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A fiber Bragg grating based passive semicircular sensor architecture with fault monitoring

机译：基于纤维布拉格光栅的无源半圆形传感器架构，具有故障监控

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摘要

In the investigation, we investigate a fiber Bragg grating (FBG) based semicircular sensor architecture with fiber fault monitoring experimentally. Two erbium-doped fiber amplifiers (EDFAs) are used in the monitoring center to generate a broadband light source for sensing the strain and temperature simultaneously. Here, we utilize six FBG based sensors with different reflected wavelength for proof-of-concept demonstration. There is no optical filter used in the FBG sensor system for wavelength-selection. In addition, the proposed sensor system can monitor one to two fiber faults. In the measurement, the temperature-and strain-induced changes are also analyzed and discussed. Therefore, the proposed multiple FBG based semicircular sensor system not only can sense the temperature and strain simultaneously, but also can be used to monitor where is the fiber fault.
机译：在调查中，我们通过实验研究了光纤故障监测的光纤布拉格光栅（FBG）的半圆形传感器架构。在监测中心使用两个掺铒光纤放大器（EDFAs），以产生宽带光源，用于同时感测应变和温度。在这里，我们利用六个基于FBG的传感器，具有不同反射波长的验证验证演示。 FBG传感器系统中没有用于波长选择的光学滤波器。此外，所提出的传感器系统可以监控一到两个光纤故障。在测量中，还分析并讨论了温度和应变诱导的变化。因此，所提出的多功能FBG的半圆形传感器系统不仅可以同时感测温度和应变，而且还可用于监测光纤故障的位置。

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