基于K型热电偶的多路温控系统的研究  

The research of tempration control system based on type-k thermocouple

作　　者：高智慧[1] 刘学平[1] 占涛[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《机械设计与制造》2011年第4期7-9,共3页Machinery Design & Manufacture

基　　金：国家科技支撑计划资助项目(2006BAF02A07)

摘　　要：对多种高温测量与控制系统进行了比较研究,设计了一种基于K型热电偶的多路温度采集与控制系统。该系统由以S3C2440 ARM9芯片为核心的上位机和以C8051F020单片机为核心的下位机构成。上位机用于人机界面交互,并通过Modbus串行通信协议控制下位机工作。下位机根据上位机发送的指令执行相应的温度采集动作,并根据上位机发送的预设温度曲线参数设置相应的PID参数,控制发热模块加热。实验结果表明,该系统测温范围大,测温精度高,系统稳定性好,能很好的满足各种工业温控需要。It compares various high temperature measurement and control system,then designs a multiple temperature acquisition and control system based on type-K thermocouple.This system is composed of a master machine whose core is S3C2440 ARM9 chip and a slaver machine whose core is C8051F020 SCM.The master machine is used for human-machine interface interaction,and controls the slaver machine through serial communication Modbus protocol.According to the instructions from the master machine,the slaver machine executes corresponding temperature collection action,sets the corresponding PID parameters,and controls the heating of heating module.Experimental results show that this system has wider measuring temperature range,higher temperature measurement precision and better stability,and can meet various industrial needs of temperature control.

关 键 词：K型热电偶 ARM MODBUS协议 温度测控系统 单片机 

分 类 号：TH811[机械工程—仪器科学与技术]