERENCES:
patent: 2425594 (1947-08-01), Brown
patent: 3139603 (1964-06-01), Church et al.
patent: 3258738 (1966-06-01), Merchant
patent: 3274537 (1966-09-01), Toulis
patent: 3277433 (1966-10-01), Toulis
patent: 3370187 (1968-02-01), Straube
patent: 3706967 (1972-12-01), Renna, Jr.
patent: 3846744 (1974-05-01), Renna, Jr. et al.
patent: 4384351 (1983-05-01), Paglearini, Jr. et al.

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