Title :
Coded labels with amorphous magnetoelastic resonators
Author :
Arndt, Michael ; Kiesewetter, Lothar
Author_Institution :
Dept. of Microsystems Eng., BTU-Cottbus, Cottbus, Germany
fDate :
9/1/2002 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802287
