The radial magnetic coupling studies of perpendicular magnetic gears

Author

Yao, Y.D. ; Huang, D.R. ; Hsieh, C.C. ; Chiang, D.Y. ; Wang, S.J. ; Ying, T.F.

Author_Institution

Inst. of Phys., Acad. Sinica, Taipei, Taiwan

Volume

32

Issue

5

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

5061

Lastpage

5063

Abstract

The torque of the radial magnetic coupling between perpendicular magnetic gears with different magnetic poles has been investigated experimentally. The torque of magnetic coupling decreases with increasing the distance between the magnetic gears. For different multipole magnetic couplings with the same magnetic field strength, the torque of magnetic coupling increases as the number of magnetic poles increases for distances smaller than a critical separation distance d _c, but it is reversed as the separation distance becomes larger. This critical separation distance for our sintered NdFeB magnet system with an iron yoke of 2 mm thickness is roughly between 9 and 11 mm. This phenomenon is explained by analyzing the magnetic coupling strength of different poles of magnets on the perpendicular magnetic gears

Keywords

magnetic devices; torque; Fe; NdFeB; critical separation distance; iron yoke; magnetic field strength; magnetic poles; multipole magnetic coupling; perpendicular magnetic gear; radial magnetic coupling; sintered NdFeB magnet; torque; Couplings; Gears; Iron; Laboratories; Magnetic field measurement; Magnetic fields; Magnetic separation; Physics; Rotation measurement; Torque measurement;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.539490

Filename

539490