热电阻温度测量引线电阻消除方法分析  

Analysis of Lead Resistance Elimination Methods for Thermal Resistance Temperature Measurement

作　　者：吴胜华[1] 田海波[1] 许天骄 马伟东 Wu Shenghua;Tian Haibo;Xu Tianjiao;Ma Weidong(Guodian Nanjing Automation Co.,Ltd.,Nanjing,210032,China;Nanjing SAC Valmet Automation Co.,Ltd.,Nanjing,210061,China)

机构地区：[1]国电南京自动化股份有限公司,南京210032 [2]南京国电南自维美德自动化有限公司,南京210061

出　　处：《仪器仪表用户》2020年第4期30-32,共3页Instrumentation

摘　　要：在热电阻测量温度的应用场合中,引线电阻的存在会对温度测量精确度产生影响。首先,详细论述了引线电阻对热电阻温度测量精确度产生影响的原因,并就现在两种主流的消除引线电阻方法从原理、算法、以及优缺点方面进行了分析。In the application of temperature measurement by thermal resistance, the accuracy of temperature measurement will be affected by the presence of lead resistance. This article first discusses in detail the reasons why lead resistance affects the accuracy of the temperature measurement of thermal resistance, and analyzes the two mainstream methods for eliminating lead resistance from the principles, algorithms, advantages and disadvantages.

关 键 词：分散控制系统 引线电阻 精确度 RTD 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]