基于NTC热敏电阻的三种高精度测温系统研究  

Study with High Precision on Three Typical Temperature Measurement Based on NTC Thermistor

作　　者：范寒柏[1] 谢汉华[1] 

机构地区：[1]华北电力大学电子与通信工程系,河北保定071003

出　　处：《传感技术学报》2010年第11期1576-1579,共4页Chinese Journal of Sensors and Actuators

摘　　要：针对高精度测温的要求,提出了三种基于NTC热敏电阻的高精度测温系统。分别为恒压式测温系统,恒流式测温系统和双积分式测温系统。从系统构成、测温原理等方面对这三种测温系统进行了分析比较,指出各自特点。Aiming at the requirement of high-precision temperature measurement,this paper presented three typical temperature measurement systems with high-precision based on NTC thermistor.Three systems are constant voltage source temperature measurement system,constant current source temperature measurement system and double-integral principle temperature measurement system.From many aspects like the system constitute,measure principle etc,carry on the analysis comparison to temperature measurement system,and point out respectively a characteristics to these three kinds.

关 键 词：测温系统 NTC热敏电阻 恒压式 恒流式 双积分式 高精度 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]