Barkhausen-noise and mechanical sensitivity in finemet-type materials

Gergely Eszenyi, Sándor Szabó, Lajos Harasztosi, Ferenc Zámborszky, József Nyéki, Zoltán Erdélyi, Dezso L. Beke

Research output: Contribution to journalArticle


Measuring technique, developed at our Laboratory for the investigation of ferromagnetic industrial materials, experimental results obtained and their analysis are reviewed. The magnetic properties (permeability, mechanical sensitivity) of as received and heat treated Finemet type ribbons (Fe75Si15NbBCu) were measured with common industrial equipments. The above properties were correlated with magnetic Barkhausen noise parameters. The distributions of peak area A and peak noise energy E were analyzed and it was found that distribution of the noise parameters P(x) (where x = A or E), were in good agreement with the theory of self organized criticality (SOC), satisfying power laws in the form P(x) ~x. Useful correlation between the noise parameters and the mechanical sensitivity has been established. The noise did not considerably depend on the other parameters of ribbons.

Original languageEnglish
Pages (from-to)66-69
Number of pages4
JournalJournal of Electrical Engineering
Issue number7 SUPPL
Publication statusPublished - 2008


  • Barkhausen noise measurement
  • Finemet-type alloys
  • Mechanical sensitivity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    Eszenyi, G., Szabó, S., Harasztosi, L., Zámborszky, F., Nyéki, J., Erdélyi, Z., & Beke, D. L. (2008). Barkhausen-noise and mechanical sensitivity in finemet-type materials. Journal of Electrical Engineering, 59(7 SUPPL), 66-69.