Distributed Temperature Sensor Interrogator Based on Polarization-Sensitive Reflectometry

Crunelle C.; Legre M.; Wuilpart M.; Megret P.; Gisin N.

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Distributed Temperature Sensor Interrogator Based on Polarization-Sensitive Reflectometry

机译：基于偏振敏感反射法的分布式温度传感器询问器

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In this paper, a polarization-sensitive reflectometry technique has been investigated in order to serve as an interrogating device in distributed sensing applications. As the sensing fiber has a beat length of about a few centimeters, a high-resolution reflectometer was required. A coherent optical frequency-domain reflectometer (OFDR) was used from this perspective. The principle is based on the linear dependence of fiber beat length on temperature. The reported experimental results detail the calibration method and discuss the features of the interrogating device in terms of temperature threshold and spatial resolution. The proposed system, exploiting the Rayleigh backscatter signal, offers an interesting alternative to existing systems, mainly based on nonlinear effects.

机译：在本文中，已经研究了偏振敏感反射计技术，以便在分布式传感应用中用作询问设备。由于传感光纤的拍长约为几厘米，因此需要高分辨率反射仪。从这个角度来看，使用了相干光频域反射仪（OFDR）。该原理基于纤维拍频长度与温度的线性关系。所报告的实验结果详细介绍了校准方法，并从温度阈值和空间分辨率方面讨论了询问器的功能。拟议的系统利用瑞利背向散射信号，主要基于非线性效应，为现有系统提供了一个有趣的替代方案。

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《Sensors Journal, IEEE》 |2009年第9期|p.1125-1129|共5页
作者
Crunelle C.; Legre M.; Wuilpart M.; Megret P.; Gisin N.;
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正文语种 eng
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Beat length; coherent optical frequency-domain reflectometry (OFDR); distributed temperature sensing; optical time-domain reflectometry (OTDR); polarization;

机译：拍长;相干光频域反射法（OFDR）;分布式温度传感;光时域反射法（OTDR）;偏振;

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1. Centimeter Spatial Resolution Distributed Temperature Sensor Based on Polarization-Sensitive Optical Frequency Domain Reflectometry [J] . Li He, Liu Qingwen, Chen Dian, Journal of Lightwave Technology . 2021,第8期

机译：厘米空间分辨率分布式温度传感器基于偏振敏感光学频率域反射测量
2. Quasi-distributed Temperature Sensor Combining Fibre Bragg Gratings And Temporal Reflectometry Technique Interrogation [J] . C. Crunelle, C. Caucheteur, M. Wuilpart, Optics and Lasers in Engineering . 2009,第3a4期

机译：结合光纤光栅和时间反射技术的准分布式温度传感器
3. Simultaneous distributed measurement of the strain and temperature for a four-point bending test using polarization-maintaining fiber Bragg grating interrogated by optical frequency domain reflectometry [J] . Wada Daichi, Igawa Hirotaka, Murayama Hideaki Measurement . 2016,第Null期

机译：同时进行应变和温度的分布式测量，以进行四点弯曲测试，使用保偏光纤布拉格光栅通过光频域反射仪进行询问
4. Novel system to interrogate distributed fiber strain sensors and point temperature sensors based on pulse correlation and FBGs [C] . Antonio Bueno, Koji Nonaka, Salvador Sales International conference on optical fibre sensors . 2009

机译：基于脉冲相关和FBG询问分布式光纤应变传感器和点温度传感器的新型系统
5. Distributed Fiber Optic Sensors for Monitoring Spatially Continuous Strain and Quasi-Distributed Refractive Index Using Optical Frequency Domain Reflectometry [D] . Jothibasu, Sasi. 2018

机译：分布式光纤传感器，用于使用光学频率域反射测量监测空间连续应变和准分布折射率
6. Incoherent Optical Frequency-Domain Reflectometry Based on Homodyne Electro-Optic Downconversion for Fiber-Optic Sensor Interrogation [O] . Juan Clement, Haroldo Maestre, Germán Torregrosa, 2019

机译：基于Homodyne电下变频的非相干光频域反射法用于光纤传感器探询
7. Radiation Hardened Optical Frequency Domain Reflectometry Distributed Temperature Fiber-Based Sensors [O] . S. Rizzolo, E. Marin, A. Boukenter, 2015

机译：辐射硬化光学频率域反射区分布式温度纤维基传感器

Distributed Temperature Sensor Interrogator Based on Polarization-Sensitive Reflectometry

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