Method and apparatus for near-infrared quantitative analysis

Details Method and apparatus for near-infrared quantitative analysis Method and apparatus for near-infrared quantitative analysis

1996-02-15

1997-12-30

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

G01N 2135

Patent

active

057033641

ABSTRACT:
Method and apparatus for performing near-infrared (NIR) quantitative analysis includes the steps of providing NIR radiation at a plurality of different wavelengths for illumination of an object to be analyzed, and varying the amount of time that radiation at each wavelength illuminates the subject according to the output level of radiation at each wavelength so as to provide substantially similar detection data resolution for each of the plurality of wavelengths. The method is particularly applicable to non-invasive quantitative measurement of blood analytes such as blood glucose levels, using low cost IREDs operating outside their one-half power bandwidths.

REFERENCES:
patent: 4286327 (1981-08-01), Rosenthal et al.
patent: 4883963 (1989-11-01), Kemeny et al.
patent: 5365066 (1994-11-01), Krueger, Jr. et al.

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