Optics and Precision Engineering, Volume. 30, Issue 2, 199(2022)

Research on on-line alignment technology with main optical-mechanical structure of Tianwen-1 high-resolution camera

Kejun WANG*... Jihong DONG, Shiyu ZHU, Wei LI and Qingyu MENG |Show fewer author(s)
Author Affiliations
  • Changchun Institute of Optics,Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
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    Figures & Tables(21)
    Layout of optical system of Tianwen-1 high-resolution camera
    Main optical-mechanical structure of Tianwen-1 high-resolution camera
    Process of alignment
    Surface shape error of primary mirror assembly
    Surface shape error of secondary mirror assembly
    Surface shape error of tertiary mirror assembly
    Surface shape error of focusing mirror assembly
    Optical detection path of system wavefront aberration
    Enviroment of system alignment
    Field of view layout of system
    System wavefront aberration convergence curve
    System wavefront aberration after precision alignment
    Random vibration mechanical test
    Temperature cycling test environment of main optical-mechanical structure
    Weightlessness adaptability test of main optical-mechanical structure
    System wavefront aberration after environmental simulation tests
    Panorama of Mars
    Local detail picture of Mars
    • Table 1. Values of misalignment

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      Table 1. Values of misalignment

      自由度失调量
      第一次第二次第三次第四次
      次镜三镜次镜三镜次镜三镜次镜三镜
      DX/mm1.00.80.30.40.10.110.040.03
      DY/mm-0.6-0.5-0.18-0.20-0.07-0.090.050.02
      DZ/mm-0.7-0.4-0.20-0.19-0.06-0.050.020.01
      TX/″80752522151486
      TY/″6055201610866
    • Table 2. System wavefront aberration and transfer function after initial alignment and precision alignment

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      Table 2. System wavefront aberration and transfer function after initial alignment and precision alignment

      视场/(°)粗装调精装调
      波像差(λ)传函波像差(λ)传函
      (-0.1,+1)0.225 20.0730.094 50.344
      (-0.1,+0.66)0.214 90.0970.082 90.368
      (-0.1,+0.33)0.198 30.1200.066 00.393
      (+0.37,+0.33)0.204 80.0950.073 50.358
      (+0.37,0)0.198 70.1330.066 30.407
      (+0.37,-0.33)0.197 10.1070.065 00.377
      (-0.1,-0.33)0.193 50.1210.062 30.397
      (-0.1,-0.66)0.191 20.1190.060 20.392
      (-0.1,-1)0.198 90.1210.066 60.393
      全视场平均0.202 50.1100.070 80.381
    • Table 3. System wavefront aberration and transfer function after environmental simulation tests

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      Table 3. System wavefront aberration and transfer function after environmental simulation tests

      视场(°)波像差(λ)传函
      (-0.1,+1)0.095 00.334
      (-0.1,+0.66)0.087 80.364
      (-0.1,+0.33)0.072 30.390
      (+0.37,+0.33)0.084 00.356
      (+0.37,0)0.083 30.357
      (+0.37,-0.33)0.079 10.367
      (-0.1,-0.33)0.058 60.413
      (-0.1,-0.66)0.052 80.426
      (-0.1,-1)0.064 60.400
      全视场平均0.075 20.379
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    Kejun WANG, Jihong DONG, Shiyu ZHU, Wei LI, Qingyu MENG. Research on on-line alignment technology with main optical-mechanical structure of Tianwen-1 high-resolution camera[J]. Optics and Precision Engineering, 2022, 30(2): 199

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    Paper Information

    Received: Jan. 6, 2021

    Accepted: --

    Published Online: Mar. 4, 2022

    The Author Email: WANG Kejun (wangkejun1@163.com)

    DOI:10.37188/OPE.20223002.0199

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