Application of Improved Empirical Mode Decomposition in Defect Detection Using Vibro-Ultrasonic Modulation Excitation-Fiber Bragg Grating Sensing

DOI

10.2991/icmia-16.2016.124How to use a DOI?

Keywords

Empirical mode decomposition, vibro-ultrasonic modulation, fiber Bragg grating

Abstract

The advantage of nonlinear ultrasonic method in micro defect detection has been widely recognized. It has higher sensitivity than linear ultrasonic. Vibro-ultrasonic modulation(VUM) method was adopted in the paper, and fiber Bragg grating(FBG) was used to sense nonlinear signal instead of piezoelectric patches innovatively because it is very easy for FBG to realize distributed measurement. Empirical mode decomposition(EMD) algorithm was improved and applied in the analysis of nonlinear signal. The results shows sidebands signal can be extracted successfully by the improved EMD algorithm.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiao Huang
AU  - Yuegang Tan
AU  - Li Cai
PY  - 2016/11
DA  - 2016/11
TI  - Application of Improved Empirical Mode Decomposition in Defect Detection Using Vibro-Ultrasonic Modulation Excitation-Fiber Bragg Grating Sensing
BT  - Proceedings of the 2016 5th International Conference on Measurement, Instrumentation and Automation (ICMIA 2016)
PB  - Atlantis Press
SN  - 1951-6851
UR  - https://doi.org/10.2991/icmia-16.2016.124
DO  - 10.2991/icmia-16.2016.124
ID  - Huang2016/11
ER  -