Digital Temperature Sensor DS18B20 Application in Multiple Temperature Measurement System

摘要

Digital temperature sensor DS18B20 has many advantages such as high accuracy, good exchange capacity, convenient of communication, high ability of resist interference. It can code temperature data directly, and transmit information through 1-wire bus. This paper first introduces the function, structure and principle of this sensor. Secondly, DS18B20 multiple temperature measurement system is introduced. This system is convenient to extend and repair, and can save a lot of cables compared with multiple temperature measurement system consisting of traditional sensors.