Sliced phased array doppler sonar system

Details Sliced phased array doppler sonar system Sliced phased array doppler sonar system

1994-09-30

1996-08-27

Tudor, Harold J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

310337, 367135, 367168, H04R 1700

Patent

active

055507921

ABSTRACT:
A method and apparatus is disclosed for making a sliced phased array transducer formed from a single piezoelectric disk which has been bonded to a metal coated support surface. After bonding, the disk and attached metallic coating are cut into a plurality of conductively isolated staves which are then wired into a sequence which allows the array to emit two beams in opposite directions at a depression angle of about 60 degrees. In use, two of the arrays are used adjacent to each other with one emitting beams along the port and starboard sides of the vessel and the other being rotated 90 degrees to emit beams to the force and aft of the vessel, the four beams thereby forming a Janus configuration. Alternatively, the beams could be rotated 45 so that two beams are directed to both the port and starboard sides.

REFERENCES:
patent: 4305014 (1981-12-01), Borburgh et al.
patent: 4371805 (1983-02-01), Diepers et al.
patent: 4641291 (1987-02-01), Simmons, Sr. et al.
patent: 4890268 (1989-12-01), Smith et al.
patent: 5099459 (1992-03-01), Smith et al.
patent: 5267221 (1993-11-01), Miller et al.
patent: 5329498 (1994-07-01), Greenstein

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