Reconstruction of multiple cracks in an ECT round-robin test

Mihai Rebican, Noritaka Yusa, Zhenmao Chen, Kenzo Miya, Tetsuya Uchimoto, Toshiyuki Takagi

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


This paper proposes an algorithm for multiple cracks reconstruction from ECT signals by means of a simulated annealing parallelized on a supercomputer. The algorithm takes not only the profiles of cracks but also the number of cracks as unknown, which is a very important feature from the practical point of view. A fast forward code using a database is upgraded for the rapid computation of the ECT signals of a differential mutual induction probe due to multiple cracks. The algorithm is applied to the reconstruction of the multiple cracks of a JSAEM round-robin test geometry. The reconstruction result using a simulated signal proves the validity of the proposed approach.

Original languageEnglish
Pages (from-to)399-404
Number of pages6
JournalInternational Journal of Applied Electromagnetics and Mechanics
Issue number1-4
Publication statusPublished - 2004


  • Eddy current testing
  • Multiple cracks
  • Parallel computing
  • Reconstruction
  • Simulated annealing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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