单总线数字温度传感器DS1820及其应用

Principle of the DS1820 Temperature Sensor and Its Application

DS18 2 0温度传感器是一种单总线型温度测量器件 ,具有直接的数字信号 ,可采用总线供电 ,在同一根总线上可接多个传感器 ,构成多点测温网络 ,是温度场监控系统的理想选择。阐述了DS182 0型单总线器件的工作原理和使用方法 ,并给出了应用实例。

The DS1820 temperature sensor uses the 'one wire' protocol.The DS1820 is particlularly good for applications where many measurments need to be made,at a fair distance from the controlling unit.All the connected devices share the one cable; no need for a separate cable for each device back to the controller.The principle and implementation method of the DS1820 sensor are described,and an example of its application.