Combustibles sensor

Chemistry: electrical and wave energy – Processes and products

Patent

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Details

G01N 2746

Patent

active

041904990

ABSTRACT:
A gaseous mixture of oxygen and fuel (combustibles) is supplied to first and second electrodes disposed on opposite surfaces of an oxygen ion conductive solid electrolyte member wherein the electrodes are composed of different materials each exhibiting a different catalytic action on the gaseous mixture at a given temperature. The difference in oxygen potentials established at the respective electrodes as a result of the dissimilar catalytic action produces oxygen ion conductivity in the solid electrolyte cell which produces an electrical signal the magnitude of which is indicative of the combustible present in the mixture, i.e., methane, hydrogen, carbon monoxide, etc.

REFERENCES:
patent: B843038 (1976-02-01), Sandler
patent: 3558280 (1971-01-01), Panson et al.
patent: 3691023 (1972-09-01), Ruka et al.
patent: 3698955 (1972-10-01), Lilly et al.
patent: 3719564 (1973-03-01), Lilly et al.

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