Piling and pier inspection apparatus and method

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

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367 99, 367104, G01S 1508

Patent

active

052971090

ABSTRACT:
The objects of the present invention are achieved by a method and means for temporarily suspending sonar beam transducer means on a dihedral wing body at a first underwater location within sonar beam range of said scoured area; scanning a first portion of said scoured area with said sonar beam in a first substantially vertical plane that points in a first azimuth direction, so as to generate signals indicative of the range and bearing of said scanned first portion from said transducer means; and scanning at least a second different portion of said scoured area with said sonar beam in a second different substantially vertical plane that points in a second different azimuth direction, so as to generate signals indicative of the range and bearing of said scanned second portion from said transducer means. In actual practice, scanning by the sonar beam occurs in many different vertical planes and also can be done from different underwater locations.

REFERENCES:
patent: 3617996 (1971-11-01), Herbert
patent: 4855966 (1989-08-01), Cinquino
patent: 5231610 (1993-07-01), Barksdale, Jr. et al.
Towed Underwater Systems, Endeco/Ysi, Inc., 13 Atlantis Drive, Marion, Mass., 02738-1448, Nov. 1991, pp. 1-16.

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