Torsion pendulum revisited

Year: 2013

Authors: Bassan M., De Marchi F., Marconi L., Pucacco G., Stanga R., Visco M.

Autors Affiliation: Dipartimento di Fisica, Università di Roma Tor Vergata, and INFN, Sezione di Roma Tor Vergata, I-00133 Rome, Italy; Dipartimento di Fisica Ed Astronomia, Università Degli Studi di Firenze, and INFN, Sezione di Firenze, Italy; IAPS-INAF, INFN, Sezione di Roma Tor Vergata, I-00133 Rome, Italy

Abstract: We present an analysis of the motion of a simple torsion pendulum and we describe how, with straightforward extensions to the usual basic dynamical model, we succeed in explaining some unexpected features we found in our data, like the modulation of the torsion mode at a higher frequency and the frequency splitting of the swinging motion. Comparison with observed values yields estimates for the misalignment angles and other parameters of the model.


Volume: 377 (25-27)      Pages from: 1555  to: 1562

More Information: We thank L. Di Fiore, R. De Rosa and F. Garufi for useful discussions. Continued advice and support from the Trento LISA-Pathfinder group, and in particular from W.J. Weber, is appreciated. Work supported by MIUR (grant PRIN 2008 ) and INFN .
KeyWords: LISA (observatory); Gravity waves; Wave detection
DOI: 10.1016/j.physleta.2013.04.017

Citations: 10
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