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Laser & Optoelectronics Progress, Volume. 59, Issue 1, 0106005(2022)

Experimental Study on Temperature Sensitivity Coefficient of Long-Gauge Strain Sensor Encapsulated with Fiber

Bitao Wu1,2、*, Zefang Lin1,2, Yuanlai Zeng1,2, Zucai Lin1,2, and Huaxi Lu1,2
Author Affiliations
  • 1School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang , Jiangxi 330013, China
  • 2National Experimental Teaching Demonstration Center of Civil Engineering, East China Jiaotong University, Nanchang , Jiangxi 330013, China
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    Figures & Tables(5)
    Schematic of fiber grating structure and sensing

    Fig. 1. Schematic of fiber grating structure and sensing

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    Structure and physical image of long-gauge distance FBG sensor based on BFRP material packaging and sensitivity enhancement. (a) Structure drawing; (b) physical drawing

    Fig. 2. Structure and physical image of long-gauge distance FBG sensor based on BFRP material packaging and sensitivity enhancement. (a) Structure drawing; (b) physical drawing

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    Long-gauge length FBG sensor temperature test photos. (a) Outdoor temperature test; (b) indoor temperature test

    Fig. 3. Long-gauge length FBG sensor temperature test photos. (a) Outdoor temperature test; (b) indoor temperature test

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    Linear fitting of temperature difference of long-gauge FBG sensor at different wavelengths. (a) 1520 nm; (b) 1524 nm; (c) 1532 nm; (d) 1536 nm; (e) 1544 nm; (f) 1552 nm

    Fig. 4. Linear fitting of temperature difference of long-gauge FBG sensor at different wavelengths. (a) 1520 nm; (b) 1524 nm; (c) 1532 nm; (d) 1536 nm; (e) 1544 nm; (f) 1552 nm

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    Comparison of long-gauge FBG sensor and ordinary FBG sensor. (a) Temperature influence value; (b) difference comparison

    Fig. 5. Comparison of long-gauge FBG sensor and ordinary FBG sensor. (a) Temperature influence value; (b) difference comparison

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    Bitao Wu, Zefang Lin, Yuanlai Zeng, Zucai Lin, Huaxi Lu. Experimental Study on Temperature Sensitivity Coefficient of Long-Gauge Strain Sensor Encapsulated with Fiber[J]. Laser & Optoelectronics Progress, 2022, 59(1): 0106005

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Mar. 8, 2021

    Accepted: Apr. 22, 2021

    Published Online: Dec. 23, 2021

    The Author Email: Wu Bitao (wubitao@ecjtu.edu.cn)

    DOI:10.3788/LOP202259.0106005

    Topics

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