基于速度三角波的激光跟踪仪动态定位误差校准技术的研究

Research on Calibration Technology of Dynamic Positioning Errorof Laser Tracker Based on Velocity Triangle Wave

激光跟踪仪作为大尺寸精密坐标测量仪器,其动态定位误差精度备受关注。而其校准技术还停留在静态校准和动态跟踪性能校准的状态下。在少有对激光跟踪仪动态定位误差校准的前提下,通过对激光跟踪仪的误差分析,提出了基于速度三角波的激光跟踪仪动态定位误差校准方法,并对校准模型中运动目标的规律和运动轨迹进行了分析,设计了激光跟踪仪校准实验。实验结果论证了校准方案的可行性和必要性,对最大测量速度赋予了更为详细的定义。

As a large-size precision coordinate measuring instrument, the precision of dynamic positioning error of laser trackers is concerned, however, it's calibration is still in the state of static calibration and dynamic tracking performance calibration. Under the premise of lacking the calibration of the dynamic positioning error of the laser tracker, a method for calibrating the dynamic positioning error of laser tracker on the basis of the speed triangle wave is put forward. The rule and motion trajectory of the moving object in the calibration model are analyzed, at the same time, the calibration experiment of laser tracker is designed, the result proves the feasibility and necessity of the calibration scheme, and gives a more detailed definition to the maximum measuring speed.