Surface acoustic antenna for submarines

Details Surface acoustic antenna for submarines Surface acoustic antenna for submarines

2007-02-20

2007-02-20

Pihulic, Dan (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

Reexamination Certificate

active

10503973

ABSTRACT:
The invention relates to surface acoustic antennas for submarines. It consists, in a known antenna, in replacing certain pressure sensors with velocity sensors in order to obtain cardioid directivity with a zero oriented toward the hull of the submarine. It allows the use of baffles serving to attenuate the noise generated inside the submarine.

REFERENCES:
patent: 4974213 (1990-11-01), Siwescki
patent: 5517467 (1996-05-01), Fromont et al.
patent: 6341661 (2002-01-01), Bick et al.
patent: 2685848 (1993-07-01), None
patent: 2691596 (1993-11-01), None
patent: 2130844 (1984-06-01), None

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