DocumentCode
1059159
Title
Micromotor with electromagnetically levitated rotor using separated coils
Author
Wu, X.-S. ; Chen, W.-Y. ; Zhao, X.-L. ; Zhang, W.-P.
Author_Institution
Res. Inst. of Micro/Nano Sci. & Technol., Shanghai Jiaotong Univ., China
Volume
40
Issue
16
fYear
2004
Firstpage
996
Lastpage
997
Abstract
In a novel stator structure, the levitated, stability and rotating coils of a micromotor with an electromagnetically levitated rotor are separated and of multi-loop. This micromotor has improved stability, levitation and rotation performance. With current of appropriate value and frequency in the coils, the rotor of 2.2 mm diameter and 20 μm thick is levitated to a height of 300 μm, and its rotating speed can reach 1400 rpm.
Keywords
coils; electromagnets; magnetic levitation; micromotors; rotors; stators; 2.2 mm; 20 micron; 300 micron; electromagnetically levitated rotor; micromotor; motor rotating coils; motor separated coils; motor stability; stator structure;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20040601
Filename
1322803
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