热电偶冷端温度补偿电路的优化设计  

The optimum design of thermocouple cold junction compensation circuit

作　　者：沙占友 葛家怡[1] 王彦朋[1] 

机构地区：[1]河北科技大学信息学院,石家庄050054

出　　处：《电测与仪表》2003年第7期26-28,57,共4页Electrical Measurement & Instrumentation

摘　　要：热电偶是工业领域中应用最广的一种温度传感器,本文介绍了利用新型专用集成电路对热电偶冷端温度进行补偿的方法,其优点是速度快,电路简单,成本低廉,不需要调整,能获得最佳补偿效果,可在电子测量、工业仪表、自动化控制等领域推广。The thermocouple is a kind of temperature sensor that used the widest in the industrial field. The method of thermocouple cold junction compensation which utilizes the new-type ASIC is introduced.It have the merits such as high speed,the circuit is simple, low cost,no adjustment and can obtain the best compensation effect,and can be popularized in the fields of electronic measurement, industrial instrument and automation controls.

关 键 词：热电偶 冷端温度补偿 温度系数 串行接口 故障检测 温度传感器 优化设计 

分 类 号：TP212.11[自动化与计算机技术—检测技术与自动化装置] TH811[自动化与计算机技术—控制科学与工程]