Underwater transducer with depth compensation

Details Underwater transducer with depth compensation Underwater transducer with depth compensation

1983-10-27

1985-06-25

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367163, 367172, 367174, H04B 1700

Patent

active

045246939

ABSTRACT:
An underwater transducer in which a ring of piezoelectric ceramic elements vibrates radially in response to an applied voltage. Spacer elements formed of steel are placed between pairs of ceramic elements and used to couple the ring movement to convex diaphragms. Each diaphragm is formed with radially extending fingers, which attach to the spacer elements. A water bladder assembly within the transducer forms a passive internal pressure compensation system. Preferably, the water bladder assembly is attached to the ring in a manner that mechanically decouples the bladder assembly from the ring.

REFERENCES:
patent: 2490595 (1949-12-01), Merten
patent: 3139603 (1964-06-01), Church et al.
patent: 3624429 (1971-11-01), Behrendt
patent: 3992693 (1976-11-01), Martin et al.
patent: 4409681 (1983-10-01), White

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