Permanent magnet micromotors on silicon substrates

被引:47
作者
Wagner, B. [1 ]
Kruetzer, M. [1 ]
Beneceke, W. [1 ]
机构
[1] Fraunhofer Inst for Silicon, Technology, Berlin, Germany
关键词
Magnets - Rare earth elements;
D O I
10.1109/84.232591
中图分类号
学科分类号
摘要
Different types of sliding, rolling, or rotating micromotors with rare-earth-based permanent magnet rotors are presented. The magnets move synchronously with rotating or traveling magnetic fields generated by 25-micrometer thick gold curent lines on silicon substrates. The magnets are guided in channels or openings in the silicon itself or in additional glass layers. For magnets with a typical dimension of 1 mm, forces and torques of 150 μN and 100 nNm could be achieved. Maximum velocities of 24 cm//s and a rotation frequency of 2000 rpm have been measured.
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页码:23 / 29
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