Analog of the induction law for the magnetic Barkhausen noise

0531703 - FZÚ 2021 RIV NL eng J - Journal Article
Stupakov, Alexandr - Perevertov, Alexej
Analog of the induction law for the magnetic Barkhausen noise.
Journal of Magnetism and Magnetic Materials. Roč. 498, Mar (2020), s. 1-5, č. článku 166238. ISSN 0304-8853. E-ISSN 1873-4766
R&D Projects: GA MŠMT(CZ) EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : Barkhausen noise * Faraday's law * sensing coil
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.993, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.jmmm.2019.166238

The influence of coil turn number n and sample cross-section S on the Barkhausen noise signal has been studied. Combining the obtained results with our recent findings on the dynamic properties of the magnetic Barkhausen noise, we propose a Faraday-like relation for its rms envelope in the formU(rms) (H) proportional to root S center dot dH/dt. Validity of this relation is proved for classical sample-wrapping coils of the same geometry testing semi-hard thin ribbons of martensitic iron-based steel. The introduced square root dependence is explained by stochastic multiple overlapping of the independent Barkhausen pulses.
Permanent Link: http://hdl.handle.net/11104/0310319