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Principles of a magnetic method for labelling moving items

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3 Author(s)
G. Couderchon ; Imphy S.A. Research Center, Imphy, France ; J. Guilgue ; P. Lagarde

This paper describes a new system for storing and reading data on moving items in disturbed environments. Basically this new process uses the magnatic switching of different semi-remanent thin wires. As semi-remanant wires switch their magnetization when the driving magnetic field reaches their coercive force, the coercive forces and the induced signals are used to encode the data. A simplified theory of the physics of the system and examples of use are given.

Published in:

IEEE Transactions on Magnetics  (Volume:17 ,  Issue: 6 )