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Acta Optica Sinica, Volume. 39, Issue 9, 0906008(2019)

Wirelessly Coupled Fiber-Bragg-Grating Sensor for Bushing-Temperature Monitoring

Wei He, Cui Zhang, Xinglin Tong*, Chengwei Deng, Fang Liu, Yuan Tao, and Yan Mao
Author Affiliations
  • National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan, Hubei 430070, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (15)
    Equations (0)
    References (20)
    Cited By (4)
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    Figures & Tables(15)
    Principle diagram of FBG sensing

    Fig. 1. Principle diagram of FBG sensing

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    Encapsulation structure diagram of FBG sensor

    Fig. 2. Encapsulation structure diagram of FBG sensor

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    Calibration fitting curves of sensors

    Fig. 3. Calibration fitting curves of sensors

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    Diagram of wirelessly coupled demodulation

    Fig. 4. Diagram of wirelessly coupled demodulation

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    Axial spacing versus insertion loss

    Fig. 5. Axial spacing versus insertion loss

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    Horizontal spacing versus insertion loss

    Fig. 6. Horizontal spacing versus insertion loss

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    Angle deviation versus insertion loss

    Fig. 7. Angle deviation versus insertion loss

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    Center wavelength or lateral spacing versus insertion loss of sensor 1

    Fig. 8. Center wavelength or lateral spacing versus insertion loss of sensor 1

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    Center wavelength versus insertion loss of sensor

    Fig. 9. Center wavelength versus insertion loss of sensor

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    Wireless coupling system diagram of petrochemical site

    Fig. 10. Wireless coupling system diagram of petrochemical site

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    Installation layout diagram of FBG sensor

    Fig. 11. Installation layout diagram of FBG sensor

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    Center wavelength experimental data of senor 1

    Fig. 12. Center wavelength experimental data of senor 1

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    Temperature and its error bar diagram of bushing

    Fig. 13. Temperature and its error bar diagram of bushing

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    • Table 1. Parameters of fitting curves

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      Table 1. Parameters of fitting curves

      SensorFitting curveLinear correlation coefficientMean-square error
      1y=1544.012+0.01034x0.99990.486
      2y=1545.988+0.01007x0.99970.461
      3y=1548.036+0.01019x0.99960.472

    • Table 2. Distribution table of different temperature differences

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      Table 2. Distribution table of different temperature differences

      Temperature difference /℃≤-0.4-0.3-0.2-0.10≥+0.1
      Beginning123211
      Ending233110
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    Wei He, Cui Zhang, Xinglin Tong, Chengwei Deng, Fang Liu, Yuan Tao, Yan Mao. Wirelessly Coupled Fiber-Bragg-Grating Sensor for Bushing-Temperature Monitoring[J]. Acta Optica Sinica, 2019, 39(9): 0906008

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Apr. 16, 2019

    Accepted: May. 27, 2019

    Published Online: Sep. 9, 2019

    The Author Email: Tong Xinglin (tongxinglin@whut.edu.cn)

    DOI:10.3788/AOS201939.0906008

    Topics

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