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SF6 CRACKED GAS SENSOR FOR SF6-SEALED ELECTRIC EQUIPMENT
SF6 CRACKED GAS SENSOR FOR SF6-SEALED ELECTRIC EQUIPMENT
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机译：SF6密封电气设备用SF6裂纹气体传感器
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摘要
PURPOSE:To prevent output variation and variations in response speed and sensitivity due to effect of temperature of the atmosphere, by adding a temperature self-controllable heating element. CONSTITUTION:Electrodes 1a are provided on both sides of the surface of a sintered Al2O3 substrate 3 and a SF6 cracked gas sensitive film 2 is provided to connect the two electrodes 1a. A heating element 4 is provided on the back side of the substrate 3 sandwiching the both sides thereof with an electrode 1c. The heating element 4 is a temperature self-controllable heating element made up of material such as BaTiO3, having a switching function utilizing a Curie point and when connected to an external constant voltage power source (not illustrated) through a lead 19a and the electrode 1c, the element is maintained at a constant temperature. This enables the heating of the SF6 cracked gas sensor at a constant temperature, thereby stabilizing sensitivity and response speed while obtaining a stable output.
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