Magnetic field measurement using chip-scale magnetometers in eLISA

10th International LISA Symposium

Mateos, I.^1 ; Diaz-Aguiló, M.^1 ; Gesa, L.^1 ; Gibert, F.^1 ; Karnesis, N.^1 ; Lloro, I.^1 ; Lobo, A.^1 ; Martín, V.^1 ; Nofrarias, M.^1 ; Ramos-Castro, J.^1 ; Sopuerta, C.F.^1

Institut de Ciències de l'Espai (CSIC-IEEC), Barcelona

08034, Spain^1

关键词: Accuracy Improvement;    LISA Pathfinder;    Magnetic diagnostic;    Magnetic effects;    Magnetic sensing;    Magnetic subsystems;    Map interpolation;    Map reconstruction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/610/1/012028/pdf
DOI  :  10.1088/1742-6596/610/1/012028

来源: IOP

【 摘 要 】

Magnetic sensors are necessary devices to map the magnetic field and gradient at eLISA test masses location. Their primary goal is assessing the contribution of the magnetic effects to the acceleration noise budget. Our experience, accumulated during the magnetic diagnostics system design for LISA Pathfinder, indicates that the accuracy of the magnetic field map interpolation at the test mass is critical issue. Therefore, taking into consideration eLISA increased performance demands, an enhancement of the LISA Pathfinder magnetic subsystem is deemed necessary. A goal pursued by using alternative magnetic sensing techniques. In this study, the accuracy improvements in the magnetic field map reconstruction obtained with the currently conceived instrumental layout are demonstrated.