The magnetic field due to a permanent magnet of a tube-side segment as shape and of radial-oriented magnetization is considered. Such a sheet modelling a single pole of the magnet is used to express the suitable contribution to magnetic quantities. A boundary-integral approach is applied that is based on a virtual scalar quantity attributed to the magnet pole. Such an approach leads to express analytically the scalar magnetic potential and the magnetic flux density by means of the elliptic integrals. Numerical examples of the computed fields are given. The general idea of the presented approach is mainly directed towards designing the magnetic field within the air gap of electric machines with permanent magnets as an excitation source. Other technical structures with permanent magnets may be a subject of this approach as well.

JO - Archives of Electrical Engineering L1 - http://sd.czasopisma.pan.pl/Content/84575/PDF/03_paper.pdf L2 - http://sd.czasopisma.pan.pl/Content/84575 IS - No 4 December EP - 432 KW - permanent magnets KW - boundary integral method KW - elliptic integrals ER - A1 - Pawluk, Krystyn A1 - Sulima, Renata PB - Polish Academy of Sciences VL - vol. 60 JF - Archives of Electrical Engineering SP - 413 T1 - Boundary-integral model of permanent magnet of a tube segment as shape UR - http://sd.czasopisma.pan.pl/dlibra/docmetadata?id=84575 DOI - 10.2478/v10171-011-0035-2