Fault Self-Detection Technique in Fiber Bragg Grating-Based Passive Sensor Network

Chien Hung Yeh; Ning Tsai; Yuan Hong Zhuang; Chi-Wai Chow; Wen Feng Liu

doi:10.1109/JSEN.2016.2609458

Fault Self-Detection Technique in Fiber Bragg Grating-Based Passive Sensor Network

Chien Hung Yeh, Ning Tsai, Yuan Hong Zhuang, Chi-Wai Chow, Wen Feng Liu

Department of Photonics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

In this paper, we propose and experimentally investigate a fault self-detection technique in fiber Bragg grating (FBG)-based passive sensor network. Here, once a fault occurs on connecting fiber or FBG sensor, it can be detected directly by the proposed sensing network. Moreover, in the proposed FBG sensor system, the multiple wavelength-division-multiplexing FBG sensor numbers can be reduced significantly and also increase the sensing capability for sensing temperature and strain simultaneously. In the measurement, when the temperature variation is from 20 °C to 75 °C, the measured Bragg wavelength shift of tension is nearly 0.74 nm. While the strain shift of 0.3 mm is applied on FBG, the Bragg wavelength shift of nearly 1.88 nm is observed.

Original language	English
Pages (from-to)	8070-8074
Number of pages	5
Journal	IEEE Sensors Journal
Volume	16
Issue number	22
DOIs	https://doi.org/10.1109/JSEN.2016.2609458
State	Published - 15 Nov 2016

Keywords

Fiber Bragg grating (FBG)
fiber fault
optical sensor
self-detection

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abstract = "In this paper, we propose and experimentally investigate a fault self-detection technique in fiber Bragg grating (FBG)-based passive sensor network. Here, once a fault occurs on connecting fiber or FBG sensor, it can be detected directly by the proposed sensing network. Moreover, in the proposed FBG sensor system, the multiple wavelength-division-multiplexing FBG sensor numbers can be reduced significantly and also increase the sensing capability for sensing temperature and strain simultaneously. In the measurement, when the temperature variation is from 20 °C to 75 °C, the measured Bragg wavelength shift of tension is nearly 0.74 nm. While the strain shift of 0.3 mm is applied on FBG, the Bragg wavelength shift of nearly 1.88 nm is observed.",

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Fault Self-Detection Technique in Fiber Bragg Grating-Based Passive Sensor Network

Abstract

Keywords

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