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Geometrical Model of Laser Triangulation System Based on Synchronized Scanners

机译:基于同步扫描仪的激光三角剖分系统的几何模型

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摘要

In traditional synchronized scanning system, the trajectory of the 3D scanning point is modeled as a circle when the thickness of rotated mirror is assumed to be zero. In this paper, a novel method to model the geometric measurement of synchronized scanning triangulation in the unfolded light path is proposed. Unlike most existing recent works, the 3D coordinate of the target is reasoned from the geometrical model, which includes all 14 system parameters. Further, the performance of the system precision can be analyzed and the importance of the thickness of rotated mirror is confirmed. In the experiment, a synchronized scanning system is developed. The experimental result demonstrates that the value of measurement uncertainty at a distance of 0.5m is 0.75mm and at a distance of 5m is 6.68mm. The standard deviations from the measurement point to the fitting plane at a distance of 0.5 m and 5 m are 1.10 mm and 19.73 mm, respectively.
机译:在传统的同步扫描系统中,当旋转镜的厚度假定为零时,将3D扫描点的轨迹建模为圆形。本文提出了一种在未折叠光路中对同步扫描三角剖分的几何测量建模的新方法。与大多数现有的最新作品不同,目标的3D坐标是根据包括所有14个系统参数的几何模型得出的。此外,可以分析系统精度的性能,并确定了旋转镜厚度的重要性。在实验中,开发了同步扫描系统。实验结果表明,距离0.5m处的测量不确定度值为0.75mm,距离5m处的测量不确定度为6.68mm。在0.5 m和5 m的距离上,从测量点到装配平面的标准偏差分别为1.10 mm和19.73 mm。

著录项

  • 来源
    《Mathematical Problems in Engineering》 |2019年第7期|3503192.1-3503192.10|共10页
  • 作者

    Tu Dawei; Jin Pan; Zhang Xu;

  • 作者单位

    Shanghai Univ Sch Mechatron Engn & Automat Dept Mech Engn & Automat 149 Yanchang Rd Shanghai 200072 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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