Acoustic decoupler for a sonar array

Details Acoustic decoupler for a sonar array Acoustic decoupler for a sonar array

1989-11-17

1991-01-01

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367162, 367165, 367173, 367176, H04R 100

Patent

active

049823850

ABSTRACT:
An inner decoupler for a sonar array including a linear array of hydrophones and consisting of an alternating multi-layer configuration of acoustic compliance elements in the form of acoustic baffles and acoustic non-compliance elements in the form of water or other acoustic mass-like element located between the hydrophones and the outer surface of a ship's hull. This arrangement embodies an acoustic low pass filter between the hydrophones and the hull and operates to enhance incoming signals incident to the sonar array while attenuating signals such as structure borne noise generated from the opposite or hull side of the array.

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