pt100温度测量研究

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1、苏州大学本科生毕业设计（论文）目录摘要·······················································（1）Abstract···················································（1）前言·······················································（1）第一章PT100·············································（

2、2）1.1PT100阻值与温度的关系··································（1）1.2PT100的各种接线方式····································（3）第二章ATmega16微处理器··································（4）2.1单片微机的发展-24-苏州大学本科生毕业设计（论文）··········································（4）2.2AVR单片机的特点······

3、··································（4）2.3AVR与51、PIC单片机的比较······························（5）2.4ATmega16的特性·········································（5）2.5ATmega16引脚说明·······································（8）第三章实验应用··········································

4、（11）3.1恒流源的设计···········································（11）3.2A/D转换·················································（11）3.3PT100温度计算数据的处理································-24-苏州大学本科生毕业设计（论文）（14）3.4查表方法················································（17）第

5、四章结论···············································（20）参考文献····················································（21）致谢························································（22）PT100温度测量研究摘要本文介绍了铂热电阻PT100的特性和PT100温度和阻值对应关系，采用16KB的8位AVR微控制器ATmega16协同工作。通

6、过恒流源将采集到的信号转换成电压信号；再经过A／D转换成数字信号并由单片机系统读取；单片机系统把读取到的数字信号进行识别处理，并换算成与温度对应的数字信号，最后再由LCD显示输出温度值。关键字：PT100、温度测量、单片机-24-苏州大学本科生毕业设计（论文）AbstractThisthesisintroducesthefeaturesofplatinumthermalresistancePT100,andthecorrespondingrelationsbetweentemperatureandre

7、sistanceonPT100.Duringtheexperiment,a8bits(16kb)AVRmicrocontrollerATmega16isused.Thesignalistransformedintovoltagesignalthroughaconstant-currentsource;thenthevoltagesignalistransformedintodigitalsignalbyA/D,andreadbyasinglechipsystem;afterthat,thesingle

8、chipsystemputsthedigitalsignalintoarecognitionprocess,thentransformeditintoadigitalsignalwhichcorrespondstothetemperature.Intheend,thetemperaturevalueisdisplayedthroughaLCDscreen.Keywords:PT100、Temperaturemeasurement、SCM前言在工业生产过程