说明：  本设计的主要内容是用单片机系统进行温度实时采集与控制。温度信号由AD590K和温度／电压转换电路提供，对AD590K进行了精度优于正负0.1°C的非线性补偿，温度实时控制采用分段非线性和积分分离PI算法，其分段点是设定温度的函数。控制输出来用脉冲移相触发可控硅来调节加热丝有效功率。系统具备较高的测量精度和控制精度
(The main content of this design is to use real-time microcontroller system acquisition and control the temperature. Temperature signal from the AD590K and temperature/voltage conversion circuit provided on the AD590K was plus or minus 0.1 ° C accuracy of better than non-linear compensation, the temperature real-time control and integration with sub-linear algorithm for separation of PI and its sub-point is Set a function of temperature. Control output to trigger a pulse thyristor phase-shift effective power to regulate the heating wire. The system has a higher measurement precision and control accuracy)