Dynamic normalization of the Barkhausen noise signal

0521433 - FZÚ 2020 RIV NL eng J - Článek v odborném periodiku
Stupakov, Alexandr
Dynamic normalization of the Barkhausen noise signal.
Journal of Magnetism and Magnetic Materials. Roč. 482, Jul (2019), s. 135-147. ISSN 0304-8853. E-ISSN 1873-4766
Grant CEP: GA ČR GA13-18993S
Institucionální podpora: RVO:68378271
Klíčová slova: magnetization dynamics * Barkhausen noise * iron steels
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.717, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.jmmm.2019.03.036

The aim of this research is to propose a normalization principle for the Barkhausen noise response eliminating a dynamic contribution to the basic signal. To achieve this, it is suggested to reduce the rms profile (envelope) of the Barkhausen noise by the square root of the field rate of change. Validity of the suggested normalization principle has been proved for variousiron-based steels. At low magnetizing frequencies, the proposed normalization fully compensates the envelope differences giving a stable quasi-static peak near coercive field. The shape of these stabilized peaks demonstrates a strong resemblance to the differential permeability curves.
Trvalý link: http://hdl.handle.net/11104/0306057