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http://dx.doi.org/10.5370/KIEE.2012.61.12.1828

Novel Cylindrical Magnetic Levitation Stage for Rotation as well as Translation along Axles with High Precisions  

Jeon, Jeong-Woo (Korea Electrotechnology Research Institute(Busan National University))
Caraiani, Mitica (Korea Electrotechnology Research Institute)
Lee, Chang-Lin (Korea Electrotechnology Research Institute)
Jeong, Yeon-Ho (Korea Electrotechnology Research Institute)
Kim, Jong-Moon (Korea Electrotechnology Research Institute)
Oh, Hyeon-Seok (Korea Electrotechnology Research Institute)
Kim, Sungshin (Pusan National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.12, 2012 , pp. 1828-1835 More about this Journal
Abstract
In this paper, a conceptual design and a detailed design of novel cylindrical magnetic levitation stage is introduced. This is came from planar-typed magnetic levitation stage. The proposed stage is composed of cylinder-typed permanent magnet array and semi-cylinder-typed 3 phase winding module. When a proper current is induced at winding module, a magnetic levitation force between the permanent magnet array and winding module is generated. The proposed stage can precisely move the cylinder to rotations and translations as well as levitations with the magnetic levitation force. This advantage is useful to make a nano patterning on the surface of cylindrical specimen by using electron beam lithography under vacuum. Two methods are used to calculate required magnetic levitation forces. The one is 2D FEM analysis, the other is mathematical modeling. This paper shown that results of two methods are similar. An assistant plate is introduced to reduce required currents of winding module for levitations in vacuum. The mathematical model of cylindrical magnetic levitation stage is used for dynamic simulation of magnetic levitations. A lead-lag compensator is used for control of the model. Simulation results shown that the detail designed model of the cylindrical magnetic levitation stage with the assistant plate can be controlled very well.
Keywords
Cylindrical magLev stage; Magnetic levitations; Roller-typed micro/nano lithography; Printed electronics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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