国产φ0.1mm金铁-镍铬热电偶热电势-温度关系研究  

EMF CHARACTERISTIC OF CHINESE AuFe/NiCr THERMOCOUPLE

作　　者：毛玉柱[1] 林鹏[1] 张庆庚[1] 岳奕[1] 

机构地区：[1]中国科学院低温计量测试站,北京100080

出　　处：《低温物理学报》1992年第1期75-80,共6页Low Temperature Physical Letters

摘　　要：本文给出了低温量热广泛使用的直径0.1mm 的金铁(0.7%原子比)对镍铬热电偶的热电势-温度参考表,考查了从一轴丝材连续组对50支2米长的热电偶在四个温度点上的热电势发散情况,根据5支热偶的多点分度结果提出了简单分度方法.The emf characteristic of Au + 0.07 at % Fe/90% Ni + 10% Cr thermocouple with 0.1mm in diameter was studied in the temperature range between 1.7 and 280K. The thermoelements were made by the Chongqing Institute of Materials for Instruments in China. The results in emf and divergence at the boiling points of four refrigerants were obtained from fifty thermocouples with 2m in length, which the positive and negative thermoelements from same batches respectively were combined one by one. A reference table is reported here and an exchangeability of 0.3K in the temperature range below the ice point could be got using a two-point calibration scheme.

关 键 词：热电偶 热势 发散 热偶丝 

分 类 号：TH811.04[机械工程—仪器科学与技术]