Air turbulence detector
AssigneeAlliedSignal Inc.
InventorJoseph J. Barrett
Life of this patent
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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.
Claims6
Apparatus for remotely sensing changes in the spatial temperature profile of a column of atmospheric air comprising, in combination:
- (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 for sequentially 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, said sensing means comprising an interference bandpass filter mounted for step-wise rotation around an axis in the plane of the filter in combination with means for stepped rotation of said filter adapted to center on said spectral regions;
- and
- (c) detecting means for detecting temporal changes in the relative intensity of said spectral regions.
Dependencies are inferred from the claim text.