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Design of a magnetic gravity compensation system

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Abstract

An extremely accurate positioning over relatively long ranges is accomplished by absorbing or suppressing vibrations. Highly accurate frames or stages should be supported against gravity. In addition, the external disturbance forces acting on these stages need to be cancelled in a feedback control loop. In this paper a new, low-cost, vacuum compatible gravity compensation system is presented, which eliminates vibrations and which is able to generate forces to counteract the disturbing ones as well.
Original languageEnglish
Pages (from-to)265-273
Number of pages9
JournalPrecision Engineering
Volume30
Issue number3
DOIs
Publication statusPublished - 2006

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