New sensors for measuring M and H in high magnetic fields

Two different small flat pick-up coil (FPC) devices, a flat pick-up coil developed at the TU-Vienna using a thin film technique, and a wire-wound flat pick-up coil commercially available, are compared for the characterization of magnetic materials in high pulsed magnetic fields. The FPC devices allow measuring the local surface magnetization. A small Hall probe to perform local magnetization measurements at high pulse field was also tested. The non-linear dependence of such probe was corrected mathematically and the results were compared with pick-up coils measurements. Magnetic viscosity measurement using the Hall probe is presented. (C) 2004 Elsevier B.V. All rights reserved.