Optics: measuring and testing – By particle light scattering – With photocell detection
Patent
1980-11-17
1982-12-07
Corbin, John K.
Optics: measuring and testing
By particle light scattering
With photocell detection
356343, G01N 2100
Patent
active
043623883
ABSTRACT:
The concentration of a selected gas specie at a situs determined by directing a laser beam at the situs, the beam including a wavelength within the resonance absorption band of the gas specie, and measuring the intensity of the laser beam energy scattered from two spaced volumes along said beam at the situs. The ratio of measured intensities is a relative measure of the concentration of the gas specie at the situs.
REFERENCES:
patent: 3761724 (1973-09-01), Dennis
patent: 3766380 (1973-10-01), Menzies
patent: 3768908 (1973-10-01), Zaromb
patent: 3778742 (1974-01-01), Garbany
patent: 3820901 (1974-06-01), Kreuzer
patent: 3998557 (1976-12-01), Javan
Boos Roger T.
Byer Robert L.
DeFreez Richard K.
Egan Walter D.
Bethlehem Steel Corp.
Corbin John K.
Delaney Michael J.
Koren Matthew W.
O'Keefe Joseph J.
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