Towed array hydrophone

Details Towed array hydrophone Towed array hydrophone

1998-12-28

2000-12-12

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367160, 367154, H04R 700

Patent

active

061607630

ABSTRACT:
An omni-directional dual bilaminar hydrophone particularly suitable for use in a towed array consisting of a cylindrical tubular housing whose ends are sealed by bilaminar piezoelectric ceramic/diaphragm subassemblies capable of axially deforming to produce an electric signal proportional to the intensity of the sound vibrations sensed. The density of the air-backed hydrophone may be readily predetermined by the spacing between the ceramic/diaphragm assemblies, and/or diameter of the housing. A plurality of such hydrophones internally connected in series assembled within a cylindrical flexible fluid filled support, such as a hose, may be used as a towed array wherein the separate hydrophones thereof are electrically connected in series parallel, or series-parallel, to produce a signal from sonic vibrations.

REFERENCES:
patent: 3988620 (1976-10-01), McDavid
patent: 5404340 (1995-04-01), Weichart et al.

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