Distributed Optical Fiber Sensors Based on Optical Frequency Domain Reflectometry: A review.

Distributed Optical Fiber Sensors Based on Optical Frequency Domain Reflectometry: A review.
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基于光频域反射计的分布式光纤传感器:综述

DOI:
10.3390/s18041072
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发表时间:
2018-04-03
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Liu T
Liu T
中科院分区:
其他
文献类型:
--
作者:
Ding Z;Wang C;Liu K;Jiang J;Yang D;Pan G;Pu Z;Liu T

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分布式光纤传感器提供了前所未有的特性,其中最独特的一种是能够监测光纤上物理化学参数的空间连续性变化。在众多的分布式传感技术中,光频域反射仪(OfDR)以其高空间分辨率和大动态范围而备受关注。此外,基于ofDR的DOF已被用于传感许多参数。在这篇综述中,我们将综述基于ofDR的DOFS提高传感范围、空间分辨率和传感性能的关键技术。介绍了基于光纤陀螺的光纤传感器的传感机理和应用,包括应变、应力、振动、温度、三维形状、流动、折射率、磁场、辐射、气体等。
Distributed optical fiber sensors (DOFS) offer unprecedented features, the most unique one of which is the ability of monitoring variations of the physical and chemical parameters with spatial continuity along the fiber. Among all these distributed sensing techniques, optical frequency domain reflectometry (OFDR) has been given tremendous attention because of its high spatial resolution and large dynamic range. In addition, DOFS based on OFDR have been used to sense many parameters. In this review, we will survey the key technologies for improving sensing range, spatial resolution and sensing performance in DOFS based on OFDR. We also introduce the sensing mechanisms and the applications of DOFS based on OFDR including strain, stress, vibration, temperature, 3D shape, flow, refractive index, magnetic field, radiation, gas and so on.
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