基于 MCS51 单片机的热电偶测温系统

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1、济南大学自动化与电气工程学院专业综合实训报告综合实训题目：基于MCS51单片机的热电偶测温系统所属实训环节：电气信息类专业综合实训学生姓名宁刚学号：20120321203班级：自动化1201指导教师：王新江计划实训时间：2015.10.12~2015.11.06自动化与电气工程学院制基于MCS51单片机的热电偶测温系统摘要：k型热电偶由两种不同成份的导体（称为K型丝材或热电极）两端接合成回路，当接合点的温度不同时，在回路中就会产生电动势，从而把温度信号转换为电压信号。本次实训利用这一原理，通过单片机AT89C51实现温度检测、1602显示与声光报警。关键词：k型热电偶AT89C511602声

2、光报警ThermocoupletemperaturemeasurementsystemAbstract:ktypethermocoupleconsistsoftwokindsofdifferentingredientsofconductor(calledktypewireorhotelectrode)synthesisloopatbothends,whenthejunctiontemperatureisnotatthesametime,inthecircuitwillgenerateelectromotiveforce,soastoconverttemperaturesignaltovolt

3、agesignal.Thepracticaluseofthisprinciple,bySCMAT89C51temperaturedetection,displayandsoundandlightalarm1602.Keywords:ktypethermocouple;AT89C51;1602;soundandlightalarm1一、技术指标................................................................................................................31、基本要求........

4、.................................................................................................32、发挥部分.........................................................................................................3二、系统整体框图.................................................................................

5、.......................3三、实训内容................................................................................................................4四、硬件电路设计........................................................................................................41、主控模块.....................................

6、....................................................................52、温度信号二级放大模块.................................................................................53、A/D转换模块..................................................................................................64、显示模块......................

7、...................................................................................75、声光报警模块.................................................................................................86、按键模块..........