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Feasibility of a magnetic suspension for second generation Gravitational Wave interferometers

Monica Varvella·Enrico Calloni·Luciano Di Fiore·Leopoldo Milano·Nicolas Arnaud
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Abstract

This paper deals with the use of a magnetic levitation system as a part of a multi-stage seismic attenuator for gravitational wave interferometric antennas. The proposed configuration uses permanent magnets in attraction to balance the suspended weight, plus a closed loop position control to obtain a stable levitation. The system is analyzed using a MATLAB simulation code to compute the forces exerted by extended magnets. The validity of this model has been tested by a comparison with the experimental data from a levitated suspension prototype.

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Monica Varvella, Enrico Calloni, Luciano Di Fiore, Leopoldo Milano, Nicolas Arnaud. 2004-01-29. Feasibility of a magnetic suspension for second generation Gravitational Wave interferometers. https://doi.org/10.1016/j.astropartphys.2004.01.002

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