Method and apparatus for determining the concentration of a component

S Kaestle, H Block, M Block - US Patent 6,122,535, 2000 - Google Patents
US6122535A - Method and apparatus for determining the concentration of a component -
Google Patents US6122535A - Method and apparatus for determining the concentration of a …

Method and apparatus for determining the concentration of a component

S Kaestle, H Block, M Block - US Patent 6,122,535, 2000 - freepatentsonline.com
A method of determining at least the concentration of a component from the intensity of
electromagnetic waves with at least two selected wavelengths which are reflected by human …