초록 ▼

Biochemical components and changes in the components are measured by directing light of several wavelengths into a body at one location, sensing light at the wavelengths emerging from the body at a plurality of distances from the one location, and ascertaining biochemical component characteristics i

Biochemical components and changes in the components are measured by directing light of several wavelengths into a body at one location, sensing light at the wavelengths emerging from the body at a plurality of distances from the one location, and ascertaining biochemical component characteristics in the body as a function of variations, with respect to distance, of the logarithm of the ratio of the light sensed to the light directed into the body. The variations with respect to distance are in the form of the derivative and square of the derivatives of the logarithm.

대표청구항 ▼

The method, comprising: directing electromagnetic radiation at one or more wavelengths into a body at one location; sensing electromagnetic radiation at the wavelengths emerging from the body at a plurality of distances from the one location; and ascertaining biochemical component characteristics in

The method, comprising: directing electromagnetic radiation at one or more wavelengths into a body at one location; sensing electromagnetic radiation at the wavelengths emerging from the body at a plurality of distances from the one location; and ascertaining biochemical component characteristics in the body as a function of differences in a negative logarithm of the electromagnetic radiation sensed for the wavelengths at the plurality of distances, and a scattering coefficient relative to the wavelengths at each of the distances.