Method and apparatus for measuring aircraft flight parameters

Details Method and apparatus for measuring aircraft flight parameters Method and apparatus for measuring aircraft flight parameters

1988-07-29

1990-11-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

25023110, H01J 516

Patent

active

049688790

ABSTRACT:
Various aircraft flight parameters are determined based on the thermal radiation emitted from a plurality of members while the aircraft is flying. A fiberoptic cable is positioned adjacent the member emitting the thermal radiation. A thermal radiation sensor receives, through the fiberoptic cable, the radiation emitted by the member and generates an electrical signal corresponding to the radiation emitted. For an aircraft traveling at high speeds, the heat flux generated across the skin surface by air friction is proportional to the velocity and angle of attack at a given air density. An on-board computer calculates various aircraft flight parameters, such as velocity, angle of attack of various aircraft surfaces, and the like, based on the signals received from the radiation sensors. Aircraft flight parameters are more rapidly and accurately determined than possible in the prior art.

REFERENCES:
patent: 2512278 (1950-06-01), Jones
patent: 2736198 (1956-02-01), Kuhn
patent: 3120364 (1964-02-01), Stalony-Dobrzanski
patent: 3579775 (1971-05-01), Carlson
patent: 3800592 (1974-04-01), Jones, Jr.
patent: 4230290 (1980-10-01), Townsend et al.
patent: 4408827 (1983-10-01), Guthrie
patent: 4814764 (1989-03-01), Middleton

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