[Zurück]

J.H. Espina, R. Grössinger:
"A pulse field magnetometer for local magnetization measurements";
Journal of Alloys and Compounds, 369 (2004), S. 235 - 238.

A pulse field magnetometer for local magnetization measurements

J. H. Espina-Hernández Corresponding Author Contact Information, E-mail The Corresponding Author, a and R. Grössinger b

a Institute of Materials and Reagents (IMRE), University of Havana, CP 10400, San Lázaro y L, Cuba
b Institute of Solid State Physics, TU-Vienna, Wiedner Haupstrasse 8-10, A-1040, Vienna, Austria

Available online 27 November 2003.


Abstract

A pulse field magnetometer with a new flat pick-up coil device is presented for the characterization of magnetic materials in high magnetic fields. The dimensions of this pick-up coil allow the registration of local hysteresis loops. Magnetization measurements and anisotropy field measurements were performed locally on Nd-Fe-B and M-type ferrite permanent magnets at room temperature. Estimation of the local demagnetizing factor by the measurement of HA using the SPD technique is presented. Local hysteresis loops show the eddy current effect in conducting magnetic metallic samples. The field calibration with the surface coil is also discussed.

Author Keywords: Author Keywords: Magnetic measurements; Permanent magnets

http://dx.doi.org/10.1016/j.jallcom.2003.09.063