Measuring and testing – Gas analysis – Gas chromatography
Patent
1983-09-15
1985-09-24
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Gas chromatography
G01N 2712
Patent
active
045426406
ABSTRACT:
A gas detecting system for determining the presence and concentrations of a number of selected toxic, combustible, or reducing gases in an atmosphere. The system includes a plurality of semiconductor gas sensors, each of which differs from each of the others in its response to at least one of the selected gases. The system includes a means of processing the responses of each sensor to produce an indication of each of the gas concentrations. The system may also produce indications of the measurement accuracy of each gas concentration, which can be used to determine the presence of gases not selected for detection.
REFERENCES:
patent: 4164862 (1979-08-01), Jackson
patent: 4432224 (1984-02-01), Typpo
patent: 4443791 (1984-04-01), Risgin et al.
patent: 4457161 (1984-07-01), Iwanaga et al.
"Research Progresses Toward a Selective MOS Gas Sensor", Paul K. Clifford, et al., Industrial Research & Development, Apr. 1982, pp. 143-148.
Kreitman Stephen A.
Meagher Thomas F.
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