• Journal of Applied Optics
  • Vol. 42, Issue 5, 884 (2021)
Qiong WU1, Wei LIU1,*, Zhilong ZHOU1, Yuxin WANG1, and Yi YUE2
Author Affiliations
  • 1School of Mechanical Engineering, Dalian University of Technology, Dalian 116033, China
  • 2Beijing Spacecraft Manufacturing Factory Co.,Ltd., Beijing 100080, China
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    DOI: 10.5768/JAO202142.0503002 Cite this Article
    Qiong WU, Wei LIU, Zhilong ZHOU, Yuxin WANG, Yi YUE. Structured light scanning measurement method based on mechanical splicing[J]. Journal of Applied Optics, 2021, 42(5): 884 Copy Citation Text show less
    Splicing measurement system
    Fig. 1. Splicing measurement system
    Scanner measurement coordinates transformation
    Fig. 2. Scanner measurement coordinates transformation
    Flow chart of algorithm
    Fig. 3. Flow chart of algorithm
    Physical picture of measurement system
    Fig. 4. Physical picture of measurement system
    Point cloud fitting of target sphere
    Fig. 5. Point cloud fitting of target sphere
    Calibration target scale and verification target scale
    Fig. 6. Calibration target scale and verification target scale
    Support feature surface objects and point cloud splicing
    Fig. 7. Support feature surface objects and point cloud splicing
    Z轴方向 精度/μm [X]×[Y] 分辨率/μm 标称 精度/μm 工作 距离/mm 视野 范围/mm
    220~251287+2527×45~30×45
    Table 1. Key parameters of scanner
    传感器 分辨率/μm 行程/mm单向重复 定位精度/μm 双向重复 定位精度/μm 最大 负载/N
    0.1204±0.1±0.21000
    Table 2. Key parameters of translation platform
    外参数值标准差
    $\cos {\alpha _1}$0.025 815 72.985 0e-13
    $\cos {\theta _1}$0.999 5571.292 9e-06
    $\cos {\beta _1}$0.014 825 68.753 2e-05
    $\cos {\alpha _2}$0.999 5102.274 7e-07
    $\cos {\theta _2}$−0.024 519 83.784 0e-11
    $\cos {\beta _2}$−0.019 459 51.167 9e-05
    Table 3. External parameters of measurement system
    1-2球心距1-3球心距1-4球心距1-5球心距
    球序号No.124.777149.784269.689299.542
    No.224.778149.790269.694299.548
    No.324.777149.794269.701299.554
    No.424.778149.781269.696299.546
    No.524.780149.809269.708299.556
    No.624.777149.818269.697299.549
    No.724.778149.813269.700299.553
    No.824.777149.812269.711299.565
    验证 结果 平均值24.778149.800269.699299.551
    实际值24.758149.842269.716299.546
    标准差0.0010.0140.0070.007
    RMSE0.0190.0440.0180.008
    Table 4. Partial data of sphere-center distance mm
    面序号高度差
    10.004
    23.312
    33.296
    4−0.005
    Table 5. Height difference between feature surface and datum plane mm
    Qiong WU, Wei LIU, Zhilong ZHOU, Yuxin WANG, Yi YUE. Structured light scanning measurement method based on mechanical splicing[J]. Journal of Applied Optics, 2021, 42(5): 884
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