A new amorphous ribbon fluxgate sensor based on torsional-creep-induced anisotropy

Author

Nielsen, Otto V. ; Gutierrez, J. ; Hernando, B. ; Savage, Howard T.

Author_Institution

Dept. of Electrophys., Tech. Univ. of Denmark, Lyngby, Denmark

Volume

26

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

276

Lastpage

280

Abstract

The fluxgate sensor presented consists of a hairpin-shaped nonmagnetostrictive amorphous metal ribbon which carries the excitation AC current. Even harmonics are induced in a surrounding coil, which can be used both as a pickup coil and as a field compensation coil. The principle of operation is similar to that of a traditional ring-core system except that the core itself carries the excitation current. The sensor competes favorably with traditional fluxgate sensors with respect to simplicity, miniaturization, signal level, and noise level

Keywords

coils; electric sensing devices; magnetic anisotropy; amorphous ribbon fluxgate sensor; excitation AC current; field compensation coil; hairpin-shaped nonmagnetostrictive amorphous metal ribbon; miniaturization; noise level; pickup coil; signal level; torsional-creep-induced anisotropy; Amorphous magnetic materials; Amorphous materials; Anisotropic magnetoresistance; Coils; Detectors; Magnetic anisotropy; Magnetic cores; Magnetic sensors; Perpendicular magnetic anisotropy; Wire;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.50554

Filename

50554