Infrared and Laser Engineering, Volume. 52, Issue 7, 20220878(2023)

Image rotation compensation mechanism of large field of view space camera and its optimization design

Shudi Liu1,2, Haiying Tian1, and Jianbing Shao1
Author Affiliations
  • 1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(18)
    System imaging coordinate system
    Simulation analysis of image rotation effect
    Schematic diagram of image rotation compensation mechanism
    Image rotation compensation principle
    Single flexible unit mechanism
    Image rotation compensation principle
    Relationship between flexibility of working direction and r, t
    Relationship between working direction accuracy and r, t
    Genetic algorithm flow chart
    (a) Optimized image rotation compensation mechanism; (b) Finite element model of image rotation compensation mechanism
    Displacement deformation simulation
    Stress deformation simulation
    Force-displacement test experiment of image rotation compensation
    Force-displacement diagram of image rotation compensation mechanism
    The first six modes of the system
    • Table 1. Test data of force-displacement experiment

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      Table 1. Test data of force-displacement experiment

      Outside force/NFirst placeSecond placeThird placeFourth placeAverage value/μm
      151312131312.75
      302020212020.25
      452928293129.25
      603939393738.50
      754747484947.75
      905957575857.75
      1056867686667.25
      1207678777977.50
      1358786888787.00
      1509897979596.75
    • Table 2. Comparison of force-displacement test data and simulation data

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      Table 2. Comparison of force-displacement test data and simulation data

      Outside force/ N Experimental data/ μm Simulation data/ μm Error
      1512.7512.921.3%
      3020.2520.220.16%
      4529.2529.701.5%
      6038.5039.332.1%
      7547.7548.952.5%
      9057.7558.741.7%
      10567.2568.461.8%
      12077.5078.190.88%
      13587.087.921.1%
      15096.7597.500.78%
    • Table 3. The first six modes natural frequencies of the system

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      Table 3. The first six modes natural frequencies of the system

      OrderNatural frequency/Hz
      First order252.41
      Second order1400.20
      Third order1400.41
      Fourth order1707.10
      Fifth order1707.1
      Sixth order1769.51
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    Shudi Liu, Haiying Tian, Jianbing Shao. Image rotation compensation mechanism of large field of view space camera and its optimization design[J]. Infrared and Laser Engineering, 2023, 52(7): 20220878

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    Paper Information

    Category: Optical design

    Received: Dec. 7, 2022

    Accepted: --

    Published Online: Aug. 16, 2023

    The Author Email:

    DOI:10.3788/IRLA20220878

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