Frequency dependence of output voltage generated from bundled compound magnetic wires

Author

Takemura, Yasushi ; Matsushita, Akira

Author_Institution

Yokohama Nat. Univ., Japan

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2862

Lastpage

2864

Abstract

The output voltage generated from bundles of twisted Vicalloy wires was studied. When the magnetically soft layers of the wires were reversed by an applied external magnetic field, a pulse voltage, owing to a large Barkhausen jump, was induced in a search coil wound around the wires. The output did not depend on the exciting frequency of the applied field for the bundled wires with n (number of bundled wires) <5. The frequency dependence for n=10 was attributed to the demagnetizing field in the thicker shape of the bundle. The bundled wires of n=25 exhibited dispersed peaks in output waveform due to a self-biasing effect, which was advantageous for obtaining a rectangular output waveform

Keywords

Barkhausen effect; cobalt alloys; demagnetisation; ferromagnetic materials; iron alloys; magnetisation reversal; vanadium alloys; wires (electric); Barkhausen jump; Fe-Co-V; Vicalloy; bundled compound magnetic wire; demagnetizing field; frequency dependence; magnetization reversal; output voltage generation; pulse voltage; search coil; self-biasing effect; twisted semi-hard magnetic wire; Coils; Demagnetization; Dispersion; Frequency dependence; Magnetic fields; Shape; Soft magnetic materials; Voltage; Wires; Wounds;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951329

Filename

951329