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Active stabilization of a mechanical structure

Abstract : This article [1] refers to a particular stage of our attempt to reach the stabilization of the linear collider final focus quadrupole. All along this final focus, an absolute displacement has to be lower than the third of nanometre above a few hertz. The presented intermediary step consists in doing active vibrations control of an elemen-tary mechanical structure in cantilever mode which is similar to the final focus. We consider mainly the active compensation and the latest results on a large prototype. Other aspects are also treated such as modelling, active isolation and instrumentation dedicated to the ground motion.
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Contributor : Claudine Bombar <>
Submitted on : Tuesday, September 25, 2007 - 5:05:02 PM
Last modification on : Friday, November 6, 2020 - 3:30:36 AM
Long-term archiving on: : Friday, April 9, 2010 - 2:51:31 AM


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  • HAL Id : in2p3-00174925, version 1



L. Brunetti, N. Geffroy, B. Bolzon, A. Jérémie, J. Lottin, et al.. Active stabilization of a mechanical structure. 2007 International Linear Collider Workshop (LCWS/ILC 2007), May 2007, Hamburg, Germany. ⟨in2p3-00174925⟩



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