多路法激光跟踪干涉测量系统的研究

Study on the Multi-Path Laser Tracking Measuring System

叙述了测量系统的工作原理,给出了测量一个运动物体三维坐标的计算方法,指出测量系统要进行自标定和测量,运动物体的"不同动点数"应大于9.简要分析了测量系统的组成、各自的工作原理、测量系统的误差来源与误差传递.最后通过实验验证了测量的可行性,得出测量速度为0.5m/s,测量不确定度为0.062mm.对于提高系统精度和可靠性,提供了可能的方向和有益的建议.

This paper explains the operational principal of the measuring system, derives the mathematical algorithm for calculating the three dimensional coordinates of the object in motion, demonstrates the necessity of conducting self calibration and measurement for the whole measuring system, and makes the conclusion that the number of 'different motive point on the moving object' should be over 9. It analyzes the measurement′s components and their operational principle. An analysis on the measurement errors is also included in the paper. The experiments showed the effectiveness of the measuring system. Measurement speed is around 0.5 m/s, while the measurement uncertainty is 0.062 mm. At the end of the paper, some suggestions for improving accuracy and reliability of this system are provided.