Measuring and testing – Navigation – Leeway incidence or side-slip
Patent
1981-06-18
1983-07-05
Ruehl, Charles A.
Measuring and testing
Navigation
Leeway incidence or side-slip
73170A, 7386127, G01P 518, G01P 1302
Patent
active
043911366
ABSTRACT:
A three-axis current meter for measuring all three components of current velocity in the absence of self-interference caused by the sensor supports. Acoustic transducers for measuring the current components are mounted in "fingers" which are pointed in the upstream direction. Two of the acoustic paths lie in a vertical plane and intersect at right angles. The third acoustic path runs between two fingers, one of which is longer than and the other shorter than those defining the first two paths. The resulting path is inclined at 45.degree. with respect to the vertical plane.
REFERENCES:
patent: 3435677 (1969-04-01), Gardner
patent: 4038870 (1977-08-01), Rotier
Gytre-Radio and Electronic Engineer, vol. 46, No. 12, pp. 617-623, Dec. 1. 6
1976 Article Entitled "A Three-Axis Acoustic Current Meter for Small Scale Turbulence" by Neil L. Brown et al in ISA ASI 76269.
Green Albert W.
Perkins Henry T.
Saunders Kim D.
Beers R. F.
Gray Francis I.
Ruehl Charles A.
The United States of America as represented by the Secretary of
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