Study On Optical Communications, Volume. 49, Issue 3, 46(2023)

High Accuracy Monitoring of Outer Strand Breakage of Optical Cable based on Optical Fiber Temperature Sensing

Yi-jun FENG* and Hao XU
Author Affiliations
  • Dongguan Power Supply Bureau of Guangdong Power Grid Co., Ltd., Dongguan 523000, China
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    Figures & Tables(12)
    Specific structure of the designed optical fiber temperature sensor system
    Connection mode between optical fiber temperature sensor and computer
    Operation flow of RS485 communication chip
    Cross sectional structure of two optical cables
    Experimental platform
    Temperature test results of the two experimental optical cables
    • Table 1. Specific technical indexes of the laser

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      Table 1. Specific technical indexes of the laser

      序号参数项目最大值典型值最小值
      1工作温度/℃6525-20
      2热敏TEC电阻值/kΩ10.510.09.5
      3TEC电压/V-3-
      4TEC电流/A-1.2-
      5监视器电流/mA--100
      6前向电压/V2.5--
      7工作电流/mA150100-
      8中心波长/nm-1 550-
      9输出功率/mW-10-
    • Table 2. Parameters of the designed optical fiber temperature sensor

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      Table 2. Parameters of the designed optical fiber temperature sensor

      序号参数项目具体参数
      1远传距离/km<5
      2测量误差/℃±0.5
      3测量范围/℃-30~150
    • Table 3. Structural parameters

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      Table 3. Structural parameters

      型号位置线材直径/mm根数材料
      24B1-45光纤0.25524G652D
      中心3.3001不锈钢管
      第1层3.300623%铝包钢绞线
      24B1-08光纤0.25524G652D
      中心2.500123%铝包钢绞线
      第1层2.400623%铝包钢绞线
      2.4001不锈钢管
      第2层3.0001030%铝包钢绞线
    • Table 4. Technical parameters

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      Table 4. Technical parameters

      序号项目24B1-45技术参数24B1-08技术参数
      1标称直径/mm9.913.3
      2标称重量/kg/km351595
      3铝包钢面积/mm254.080.0
      4铝合金面积/mm20.00.0
      5计算拉断力/kN67.890.0
      6拉重比/km18.916.4
      7等效杨氏模量/Gpa143.8129.1
      8热膨胀系数/×10-6/℃12.412.8
    • Table 5. Test results of signal-to-noise ratio

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      Table 5. Test results of signal-to-noise ratio

      传感器序号信噪比/dB
      24B1-4524B1-08
      1125136
      2136152
      3152163
      4142142
      5136152
      6128157
      7136136
      8152132
      9142152
      10153162
    • Table 6. Test results of response frequency

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      Table 6. Test results of response frequency

      传感器序号外部信号频率/次/s传感器最高响应频率/次/s
      24B1-4524B1-08
      16 0006 2306 310
      25 6205 7525 692
      36 2306 2586 420
      45 8205 8705 890
      55 4805 5695 563
      65 6605 6905 678
      74 9605 2015 129
      84 8804 9865 028
      95 2605 3625 320
      105 2805 3655 374
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    Yi-jun FENG, Hao XU. High Accuracy Monitoring of Outer Strand Breakage of Optical Cable based on Optical Fiber Temperature Sensing[J]. Study On Optical Communications, 2023, 49(3): 46

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    Paper Information

    Category: Research Articles

    Received: Jul. 25, 2022

    Accepted: --

    Published Online: Jun. 12, 2023

    The Author Email: Yi-jun FENG (cangweng2754580717@163.com)

    DOI:10.13756/j.gtxyj.2023.03.008

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