Optics and Precision Engineering, Volume. 30, Issue 11, 1344(2022)

Structure design of two-axis fast steering mirror for aviation optoelectronic platform

Songnian TAN1...2,3,*, Fuchao WANG1,2, Yongsen XU1,2, Yefei WANG1,2,3, and Quanchao LI1,23 |Show fewer author(s)
Author Affiliations
  • 1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun30033, China
  • 2University of Chinese Academy of Sciences, Beijing100049, China
  • 3Key Laboratory of Airborne Optical Imaging and Measurement, Chinese Academy of Sciences, Changchun100, China
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    To meet the demanding requirements of the aeronautical optoelectronic platform for surface accuracy and dynamic performance of the visible/infrared dual-band two-axis fast steering mirror, a lightweight flat mirror assembly and a flexible structure have been specifically designed. First, the design method of the fast steering mirror structure is summarized, their design elements are clarified, and the influence of assembly error is analyzed. A lightweight mirror supporting the center of the back is designed, and the high-precision assembly of the motor is realized through a positioning fixture. Then, based on the cross-shaped flexible bearing, the design of the biaxial flexible structure is realized. Finally, the surface accuracy and mode of the fast steering mirror are simulated and tested. The test results show that the surface shape accuracy (RMS) of the flat mirror is greater than 0.017λλ=632.8 nm), the closed-loop bandwidth of the fast steering mirror is higher than 200 Hz, and the position errors in both the X- and Y-directions are less than 1.2 μrad. As a result of achieving high surface accuracy and dynamic performance, the miniaturization and modularization of a fast steering mirror are realized, allowing them to function stably and reliably in complex aviation environments.

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    Songnian TAN, Fuchao WANG, Yongsen XU, Yefei WANG, Quanchao LI. Structure design of two-axis fast steering mirror for aviation optoelectronic platform[J]. Optics and Precision Engineering, 2022, 30(11): 1344

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    Paper Information

    Category: Micro/Nano Technology and Fine Mechanics

    Received: Dec. 15, 2021

    Accepted: --

    Published Online: Jul. 4, 2022

    The Author Email: TAN Songnian (tansongnian@126.com)

    DOI:10.37188/OPE.20213000.0757

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