1500~2300℃高温热电偶校准中关键影响因素分析及试验  

Key Influencing Factors Analysis and Test of High Temperature Thermocouple Calibration at 1500 ~ 2300 ℃

作　　者：张贺[1] 杨新圆[1] 陈炜[1] 王小龙[1] 

机构地区：[1]中航工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2016年第2期34-37,共4页Metrology & Measurement Technology

摘　　要：介绍了高温热电偶校准炉原理及其结构,对校准过程中钨管膨胀和石英窗口等关键影响因素进行了研究,并通过B偶、PtRh40-PtRh20、Ir40Rh-Ir、钨铼等高温热电偶进行了试验验证。实验结果表明高温热电偶校准炉重复性良好,可用于1500~2300℃氧化和还原气氛下各种高温热电偶的校准。This paper introduces the principle and structure of a high temperature thermocouple calibration furnace,and studies on the key influencing factors such as tungsten tube expansion and quartz window. The results of the experiments by B,PtRh40-PtRh20,Ir40Rh-Ir,and tungsten-rhenium thermocouple in high temperature range show that the high temperature thermocouple calibration furnace has a good reproducibility. It can be used to calibrate all kinds of high temperature thermocouples within the range of 1500 ~ 2300 ℃ at oxidizing or reducing atmosphere.

关 键 词：PtRh40-PtRh20 Ir40Rh-Ir 钨铼热电偶 高温热电偶 校准 

分 类 号：TB942[一般工业技术—计量学]