Infrared and Laser Engineering, Volume. 52, Issue 4, 20220423(2023)

Development and test of the Point Ahead Angle Mechanism for space gravitational wave detection

Weizhou Zhu1,2, Yong Xie1, Jianjun Jia1,2, Liang Zhang1,2, Ruihong Gao3, and Xue Wang1,2
Author Affiliations
  • 1Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
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    Figures & Tables(14)
    Schematic diagram of a traditional beam pointing mechanism
    [in Chinese]
    Design drawing of the PAAM
    Simplified motion state
    Modal analysis of the Point Ahead Angle Mechanism
    Flexible hinge stress diagram
    Rotation angle fitting line under different driving displacements
    Schematic diagram of rotation characteristic test
    Test results rotation characteristic
    Schematic diagram of optical path difference test device
    Test results of optical path difference
    Effect of temperature change on displacement
    • Table 1. Sixth order modal frequency

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      Table 1. Sixth order modal frequency

      Modal orderModal frequency/HzModal shape
      11157.4Rotating around Y
      23178.6None
      33483.3None
      43532.5None
      55553.1None
      66855.7None
    • Table 2. Main features of the overall design

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      Table 2. Main features of the overall design

      Design featuresValues
      Volume$ {\text{56 mm}} \times {\text{35 mm}} \times {\text{32 mm}} $
      MaterialTC4; AL6061; K9
      QualityAbout $ {\text{150 g}} $
      Mirror size${ {\varPhi 10 \; {\rm{mm} } } }$
      Surface accuracy${\lambda}/\text{30}\left(\text{RMS}; {\lambda=632}\text{.8 nm}\right)$
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    Weizhou Zhu, Yong Xie, Jianjun Jia, Liang Zhang, Ruihong Gao, Xue Wang. Development and test of the Point Ahead Angle Mechanism for space gravitational wave detection[J]. Infrared and Laser Engineering, 2023, 52(4): 20220423

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    Paper Information

    Category: Lasers & Laser optics

    Received: Jun. 21, 2022

    Accepted: --

    Published Online: Jul. 4, 2023

    The Author Email:

    DOI:10.3788/IRLA20220423

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