Magnetic nondestructive detection of cracks in a distribution line

Takashi Nonaka, Fumihiro Sato, Hidetoshi Matsuki, Tadakuni Sato

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)


An important problem in the electric power industry is the degradation of distribution lines. We propose a nondestructive detection system for cracks in a distribution line by measuring the magnetic field around the distribution line when it is energized. In this paper, we examine the distribution of the magnetic field around a 50 Hz distribution line in a laboratory experiment. From our observations, we develop and refine an algorithm for detecting cracks by using the magnetic field direction.

Original languageEnglish
Pages (from-to)2746-2748
Number of pages3
JournalIEEE Transactions on Magnetics
Issue number4 I
Publication statusPublished - 2001 Jul
Event8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States
Duration: 2001 Jan 72001 Jan 11


  • Algorithm
  • Distribution line
  • Nondestructive crack detection


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