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分布式光纤磁场传感器基于对极化敏感的OFDR

Yi Tang, Mengshi Zhu, Fufei Pang

|April 4, 2024

概括

开发了一种新的分布式光纤磁场传感器,使用偏振敏感光频域反射计 (POFDR). 这种传感器准确地测量磁场,具有良好的重复性和线性,改进了传统方法.

科学领域:

光电学是指光电子产品.
光纤光学传感传感器
磁力学测量是一种磁力学测量.

背景情况:

分布式光纤传感器提供远程和实时监控功能.
极化敏感光频域反射计 (POFDR) 是一种用于测量光纤参数的技术.
对于磁场传感的传统POFDR方法通常需要对输入偏振进行复杂的调整.

研究的目的:

提出和实验验证一个分布式光纤磁场传感器.
通过消除输入偏振调整的需要,克服传统POFDR的局限性.
为了实现准确可靠的磁场组件提取.

主要方法:

使用一个极化敏感的光频域反射计 (POFDR) 设置.
从测量的极化状态 (SOPs) 结合斯托克斯向量和倒置的穆勒矩阵.
提取累积的法拉第旋转来确定磁场成分.

主要成果:

开发的传感器成功测量了磁场组件.
实验验证表明传感器具有良好的可重复性和线性.
磁场传感器实现了19.4mT的测量误差.
测量的磁场变化显示了与应用场的高一致性 (相似性>0.98).

结论:

拟议的基于POFDR的传感器有效地以分布式方式测量磁场.
该方法通过避免输入偏振调整来简化传感过程.
该传感器在实际磁场传感应用中表现出有希望的性能.

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