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CLC number: TP212.14
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2010-09-03
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Quasi-distributed sensing network based on coherence multiplexing and spatial division multiplexing for coal mine security monitoring
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Tian-hao Xia, Wei-sheng Liu, Bin Zhou, Bo-bo Gu, Chun-sheng Yan. Quasi-distributed sensing network based on coherence multiplexing and spatial division multiplexing for coal mine security monitoring[J]. Journal of Zhejiang University Science C, 2010, 11(10): 762-766.
@article{title="Quasi-distributed sensing network based on coherence multiplexing and spatial division multiplexing for coal mine security monitoring",
author="Tian-hao Xia, Wei-sheng Liu, Bin Zhou, Bo-bo Gu, Chun-sheng Yan",
journal="Journal of Zhejiang University Science C",
volume="11",
number="10",
pages="762-766",
year="2010",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.C0910716"
}
%0 Journal Article
%T Quasi-distributed sensing network based on coherence multiplexing and spatial division multiplexing for coal mine security monitoring
%A Tian-hao Xia
%A Wei-sheng Liu
%A Bin Zhou
%A Bo-bo Gu
%A Chun-sheng Yan
%J Journal of Zhejiang University SCIENCE C
%V 11
%N 10
%P 762-766
%@ 1869-1951
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C0910716
TY - JOUR
T1 - Quasi-distributed sensing network based on coherence multiplexing and spatial division multiplexing for coal mine security monitoring
A1 - Tian-hao Xia
A1 - Wei-sheng Liu
A1 - Bin Zhou
A1 - Bo-bo Gu
A1 - Chun-sheng Yan
J0 - Journal of Zhejiang University Science C
VL - 11
IS - 10
SP - 762
EP - 766
%@ 1869-1951
Y1 - 2010
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.C0910716
Abstract: A low-cost fiber Bragg grating (FBG) sensing system for coal-mine security monitoring is proposed in this paper. Based on the coherence multiplexing (CM) and spatial division multiplexing (SDM) techniques, this hybrid sensing network can support more than 40 sensors for quasi-distributed detection. It is demonstrated experimentally that the multiplexed sensing signal of each sensor can be clearly distinguished by an optical low-coherence reflectometry (OLCR). methane concentration is detected with maximum sensitivities of an intensity variation of 10.92% and a concentration variation of 1%, using a well-designed sensor structure. Strain and temperature are also detected by this system, which also exhibits good results in the experiment.
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