Air turbulence detector

Details Air turbulence detector Air turbulence detector

1992-04-02

1994-02-08

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

340968, G01N 2100

Patent

active

052850706

ABSTRACT:
Apparatus for remotely sensing changes in the spatial temperature profile of a column of atmospheric air includes (a) collecting means for receiving the thermal radiation from a column of atmospheric air, and for directing it to intensity sensing means; (b) sensing means with a rotatably mounted interference bandpass filter together with means for rotating the filter for sequentially tuning to and sensing the intensity in said column of atmospheric air of at least two spectral regions in the 4.17 to 4.2 .mu.m region of the CO.sub.2 spectral emission band; and (c) means for detecting temporal changes in the relative intensity of the spectral regions.

REFERENCES:
patent: 3402295 (1968-09-01), Astheimer
patent: 3475963 (1969-11-01), Astheimer
patent: 3665467 (1972-05-01), Haroules et al.
patent: 3780293 (1973-12-01), Flint
patent: 4590374 (1986-05-01), Brewster
patent: 4937447 (1990-06-01), Barrett

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