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Acta Photonica Sinica, Volume. 53, Issue 2, 0206005(2024)

A Vector Displacement Measurement Sensing Device Based on Fiber Bragg Grating and Its Experimental Study

Yong ZHENG1, Jie YU2、*, Hongkai CHEN3, and Xing YI4
Author Affiliations
  • 1College of River and Ocean Engineering，Chongqing Jiaotong University，Chongqing 400074，China
  • 2School of Civil Engineering，Chongqing University of Science and Technology，Chongqing 401331，China
  • 3School of City and Architecture Engineering，Zaozhuang University，Zaozhuang 277160，China
  • 4China Construction Fifth Engineering Division Crop，Ltd.，Changsha 410004，China
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    AbstractGet PDF(in Chinese)
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    Figures & Tables(8)
    Schematic diagram of the FBG-based vector displacement sensing device

    Fig. 1. Schematic diagram of the FBG-based vector displacement sensing device

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    Schematic diagram of sensing device deformation structure

    Fig. 2. Schematic diagram of sensing device deformation structure

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    Calibration tests of six groups of FBG sensing devices CSE

    Fig. 3. Calibration tests of six groups of FBG sensing devices CSE

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    Calibration results of six groups of FBG sensing devices CSE

    Fig. 4. Calibration results of six groups of FBG sensing devices CSE

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    Indoor model test of an accumulation slope and sensors layout

    Fig. 5. Indoor model test of an accumulation slope and sensors layout

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    Comparison of the monitored displacements on the surface of accumulation slope model

    Fig. 6. Comparison of the monitored displacements on the surface of accumulation slope model

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    Relative errors of the monitored displacements on the surface of accumulation slope model

    Fig. 7. Relative errors of the monitored displacements on the surface of accumulation slope model

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    • Table 1. Comparison between FBG sensing device and PIV for measuring displacement azimuth angle

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      Table 1. Comparison between FBG sensing device and PIV for measuring displacement azimuth angle

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      		Measurement point 1Measurement point 2Measurement point 3
      PIVFBGErrorPIVFBGErrorPIVFBGError
      147.11°46.29°-1.74%69.94°70.00°0.09%59.59°58.62°-1.63%
      242.39°45.08°6.35%49.23°53.86°9.39%72.16°69.27°-4.00%
      339.63°43.71°10.31%70.57°70.00°-0.81%71.30°70.00°-1.82%
      446.34°43.84°-5.40%72.72°70.00°-3.74%68.38°66.78°-2.33%
      544.88°45.43°1.22%66.80°68.86°3.07%67.65°68.13°0.71%
      642.32°39.61°-6.41%70.33°70.00°-0.47%69.24°68.07°-1.69%
      739.28°42.00°6.93%69.98°69.31°-0.96%69.85°70.82°1.38%
      843.18°40.47°-6.28%68.34°70.37°2.98%72.06°70.23°-2.54%
      945.11°41.54°-7.92%68.56°69.39°1.21%69.04°68.72°-0.46%
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    Yong ZHENG, Jie YU, Hongkai CHEN, Xing YI. A Vector Displacement Measurement Sensing Device Based on Fiber Bragg Grating and Its Experimental Study[J]. Acta Photonica Sinica, 2024, 53(2): 0206005

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jul. 17, 2023

    Accepted: Sep. 11, 2023

    Published Online: Mar. 28, 2024

    The Author Email: YU Jie (cquyujie@sina.com)

    DOI:10.3788/gzxb20245302.0206005

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology