| 基于气氛保护的（300～1500）℃钨铼热电偶校准方法 |
| Method for (300~1500)℃Tungsten-Rhenium Thermocouples Calibration Based on Atmosphere protection |
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| 中文摘要: |
| 针对钨铼热电偶在（300～1500）℃温度范围内溯源存在的问题，在现有的卧式检定炉上基础上进行了改进。采用对称式保护气法进行校准，并增加了一套耐温腔体密封套件，可以抽真空并填充惰性保护气，防止热电偶被氧化。试验表明，该装置在真空与充气两种状态下对同一支被校热电偶的校准结果一致性良好，该套装置可以开展外径尺寸为（φ3～φ10）、长度大于450 mm套管式钨铼热电偶的校准。 |
| 英文摘要: |
| Aiming at the problem of Tungsten-Rhenium thermocouple tracing at a temperature of 300 to 1500 ℃, the prior horizontal-type calibration furnace is improved. It adopts a symmetric shielding gas method for calibration and adds a set of temperature-resistant cavity seal kit which can vacuumize and fill in inert gas to prevent thermocouple being oxygenized. The test shows that the device has good consistency in calibrating the same thermocouple under the vacuum and charging state; and this device can make calibration for extension-type tungsten-rhenium thermocouple with outer diameter betweenφ3～φ10 and length over 450mm. |
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| 中文关键词: 钨铼热电偶 高温热电偶 对称式保护气法 校准方法 热电偶校准 |
| 英文关键词:Tungsten-Rhenium Thermocouple High-Temperature Thermocouple Symmetric Shielding Gas Method Calibration Method Thermocouple Calibration |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2018.06.07 |
| 引用本文：吕国义，张贺，杨新圆，周杨.基于气氛保护的（300～1500）℃钨铼热电偶校准方法[J].计测技术,2018,38(6):. |
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