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Published September 2014 | Published
Book Section - Chapter Open

Vibration control of flexible structures using fusion of inertial sensors and hyper-stable actuator-sensor pairs

Abstract

This paper discusses sensor fusion techniques that can be used to increase the control bandwidth and stability of active vibration isolation systems. For this, a low noise inertial instrument dominates the fusion at low frequency to provide vibration isolation. Other types of sensors (relative motion, smaller but noisier inertial, or force sensors) are used at higher frequencies to increase stability. Several sensor fusion configurations are studied. The paper shows the improvement that can be expected for several case studies.

Additional Information

© 2014 KU Leuven. The authors gratefully acknowledge the LIGO visitors Program for making possible this collaborative work between the Université Libre de Bruxelles and the LIGO laboratory. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under cooperative agreement PHY-0107417. The authors also gratefully acknowledge the members of the LIGO Seismic Working Group for their comments and inspiring discussions, and particularly Jeff Kissel for carefully proof-reading the manuscript and making valuable comments. This document was assigned LIGO Document number LIGO-P1400099.

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August 20, 2023
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