基于单片机控制的智能压力变送器设计与实现  

Design and Implementation of MCU-based Smart Pressure Transmitter

作　　者：袁锡明[1,2] 戴建华[1,2] 

机构地区：[1]江苏省无线传感系统应用工程技术开发中心,江苏无锡214153 [2]无锡商业职业技术学院,江苏无锡214153

出　　处：《化工自动化及仪表》2012年第5期608-611,共4页Control and Instruments in Chemical Industry

摘　　要：介绍了一款集压力测量、上下限报警、4～20mA输出、485通讯和液晶显示于一体的智能化压力探测器。探测器由智能传感器和智能电子板两部分组成,具有远程监控的功能。通过对相关参数的设定,可作为压力控制、监测或与上位机组成现场监控系统,它广泛应用于工业管道中弱腐蚀性液体、气体、蒸汽的测量和控制系统。A smart pressure transmitter which consisting of intelligent sensor and electric board and boasting of pressure measurement,upper and lower limits alarm,4-20mA output,485 communications and liquid-crystal display was presented to implement remote pressure control and to constitute a site monitoring system while having relevant parameters set or combing with the upper computer.It has wide application in measuring weak corrosive liquids,gases and steam in pipeline and in control system.

关 键 词：压力测量 单片机 4~20mA 信号转换 

分 类 号：TH86[机械工程—仪器科学与技术]