An inverted pendulum preisolator stage for the VIRGO suspension system

Citation
G. Losurdo et al., An inverted pendulum preisolator stage for the VIRGO suspension system, REV SCI INS, 70(5), 1999, pp. 2507-2515
Citations number
18
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
REVIEW OF SCIENTIFIC INSTRUMENTS
ISSN journal
00346748 → ACNP
Volume
70
Issue
5
Year of publication
1999
Pages
2507 - 2515
Database
ISI
SICI code
0034-6748(199905)70:5<2507:AIPPSF>2.0.ZU;2-Z
Abstract
The design of a new preisolator stage for the VIRGO superattenuator is pres ented. The device is essentially a 6 m high inverted pendulum with horizont al resonant frequency of 30 mHz. An isolation of 65 dB at 1 Hz has been ach ieved. Very low forces are needed to move the whole superattenuator acting on the inverted pendulum. For this reason, the system is a suitable platfor m for the active control of the mirror suspension. (C) 1999 American Instit ute of Physics. [S0034-6748(99)00805-9].