Journal of Applied Optics, Volume. 42, Issue 5, 919(2021)

Measurement method of repeated positioning accuracy of pinhole runnerbased on combination of laser and CCD

Weiyu LIANG... Chao YE, Qiu HU and Sheng LIU |Show fewer author(s)
Author Affiliations
  • Institute of Mechanical Manufacturing and Technology, China Academy of Engineering Physics, Mianyang 621900, China
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    Figures & Tables(15)
    Composition of measurement system
    Angular deviation of laser spot center
    Flow chart of automatic measurement
    Laser spot brightness under different exposure time
    Binary image
    Edge detection image
    Establishment of coordinate system
    Calculation results of circle fitting
    Experimental platform of pinhole runner
    Image before and after rotation
    Distribution of laser spot center
    X position deviation of laser spot center
    Y position deviation of laser spot center
    • Table 1. Measurement results of laser interferometer (°)

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      Table 1. Measurement results of laser interferometer (°)

      次数转动前转动后角度偏差平均值
      11.943 110.943 280.999 830.999 603
      21.843 190.843 390.999 80
      31.743 130.743 610.999 52
      41.643 120.643 280.999 84
      51.543 170.543 960.999 21
      61.443 270.443 850.999 42
    • Table 2. Measurement results of laser and CCD

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      Table 2. Measurement results of laser and CCD

      次数转动前/pixel转动后/pixel角度 偏差/(°) 平均值/ (°)
      1(1 163.54,791.065)(1 204.09,539.075)0.996 4650.996 549
      2(1 167.45,765.846)(1 208.52,513.916)0.996 558
      3(1 171.29,740.674)(1 212.93,488.930)0.996 202
      4(1 175.25,715.363)(1 217.37,463.690)0.996 236
      5(1 179.27,690.195)(1 221.96,438.548)0.996 506
      6(1 183.26,665.091)(1 226.67,413.354)0.997 326
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    Weiyu LIANG, Chao YE, Qiu HU, Sheng LIU. Measurement method of repeated positioning accuracy of pinhole runnerbased on combination of laser and CCD[J]. Journal of Applied Optics, 2021, 42(5): 919

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    Paper Information

    Category: LASER TECHNOLOGY

    Received: May. 5, 2021

    Accepted: --

    Published Online: Oct. 26, 2021

    The Author Email:

    DOI:10.5768/JAO202142.0507002

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