Distributed discrimination of strain and temperature based on Brillouin dynamic grating in an optical fiber
Distributed discrimination of strain and temperature based on Brillouin dynamic grating in an optical fiber
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DOI：
10.1007/s13320-013-0130-7
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发表时间：
2013-10
期刊：
影响因子：
4.4
通讯作者：
K. Hotate;Weiwen Zou;R. K. Yamashita;Zuyuan He
中科院分区：
文献类型：
--
作者：
K. Hotate;Weiwen Zou;R. K. Yamashita;Zuyuan He
本文综述了基于光纤神经系统的光纤分布式应变和温度识别技术。首先介绍了基于特殊设计光纤中布里渊增益谱的多个共振峰的初步方法。介绍了基于保偏光纤中布里渊动态光栅的应变和温度的完全鉴别。介绍了基于光纤神经系统的分布式识别的基本原理和两种实验方案。在真实的工业应用中，标准系统的有效测点约为50个，改进系统的有效测点约为1000个，具有高分辨精度（0.1 °C-0.3°C，5 μ C-12 μ C）和高空间分辨率（± 10 cm）的性能。
This paper reviews distributed discrimination of strain and temperature by use of an optical fiber based on fiber optic nerve systems. The preliminary method based on multiple resonance peaks of the Brillouin gain spectrum in a specially-designed fiber is firstly introduced. The complete discrimination of strain and temperature based on the Brillouin dynamic grating in a polarization maintaining fiber is extensively presented. The basic principle and two experimental schemes of distributed discrimination based on fiber optic nerve systems are demonstrated. The performance of the high discriminative accuracy (0.1 °C–0.3°C and 5 μɛ–12μɛ) and high spatial resolution (∼10 cm) with the effective measurement points of about 50 for a standard system configuration or about 1000 for a modified one will be highly expected in real industry applications.