High-Speed FBG-Based Fiber Sensor Networks for Semidistributed Strain Measurements

被引：18
|
作者：
Yan, Lianshan [1 ]
Wu, Zongling [1 ]
Zhang, Zhiyong [1 ]
Pan, Wei [1 ]
Luo, Bin [1 ]
Wang, Ping [2 ]
机构：
[1] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Ctr Informat Photon & Commun, Chengdu 610031, Sichuan, Peoples R China
[2] Southwest Jiaotong Univ, Sch Civil Engn, Chengdu 610031, Sichuan, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2013年 / 5卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Fiber Bragg grating (FBG); fiber optic sensors; strain measurement; sensor networks; GRATING SENSOR; TIME-DIVISION; DEMODULATION; LASER; ENHANCEMENT; SENSITIVITY; SYSTEM;
D O I：
10.1109/JPHOT.2013.2258143
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Conventional fiber-Bragg-grating (FBG)-based sensor networks based on either wavelength-or time-division-multiplexing (WDM or TDM) schemes may suffer from low interrogation speed with moving mechanical parts or inevitable crosstalk between nodes with the same Bragg wavelength. In this paper, by incorporating both TDM and WDM schemes into matched FBG-based sensor networks and facilitated by the high-speed electronic platform, we achieve 400-kHz sampling speed for each sensor node with a 5-meter spatial resolution. Semidistributed strain measurement is demonstrated on a turbine blade model with results comparable to those by accurate spectral analyses.
引用
收藏
页数：7
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