The measurement error due to both the probe size averaging effect and the coil arrangement is investigated when magnetic field measurements are performed in close proximity to different planar shields. The analysis is carried on through a hybrid FEM/BEM model which employs the ‘‘thin shield’’ technique. Ferromagnetic, pure conductive and multilayer screens are taken into consideration and an estimation of the errors for concentric and non-concentric coil probes is given. The numerical results are validated by experiments.
Measurement accuracy in shielded magnetic fields / Bottauscio, Oriano; Chiampi, M; Crotti, Gabriella; Zucca, Mauro. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 290-291 Part 2:(2005), pp. 1326-1329. [10.1016/j.jmmm.2004.11.429]
Measurement accuracy in shielded magnetic fields
BOTTAUSCIO, ORIANO;CROTTI, GABRIELLA;ZUCCA, MAURO
2005
Abstract
The measurement error due to both the probe size averaging effect and the coil arrangement is investigated when magnetic field measurements are performed in close proximity to different planar shields. The analysis is carried on through a hybrid FEM/BEM model which employs the ‘‘thin shield’’ technique. Ferromagnetic, pure conductive and multilayer screens are taken into consideration and an estimation of the errors for concentric and non-concentric coil probes is given. The numerical results are validated by experiments.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
