针对现有任意反射面速度干涉仪（velocity interferometer system for any reflector, VISAR）装置中依靠人工准直光路的现状，同时为满足未来对远程自动化控制的需求，提出一种新的光路自动准直的方法。该方法通过互补金属氧化物半导体（complementary metal oxide semiconductor, CMOS）间接测量并以光斑的像素偏差为系统输入，通过系数矩阵转换和离散模糊反馈控制方法快速消除误差。基于Windows的控制和自动化技术（the Windows control and automation technology, TwinCAT）中视觉和运动等模块，将各模块分别运行在不同的实时内核中，消除了视觉与运动控制模块间的通信环节，实现了快速实时的闭环控制。经过冲击波速度测量实验验证，该系统实现了远程“一键式”自动准直，可将准直时间缩短到2 s，准直精度为4.5 μm，解决了现有装置人工调节效率不高的问题，提高了系统的精度和稳定性。

In response to the current situation of relying on manual alignment of the optical path in existing velocity interferometer system for any reflector(VISAR) devices, and to meet the future demand for remote automated control, a new method for automatic alignment of the optical path was proposed. The complementary metal oxide semiconductor (CMOS) of this method was measured indirectly, and the pixel deviation of the light spot was used as a system input. Coefficient matrix transformation and discrete fuzzy feedback control methods were used to quickly eliminate the errors. Based on the modules such as vision and motion in the Windows control and automation technology(TwinCAT), each of which was run in a different real-time kernel, the communication link between the vision and motion control modules was eliminated, and fast real-time closed-loop control was realized. After the experimental verification of shock wave velocity measurement, the remote "one-button" automatic alignment was realized. The system can shorten the alignment time to 2 s and improve the alignment accuracy to 4.5 μm. The problem of inefficient manual adjustment of the existing device was solved, and the accuracy and stability of the system were improved.