Galvanic cell type gas concentration sensor system capable of de

Details Galvanic cell type gas concentration sensor system capable of de Galvanic cell type gas concentration sensor system capable of de

1993-04-07

1995-05-16

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204412, 204431, G01N 27404

Patent

active

054157609

ABSTRACT:
A galvanic cell type gas sensor which utilizes the respective merits of galvanic cell type and polaro type gas sensors so that a plurality of gasses can be detected by one sensor. One working electrode is utilized in conjunction with two or more counter electrodes which are different in kind from each other. Each of the electrodes are individually selected corresponding to a type of gas to be detected. Also, drift in the measurement of one of the detected gasses can be corrected based upon the measurement of another of the detected gasses.

REFERENCES:
patent: Re31914 (1985-06-01), Oswin et al.
patent: 3503861 (1970-03-01), Volpe
patent: 3556950 (1971-01-01), Dahms
patent: 3622487 (1971-11-01), Chand et al.
patent: 3902982 (1975-09-01), Nakagawa
patent: 4568445 (1986-02-01), Cates et al.

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