09 Dec, 2019

Passive limitations for a magnetic gravity compensator

Research Area: TU/e Year: 2009
Type of Publication: Article
Authors: Janssen, JLG; Paulides, JJH; Lomonova, EA
Journal: Journal of System Design and Dynamics Volume: 3
Number: 4 Pages: 671-680
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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