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	Mechanism and experiment research on rotational magnetic field generated by circumferentially arrayed permanent magnets
	Zhang Wei ; Huang Ping ; Meng Yong-gang
	2010-10-12 ; 2010-10-12
关键词	Practical/ microrobots permanent magnets robot dynamics/ rotational magnetic field circumferentially arrayed permanent magnets inner microrobot complex problem assembled electromagnetic loops/ C3390 Robotics E2230 Robot and manipulator mechanics E2160 Micromechanics (mechanical engineering)
中文摘要	Actively driving an inner micro-robot by an outer magnetic field for diagnosis is a feasible and crucial driven method. However, How to generate suitable outer magnetic is a complex problem. Comparing with the common methods adopting assembled electromagnetic loops to generate a driving field, an innovative and simple method was presented, by which permanent magnets were assembled to generate a rotational magnetic field. The circumferentially arrayed permanent magnet was adjusted to the corresponding original azimuth, and then synchronization rotation generated rotating magnetic field in the center of the array to work as the driving field of micro-robot. Furthermore, theoretic analysis and numeric calculation of the magnetic induction intensity distribution of the array center was carried out and a test-bed was established. The experimental results indicate that when circumferentially array six cubic magnets with 50 mmX50 mmX18 mm at the diameter of 275 mm, an even magnetic field of 0.012T can be generated in the central space, +/-50 mmX +/-50 mmX +/-20 mm, of the array. This magnetic field rotates with the same velocity as the outer magnet does, but in the reverse direction. The method, with wide application foreground, can be applied to generate a magnetic field to drive a micro robot, for diagnosis and treatment.
语种	中文
出版者	Zhejiang University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80247]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang Wei,Huang Ping,Meng Yong-gang. Mechanism and experiment research on rotational magnetic field generated by circumferentially arrayed permanent magnets[J],2010, 2010.
APA	Zhang Wei,Huang Ping,&Meng Yong-gang.(2010).Mechanism and experiment research on rotational magnetic field generated by circumferentially arrayed permanent magnets..
MLA	Zhang Wei,et al."Mechanism and experiment research on rotational magnetic field generated by circumferentially arrayed permanent magnets".(2010).

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