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Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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高灵敏度的萨格纳克干扰度温度传感器使用应力区域折射率调制的压力区域.

Juan Ruan, Xin Li, Ziqin Yang

    Journal of the Optical Society of America. A, Optics, image science, and vision
    |March 4, 2024
    PubMed
    概括

    这项研究展示了一种使用折射率调制的全纤维温度传感器. 这种新型传感器具有高灵敏度和线性,非常适合环境和工业应用.

    科学领域:

    • 光子学和光学传感器
    • 光纤传感器 光纤传感器
    • 材料科学 是一种材料科学.

    背景情况:

    • 准确的温度监测对于环境和工业过程至关重要.
    • 现有的光纤传感器在灵敏度,线性或制造复杂性方面面临挑战.
    • 折射率调制为增强传感器性能提供了一个潜在的途径.

    研究的目的:

    • 为了实验展示一种全新的全纤维温度传感器.
    • 调查拟议设备的温度传感特性.
    • 评估传感器是否适合实际应用.

    主要方法:

    • 传感器头的制造包括分极保持纤维 (PMF) 和多模式纤维 (MMF) 的部分.
    • 利用受控的融合拼接和PMF段的角旋转来诱导故意的折射率调制.
    • 将传感器头集成到 Sagnac 循环配置中,使用 3 dB 合器.
    • 在特定温度范围内对温度灵敏度和线性进行实验性表征.

    主要成果:

    • 成功演示了一种全纤维温度传感器.
    • 达到1.49nm/°C的高温灵敏度.
    • 在16°C至55°C范围内观察到温度测量的良好线性.

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  • 传感器制造过程非常简单.

    • 结论:

    • 提出的基于折射率调制的全纤维温度传感器是有效的.
    • 该传感器具有高灵敏度和良好的线性,适用于实际温度监测.
    • 其易于制造和性能使其成为环境监测和工业生产的有希望的候选人.