A Model of Dual Fabry-Perot Etalon-Based External-Cavity Tunable Laser Us...
Internal motion within pulsating pure-quartic soliton molecules in a fibe...
Enhanced light emission of germanium light-emitting-diode on 150 mm germa...
The Fabrication of GaN Nanostructures Using Cost-Effective Methods for Ap...
Negative-to-Positive Tunnel Magnetoresistance in van der Waals Fe3GeTe2/C...
Quantum Light Source Based on Semiconductor Quantum Dots: A Review
A High-Reliability RF MEMS Metal-Contact Switch Based on Al-Sc Alloy
Development of a Mode-Locked Fiber Laser Utilizing a Niobium Diselenide S...
Development of Multiple Fano-Resonance-Based All-Dielectric Metastructure...
Traffic Vibration Signal Analysis of DAS Fiber Optic Cables with Differen...
官方微信
友情链接

Demonstration of High-Resolution DFB Fiber Laser Acoustic Emission Sensing System for CFRP Laminates

2021-09-23

 

Author(s): Zhang, JX (Zhang, Jianxiang); Huang, WZ (Huang, Wenzhu); Zhang, WT (Zhang, Wentao); Li, F (Li, Fang); Du, YL (Du, Yanliang)

Source: IEEE SENSORS JOURNAL Volume: 21 Issue: 17 Pages: 18806-18814 DOI: 10.1109/JSEN.2021.3088973 Published: SEPT 1 2021

Abstract: This paper proposes an interrogation method to improve the resolution of DFB (distributed feedback) fiber laser acoustic emission (AE) sensing system. In this method, the coefficients of three ellipses formed by every two-channel interference fringe are estimated using bias-corrected ellipse-specific fitting (BCESF). The system parameters can be further corrected using the coefficients of the three ellipses. A resolution of 2 x 10(-7) pm/root Hz at 100 kHz, which is approximately 10 dB higher than the traditional method, is achieved using the system parameters correction. The carbon fiber reinforced plastic (CFRP) laminates tensile test shows that the improved DFB fiber laser AE sensing system exhibits better performance than the PZT sensor. The damage initiation, damage spread, and instability stages of CFRP laminates' failure process can be accurately recognized.

Accession Number: WOS:000692613100058

ISSN: 1530-437X

eISSN: 1558-1748

Full Text: https://ieeexplore.ieee.org/document/9453828



关于我们
下载视频观看
联系方式
通信地址

北京市海淀区清华东路甲35号(林大北路中段) 北京912信箱 (100083)

电话

010-82304210/010-82305052(传真)

E-mail

semi@semi.ac.cn

交通地图
版权所有 中国科学院半导体研究所

备案号:京ICP备05085259-1号 京公网安备110402500052 中国科学院半导体所声明