Effective shielding of unidirectional current generated magnetic fields

L. Xu, Z.C. Fu, Ya Ping Du

Research output: Journal article publicationJournal articleAcademic researchpeer-review


This paper presented an effective shielding design of magnetic fields generated by unidirectional current. Theoretical formulas and numerical computation software based on boundary element method (BEM) are employed to evaluate the shielding effectiveness (SE) of cylindrical shell. It is shown that ungrounded or one-end-grounded metal shell is ineffective for such magnetic fields. SE can be obtained by connecting the two ends of the conducting shell with low impedance connector, or alternatively, grounding the two ends. The experimental results also support these conclusions.
Original languageEnglish
Pages (from-to)171-174
Number of pages4
JournalJournal of Shanghai Jiaotong University
Issue number2
Publication statusPublished - 2002


  • Magnetic shielding
  • Cylindrical shell
  • Boundary element method
  • Eddy current

ASJC Scopus subject areas

  • General


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