一种智能测量多点热敏电阻的温度巡检仪

A intelligent instrument of measuring temperature for multi-point thermistors

通过基于单片机AT89C52的温度巡回测量系统,着重介绍了热敏电阻三线制测量技术,对系统中信号输入通道、信号处理、数据显示等进行了阐述,并做了相应的理论分折,系统可以实现多点热敏电阻温度巡回采集处理的功能,应用于各种温度测量场合。

A tour temperature measuring system based on single c hip processor AT89C52 is designed. According to this system,the thermistor meas uring technique of threewire is introduced.The signal input cannel and signal process and data display in the system are described.The relative theoretical an alysis is presented.The technique of thermistor in multipoint temperature meas urements is used in the system.It can be used in different temperature measureme nt occasion.