Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1974-09-06
1977-03-15
McGraw, Vincent P.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356 93, 356 96, 356100, G01J 342
Patent
active
040121453
ABSTRACT:
The apparatus comprises a coherent radiation source which emits, in succession, respective ones of a plurality of different wavelengths. The emitted radiation is separated into a reference portion and a measurement portion. The measurement portion propagates through a medium such as the atmosphere to be analyzed and is received by a measurement detector. The reference portion is received directly by a reference detector. A processing circuit processes signals representing the portions, produced by the detectors to produce numerical data relating to the spectral analysis of the medium.
REFERENCES:
patent: 3561872 (1971-02-01), Grabowski et al.
patent: 3603690 (1971-09-01), Hard
patent: 3676004 (1972-07-01), Prugger et al.
patent: 3790290 (1974-02-01), Muller et al.
patent: 3843258 (1974-10-01), Shupe
Chabannes Francois Marie Maurice
Godfrin Pierre Raymond Louis
Mailly Pierre Philippe Louis
Milot Edouard Sylvain
Etat Francais
McGraw Vincent P.
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