Communications – electrical: acoustic wave systems and devices – Echo systems – Speed determination
Reexamination Certificate
2008-03-28
2009-11-03
Lobo, Ian J (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Echo systems
Speed determination
C367S089000
Reexamination Certificate
active
07613072
ABSTRACT:
A system for determining the directional properties of surface waves or internal waves of a fluid medium includes a sonar system having a plurality of transducers for generating respective, separate acoustic beams and receiving echoes from one or more range cells located substantially within the beams; and a computer program for determining the directional properties associated with the surface waves or internal waves from the received echoes, wherein the computer program determines along-beam velocities along the separate acoustic beams and combines the along-beam velocities to form an equivalent orbital velocity vector. The system is mounted on or in a sub surface buoy that can move or rotate during measurement and includes a motion sensor measuring six degrees of freedom to account for horizontal velocity and vertical displacement in the subsurface buoy mounted sonar system.
REFERENCES:
patent: 5299173 (1994-03-01), Ingram
patent: 6282151 (2001-08-01), Brumley et al.
J.D. Wood, et al., “Measurement of Deep Water Ocean Waves from a Sub-surface Mooring”, Proceedings Oceans 2005 Europe.
J.D. Wood, et al., “A Mooring Design for Measurement of Deep Water Ocean Waves”, Proceedings Oceans 2006.
Lohrmann Atle
Pedersen Torstein Kanstad
Beuerle Stephen C.
Lobo Ian J
Nortek AS
Procopio Cory Hargreaves & Savitch LLP
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