基于专用温度传感器的温度检测系统.doc

摘要在现代工业领域温度检测系统是指用某种方式显示出当前的环境温度。传统使用PTC或NTC电阻作为温度传感器的方式在使用过程中存在着很多不足之处比如所采集温度的精度比较低、系统的可靠性差、设计难度较大、整体设计成本较高等缺点已经无法满足现代工业生产中高精度温度控制的需求。而采用专用温度传感器则可以在克服以上缺点很大程度上提高温度检测系统的性能。本文阐述了一个基于专用温度传感器AD590的高精度温度检测系统的设计和实现过程。整个设计包括使用AD590的模拟温度采集传感器专用仪表放大器AD620的信号处理系统由ADC0804构成的模数转换电路采用AT89C52组成的单片机系统数码管显示系统和整机所需的供电系统。关键字温度检测系统AD590AT89C52Ⅰwww.docin.comAbstractThetemperaturechecksysteminmodernindustryisthatusessomespecialmethodtoprocessanddisplaytheenvironmentaltemperature.TraditionusesPTCorNTCresistancetobeusingprocesstotherebeexistingmuchdefectsasthetemperaturesensorwaysupposesthatwhatbedetectedthetemperaturehasabadaccuracysystematicreliabilityisbadhasmuchdifficultiestodesignandthecostofentiresystemisexpensive.Tousethismethodalreadyunablesatisfiedmodernindustryproducestheneedbeinghitbythehigh-accuracytemperatureunderthecontrol.Usethespecialtemperaturetransducercouldimprovethesystematicfunctionoftemperaturedetecting.Thisarticleelaboratedthehigh-accuracytemperaturehavingsetforthabecauseofspecialtemperaturetransducerAD590checksthemainbodyofabooksystematicallydesigningandrealizingprocess.Entiredesignisincluded:UsetheAD590temperaturetransducertodetecttheanalogtemperatureinstrumentationamplifierAD620signalprocesssystemchangetheanalogsignaltodigitalsignalcircuitofADC0804theAT89C52MUCsystemandthepowersystem.KeywordtemperaturechecksystemAD590AT89C52Ⅱwww.docin.com目录摘要.............................................................ⅠAbstract............................................................Ⅱ目录.............................................................Ⅲ绪论..............................................................11简介..........................................................21.2温度控制系统的国内外现状......................................21.3温度控制系统方案..............................................21.4论文的