数字式传感器在智能温度变送器设计中的应用  

The Application of Digital Transducer in Design of Intelligent Temperature Transmitter

作　　者：左岐[1] 

机构地区：[1]北方工业大学,北京100041

出　　处：《自动化仪表》2001年第4期18-20,共3页Process Automation Instrumentation

摘　　要：介绍了DS16 2 0温度传感器的工作原理及特点 ,提出了数字式热电偶参比端温度补偿的方法并将其用于智能温度变送器的设计中 ,克服了补偿电桥不能完全补偿的缺陷 ,提高了测量精度 ,降低了变送器的成本。The operational principle and features of DS1620 temperature transducer are introduced. The method of digital temperature compensation of Thermocouple reference junction is stated. The method is used in design of intelligent temperature transmitter. It overcomes the demerit of compensation bridge which cannot make complete compensation. Thus the measuring accuracy is enhanced and the cost of transmitter is decreased.

关 键 词：数字温度传感器 热电偶 温度补偿 线性化 温度变送器 

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]