Two-electrode gas analysis method for electrically sensing and c

Details Two-electrode gas analysis method for electrically sensing and c Two-electrode gas analysis method for electrically sensing and c

1975-07-10

1976-09-14

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204 1R, G01N 2746

Patent

active

039805301

ABSTRACT:
A gas analysis system includes a pair of electrodes disposed in a cell containing an electrolyte through which a sample gas containing an unknown quantity of a reactant gas is passed. The gas reacts with the electrolyte, which changes the electrical resistance of the electrolyte in proportion to the concentration of the reactant gas. The electrodes are part of an externally-powered monitoring circuit which alternately senses the resistance of the electrolyte and then generates a voltage between the electrodes in response to the sensed resistance, permitting a generating current to flow periodically in response to the sensed resistance, the generating current being proportional to the amount of gas reacting with the electrolyte.

REFERENCES:
patent: 2541578 (1951-02-01), Egalon et al.
patent: 2621671 (1952-12-01), Eckfeldt
patent: 3236759 (1966-02-01), Robinson
patent: 3314864 (1967-04-01), Hersch
patent: 3329599 (1967-07-01), Brewer
patent: 3713994 (1973-01-01), Shults et al.

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