Method and apparatus for measuring the concentration of absorbin

Details Method and apparatus for measuring the concentration of absorbin Method and apparatus for measuring the concentration of absorbin

1990-04-19

1992-05-12

Rosenberger, Richard A.

Optics: measuring and testing

Blood analysis

128633, G01N 2159, G01N 3349

Patent

active

051121247

ABSTRACT:
A non-invasive system for measuring the concentration of an analyte in an absorbing matrix is described. The system directs a beam of radiation at the matrix. The beam consists of a series of successive alternate pulses of electro-magnetic radiation, one of which is highly absorbed by the analyte and the other of which is non-absorbed. The transmitted or reflected beam is optically detected and an electrical signal proportional to beam intensity is used to adjust the beam intensity and as a measure of analyte concentration.

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