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Development of a spherical motor driven by electro-magnets
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  • Development of a spherical motor driven by electro-magnets
  • Development of a spherical motor driven by electro-magnets
저자명
Ikeshita. Seiji,Gofuku. Akio,Kamegawa. Tetsushi,Nagai. Takakazu
간행물명
Journal of mechanical science and technology
권/호정보
2010년|24권 1호|pp.43-46 (4 pages)
발행정보
대한기계학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

This paper presents a spherical motor driven by electro-magnets that can rotate omnidirectionally with some degrees of rotation angle error independent of rotation direction. The spherical motor is composed of a spherical rotor, a semi-spherical stator, a control PC, a control circuit, and a DC power supply. The rotor has 92 neodymium magnets. On the other hand, 84 electro-magnets are arranged on the stator. Each electro-magnet can be excited to north or south magnetic pole. The control PC calculates the posture of the rotor after a small time interval and generates the pattern of excitation of electro-magnets in order to rotate the rotor to its calculated posture. The results of the performance of the developed spherical motor show that the maximum torque is 0.24 ($N{cdot}m$), the maximum rotation speed is 2.5 (rad/s), and the average error of rotation angle is several degrees.