Quasi-Static Electric Field in a Cylindrical Volume Conductor Induced by External Coils

Karu P. Esselle, Maria A. Stuchly

    Research output: Contribution to journalArticlepeer-review

    31 Citations (Scopus)

    Abstract

    An expansion technique based on modified Bessel functions is used to obtain an analytical solution for the electric field induced in a homogeneous cylindrical volume conductor by an external coil. The current in the coil is assumed to be changing slowly so that quasi-static conditions can be justified. Valid for any coil type, this solution is ideal for fast computation of the induced electric field at a large number of points. Efficient implementation of this method in a computer code is described and numerical results are presented for a perpendicular circular coil and a tangential double-square coil.

    Original languageEnglish
    Pages (from-to)151-158
    Number of pages8
    JournalIEEE Transactions on Biomedical Engineering
    Volume41
    Issue number2
    DOIs
    Publication statusPublished - 1994

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