Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1980-01-31
1982-10-19
Smith, Alfred E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250345, G01J 100
Patent
active
043552331
ABSTRACT:
A method and apparatus is disclosed for selectively determining by non-dispersive infrared techniques the concentration of a gaseous constituent in a sample gas mixture while determining and discounting deleterious effects of spectrally interfering gases in the sample gas mixture.
REFERENCES:
patent: 3770974 (1973-11-01), Fertig
patent: 3925667 (1975-12-01), Staab
patent: 4204768 (1980-05-01), N'Guyen
Proceedings of the Society of Photo-Optical Instrumentation Engineers, "A Multigas Analyzer for Automobile Exhausts", Pembrook et al., Aug. 26-27, 1976, vol. 95, pp. 84-91.
Environmental Science & Technology, "Unique Ambient CO Monitor Based on Gas Filter Correlation: Performance & App.", Chaney et al., vol. 11, No. 13, Dec. '77, pp. 1185-1190.
Horiba Model A1A-21-AS Gas Analyzer.
Cederstrand Carl N.
Keenan Charles A.
Warnke Dale F.
Beckman Instruments Inc.
Harder P. R.
Howell Janice A.
Jason E. C.
Smith Alfred E.
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