09 Dec, 2019

Passive Magnetic Suspension Limitations for Gravity Compensation

Research Area: TU/e Year: 2008
Type of Publication: In Proceedings
Authors: Janssen, JLG; Paulides, JJH; Lomonova, EA
Book title: Proceedings of the 11th international Symposium on Magnetic Bearings, ISMB 11
Pages: 83-90
Address: Nara, Japan
Month: August 26-29, 2008
BibTex:
Abstract:
The development of sophisticated advanced vibration isolation is important, since even the minutest vibrations have disastrous effects on the performance of static and moving parts in high-precision machines. This paper concerns with the isolation of these vibrations for a large static body in an advanced micro-lithographic system, where a passive/active electromagnetic solution is presented. In these configurations passive permanent magnets (PM) provide the gravity compensation and active electromagnets the accurate positioning. However, this paper only considers the applicability of a passive magnetic solution for this high force gravity compensation application, or, more specifically, the influence of various PM array topologies on the force density. Further, fast-solving analytical models will be presented and will consequently be used to illustrate the feasibility of using passive permanent magnets for gravity compensation in this demanding high precision industrial application.

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Dr. J.L.G. (Jeroen) Janssen MSc

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