热电偶冷端温度硬件补偿方法  

Hardware Compensation Ways of Cold-junction Temperature in Thermocouple

作　　者：刘传清[1] 

机构地区：[1]襄樊学院物理学系,湖北襄樊441053

出　　处：《襄樊学院学报》2005年第2期15-18,共4页Journal of Xiangfan University

基　　金：襄樊学院院立科研项目(2002YA014)

摘　　要：测温过程中,要使热电势和所测温度是单值函数关系,必须进行冷端温度补偿.文中介绍了几种硬件冷端补偿方法及其原理.实际应用表明此方法具有电路简单、可靠性高等特点.In the process of measuring temperature, the cold-junction temperature must be compensated so that the thermoelectric potential is a single function of temperature measured. In this paper, some hardware compensation ways and its principles are introduced in details. And in practice, these ways are noted for their simple circuit and high reliability.

关 键 词：热电偶 冷端温度 冷端补偿 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]