Acoustic wave reflector capable of working under deep submersion

Details Acoustic wave reflector capable of working under deep submersion Acoustic wave reflector capable of working under deep submersion

1990-12-21

1992-03-24

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Underwater system

H04B 1100

Patent

active

050994573

ABSTRACT:
In an acoustic wave reflector working in the sea, a sheet of air is set up between a reflecting plate and a perforated plate. This sheet of air forms a reflecting interface with the reflecting plate. A rubber bladder forms a container which, under the effect of the pressure of the water, feeds the sheet of air through the perforated plate. The thickness of this sheet of air is kept substantially constant up to the limit of submersion of the reflector. This makes it possible to increase the depth at which the acoustic reflectors are used.

REFERENCES:
patent: 2390847 (1945-12-01), Olson
patent: 3501741 (1970-03-01), Wallen et al.
patent: 4126847 (1978-11-01), Etkins
patent: 4982386 (1991-01-01), Henriquez

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