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基于法布里-珀罗激光二极管和双级光纤布拉格光栅光分路器的分布式同时应变和温度传感器的性能。

Performance of a distributed simultaneous strain and temperature sensor based on a Fabry-Perot laser diode and a dual-stage FBG optical demultiplexer.

机构信息

School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Buk-gu, Daegu 702-701, Korea.

出版信息

Sensors (Basel). 2013 Nov 12;13(11):15452-64. doi: 10.3390/s131115452.

DOI:10.3390/s131115452
PMID:24284773
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3871117/
Abstract

A simultaneous strain and temperature measurement method using a Fabry-Perot laser diode (FP-LD) and a dual-stage fiber Bragg grating (FBG) optical demultiplexer was applied to a distributed sensor system based on Brillouin optical time domain reflectometry (BOTDR). By using a Kalman filter, we improved the performance of the FP-LD based OTDR, and decreased the noise using the dual-stage FBG optical demultiplexer. Applying the two developed components to the BOTDR system and using a temperature compensating algorithm, we successfully demonstrated the simultaneous measurement of strain and temperature distributions under various experimental conditions. The observed errors in the temperature and strain measured using the developed sensing system were 0.6 °C and 50 με, and the spatial resolution was 1 m, respectively.

摘要

一种使用法布里-珀罗激光二极管（FP-LD）和双级光纤布拉格光栅（FBG）光分路器的同时应变和温度测量方法被应用于基于布里渊光时域反射（BOTDR）的分布式传感器系统。通过使用卡尔曼滤波器，我们提高了基于 FP-LD 的 OTDR 的性能，并使用双级 FBG 光分路器降低了噪声。将这两个开发的组件应用于 BOTDR 系统，并使用温度补偿算法，我们成功地在各种实验条件下演示了应变和温度分布的同时测量。使用开发的传感系统测量的温度和应变的观察误差分别为 0.6°C 和 50 με，空间分辨率为 1 m。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/b05dfe17632a/sensors-13-15452f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/0e9506e5ffd2/sensors-13-15452f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/daaaf45baccf/sensors-13-15452f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/c3e4d1fcb4a2/sensors-13-15452f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/6c1f01089520/sensors-13-15452f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/c7387eb3f7fb/sensors-13-15452f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/9a9db413f18c/sensors-13-15452f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/47f3b7f0b214/sensors-13-15452f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/99ca62078f2e/sensors-13-15452f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/b05dfe17632a/sensors-13-15452f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/0e9506e5ffd2/sensors-13-15452f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/daaaf45baccf/sensors-13-15452f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/c3e4d1fcb4a2/sensors-13-15452f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/6c1f01089520/sensors-13-15452f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/c7387eb3f7fb/sensors-13-15452f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/9a9db413f18c/sensors-13-15452f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/47f3b7f0b214/sensors-13-15452f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/99ca62078f2e/sensors-13-15452f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6e4e/3871117/b05dfe17632a/sensors-13-15452f9.jpg

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本文引用的文献

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Recent progress in distributed fiber optic sensors.分布式光纤传感器的最新进展。
Sensors (Basel). 2012;12(7):8601-39. doi: 10.3390/s120708601. Epub 2012 Jun 26.
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Using a Mach-Zehnder-interference-based passive configuration to eliminate the polarization noise in Brillouin optical time domain reflectometry.采用基于马赫-曾德尔干涉的无源配置来消除布里渊光时域反射仪中的偏振噪声。
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基于反射匹配光纤布拉格光栅（FBG）方案的高分辨率和响应速度FBG传感询问方法
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