本文详细讨论了用单回路数字调节器组成激光固体单晶拉制自动控径系统的方案,系统的构成方法,给出了系统主要环节的所有实用程序。通过系统仿真实验,不仅证明了用这种单回路调节器组成的控径系统可以节省设备投资。系统简单可靠,操作维护容易。而且也验证了由于采用一些新的控制方法,系统能够收到满意的效果。 This paper discusses in detail the scheme and system of laser solid single crystal drawn automatic control system composed of single loop digital regulator and gives all the practical procedures of the main part of the system. Through the system simulation experiment, it not only proved that the control system composed by this single-loop regulator can save the equipment investment. System is simple and reliable, easy to operate and maintain. But also verified that due to the adoption of some new control methods, the system can receive satisfactory results.