Method of making an underwater electroacoustic transducer with l

Details Method of making an underwater electroacoustic transducer with l Method of making an underwater electroacoustic transducer with l

1987-07-20

1988-09-06

Parr, Ted L.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

29594, 174 52PE, 310340, 367188, H04R 1700

Patent

active

047697954

ABSTRACT:
The insulation resistance between the electroded surfaces of an underwater transducer and the water within which the transducer is immersed is greatly improved by coating the electroded surface of the transducer with a layer of air-free, high-resistance waterproof material before bonding an elastomer covering over the assembly to serve as the outer housing.

REFERENCES:
patent: 2483677 (1949-10-01), Swinehart
patent: 3608023 (1971-09-01), Scarborough
patent: 3699200 (1972-10-01), Tokarz et al.
patent: 4039904 (1977-08-01), Klein et al.
patent: 4374081 (1983-02-01), Hiltz et al.
patent: 4439847 (1984-03-01), Massa
patent: 4502938 (1985-03-01), Covington et al.
patent: 4565964 (1986-01-01), Matthews et al.

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