Optics: measuring and testing – With plural diverse test or art
Patent
1997-11-04
1999-06-15
Font, Frank G.
Optics: measuring and testing
With plural diverse test or art
356 73, 356381, 356432, 356357, G01N 2100
Patent
active
059127309
ABSTRACT:
In a method and apparatus for analyzing an unknown material, the spectra of absorption and remission coefficients are determined by means of equations relating to remission, absorption and transmission fractions through layers of material of different thicknesses in accordance with a discontinuum theory. To determine the concentration of an absorber in an unknown material, the absorption coefficients are determined for the unknown material and for samples of known material. The concentrations of absorbers in the unknown material are determined from the absorption coefficients by regression analysis.
Dahm Donald J.
Dahm Kevin D.
Font Frank G.
Foss NIRSytems, Inc.
Ratliff Reginald A.
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