Title :
Strapping techniques for permanent magnets
Author :
Abele, M.G. ; Jensen, J.H. ; Rusinek, H.
Author_Institution :
Dept. of Radiol., New York Univ., NY, USA
fDate :
9/1/1996 12:00:00 AM
Abstract :
The magnetic field distortion due to magnetization tolerances, fabrication imperfections, and design alterations can be reduced by inserting into a permanent magnet structure thin straps of high permeability ferromagnetic material that lie along equipotential surfaces of the ideal field of a theoretical design. Numerical results are given for a simple model showing quantitatively the beneficial effect of strapping in improving the quality of the field
Keywords :
boundary integral equations; ferromagnetic materials; magnetic fields; magnetic permeability; permanent magnets; boundary integral method; design alterations; equipotential surfaces; fabrication imperfections; field quality improvement; high permeability ferromagnetic material; hybrid magnetic structure; magnetic field distortion; magnetic field uniformity; magnetization tolerances; model; numerical results; permanent magnets; strapping techniques; Fabrication; Magnetic fields; Magnetic materials; Magnetic separation; Magnetostatics; Manufacturing; Permanent magnets; Permeability; Radiology; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
