实用的热电阻测温电路设计  

Design of the practical temperature measurement circuit with thermal resistance

作　　者：刘麒[1] 张莉[1] 王影[1] 

机构地区：[1]吉林化工学院信息与控制工程学院,吉林吉林132022

出　　处：《吉林化工学院学报》2011年第11期84-86,共3页Journal of Jilin Institute of Chemical Technology

摘　　要：以Pt100为例,介绍一种实用的热电阻测温电路设计方法.解决了三线制测温电路设计中A/D丢码问题,在相同的A/D转换精度前提下,提高了测温的分辨率和精度.该方法对热电阻测温仪表设计具有普遍的借鉴意义.Taking Pt100 as an example, this paper measurement circuit with thermal resistance. The introduces the design procedure of the practical temperature problem of dropout of A/D in 3-wire system temperature measurement circuit is solved so that the resolution and accuracy of measurement are increased on the premise of the equal A/D conversion accuracy. This method is hoped to provide guidance for the design of temperature measurement instrument with thermal resistance.

关 键 词：PT100 非线性补偿 噪声干扰 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]