Development of Linear Motion Mechanism for High-Precision Space Telescopes: Performance Assessment with a Large Number of Operations in Vacuum Environments

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Other Title
  • 高精度宇宙望遠鏡用直動機構の開発: 真空環境下での多数回駆動性能評価

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Description

Large-aperture space telescopes for high-precision astronomical measurements with high spatial resolution performance may require a linear motion mechanism for optimizing the focus of images on their focal plane detectors. The solar UV-Visible-near IR telescope (SUVIT) for the next generation solar observing mission (Solar-C) currently under feasibility study requires focus adjusting mechanisms for each of its focal plane instruments. For achieving 0.1 arcsec or better spatial resolution with about 1.4 m diameter aperture of the telescope, we have been newly developing a linear motion mechanism, called the focus mechanism assembly (FMA). High reliability performance with a large number of operations is required for the FMA as one of the mission critical components in the telescope, and the verification of the performance at the early phase of the mission development is essential for defining the telescope system design. With developing a proto-type mechanism, we tested the performance under vacuum environments and confirmed over 1x105 cycles of the back-and-forth motion in two different strokes. The confirmed number of operations is at least 5 times larger than the number of operations assumed on orbit.

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Details 詳細情報について

  • CRID
    1570854177857998336
  • NII Article ID
    110009894215
  • NII Book ID
    AA1192675X
  • ISSN
    13491113
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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