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US 5,128,020 AGranted
Gas detector
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsShiro Yamauchi, Masao Izumo, Shoji Tada
Life of this patent
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Abstract
A gas detector for detecting the decomposed SF.sub.6 gas produced by discharge in gas-insulated equipment. The gas detector operates as a cell generating voltage in proportion to the amount of the decomposed SF.sub.6 gas wherein the voltage is generated between the detection electrode including Ag, reacting upon contact by the decomposed gas and the opposing electrode including Ag also, both electrodes sandwiching the ionic conductive solid electrolyte layer including Ag ion therebetween.
Claims5
A gas detector comprising:
- a detecting electrode having a surface exposed to objective gas and containing at least a deposition layer of a metal element in a free state for reacting with said objective gas;
- an ionic conductive solid electrolyte layer formed on said detecting electrode and containing ions of said metal element;
- an opposing electrode which is formed on said ionic conductive solid electrolyte layer and containing a deposition layer of said metal element;
- an insulative support means for supporting said detecting electrode, said ionic conductive solid electrolyte layer and said opposing electrode, and isolating said ionic conductive solid electrolyte layer and said opposing electrode from gas;
- a first electric terminal connected with said detecting electrode;
- and
- a second electric terminal connected with said opposing electrode.
4 more elements
Dependencies are inferred from the claim text.