热带海洋学报

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海底电缆绝缘油传感器的标定方法研究及优化

庄瑞雪1,许占堂2,施震2,张军1,谢梦圆1,熊兰兰 3,胡鑫3,赵科泉4   

  1. 1. 暨南大学广州市可见光通信重点实验室,广东 广州 510632;

    2. 热带海洋环境实验室, 中国科学院南海海洋研究所, 广东 广州 510301;

    3. 广东省海洋发展规划研究中心, 广东 广州 510220;

    4. 中国科学院大学, 北京 100049

  • 收稿日期:2025-08-20 修回日期:2025-09-06 接受日期:2025-09-08
  • 通讯作者: 施震
  • 基金资助:

    自然资源部2024年度部省合作项目(2024ZRBSHZ103);充油海缆绝缘液体微量检测方法研究(QT2023-09-79);广东省基础与应用基础研究基金(2025A1515012033)

Research and Optimization on Calibration of Marine Cable Insulation Oil Sensors

ZHUANG Ruixue1, XU Zhantang2, SHI Zhen2, ZHANG Jun1, XIE Mengyuan1, Xiong Lanlan3, HU Xin3, ZHAO Kequan4   

  1. 1. Guangdong Provincial Engineering Technology Research Center on Visible Light Communication, Jinan University, Guangzhou 510632, China;

    2. Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China;

    3. Guangdong Center for Marine Development Research, Guangzhou 510220, China;

    4. University of Chinese Academy of Sciences, Beijing 100049, China


    , University of Chinese Academy of Sciences 100049, China
  • Received:2025-08-20 Revised:2025-09-06 Accepted:2025-09-08
  • Supported by:

    The 2024 Annual Ministry-Provincial Cooperation Project of the Ministry of Natural Resources (2024ZRBSHZ103); Research on Trace Detection Methods for Insulating Liquids in Oil-filled Submarine Cables (QT2023-09-79); Basic and Applied Basic Research Foundation of Guangdong Province(2025A1515012033)

摘要: 海底电缆绝缘油传感器主要应用于海水中极低浓度绝缘油检测,相比常规的水中油类传感器而言,绝缘油检测对传感器标定流程和标准溶液制备提出了更严格的要求。本文提出新型标定方案,设计了非接触式倒置标定结构,通过避免探头接触溶液减少污染风险,提升操作便利性与标定准确性;采用了超声乳化技术制备标准溶液,更接近海水溢油事故中自然形成的水油乳液状态;系统探究了标定影响因素,验证环境光干扰可忽略,但需控制液面高度以降低气液界面信号干扰。与行业标准方法对比显示,本方案标定结果的相对偏差为​​6%-10%​​,在目标浓度范围内具备优异准确性。该方法为海洋生态环境监测提供了高可靠性技术支持。

关键词: 绝缘油, 传感器, 紫外荧光法, 标定

Abstract: The marine cable insulation oil sensors are primarily applied for detecting extremely low concentrations of insulating oil in seawater. Compared to conventional water-oil sensors, the detection of insulating oil imposes stricter requirements on sensor calibration processes and the preparation of standard solutions. This paper proposes a novel calibration scheme, featuring a non-contact inverted calibration structure designed to reduce contamination risks, thereby enhancing operational convenience and calibration accuracy. Additionally, ultrasonic emulsification technology is employed to prepare standard solutions, which more closely mimic the naturally formed water-oil emulsion state in seawater oil spill accidents. Furthermore, a systematic investigation into calibration-influencing factors reveals that environmental light interference is negligible, whereas controlling the liquid level height is necessary to mitigate signal interference at the gas-liquid interface. Subsequently comparative analysis with industry-standard methods demonstrates that the relative deviation of the calibration results under this scheme ranges from 6% to 10%, exhibiting excellent accuracy within the target concentration range. This method provides high-reliability technical support for marine ecological environment monitoring.

Key words: Insulating oil, Sensor, Ultraviolet fluorescence method, Calibration