Revista Mexicana de Física ISSN: 0035-001X
[email protected] Sociedad Mexicana de Física A.C. México Camacho, J. M.; Sosa, V. Alternative method to calculate the magnetic field of permanent magnets with azimuthal symmetry Revista Mexicana de Física, vol. 59, núm. 1, enero-junio, 2013, pp. 8-17 Sociedad Mexicana de Física A.C. Distrito Federal, México Available in: http://www.redalyc.org/articulo.oa?id=57048158002 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative EDUCATION Revista Mexicana de F´ısica E 59 (2013) 8–17 JANUARY–JUNE 2013 Alternative method to calculate the magnetic field of permanent magnets with azimuthal symmetry J. M. Camacho and V. Sosaa Facultad de Ingenier´ıa, Universidad Autonoma´ de Yucatan,´ Av. Industrias no contaminantes por Periferico´ Norte, A.P. 150 Cordemex, Merida,´ Yuc., Mexico.´ aPermanent address: Departamento de F´ısica Aplicada, CINVESTAV-IPN, Unidad Merida,´ A.P. 73 Cordemex, Merida,´ Yuc., C.P. 97310, Mexico.´ Phone: (+52-999) 9429445; Fax: (+52-999) 9812917. e-mail:
[email protected]. Received 6 September 2012; accepted 8 January 2013 The magnetic field of a permanent magnet is calculated analytically for different geometries. The cases of a sphere, cone, cylinder, ring and rectangular prism are studied. The calculation on the axis of symmetry is presented in every case. For magnets with cylindrical symmetry, we propose an approach based on an expansion in Legendre polynomials to obtain the field at points off the axis.