Acoustic signal conditioning device

Details Acoustic signal conditioning device Acoustic signal conditioning device

1981-01-27

1983-06-28

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

310337, 367149, 367151, 367152, 367162, 367173, 367176, 181288, H04R 1700

Patent

active

043909760

ABSTRACT:
An underwater acoustic array comprises an acoustic skirt baffle positioned djacent to a hull surface for reducing the transmission of shipboard noise; an acoustic conditioning module positioned over the acoustic skirt baffle; and an outer layer secured to the acoustic conditioning module and containing a plurality of hydrophone units.
The acoustic conditioning module comprises inner and outer spaced coverplates; a plurality of spacer elements extending between the coverplates to form a plurality of closed chambers therebetween; and "tuned" viscoelastic damping elements secured to the outer coverplate.

REFERENCES:
patent: 2754925 (1956-07-01), Burke
patent: 2768364 (1956-10-01), Camp
patent: 3087574 (1963-04-01), Watters
patent: 3177970 (1965-04-01), Boschi
patent: 3424270 (1969-01-01), Hartman et al.
patent: 3601228 (1971-08-01), Nashif
patent: 3737004 (1973-06-01), Higgs
patent: 3907062 (1975-09-01), Bugham
patent: 4177876 (1979-12-01), Pujolle

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