Towed low-frequency underwater detection system

Details Towed low-frequency underwater detection system Towed low-frequency underwater detection system

2005-05-31

2005-05-31

Pihulic, Daniel (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

Reexamination Certificate

active

06901029

ABSTRACT:
The invention relates to low-frequency underwater detection systems comprising a towed linear antenna (12, 13).It consists in producing the transducers of the transmission antenna (12) in the form of flextensional arrays of cylindrical type (20) and in forming directional transmission channels covering all of space.It makes it possible to lighten the assembly and to facilitate implementation at sea, which becomes able to be automated.

REFERENCES:
patent: 5058082 (1991-10-01), Bertheas et al.
patent: 5216805 (1993-06-01), Hallenbeck et al.
patent: 5783815 (1998-07-01), Ikeda
patent: 6117193 (2000-09-01), Glenn
patent: 0 400 176 (1990-12-01), None
patent: 0 585 186 (1994-03-01), None
patent: WO 02/079806 (2002-10-01), None
Paten Abstract of Japan vol. 1999, No. 12, Oct. 29, 1999 & JP 11 191865 A Jul. 13, 1999.
Paten Abstract of Japan vol. 2000, No 02, Feb. 29, 2000 & JP 11 317895 A, Nov. 16, 1999.

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