Title :
Barkhausen noise calculation by hysteresis model parameters
Author :
Hauser, Hans ; Augustyniak, Boleslaw ; Radczuk, Michal
Author_Institution :
Vienna Univ. of Technol., Austria
fDate :
9/1/2002 12:00:00 AM
Abstract :
The Barkhausen noise voltage u versus applied field H is calculated by using an energetic hysteresis model. It is assumed that u is proportional to the domain-wall (DW) velocity depending on H and to the number of irreversibly jumping DWs. The results indicate a strong dependence of the u/H curves on the model parameters. A considerable qualitative agreement is achieved with measurements on grain-oriented FeSi steel sheets.
Keywords :
Barkhausen effect; ferromagnetic materials; iron alloys; magnetic domain walls; magnetic hysteresis; magnetic noise; magnetisation reversal; nondestructive testing; silicon alloys; Barkhausen noise voltage; Fe-Si; NDT; applied field dependence; domain wall pinning sites; domain-wall velocity; energetic hysteresis model; grain-oriented electric steel sheets; irreversibly jumping walls; magnetization reversal velocity; total energy density; Demagnetization; Magnetic field measurement; Magnetic force microscopy; Magnetic hysteresis; Magnetic noise; Magnetic separation; Magnetization; Statistics; Steel; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.803584
