数字温度传感器DS18B20在化学工业现场温度检测中的应用

The application of digital temperature sensor DS18B20 in the measuring of the chemical industry

针对单总线数字温度传感器DS18B20在读出数据时产生错误,从其操作时序分析了产生读出温度结果错误的原因,并在具体应用中进行了试验,验证了对错误的分析。介绍的DS18B20在单片机系统中对温度检测的原理及程序设计,对化学工业现场温度检测有一定的指导作用。

Aiming at the error data when reading the 1-wire bus digital temperature senser DS18B20 ,the causes are analyzed from the aspect of its timing diagram, and also it is validated while using it in specific application. The introduce of theory and program designing at the MCU system of temperature measurement maybe produce some directory effects in chemical and other industry fields.