Speaker
Luciano Di Fiore
(INFN Napoli)
Description
A torsion pendulum with 2 soft degrees of freedom (DOF), realized by off-axis cascading two torsion fibers, has been built and operated. This instrument allows simultaneous measurement, of force and torque acting on the suspended test mass, approaching free-fall condition down to a few mHz. It was developed for ground testing on two DOFs, before the launch, of the Gravitational Reference Sensor of the LISA-Pathfinder mission. We will report on the results of some measurement campaigns devoted in particular to the characterization of force to torque and torque to force actuation cross-talks. We will also discuss further possible upgrades of the facility for application for ground testing of future space gravitational wave antennas or other space experiments requiring drag-free control.
Primary author
Massimo BASSAN
(ROMA2)
Co-authors
Aniello Grado
(INAF-OAC e INFN NA)
Antonella Cavalleri
(3CNR– Fondazione Bruno Kessler e INFN-TIFPA)
Daniele Vetrugno
(TIFP)
Fabio Garufi
(NA)
Fabrizio De Marchi
Giuseppe Pucacco
(ROMA2)
Leopoldo Milano
Luciano Di Fiore
(NA)
Martina De Laurentis
(NA)
Massimo Visco
(ROMA2)
Mauro Hueller
(TIFP)
Noemi Finetti
(FI)
Rita Dolesi
(TIFP)
Rosario De Rosa
(NA)
Ruggero Stanga
(FI)
Stefano Vitale
(TN)
William Weber
(TIFP)
