Low frequency eddy current inspection of wall-thinning of large pipes by bobbin coils

Jing Wang, Noritaka Yusa, Hiroyuki Fukutomi, Hidetoshi Hashizume

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This study firstly discussed effect of three coil's orientations on sensitivity of low frequency eddy current testing for inspecting wall-thinning of large pipes through experimental signals. One specimen made of carbon steel was prepared. Hollows with different depth were introduced on the bottom of the specimen. Results of experiments showed that sensitivity of low frequency eddy current testing would be best if axes of bobbin coils are both parallel to surface of a pipe. Further experimental data showed that usage of coils' shield could not improve the sensitivity of inspection. Subsequent simulations were performed to reveal the mechanism.

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.
Pages172-175
Number of pages4
ISBN (Electronic)9781479947317
DOIs
Publication statusPublished - 2014 Oct 16
Event2014 IEEE 11th Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2014 - Chengdu, China
Duration: 2014 Jun 202014 Jun 23

Publication series

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

Other

Other2014 IEEE 11th Far East Forum on Nondestructive Evaluation/Testing: New Technology and Application, FENDT 2014
CountryChina
CityChengdu
Period14/6/2014/6/23

Keywords

  • carbon steel pipe
  • low frequency eddy current testing
  • orientation of coils
  • wall-thinning

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality

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