Journal of Applied Optics, Volume. 45, Issue 2, 438(2024)

Two-dimensional coordinate image measurement system based on angle intersection

Yao CHENG, Wenbin XU*, and Yunyang LIU
Author Affiliations
  • College of Mechanical Engineering, Chongqing University of Technology, Chongqing 400050, China
  • show less
    Figures & Tables(21)
    Overall block diagram of two-dimensional coordinate measurement system
    Schematic diagram of solving coordinates by angle intersection method
    Schematic diagram of system circuit
    Flow chart of master program
    Drive time-sequence diagram of TSL1401 linear array CCD
    Drive time-sequence diagram of ADC
    Drive time-sequence diagram of stepper motor
    Schematic diagram of CCD calibration by double-line method
    Calibration pattern
    Display diagram of sampling points mi and ni
    βi and least square linear regression equation for pixel values
    Two-dimensional coordinate image measurement system
    Polynomial fitting curve of measurement error for Y-axis coordinates
    Polynomial fitting curve of measurement error for X-axis coordinates
    Display of 2D coordinate measurement results
    • Table 1. Sampling points mi and corresponding pixel value test data

      View table
      View in Article

      Table 1. Sampling points mi and corresponding pixel value test data

      mi_XiCximi_XiCximi_XiCxi
      11148721526
      21099661620
      310310621716
      4981154189
      5911245195
      6841340200
      7781432
    • Table 2. Sampling points ni and corresponding pixel value test data

      View table
      View in Article

      Table 2. Sampling points ni and corresponding pixel value test data

      ni_XiCxini_XiCxini_XiCxi
      5.008.57812.033
      5.51149.07212.526
      6.01089.56613.020
      6.510310.06113.515
      7.09810.55414.09
      7.59011.04514.55
      8.08411.54015.01
    • Table 3. Image value and the corresponding βi data

      View table
      View in Article

      Table 3. Image value and the corresponding βi data

      CxiβiCxiβiCxiβi
      045.07873.332111.8
      11448.07278.826116.6
      10851.36684.320121.0
      10355.06190.015125.0
      9859.05495.79128.7
      9063.445101.35132.0
      8468.240106.71135.0
    • Table 4. Coordinate test data when Y=10

      View table
      View in Article

      Table 4. Coordinate test data when Y=10

      YXYtestXYtestXYtest
      10110.2289.861510.20
      10210.0799.871610.17
      10310.00109.911710.10
      1049.96119.971810.09
      1059.921210.04199.94
      1069.891310.12
      1079.871410.17
    • Table 5. Different Y-axis coordinate measurement data

      View table
      View in Article

      Table 5. Different Y-axis coordinate measurement data

      YY¯testΔYYY¯testΔY
      2.02.0450.0457.06.994−0.006
      2.52.5150.0157.57.5080.008
      3.03.0000.0008.08.0240.024
      3.53.491−0.0098.58.5310.031
      4.03.983−0.0179.09.0380.038
      4.54.481−0.0209.59.5340.034
      5.04.975−0.02510.010.0200.020
      5.55.474−0.02610.510.5060.006
      6.05.975−0.02511.010.988−0.012
      6.56.483−0.017
    • Table 6. Different X-axis coordinate measurement data

      View table
      View in Article

      Table 6. Different X-axis coordinate measurement data

      XX¯testΔXXX¯testΔX
      21.982−0.0181110.987−0.013
      32.984−0.0161211.977−0.023
      43.999−0.0011312.974−0.026
      55.0130.0131413.976−0.024
      66.0220.0221514.988−0.012
      77.0260.0261616.0010.001
      88.0210.0211717.0130.013
      99.0120.0121818.0260.026
      1010.000.0001919.0340.034
    Tools

    Get Citation

    Copy Citation Text

    Yao CHENG, Wenbin XU, Yunyang LIU. Two-dimensional coordinate image measurement system based on angle intersection[J]. Journal of Applied Optics, 2024, 45(2): 438

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Research Articles

    Received: Oct. 19, 2023

    Accepted: --

    Published Online: May. 28, 2024

    The Author Email: Wenbin XU (许文斌(1996—))

    DOI:10.5768/JAO202445.0203006

    Topics