LISA pathfinder performance confirmed in an open-loop configuration: Results from the free-fall actuation mode
Creators: name: Armano, M.
name: Audley, H.
name: Baird, J.
name: Binetruy, P.
name: Born, M.
name: Bortoluzzi, D.
name: Castelli, E.
name: Cavalleri, A.
name: Cesarini, A.
name: Cruise, A.M.
name: Danzmann, K.
name: De Deus Silva, M.
name: Diepholz, I.
name: Dixon, G.
name: Dolesi, R.
name: Ferraioli, L.
name: Ferroni, V.
name: Fitzsimons, E.D.
name: Freschi, M.
name: Gesa, L.
name: Gibert, F.
name: Giardini, D.
name: Giusteri, R.
name: Grimani, C.
name: Grzymisch, J.
name: Harrison, I.
name: Hartig, M.-S.
name: Heinzel, G.
name: Hewitson, M.
name: Hollington, D.
name: Hoyland, D.
name: Hueller, M.
name: Inchauspé, H.
name: Jennrich, O.
name: Jetzer, P.
name: Karnesis, N.
name: Kaune, B.
name: Korsakova, N.
name: Killow, C.J.
name: Lobo, J.A.
name: Liu, L.
name: López-Zaragoza, J.P.
name: Maarschalkerweerd, R.
name: Mance, D.
name: Meshksar, N.
name: Martín, V.
name: Martin-Polo, L.
name: Martino, J.
name: Martin-Porqueras, F.
name: Mateos, I.
name: McNamara, P.W.
name: Mendes, J.
name: Mendes, L.
name: Nofrarias, M.
name: Paczkowski, S.
name: Perreur-Lloyd, M.
name: Petiteau, A.
name: Pivato, P.
name: Plagnol, E.
name: Ramos-Castro, J.
name: Reiche, J.
name: Robertson, D.I.
name: Rivas, F.
name: Russano, G.
name: Slutsky, J.
name: Sopuerta, C.F.
name: Sumner, T.
name: Texier, D.
name: Thorpe, J.I.
name: Vetrugno, D.
name: Vitale, S.
name: Wanner, G.
name: Ward, H.
name: Wass, P.J.
name: Weber, W.J.
name: Wissel, L.
name: Wittchen, A.
name: Zweifel, P.
Publisher: name: College Park, MD : American Physical Society
Year: 2019
Subjects: subject: Atomic physics
subject: Physics
subject: Actuation noise
subject: Differential accelerations
subject: Dominant factor
subject: Force calibration
subject: LISA Pathfinder
subject: Mode of operations
subject: Noise measurements
subject: Open-loop configuration
subject: Space probes
subject: acceleration
subject: article
subject: calibration
subject: noise measurement
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We report on the results of the LISA Pathfinder (LPF) free-fall mode experiment, in which the control force needed to compensate the quasistatic differential force acting on two test masses is applied intermittently as a series of "impulse" forces lasting a few seconds and separated by roughly 350 s periods of true free fall. This represents an alternative to the normal LPF mode of operation in which this balancing force is applied continuously, with the advantage that the acceleration noise during free fall is measured in the absence of the actuation force, thus eliminating associated noise and force calibration errors. The differential acceleration noise measurement presented here with the free-fall mode agrees with noise measured with the continuous actuation scheme, representing an important and independent confirmation of the LPF result. An additional measurement with larger actuation forces also shows that the technique can be used to eliminate actuation noise when this is a dominant factor. © 2019 authors. Published by the American Physical Society.