基于AD590的温度测控电路及应用

Temperature Measurement and Control Circuit and its Applications Based on AD590

介绍了基于AT89C51系列单片机的温度测控电路,它可对外界温度进行测量、误差修正、判定传感器故障与高温报警,并具有键盘控制和警情通讯显示功能,可以通过键盘根据当前环境和温度的需要设定温度的上下限。一旦测量温度超出设定温度范围,可以给出声光报警提示,单片机执行相应动作,对当前环境温度进行控制。

This article mainly introduces temperature--control circuit of AT89C51 series single--wing machine, which can measure the temperature outside, correct the errors, determine the sensor＇ s breakdowns, alarm the terribly-- high temperature, and has the indications of keyboard control and warning communications. It can set up the limitations of temperature by keyboard based on the current environment and temperature. Once it measures temperature beyond the limitations set up before,it can give out sound and light warning signals and as a respondence,the singlechip starts to work and control the current environment and temperature.