RT conference output
T1 Towards an improved magnetic diagnostic system for LISA
A1 Mateos, I.
A1 Lobo, A.
A1 Ramos-Castro, J.
A1 Sanjuán, J.
A1 Nofrarias, M.
A2 Ingeniería en AutomáticaElectrónica, Arquitectura y Redes de Computadores
AB The current design, and material implementation of the magnetic field sensing in the LISA Technology Package (LTP) on board LISA Pathfinder (LPF), is based on a set of 4 high-precision 3-axis fluxgate magnetometers. In order to avoid magnetic disturbances on the LTP proof masses (TM 's), originated by the sensors themselves, these are placed somewhat far from the TM's, which results in partial field information losses. We are currently investigating alternative magnetic sensing techniques, based on AMR (Anisotropic Magnetoresistive) devices. These are much smaller in size than fluxgates, therefore a more numerous array can be thought of for flight. In addition, there is a chance that they may be attached closer to the TM's, thereby enhancing magnetic field sensing spacial resolution. Several issues need to be addressed, such as real sensitivity (including electronics noise) and set/reset trigger procedures. A brief overview about the stability of the magnetic fields and gradients generated in the LTP by means of the coil will also be given. This paper show the latest results of our research.
YR 2009
FD 2009
LK http://hdl.handle.net/10498/33417
UL http://hdl.handle.net/10498/33417
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026