Apparatus and process for continuously monitoring concentrations

Details Apparatus and process for continuously monitoring concentrations Apparatus and process for continuously monitoring concentrations

1989-01-19

1991-01-15

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415318, 20415319, 2041532, 204406, 204410, 204412, 204426, G01N 27407

Patent

active

049851268

ABSTRACT:
A process and apparatus for continuously monitoring of concentrations of gaseous components in gas mixtures, with the exception of O.sub.2. The desired concentration values are obtained simultaneously and separately for the individual gas components, without disruption and with relatively greater accuracy, by a direct path. The concentration of the gaseous component is continuously measured with the aid of at least one electrochemical cell having at least one solid body which contains oxygen-ion-conducting material and a metal-oxide-containing electrode, and generates electrical signals which are a function of the concentration of the component. The measurement signals are electronically and automatically evaluated in a computer which converts them into concentration values. The converted values are compared with reference values of a program which has been programmed into the computer earlier.

REFERENCES:
patent: Re28792 (1976-04-01), Ruka et al.
patent: 3620931 (1971-11-01), Reichner
patent: 4391690 (1983-07-01), Lin et al.
patent: 4543176 (1985-09-01), Harada et al.
James A. Plambeck, "Electroanalytical Chemistry", pp. 27-28 (1982).

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