Since a few years, the LISA-PF group in Napoli has been working to the development of an optical read-out system, based on optical levers and position sensitive detectors, for the LISA Gravitational Reference Sensor (GRS). This is intended as a more sensitive extra sensing device, in addition to capacitive readout that is the reference solution already tested on flight by the LISA-Pathfinder mission. The reliability of the proposed ORO device and the fulfillment of the sensitivity goals have been already demonstrated in bench-top measurements and tested with torsion pendulum facilities. In this paper we report on the present status of this activity, presenting the results obtained so-far and the perspectives for the future LISA mission.
A two-stage torsion pendulum for ground testing free fall conditions on two degrees of freedom / Bassan, M; Cavalleri, A; DE LAURENTIS, Martina; De Marchi, F; DE ROSA, Rosario; Di Fiore, L; Dolesi, R; Finetti, N; Garufi, Fabio; Grado, A; Hueller, M; Milano, Leopoldo; Pucacco, G; Stanga, R; Vetrugno, D; Visco, M; Vitale, S; Weber, Jw. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 840:(2017), pp. 1-3. [10.1088/1742-6596/840/1/012035]
A two-stage torsion pendulum for ground testing free fall conditions on two degrees of freedom
DE LAURENTIS, MARTINA;DE ROSA, ROSARIO;GARUFI, FABIO;MILANO, LEOPOLDO;
2017
Abstract
Since a few years, the LISA-PF group in Napoli has been working to the development of an optical read-out system, based on optical levers and position sensitive detectors, for the LISA Gravitational Reference Sensor (GRS). This is intended as a more sensitive extra sensing device, in addition to capacitive readout that is the reference solution already tested on flight by the LISA-Pathfinder mission. The reliability of the proposed ORO device and the fulfillment of the sensitivity goals have been already demonstrated in bench-top measurements and tested with torsion pendulum facilities. In this paper we report on the present status of this activity, presenting the results obtained so-far and the perspectives for the future LISA mission.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
