Last stage control and mechanical transfer function measurement of the VIRGO suspensions
- Bozzi A
- Bourgoin C
- Cortese S
- Errico A
- Enard D
- Mataguez S
- Paoli A
- Pasqualetti A
- Popolizio P
- Richard F
- Teuler JM
- Zhang Z
- Boccara C
- Leliboux M
- Loriette V
- Reita V
- Roger JP
- Ganau P
- Lagrange B
- Mackowski JM
- Michel C
- Montorio JL
- Morgado N
- Pinard L
- Remillieux A
- Bracci L
- Calamai G
- Cuoco E
- Dominici P
- Fabbroni L
- Guidi G
- Losurdo G
- Martelli F
- Mazzoni M
- Ripepe M
- Stanga R
- Vetrano F
- Acernese F
- Barone F
- Calloni E
- Cavaliere S
- De Rosa M
- De Rosa R
- Di Fiore L
- Eleuteri A
- Evangelista G
- Garufi F
- Maiorino M
- Milano L
- Qipiani K
- Solimeno S
- Varella M
- Amico P
- Cattuto C
- Gammaitoni L
- Marchesoni F
- Punturo M
- Vocca H
- Ballardin G
- Braccini S
- Bradaschia C
- Casciano C
- Cavalieri R
- Cecchi R
- Cella G
- Dattilo V
- Di Virgilio A
- Frasconi F
- Gennaro G
- Giazotto A
- Holloway L
- La Penna P
- Lomtadze T
- Nicolosi L
- Paoletti F
- Passaquieti R
- Passuello D
- Taddei R
- Vicere A
- Frasca S
- Majorana E
- Palomba C
- Perciballi M
- Puppo P
- Rapagnani P
- Ricci F
- Arnaud N
- Arnault C
- Barsuglia M
- Beney JL
- Bilhaut R
- Bizouard MA
- Brisson V
- Canitrot P
- Cavalier F
- Chiche R
- Cuzon S
- Davier M
- Dehamme M
- Eder C
- Gaspard M
- Hello P
- Heusse P
- Jules E
- Lodygenski O
- Mansoux B
- Marrucho JC
- Mencik M
- Marin P
- Pradier T
- Reboux A
- Rivoirard P
- Taurigna M
- Bellachia F
- Boget D
- Buskulic D
- Caron B
- Chollet F
- David PY
- Dufournaud D
- Flaminio R
- Fournier L
- Giacobone L
- Girard C
- Hermel R
- Lacotte JC
- Lieunard B
- Marion F
- Masserot A
- Massonnet L
- Mours B
- Mugnier P
- Ramonet J
- Sottile R
- Verkindt D
- Veziant O
- Yvert M
- Babusci D
- Fang H
- Giordano G
- Iannarelli M
- Turri E
- Bondu F
- Brillet A
- Cachenaut J
- Cleva F
- Cokelaer T
- Coulon JP
- Fournier JD
- Heitmann H
- Innocent JM
- Loupias M
- Man CN
- Pacheco J
- Regimbau T
- Scheidecker JP
- Trinquet H
- Tourrenc P
- Vinet JY
- FERRANTE, ISIDORO
- FIDECARO, FRANCESCO
- POGGIANI, ROSA
DOIAbstract
The automatic control of the suspended mirrors is a major task in operating an interferometric gravitational wave antenna. To reach the extreme sensitivity required for this kind of detector, an accurate alignment and a stable locking of the interferometer on its working point are crucial. The solution of this problem is particularly complex in the case of a multistage pendulum, such as the suspension system for seismic isolation adopted in VIRGO. A precise knowledge of the suspension mechanical transfer functions (TFs) for different forces applied in the control servo-loops represents essential information to reach the goal. In this article, we describe the apparatus we developed to measure the VIRGO suspension TF and we report the results...
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