Title:
MULTI-PARAMETER AIR DATA SENSING TECHNIQUE
Document Type and Number:
WIPO Patent Application WO1996007106
Kind Code:
A3
Abstract:
Static pressure sensing and free airstream temperature sensing is obviated in a method for determining aircraft velocity relative to an airmass by utilizing a static pressure and temperature component present in pressure variations sensed by a total pressure sensor located on a rotating arm mounted on the fuselage of an aircraft. A harmonic analysis of a quasi-sinusoidal total pressure variation includes a determination of steady state and both first and second harmonic components. These harmonic components are used to determine the static pressure, the free airstream temperature and the aircraft airspeed without separately sensing these parameters.
Inventors:
SLABINSKI ROBERT J
FILIPKOWSKI RICHARD C
FILIPKOWSKI RICHARD C
Application Number:
PCT/US1995/010968
Publication Date:
May 02, 1996
Filing Date:
August 30, 1995
Export Citation:
Assignee:
UNITED TECHNOLOGIES CORP (US)
International Classes:
G01P5/14; G01P13/02; (IPC1-7): G01P5/00
Foreign References:
| US4893261A | 1990-01-09 | |||
| US3332282A | 1967-07-25 |
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