Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems
Patent
1995-07-03
1996-07-16
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Echo systems
Side scanning or contour mapping sonar systems
G01S 1500
Patent
active
055373666
ABSTRACT:
A low frequency sonar system for detecting buried cables and pipelines that includes at least three sub-bottom sonar beam projectors arranged athwarships, i.e. transverse to the central longitudinal axis of the system platform and a common receiver, the latter preferably being an arc focused device. The projectors are comprised of parametric transmitters, with the two outer projectors canted relative to the middle projector so that sonar return signals having a relatively narrow beamwidth are directed to the bottom and returned as a sequence of specular reflections along the length of sub-bottom targets to the common receiver. The transmission from the three parametric transmitters result in three spaced apart "hits" on the target which are displayed as a function of depth. Three detections in a row, i.e. at the same depth, provide an indication of a cable or pipeline buried beneath the bottom of a body of water.
REFERENCES:
patent: Re31026 (1982-09-01), Shatto
patent: 3950723 (1976-04-01), Gilmour
patent: 4075599 (1978-02-01), Kosalos et al.
patent: 4187556 (1980-02-01), Jones
patent: 4216537 (1980-08-01), Delignieres
patent: 4247923 (1981-01-01), De Kok
patent: 4958330 (1990-09-01), Higgins
patent: 4970700 (1990-11-01), Gilmour et al.
patent: 5025423 (1991-06-01), Earp
patent: 5177710 (1993-01-01), Gilmour et al.
Non-Linear Acoustics, Robert T. Beyer, Naval Sea Systems Command, Department of the Navy, 1974, pp. 336-371.
Development of High Resolution Side-look Sonars, (presented at the Acoustical Society of America meeting, 9-12 Nov., 1982, Orlando, FL)-Arthur Nelkin and George A. Gilmour, Westinghouse Elec. Corp., Oceanic Div., P.O. Box 1488, Annapolis, MD 21404.
Edwards C. O.
Lobo Ian J.
Northrop Grumman
LandOfFree
Buried cable pipe detection sonar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Buried cable pipe detection sonar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Buried cable pipe detection sonar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1789962