Inertial control of the mirror suspensions of the VIRGO interferometer for gravitational wave detection

被引:53
|
作者
Losurdo, G [1 ]
Calamai, G
Cuoco, E
Fabbroni, L
Guidi, G
Mazzoni, M
Stanga, R
Vetrano, F
Holloway, L
Passuello, D
Ballardin, G
Braccini, S
Bradaschia, C
Cavalieri, R
Cecchi, R
Cella, G
Dattilo, V
Di Virgilio, A
Fidecaro, F
Frasconi, F
Gennai, A
Giazotto, A
Ferrante, I
La Penna, P
Lelli, F
Lomtadze, T
Marin, A
Mancini, S
Paoletti, F
Pasqualetti, A
Passaquieti, R
Poggiani, R
Taddei, R
Vicerè, A
Zhang, Z
机构
[1] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy
[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[3] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy
[4] Osserv Astrofis Arcetri, I-50125 Florence, Italy
[5] Univ Urbino, Inst Fis, I-61029 Urbino, Italy
[6] Univ Florence, Dipartimento Astron, Florence, Italy
[7] Univ Pisa, Dipartimento Fis, Pisa, Italy
来源
REVIEW OF SCIENTIFIC INSTRUMENTS | 2001年 / 72卷 / 09期
关键词
D O I
10.1063/1.1394189
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
In order to achieve full detection sensitivity at low frequencies, the mirrors of interferometric gravitational wave detectors must be isolated from seismic noise. The VIRGO vibration isolator, called the superattenuator, is fully effective at frequencies above 4 Hz. But the residual motion of the mirror at the mechanical resonant frequencies of the system is too large for the interferometer locking system and must be damped. A multidimensional feedback system, using inertial sensors and digital processing, has been designed for this purpose. An experimental procedure for determining the feedback control of the system has been defined. In this article a full description of the system is given and experimental results are presented. (C) 2001 American Institute of Physics.
引用
收藏
页码:3653 / 3661
页数:9
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