温度控制是许多机器的重要的构成部分。它的功能是将温度控制在所需要的温度范围内，然后进行工件的加工与处理。PID控制系统是得到广泛应用的控制方法之一。在本文中，将详细讲叙本套系统。-Temperature control is important in many machine components. Its function is to control the temperature in the temperature range required, then the machining and processing. PID control system is widely used control methods. In this article, spoke of the sets of the system in detail.