串联光纤传感器网络中重叠光纤布拉格光栅传感器的温度测量

Q3 Physics and Astronomy

Results in Optics Pub Date : 2024-03-07 DOI:10.1016/j.rio.2024.100649

Sugumar Venkatesan , Manju Mohan , Pandian Chelliah

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引用次数: 0

摘要

传感器网络中的光纤布拉格光栅（FBG）已被广泛用于结构健康和过程监控。可用于此类传感器网络的具有不同波长的光纤布拉格光栅的数量受到所用激光器带宽的限制。具有重叠光谱的 FBG 无法在串联传感器网络中进行检测，因为它们会相互影响。时分多路复用（TDM）、码分多址（CDM）等方法已被用于询问重叠的 FBG。TDM 受限于功率预算系统，而 CDM 则受限于可使用的 FBG 数量。我们提出了一种基于神经网络的频谱分复用（SPDM）方案，用于监测串联光纤传感器网络中的重叠 FBG。

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Temperature measurement of overlapped fiber Bragg grating sensors in a series fiber sensor network

Fiber Bragg Gratings (FBGs) in a sensor network have been widely used for structural health and process monitoring. The number of FBGs with distinct wavelength that can be used in such a sensor network is limited by the bandwidth of the laser used. FBGs, with overlapping spectra cannot be interrogated in a series sensor network since they shadow each other. Methods like time division multiplexing (TDM), code division multiplexing (CDM) have been used to interrogate overlapped FBGs. TDM is limited by the power budget system and CDM is limited by the number of FBGs can be used. We propose a neural network based Spectral Division Multiplexing (SPDM) scheme, to monitor overlapped FBGs in a series fiber sensor network.

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来源期刊

Results in Optics Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

2.50

自引率

0.00%

发文量

115

审稿时长

71 days