A rotary laser optoelectronic measurement system is used as part of a multistation network for large-scale metrology. The line-structured laser surface of the transmitter is regarded as an ideal plane for the intersecting measurement. This article presents how the rotary laser surface model can be optimized for large-scale optoelectronic measurement systems. Initially, the deformation of the laser surface caused by the assembly error in a cylindrical lens is analyzed by Zemax simulation and studied by a visual evaluation method based on a high-precision triaxis rotary table. Based on the analysis result, the folded linear surface model and the quadric surface model are applied to reestablish the laser surface model, respectively, to reduce the shape error. A high-precision 3-D coordinate field is designed to acquire an accurate surface parametric model and validate the fitness of the new models. The experimental results based on workshop measurement positioning system (wMPS) show that both optimization models are conducive to improving the fitting accuracy of laser surfaces, and the quadric surface model fits better when the surface shape is closer to the commonest two-folded linear model. Finally, optimizing the laser surface model plays an important role in improving the system measurement accuracy.

中文翻译：

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大型光电测量系统旋转激光表面建模与优化


旋转激光光电测量系统用作大规模计量多站网络的一部分。发射器的线结构激光表面被视为相交测量的理想平面。本文介绍了如何针对大型光电测量系统优化旋转激光表面模型。首先，通过Zemax仿真分析柱面透镜装配误差引起的激光表面变形，并通过基于高精度三轴转台的视觉评估方法进行研究。根据分析结果，分别应用折叠线性曲面模型和二次曲面模型重建激光曲面模型，以减小形状误差。设计了高精度3D坐标场来获取精确的表面参数模型并验证新模型的适用性。基于车间测量定位系统（wMPS）的实验结果表明，两种优化模型都有利于提高激光表面的拟合精度，并且当表面形状更接近最常见的二次线性模型时，二次曲面模型拟合得更好。最后，优化激光表面模型对于提高系统测量精度具有重要作用。