Solid state sensor for anhydrides

Details Solid state sensor for anhydrides Solid state sensor for anhydrides

1976-08-30

1981-08-04

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2758

Patent

active

042820782

ABSTRACT:
The invention concerns a detector for anhydrides, present in the air or stack gases, which comprises a solid state electrolyte element containing oxy-anions of the particular anhydride to be detected. This solid state element is provided with metal areas to which potentiometric measuring means are connected. The detecting element is, preferably, sintered and may consist of one or several juxtaposed solid state compounds, according as the reference source is a gas or a solid state electrode, respectively. The electrolyte element is heated to a temperature not exceeding its fusion point. In addition, particular arrangements are provided to compensate for the oxygen content variations in air due to varying measurement conditions.

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patent: 3847672 (1974-11-01), Trocciola et al.
patent: 3974054 (1976-08-01), Poolman et al.

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