Three-dimensional magnetic field analysis of micromotor by Fast Fourier Transform

Authors
Zhang, MS Cai, BC Zhao, XL Wang, ZG
Citation
Ms. Zhang et al., Three-dimensional magnetic field analysis of micromotor by Fast Fourier Transform, IEEE MAGNET, 35(5), 1999, pp. 3685-3687
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
35
Issue
5
Year of publication
1999
Part
2
Pages
3685 - 3687
Database
ISI
SICI code
0018-9464(199909)35:5<3685:TMFAOM>2.0.ZU;2-J
Abstract
An analysis method bared on FFT(Fast Fourier Tranform) for three-dimensiona l magnetic field of micromotor is presented; the magnetic field and the sta tic magnetic force between slater and rotor of micromotor can be calculated by a pair of Fourier transform and some spatial filtering. Analysis result s show that the field and the static magnetic force drop off sharply with i ncreasing gap between rotor and stator, and the static magnetic force is mu ch larger than the weight of rotor.