Optical sensor for fluorescence measurements

Details Optical sensor for fluorescence measurements Optical sensor for fluorescence measurements

1983-12-21

1986-12-30

Evans, F. L.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 83, 422 91, 436172, 2504581, G01N 2162

Patent

active

046328076

ABSTRACT:
In an optical sensor used mainly for determining the partial pressure of O.sub.2 or CO.sub.2 in respiratory gas includes a sample measuring chamber through which sample medium to be analyzed flows or into which it is fed, a reference measuring chamber containing a reference gas or a reference liquid of constant composition, a light source, a unitary excitation filter positioned between the light source and first sides of both the sample measuring chamber and the reference measuring chamber, a single fluorescent sensor element on the second sides of both the sample measuring chamber and the reference measuring chamber, and first and second detectors for detecting the fluorescence radiation from the fluorescent sensor element respectively based on the light passing thereto from the sample measuring chamber and the reference measuring chamber.

REFERENCES:
patent: 3725658 (1973-04-01), Stanley et al.
patent: 3854050 (1974-12-01), Peterson et al.
patent: 4003707 (1977-01-01), Lubbers et al.
patent: 4255053 (1981-03-01), Lubbers et al.
patent: 4269516 (1981-05-01), Lubbers et al.
patent: 4306877 (1981-12-01), Lubbers

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