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Frequency dependence of output voltage generated from bundled compound magnetic wires

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2 Author(s)
Y. Takemura ; Yokohama Nat. Univ., Japan ; A. Matsushita

The output voltage generated from bundles of twisted Vicalloy wires was studied. When the magnetically soft layers of the wires were reversed by an applied external magnetic field, a pulse voltage, owing to a large Barkhausen jump, was induced in a search coil wound around the wires. The output did not depend on the exciting frequency of the applied field for the bundled wires with n (number of bundled wires) <5. The frequency dependence for n=10 was attributed to the demagnetizing field in the thicker shape of the bundle. The bundled wires of n=25 exhibited dispersed peaks in output waveform due to a self-biasing effect, which was advantageous for obtaining a rectangular output waveform

Published in:

IEEE Transactions on Magnetics  (Volume:37 ,  Issue: 4 )