Measuring and testing – Navigation – Leeway incidence or side-slip
Patent
1986-12-12
1989-04-04
Woodiel, Donald O.
Measuring and testing
Navigation
Leeway incidence or side-slip
73182, G01C 2100, G01P 514
Patent
active
048174262
ABSTRACT:
In a method of determining the angle of an incident flow at a stationary or moving point of measurement, especially at a point of measurement on a vehicle, the pressure of the incident flow on the surface of a sphere or of a spherical segment is measured. The resulting pressure distribution on the surface is compared with a pressure distribution associated with a defined angle of incident flow and from this the angle of incident flow is calculated, or the angle of displacement of the pressure distribution curve that is found is determined relative to a desired predetermined coordinate system, or relative to a predetermined pressure distribution curve associated with a defined incident flow angle. The determination of the incident flow angle is particularly accurate and can be achieved with minimal measurement complexity in a reliable manner.
REFERENCES:
patent: 2515251 (1950-07-01), Morris
patent: 3094868 (1963-06-01), Andersen, Jr. et al.
patent: 3880002 (1975-04-01), Gallington
Wright, "The Evaluation of . . . Calibration Data" J. of Physics E. 1970, vol. 3, pp. 356-362.
Igenbergs Eduard
Jahncke Christian
Prof. Dr.-Ing. Eduard Igenbergs
Woodiel Donald O.
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