热电偶和热电阻的区别与应用简介

Essential difference between the thermocouple and thermal resistance

温度在冶金和化工等行业中既是重要的热工参数也是主要的控制指标之一,是生产物料的化学和物理变化的重要条件。热电偶与热电阻均属于温度测量中的接触式测温器件,尽管其作用相同,但是它们的原理与特点适用环境却不尽相同。本文介绍了两者的区别和适用条件,供相关方面仪表人员参考。

Temperature in metallurgy and chemical industry is not only an important thermotechnical parameters is also one of the main control target, is the important condition of production material of chemical and physical changes.Thermocouple and thermal resistance are in temperature measurement of the contact temperature measurement devices, although the effect is the same, but they are the principle and characteristic of the applicable environment is different.This paper introduces the difference between the two and the applicable condition, as a reference instrument related aspects.