A NOVEL CURRENT SENSOR USING MAGNETOSTRICTIVE AMORPHOUS WIRES

Cristian Fosalau, Cristian Zet, Marinel Temneanu, Mihai Antoniu

Abstract

The current sensor presented in the paper is built around a relatively new category of materials expressed by magnetic amorphous wires. Its operating principle is based on the Matteucci effect occurring in amorphous wires showing high level of magnetostriction. The wire is wound around the conductor through which the current to be measured flows. Under certain conditions, at the ends of the wire sharp voltage pulses appear whose amplitude depends on the intensity of the circumferential magnetic field generated on the conductor surface and, implicitly, on the current intensity.

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IMEKO-TC4-2004-109.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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