Cardan suspension for microphones for sound ranging in water

Details Cardan suspension for microphones for sound ranging in water Cardan suspension for microphones for sound ranging in water

1981-09-22

1987-06-16

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367141, 367165, 367153, H04R 1700

Patent

active

046740759

ABSTRACT:
A hydrophone comprises a microphone pivotally mounted on each end of a gimballed tube. A coiled cable connects each microphone with a housing for a receiver. A tube having an external diameter equal to the inside diameter of the cable coil is inserted partially into the coil. The end of the cable is threaded through a lateral hole in the tube and through the interior of the tube into engagement with the microphone or the housing, as the case may be.

REFERENCES:
patent: 1279807 (1918-09-01), White
patent: 2646950 (1953-07-01), Nelson et al.
patent: 3027539 (1962-03-01), Stillman, Jr.
patent: 3518676 (1970-06-01), Kirknes
patent: 4015233 (1977-03-01), Laurent et al.
patent: 4017824 (1977-04-01), Fife et al.
patent: 4144518 (1979-03-01), Minohara et al.
patent: 4282590 (1981-08-01), Wingate

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