Mutual inductance of noncoaxial circular coils with constant current density

Ki Bong Kim, Enrico Levi, Zivan Zabar, Leo Birenbaum

Research output: Contribution to journalArticlepeer-review


The purpose of this paper is to determine the mutual inductance between two noncoaxial circular coils. In many cases, such as coil guns or tubular linear motors, one of them is fixed while the other one is moving, and if not supported, its axis May not coincide with that of the fixed coil. This paper presents a method for the calculation of the mutual inductance in the case of noncoaxial coupled coils, the characteristics of this inductance, and experimental results. The computation is based on complete elliptic integrals and on mesh-matrix technique. The method enables one to obtain accurate results from a relatively simple procedure and calculation program.

Original languageEnglish (US)
Pages (from-to)4303-4309
Number of pages7
JournalIEEE Transactions on Magnetics
Issue number5 PART 3
StatePublished - 1997


  • Mutual inductance
  • Noncoaxial coils

ASJC Scopus subject areas

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


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