Magnetic forces between arrays of cylindrical permanent magnets

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:323

Article

Vokoun, D.¹  Tomassetti, G.²  Beleggia, M.³  Stachiv, I.¹ 

[1] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

[2] Univ Roma Tor Vergata, Dipartimento Ingn Civile, Tomelloso, Spain

[3] Tech Univ Denmark, Ctr Electron Nanoscopy, DK-2800 Lyngby, Denmark

关键词: Permanent magnet;    Cylindrical magnet;    Attraction force;    Magnetostatic interaction;   

DOI  :  10.1016/j.jmmm.2010.08.029

来源: Elsevier

【 摘 要 】

Permanent magnet arrays are often employed in a broad range of applications: actuators, sensors, drug targeting and delivery systems, fabrication of self-assembled particles, just to name a few. An estimate of the magnetic forces in play between arrays is required to control devices and fabrication procedures. Here, we introduce analytical expressions for calculating the attraction force between two arrays of cylindrical permanent magnets and compare the predictions with experimental data obtained from force measurements with NdFeB magnets. We show that the difference between predicted and measured force values is less than 10%. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

Free