热电偶测温过程中温度跳跃问题的分析及处理  

Analysis and Treatment of the Temperature Jump Problem in the Measurement of Thermocouple

作　　者：尹代冬[1] 谢锴[1] 

机构地区：[1]中南大学能源科学与工程学院,湖南长沙410083

出　　处：《计测技术》2011年第6期31-32,55,共3页Metrology & Measurement Technology

基　　金：国家"863"计划资助项目(2009AA064603)

摘　　要：通过对热电偶在测量温度中出现的温度跳跃问题进行分析,对其可能产生故障的原因逐一排查并提出解决方案,重点分析了热电偶在串入附加地电势后导致温度跳跃的原因。本文的研究对于在使用热电偶进行实际工程测量时具有一定指导作用,并对该问题的理论研究具有一定借鉴意义。Contraposing the temperature jump problem in the temperature measurement of thermocouple,the paper makes analysis and research,and checks the possible breakdown reasons one by one and to propose solutions,The reason for the temperature jump problem after inserting additional ground potential in the measurement of thermocouple is mainly analyzed.The research of this paper has certain guidance functions to the actual engineering measurement with thermocouples,and has meaning to the theoretical research of this question for reference.

关 键 词：热电偶 热电效应 热电势 地电势 温度跳跃 

分 类 号：TK311[动力工程及工程热物理—热能工程]