在信息技术高速发展，电子计算机广泛应用的今天，担负着信息采集任务的传感器在自动控制、信息处理技术中发挥着越来越重要的作用。因此让高中生接触简单的传感器，了解其工作原理，并亲自动手设计简单的温度自动控制电路，对提高学生学习科学技术的兴趣，培养学生的探索精神 With the rapid development of information technology and the widespread use of electronic computers, sensors responsible for information acquisition tasks are playing an increasingly important role in automatic control and information processing technologies. Therefore, the high school students are exposed to simple sensors to understand their working principles, and they have to design a simple automatic temperature control circuit to improve students’ interest in learning science and technology and cultivate their exploration spirit.