变压器多路温度监控系统设计  

Design of multiplex temperature monitoring system for the transformer in transformer house

作　　者：马景利 智奇楠[2,3] 

机构地区：[1]天津航空凯通机电有限公司,天津300384 [2]河北省卫星导航技术与装备工程技术研究中心,石家庄050081 [3]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《天津职业技术师范大学学报》2012年第3期17-20,共4页Journal of Tianjin University of Technology and Education

基　　金："十二五"国家科技支撑计划项目(2011BAH05B01)

摘　　要：介绍了一种基于平衡电桥和电子开关矩阵实现的多路温度硬件测量系统以及软件实现监控的系统设计方案,详细介绍了应用电子开关矩阵MT8816组成的多点温度测量技术、平衡电桥实现的温度测量方式以及单片机程序和上位机软件程序的设计,并对该设计方案中的误差消除办法进行了分析。对于检测点较多的系统,采用本方案可以以最低的成本实现高精度的检测。A kind of hardware multiplex temperature measurement system, which realized with balanced bridge and electronic switch matrix, and the system design proposal realizing monitoring with software were recommended here. The multipoint temperature measuring technique composed of electronic switch matrix MT8816 and the temperature measuring method, realized with balanced bridge was introduced in detail. The design of the MCU program and the software program of upper machine were also introduced. The method to eliminate the error is analyzed systematically and designed in detail. Therefore, using the new plan designed here, it is possible to realize the high precision measurement at lowest cost.

关 键 词：多点温度检测 平衡电桥 电子开关矩阵 单片机 模拟信号 

分 类 号：TM641[电气工程—电力系统及自动化]