Coded labels with amorphous magnetoelastic resonators

Author

Arndt, Michael ; Kiesewetter, Lothar

Author_Institution

Dept. of Microsystems Eng., BTU-Cottbus, Cottbus, Germany

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3374

Lastpage

3376

Abstract

In this paper, a coding and decoding technique for labels based on magnetoelastic resonators is presented. For coding of the labels, the length of the resonators as well as their angular direction in the label is used. As an external bias magnetic field is used for decoding, no semihard magnetic strips are needed in the label. Low cost plastic housings with a low damping coating have been developed for these labels to achieve a high-level resonator signal.

Keywords

amorphous magnetic materials; decoding; encoding; identification technology; magnetoelastic effects; magnetostrictive devices; plastic packaging; resonators; surveillance; amorphous magnetoelastic resonators; article surveillance systems; coding technique; decoding technique; external bias magnetic field; high-level resonator signal; labels; low cost plastic housings; low damping coating; resonator angular direction; resonator length; ribbon-shaped magnetoelastic resonators; Amorphous magnetic materials; Amorphous materials; Decoding; Magnetic fields; Magnetic materials; Magnetic resonance; Magnetostriction; Resonant frequency; Strips; Surveillance;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802287

Filename

1042557