隔离式两线制RTD测量系统设计  

Design of Isolated Two Wire RTD Measurement System

作　　者：李明 谢冲 张亦姝 LI Ming;XIE Chong;ZHANG Yishu(Xi'an Aeronautics Computing Technique Research Institute,AVIC,Xi'an 710068,China;Military Representative Bureau of Air Cargo stationed in Xi'an,Xi'an 710082;The 6th Military Representative Office of Air Cargo stationed in Xi'an,Xi'an 710068)

机构地区：[1]中国航空工业集团公司西安航空计算技术研究所,陕西西安710068 [2]空装驻西安地区军事代表局,陕西西安710082 [3]空装驻西安地区第六军事代表室,陕西西安710068

出　　处：《长江信息通信》2023年第9期94-97,共4页Changjiang Information & Communications

摘　　要：针对恶劣电磁环境中的温度测量问题,文章在研究对比了各种温度测量方案后,提出一种基于模拟隔离方式的RTD测量系统,并根据某大功率电机绕组测温的需求设计了两线制PT1000采集电路,经过实验室测量和实际使用达到了精确稳定的温度测量效果,同时通过电气隔离提高了测量系统的安全性。For the problem of temperature measurement in harsh electromagnetic environment,four measurement schemes were discussed.And based on analog isolation,one kind of RTD measurement circuit was designed to meet the requirement of measuring temperature of windings in a high power motor.The circuit has been proved feasible by a resistance box experiment It is working accurately and stably in the project,and the safety of the system is enhanced by the electric isolation technology.

关 键 词：恶劣电磁环境 隔离 RTD测量 

分 类 号：TN79[电子电信—电路与系统]