Operation of the central portion of Virgo as a simple 6 in Michelson interferometer has given the first demonstration of the possibility to control an interferometer suspended from Virgo full scale multistage seismic attenuators using information derived from the interferometer locking signal. A special role in the control is played by the first stage of these suspensions, an inverted pendulum: besides its seismic preisolation action, this stage has positioning dynamics of several mm, and it allows to exert a very low frequency control at the tipper level of the suspension using the interferometer fringe signal. The application of this feedback to the top-stage of the suspension allows corrections of drifts, such as tidal ones, at a stage of the suspension where a large dynamic range in displacements is available, without introducing noise at the level of the mirror, resulting in a significant reduction of the lock keeping force applied directly on the mirror at the lowest stage of the attenuator. (C) 2003 Elsevier B.V. All rights reserved.
Autori interni: | |
Autori: | Acernese F; Amico P; Arnaud N; Babusci D; Barille R; Barone F; Barsotti L; Barsuglia M; Beauville F; Bizouard MA; Boccara C; Bondu F; Bosi L; Bradaschia C; Bracci L; Braccini S; Brillet A; Brisson V; Brocco L; Buskulic D; Calamai G; Calloni E; Campagna E; Cavalier F; Cella G; Chassande-Mottin E; Cleva F; Cokelaer T; Confort G; Corda C; Coulon JP; Cuoco E; Dattilo V; Davier M; De Rosa R; Di Fiore L; Di Virgilio A; Dujardin B; Eleuteri A; Enard D; Ferrante I; Fidecaro F; Fiori I; Flamino R; Fournier JD; Frasca S; Frasconi F; Gammaitoni L; Gennai A; Giazotto A; Giordano G; Guidi G; Heitmann H; Hello P; Heusse P; Holloway L; Kreckelberg S; La Penna P; Loriette V; Loupias M; Losurdo G; Mackowski JM; Majorana E; Man CN; Marion F; Martelli F; Masserot A; Massonnet L; Mazzoni M; Milano L; Moreau J; Moreau F; Morgado N; Mornet F; Mours B; Pacheco J; Pai A; Palomba C; Paoletti F; Passaquieti R; Passuello D; Perniola B; Pinard L; Poggiani R; Punturo M; Puppo P; Qipiani K; Ramonet J; Rapagnani P; Reita V; Remillieux A; Ricci F; Ricciardi I; Russo G; Solimeno S; Stanga R; Toncelli A; Tonelli M; Tournefier E; Travasso F; Trinquet H; Varvella M; Verkindt D; Vetrano F; Veziant O; Vicere A; Vinet JY; Vocca H; Yvert M |
Titolo: | First locking of the Virgo central area interferometer with suspension hierarchical control |
Anno del prodotto: | 2004 |
Digital Object Identifier (DOI): | 10.1016/j.astropartphys.2003.10.003 |
Appare nelle tipologie: | 1.1 Articolo in rivista |