Near infrared apparatus for measurement of organic constituents

Details Near infrared apparatus for measurement of organic constituents Near infrared apparatus for measurement of organic constituents

1985-04-24

1986-12-30

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250339, G01J 100

Patent

active

046330879

ABSTRACT:
A non-destructive testing instrument useful for measuring of organic constituents of materials utilizes interactance of near infrared radiation from near infrared emitting diodes positioned at one end of a light transmitting cylinder having a length sufficient so that diode point sources provide uniform radiation at the other end of the cylinder, the cylinder being shielded from light. A detector, which may be inside the cylinder, detects the interactance from such radiation to provide a measurement of body fat utilizing a unique formula and unique measuring technique to prevent noise and incorrect measurements.

REFERENCES:
patent: 3776642 (1973-12-01), Anson et al.
patent: 3877818 (1975-04-01), Button et al.
patent: 4286327 (1981-08-01), Rosenthal et al.
patent: 4341473 (1982-07-01), Mast
patent: 4515165 (1985-05-01), Carrol
"An Introduction to Near Infrared Quantitative Analysis," presented by Robert D. Rosenthal, at 1977 Annual Meeting of Amerian Association of Cereal Chemists.

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