| 入射角对激光点位精度的影响研究 |
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| 引用本文： | 袁国根. 入射角对激光点位精度的影响研究[J]. 适用技术之窗, 2014, 0(12): 19-23 |
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| 作者姓名： | 袁国根 |
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| 作者单位： | 江西省水利规划设计院,江西南昌330029 |
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| 摘 要： | 三维激光扫描中的点位精度受光斑的影响较大，而光斑大小又受扫描特征（入射角和光斑）的影响较大，因此需要分析入射角及距离对光斑大小的影响程度。本文在分析以往光斑大小的基础上，将入射角和扫描距离引入到光斑大小计算模型中，推导了任意入射角及任意扫描距离情况下的光斑大小计算模型，并通过实例分析了入射角及距离对光斑大小的影响状况，确定了最佳的入射角及扫描距离范围。
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| 关 键 词： | 三维激光扫描 扫描特征 光斑 入射角 扫描距离 |
Research on the Influence of Incident Angle to Laser Positional Accuracy |
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| Yuan Guogen. Research on the Influence of Incident Angle to Laser Positional Accuracy[J]. Science & Technology Plaza, 2014, 0(12): 19-23 |
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| Authors: | Yuan Guogen |
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| Affiliation: | Yuan Guogen ( Jiangxi Water Conservancy Planning Design Institute, Jiangxi Nanchang 330029 ) |
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| Abstract: | The positional accuracy of 3D laser scanning is strongly influenced by light, and the light spot size is strongly affected by scanning characteristics （incident angle and light spot）, so we need to analyze the influence of incident angle and distance to the size of light spot. Based on the analysis of previous light spot size, this paper introduces the incident angle and scanning distance in the spot size calculation model, deduces the light spot size calculation model under the arbitrary incidence angle and any scanning distance, analyzes their effects to light spot size, and then determines the optimal incident angle and scanning distance scope. |
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| Keywords: | 3D Laser Scanning Scanning Characteristic Spot Light Angle of Incidence Scanning Distance |
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