• Chinese Optics Letters
  • Vol. 19, Issue 9, 091202 (2021)
Hongwei Liang1, Yu Sun1, Zhen Huang2, Chunlei Jiang1、**, Zihua Zhang3, and Lingling Kan1、*
Author Affiliations
  • 1College of Electrical and Information Engineering, Northeast Petroleum University, Daqing 163318, China
  • 2School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, China
  • 3Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
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    Abstract

    A novel reconstruction method of nanometer micro-displacement of Fabry–Perot (F-P) interference is proposed in this study. Hilbert transforms are performed for F-P interference fringes, and the obtained signal performs tangent operation with the original signal. Finally, the validity of the proposed algorithm and the structure are verified by simulation and several experimental measurements for vibration. Results from the experiments show that the maximum relative error is 4.9%.
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    Hongwei Liang, Yu Sun, Zhen Huang, Chunlei Jiang, Zihua Zhang, Lingling Kan. Reconstruction of Fabry–Perot cavity interferometer nanometer micro-displacement based on Hilbert transform[J]. Chinese Optics Letters, 2021, 19(9): 091202
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    Category: Instrumentation, Measurement, and Optical Sensing
    Received: Dec. 24, 2020
    Accepted: Mar. 3, 2021
    Posted: Jun. 4, 2021
    Published Online: Jun. 15, 2021
    The Author Email: Chunlei Jiang (jiangchunlei_nepu@163.com), Lingling Kan (kll@nepu.edu.cn)