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A novel electromagnetic method for local defects inspection of wire rope

  • Harbin Institute of Technology Shenzhen
  • School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

Electromagnetic (EM) testing of wire rope is the only effective technology and yields extensive use in the application and manufacturing industry of wire rope. Most EM testing instruments give one-dimensional axial magnetic flux leakage signal, losing the circumferential distribution of defects. Then the identification and classification of the defects largely depend on an operator's experience. Two-dimensional magnetic leakage signal of wire rope is acquired via an inspection prototype with Hall sensor array in this paper, and an adaptive spatial notch filter is designed to eliminate the inherent strand-waveform noise of the wire rope signal. Then a two-dimensional image recognition algorithm is introduced to identify and classify local defects, which includes feature extraction with Karhunen-Loève (K-L) transformation and defects classification with neural networks. The experimental results show back propagation (BP) network is effective and has a discrimination of 90% for several typical local defects.

Original languageEnglish
Title of host publication2006 IEEE Region 10 Conference, TENCON 2006
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)1424405491, 9781424405497
DOIs
StatePublished - 2006
Externally publishedYes
Event2006 IEEE Region 10 Conference, TENCON 2006 - Hong Kong, China
Duration: 14 Nov 200617 Nov 2006

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN (Print)2159-3442
ISSN (Electronic)2159-3450

Conference

Conference2006 IEEE Region 10 Conference, TENCON 2006
Country/TerritoryChina
CityHong Kong
Period14/11/0617/11/06

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