TEMPERATURE SENSOR FOR FUEL CELL

摘要

PROBLEM TO BE SOLVED: To solve the problem that a K-type thermocouple has degraded in a reducing atmosphere of hydrogen etc. in a short time.

SOLUTION: In this thermocouple type temperature sensor, a nickel-chromium alloy is used as before as KP (a positive electrode) of a thermocouple for measuring the temperature of and controlling gases having hydrogen as a principal component of temperatures between 600-1000°C to be used for a gas reforming device of solid high molecular fuel cells and as a fuel in solid oxide fuel cells. A nickel-copper alloy containing copper of 1.9-2.2% is used as KN (a negative electrode).

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