{"title":"Attenuation of Magnetic Effects in Soft Amorphous Ribbons","authors":"Ezio Puppin;Maurizio Zani;Ermanno Pinotti","doi":"10.1109/TMAG.2025.3529742","DOIUrl":null,"url":null,"abstract":"Magnetization reversals taking place in ferromagnetic materials can be detected using pickup coils wrapped around the sample, the so-called Barkhausen noise (BN). The voltage peaks induced in the coils depend both on the value <inline-formula> <tex-math>${\\Delta }M$ </tex-math></inline-formula> of each magnetization reversal and on the attenuation <inline-formula> <tex-math>$V(x)$ </tex-math></inline-formula> of the inductive signal after traveling a distance x inside the material. Here, we present a procedure for obtaining <inline-formula> <tex-math>$V(x)$ </tex-math></inline-formula> starting from the BN induced in two pickup coils separated by a distance variable between 2 and 40 mm. This procedure starts from the experimental values of R, the ratio of the signals induced in coincidence by the same magnetization reversal in the two coils, measured in a thin amorphous ribbon of Fe63B64Si8Ni15. Working with the signal ratio allows us to get rid of the dependency on <inline-formula> <tex-math>${\\Delta }M$ </tex-math></inline-formula>. A mathematical model for extracting <inline-formula> <tex-math>$V(x)$ </tex-math></inline-formula> from the histogram of the measured values of R is presented.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 3","pages":"1-6"},"PeriodicalIF":2.1000,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Magnetics","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10840350/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Magnetization reversals taking place in ferromagnetic materials can be detected using pickup coils wrapped around the sample, the so-called Barkhausen noise (BN). The voltage peaks induced in the coils depend both on the value ${\Delta }M$ of each magnetization reversal and on the attenuation $V(x)$ of the inductive signal after traveling a distance x inside the material. Here, we present a procedure for obtaining $V(x)$ starting from the BN induced in two pickup coils separated by a distance variable between 2 and 40 mm. This procedure starts from the experimental values of R, the ratio of the signals induced in coincidence by the same magnetization reversal in the two coils, measured in a thin amorphous ribbon of Fe63B64Si8Ni15. Working with the signal ratio allows us to get rid of the dependency on ${\Delta }M$ . A mathematical model for extracting $V(x)$ from the histogram of the measured values of R is presented.
期刊介绍:
Science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage. The IEEE Transactions on Magnetics publishes scholarly articles of archival value as well as tutorial expositions and critical reviews of classical subjects and topics of current interest.