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Fixed-point crucible, fixed-point temperature realizing apparatus using the crucible and temperature calibration method
Fixed-point crucible, fixed-point temperature realizing apparatus using the crucible and temperature calibration method
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机译:使用坩埚和温度校准方法的定点坩埚,定点温度实现装置
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摘要
The present invention is to realize fixed points in a temperature region exceeding the melting point of copper, thereby highly accurately calibrating all the thermometers used in a high temperature region such as a radiation thermometer, a thermocouple, and the like. A fixed-point crucible 1 comprises a crucible composed of carbon and a fixed-point material of high melting point enclosed in the wall of the crucible. The fixed-point material is carbon-metal eutectic structure. The crucible 1 is disposed in a temperature-variable furnace 6, the environmental temperature of the crucible 1 is increased and decreased by the temperature-variable furnace 6, the temperature of the cavity in the crucible 1 at the time is measured with a thermometer 9 and the thermometer 9 is calibrated from the state of the temperature variation measured.
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