Method for obtaining a ratio measurement for correcting common p

Details Method for obtaining a ratio measurement for correcting common p Method for obtaining a ratio measurement for correcting common p

1987-11-24

1988-12-20

Evans, F. L.

Radiant energy

Luminophor irradiation

250227, 356417, G01N 2164

Patent

active

047926899

ABSTRACT:
A method for correcting common path variations in intensity in fiber optic chemical sensing devices uses a device for spatially separating light of different wavelength regions and a dye system selected so that light passing back to a measuring system along the fiber optic sensor consists of two wavelength regions. The first wavelength region varies with the concentration of analyte, and the other wavelength region is insensitive to the concentration of analyte.

REFERENCES:
patent: 4061578 (1977-12-01), Kleinerman
patent: 4558217 (1985-12-01), Aluas

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