基于HART协议的多变量智能变送器设计  

Design of Multi-variable Smart Transmitter Based on HART Protocol

作　　者：梁雪松[1] 谭航[1] 余波[1] 罗李林 

机构地区：[1]成都师范学院物理与工程技术学院,成都611130

出　　处：《成都师范学院学报》2015年第11期116-120,共5页Journal of Chengdu Normal University

基　　金：成都师范学院2013年院级科研立项(编号:CS13ZB02)

摘　　要：为了实现以HART协议同时传输温度和湿度信号,文章设计了以MSP430G2553为MCU,采用MTH02A模块进行温度与湿度采集,以数字转换器AD421、信号调制与解调器A5191为物理层的多变量智能变送系统。测试结果表明,本系统实现了温湿度的测量,并具有低功耗、性能稳定等优点。In order to realize simultaneously transmitting temperature and humidity signals,this paper designs a multi- variable smart transmitter system which uses MSP430G2553 as MCU,applies MTH02 A for temperature and humidity data acquisition,and uses D / A converter AD421 and signal modulator- demodulator A5191 as the physical layer.The test results show that the system has realized the measurement of temperature and humidity,and has the advantages such as low power consumption and stable performance.

关 键 词：现场总线 HART协议 二线制 

分 类 号：TP212.6[自动化与计算机技术—检测技术与自动化装置]