Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1992-08-13
1993-08-24
Evans, F. L.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250341, 356 51, 356407, 356425, G01N 2127, G01N 2133
Patent
active
052391809
ABSTRACT:
Systems and methods for material analysis are disclosed in which a material (e.g., a food of food ingredient) is illuminated at a plurality of discrete wavelengths. Measurements of the intensity of reflected light at such wavelengths are taken, and a analysis of reflection ratios for various wavelengths is performed. Changes in the reflection ratios are correlated with specific material properties such as the concentration of analytes or the condition of the material (e.g., spoilage, ripeness, degree of cooking or other processing stages).
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Boston Advnaced Technologies, Inc.
Engellenner Thomas J.
Evans F. L.
Maslow James E.
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