Chinese Optics Letters, Volume. 14, Issue 2, 021201(2016)

Simultaneous measurement of vibration amplitude and rotation angle based on a single-channel laser self-mixing interferometer

Wu Sun1,2, Jianguo Liu1, Huaqiao Gui1、*, Anli Lu1, Huanqin Wang3, and Yihuai Lu1
Author Affiliations
  • 1Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China
  • 2University of Science and Technology of China, Hefei 230031, China
  • 3State Key Laboratory of Transducer Technology, Institute of Intelligent Machine, Chinese Academy of Science, Hefei 230031, China
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    Figures & Tables(5)
    Schematic of the experimental setup: optical fiber circulator (OC), optical fiber focuser (OF), loudspeaker (LS), laser diode (LD), and mirror (M).
    Typical LSM signal: (a) waveform, and (b) power spectrum.
    Linear fitting of (a) number of fringes N versus the vibration amplitude A0, and (b) peak frequency fi for i=1,2 versus vibration amplitude A0.
    Experimental waveforms for various values of θ: (a) 0.990°, (b) 1.020°, and (c) 1.029°.
    Experimental Pdif versus rotation angle θ.
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    Wu Sun, Jianguo Liu, Huaqiao Gui, Anli Lu, Huanqin Wang, Yihuai Lu, "Simultaneous measurement of vibration amplitude and rotation angle based on a single-channel laser self-mixing interferometer," Chin. Opt. Lett. 14, 021201 (2016)

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    Paper Information

    Category: Instrumentation, measurement, and metrology

    Received: Oct. 8, 2015

    Accepted: Dec. 11, 2015

    Published Online: Sep. 21, 2018

    The Author Email: Huaqiao Gui (hqgui@aiofm.ac.cn)

    DOI:10.3788/COL201614.021201

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