<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The magnetic Barkhausen noise (MBN) measurement method is a widely used non-destructive evaluation technique used for inspection of ferromagnetic materials. Besides other influences, the excitation yoke lift-off is a significant issue of this method deteriorating the measurement accuracy. In this paper, the lift-off effect is analysed mainly on grain oriented Fe-3%Si steel subjected to various heat treatment conditions. Based on investigation of relationship between the amplitude distribution of MBN and lift-off, an approach to suppress the lift-off effect is proposed. Proposed approach utilizes the digital feedback optimising the measurement based on the amplitude distribution of MBN. The results demonstrated that the approach can highly suppress the lift-off effect up to 2 mm.</p></abstract>

The magnetic Barkhausen noise (MBN) measurement method is a widely used non-destructive evaluation technique used for inspection of ferromagnetic materials. Besides other influences, the excitation yoke lift-off is a significant issue of this method deteriorating the measurement accuracy. In this paper, the lift-off effect is analysed mainly on grain oriented Fe-3%Si steel subjected to various heat treatment conditions. Based on investigation of relationship between the amplitude distribution of MBN and lift-off, an approach to suppress the lift-off effect is proposed. Proposed approach utilizes the digital feedback optimising the measurement based on the amplitude distribution of MBN. The results demonstrated that the approach can highly suppress the lift-off effect up to 2 mm.

Optimisation of amplitude distribution of magnetic Barkhausen noise

Slovak University of Technology in Bratislava

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Optimisation of amplitude distribution of magnetic Barkhausen noise"}

The magnetic Barkhausen noise (MBN) measurement method is a widely used non-destructive evaluation technique used for inspection of ferromagnetic materials....

Optimisation of amplitude distribution of magnetic Barkhausen noise

Published Online: Nov 28, 2017

Page range: 384 - 389

Received: May 29, 2017

DOI: https://doi.org/10.1515/jee-2017-0071

Keywords
Barkhausen noise, lift-off, yoke, grain size

© 2017 Jozef Pal’a et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Optimisation of amplitude distribution of magnetic Barkhausen noise

Published Online: Nov 28, 2017

Page range: 384 - 389

Received: May 29, 2017

DOI: https://doi.org/10.1515/jee-2017-0071

KeywordsBarkhausen noise, lift-off, yoke, grain size

© 2017 Jozef Pal’a et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Barkhausen noise, lift-off, yoke, grain size