Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1988-10-03
1990-05-22
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
2502521, 2503581, 128664, G01N 2155
Patent
active
049280147
ABSTRACT:
Method and simplified, lower cost apparatus for determining percent fat in a body wherein near-infrared radiation from at least one, and preferably a single pair of IREDs is transmitted into the body to achieve optical interactance between the body and the near-infrared radiation. Optical absorption by the body at only one bandwidth of the near-infrared radiation is measured. The measured absorption at the one bandwidth of near-infrared radiation is utilized to quantitatively determine the fat content of the body. Data on a plurality of physical parameters of the body, such as height, weight, exercise level, sex, race, waist-to-hip measurement and arm circumference, can be utilized along with the measured near-infrared absorption in the quantitative determination of body fat content. Advantageously, there is no need for labor-intensive factory calibration of each production unit.
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Fields Carolyn E.
Futrex Inc.
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