The design of a new preisolator stage for the VIRGO superattenuator is presented. The device is essentially a 6 m high inverted pendulum with horizontal resonant frequency of 30 mHz. An isolation of 65 dB at 1 Hz has been achieved. Very low forces are needed to move the whole superattenuator acting on the inverted pendulum. For this reason, the system is a suitable platform for the active control of the mirror suspension. (C) 1999 American Institute of Physics. [S0034-6748(99)00805-9].

An inverted pendulum preisolator stage for the VIRGO suspension system

Passaquieti R;FIDECARO, FRANCESCO;POGGIANI, ROSA;
1999

Abstract

The design of a new preisolator stage for the VIRGO superattenuator is presented. The device is essentially a 6 m high inverted pendulum with horizontal resonant frequency of 30 mHz. An isolation of 65 dB at 1 Hz has been achieved. Very low forces are needed to move the whole superattenuator acting on the inverted pendulum. For this reason, the system is a suitable platform for the active control of the mirror suspension. (C) 1999 American Institute of Physics. [S0034-6748(99)00805-9].
Losurdo, G; Bernardini, M; Braccini, S; Bradaschia, C; Casciano, C; Dattilo, V; De Salvo, R; Di Virgilio, A; Frasconi, F; Gaddi, A; Gennai, A; Giazotto, A; Pan, Hb; Paoletti, F; Pasqualetti, A; Passaquieti, R; Passuello, D; Taddei, R; Zhang, Z; Cella, G; Cuoco, E; D'Ambrosio, E; Fidecaro, Francesco; Gaggero, S; La Penna, P; Mancini, S; Poggiani, Rosa; Vicere, A; Mazzoni, M; Stanga, R; Holloway, L; Winterflood, J.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/193152
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