A New Current Sensor Based on Giant Magnetoimpedance Effect

Cristian Fosalau, Marinel Temneanu, Cristian Zet, Emil Vremeră

Abstract

The paper presents a new current sensor whose operation principle is based on the Giant Magnetoimpedance Effect (GME) occurring in non-magnetostrictive magnetic amorphous wires (MAW). This effect consists in sudden variations of the voltage drop picked-up from the ends of an amorphous wire when a high frequency current flows through it and it is subjected to an external axial magnetic field. The wire is mounted around a cylindrical conductor, through which the measured current flows, thus creating the necessary axial field to which the sensor is sensitive. Construction, operation principle and characteristics of the sensor along with details related to its performances are presented.

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IMEKO-TC4-2005-090.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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