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The effect of mechanical stress on a Barkhausen noise signal integrated across a cycle of ramped magnetic field

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2 Author(s)
Sablik, M.J. ; Southwest Research Institute, P.O. Drawer 28510, San Antonio, Texas 78228‐0510 ; Augustyniak, B.

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Experimental Barkhausen data are presented for XC10 French steel at various stress levels. The experimental data show an apparent almost linear correlation with stress of WH (hysteresis loss) and WBN (Barkhausen noise amplitude integrated over H). A model previously suggested by Sablik for Barkhausen noise stress and field dependence is used for analysis of the experimental data. With slight modifications of the previous model, it has been possible to produce semiquantitative fits to the Barkhausen peaks as a function of H while at the same time obtaining the apparent linear correlation between WH and WBN and stress. The model suggests however that the apparent linear correlation may only apply to certain types of materials. In addition, the fit to experiment suggests that additional refinements to the model may yet be necessary. © 1996 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:79 ,  Issue: 2 )

Date of Publication:

Jan 1996

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