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Analysis of electromagnetically induced acoustic emission under different magnetic field conditions

  • Hebei University of Technology
  • Tiangong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The ability of acoustic emission detection is enhanced by electromagnetic stimulation with external magnetic field. Different magnetic field directions, which are generated by permanent magnet, produce various vibrations of defect itself. In this paper, the deformation characteristics of electromagnetically induced acoustic emission (EMAE) are studied by the finite element method (FEM). The experimental data are compared by the signal reprocessing of sample entropy (SampEn), which under the condition of parallel and vertical magnetic field. The main conclusion is that characteristics of AE varied significantly under different magnetic field conditions, which provides crucial references for EMAE source. Meanwhile, this study leads to ratiocination that the application of parallel magnetic field reduces the demands of the power supply and improves the detection efficiency.

Original languageEnglish
Title of host publicationFENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing
Subtitle of host publicationNew Technology and Application, Increasingly Perfect NDT/E
EditorsQinxue Pan, Chunguang Xu, Liu Yang
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages294-297
Number of pages4
ISBN (Electronic)9781479947317
DOIs
StatePublished - 16 Oct 2014
Externally publishedYes
Event2014 IEEE 11th Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2014 - Chengdu, China
Duration: 20 Jun 201423 Jun 2014

Publication series

NameFENDT 2014 - Proceedings, 2014 IEEE Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, Increasingly Perfect NDT/E

Conference

Conference2014 IEEE 11th Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2014
Country/TerritoryChina
CityChengdu
Period20/06/1423/06/14

Keywords

  • deformation
  • EMAE
  • parallel magnetic field
  • vertical magnetic field

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