Inverse analyses for natural and multicracks using signals from a differential transmit-receive ECT probe

Haoyu Huang, Toshiyuki Takagi

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

This paper describes the inverse analysis in the frame works of a round-robin test for the testing of steam generator tubes by eddy-current testing (ECT). An ECT probe with high space resolution was newly proposed, for the purpose of better and easier crack shape evaluations. This new probe is applied to the round-robin testpieces including natural crack samples and a multicrack sample. Inverse problems of the crack shape reconstructions are solved by a fast forward simulator and the conjugated gradient method. Experimental ECT signals as well as results of reconstructions are shown. Treatments of a natural crack and multicracks are discussed.

Original languageEnglish
Pages (from-to)1009-1012
Number of pages4
JournalIEEE Transactions on Magnetics
Volume38
Issue number2 I
DOIs
Publication statusPublished - 2002 Mar

Keywords

  • Eddy-current testing
  • Inverse problems
  • Multicracks
  • Natural cracks

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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