<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The magnetic Barkhausen noise (MBN) measurement technique is a popular magnetic method used for non destructive detection of microstructural changes in ferromagnetic materials. The MBN parameters depend on the gap between the excitation yoke and measured object. To suppress the negative influence of lift off, we tried to find a parameter of the MBN, which could be independent of lift off changing in a practical range. The lift off effect was analysed experimentally on construction steel samples with various levels of carbon content. We found that the amplitude distribution is a promising parameter of MBN in this regard. Measurement results showed that the slope of amplitude distribution was roughly independent of lift off.</p></abstract>

The magnetic Barkhausen noise (MBN) measurement technique is a popular magnetic method used for non destructive detection of microstructural changes in ferromagnetic materials. The MBN parameters depend on the gap between the excitation yoke and measured object. To suppress the negative influence of lift off, we tried to find a parameter of the MBN, which could be independent of lift off changing in a practical range. The lift off effect was analysed experimentally on construction steel samples with various levels of carbon content. We found that the amplitude distribution is a promising parameter of MBN in this regard. Measurement results showed that the slope of amplitude distribution was roughly independent of lift off.

Influence of lift off on Barkhausen noise parameters of construction steel

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":"Influence of lift off on Barkhausen noise parameters of construction steel"}

The magnetic Barkhausen noise (MBN) measurement technique is a popular magnetic method used for non destructive detection of microstructural changes in...

Influence of lift off on Barkhausen noise parameters of construction steel

Published Online: Dec 31, 2018

Page range: 474 - 476

Received: Feb 13, 2018

DOI: https://doi.org/10.2478/jee-2018-0079

Keywords
Barkhausen noise, steel, yoke, lift off

© 2018 Vladimír Jančárik et al., published by Sciendo

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

Influence of lift off on Barkhausen noise parameters of construction steel

Published Online: Dec 31, 2018

Page range: 474 - 476

Received: Feb 13, 2018

DOI: https://doi.org/10.2478/jee-2018-0079

KeywordsBarkhausen noise, steel, yoke, lift off

© 2018 Vladimír Jančárik et al., published by Sciendo

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

Keywords
Barkhausen noise, steel, yoke, lift off