Magneto-inductive element

Author

Mohri, K. ; Kawashima, K. ; Kohzawa, T. ; Yoshida, H.

Author_Institution

Dept. of Electr. Eng., Nagoya Univ., Japan

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1245

Lastpage

1248

Abstract

A novel sensitive magnetic head using a magnetoinductive (MI) effect in zero- or negative-magnetostrictive amorphous wires is described. The MI effect refers to the change of an inductance L for an external magnetic field in a ferromagnetic wire element magnetized with a wire AC current I_AC. A 5-mm-length MI element using a folded almost zero-magnetostrictive amorphous wire having a 120-μm diameter showed a sensitive rate of change of its inductance of more than 50% for an external low frequency field of about 10 Oe (800 A/m) applied in parallel with the element. The a-wire MI element works for a wire current having frequencies up to 1 MHz

Keywords

inductance; magnetic heads; magnetic properties of amorphous substances; magnetostrictive devices; 1 MHz; 120 micron; 5 mm; CoSiB; FeCoSiB; FeSiB; ferromagnetic wire element; inductance; magneto-inductive element; magnetoinductive effect; negative-magnetostrictive amorphous wires; sensitive magnetic head; wire AC current; wire current; zero magnetostrictive amorphous wires; Amorphous magnetic materials; Amorphous materials; Circuits; Electric resistance; Inductance; Magnetic flux; Magnetic heads; Magnetostriction; Voltage; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250629

Filename

250629