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Published on: May 10, 2019
Strain Dependence of Hysteretic Giant Magnetoimpedance Effect in Co-Based Amorphous Ribbon
Michał Nowicki1, Piotr Gazda2, Roman Szewczyk2
1Warsaw University of Technology, Institute of Metrology and Biomedical Engineering, 02-495 Warsaw, Poland. m.nowicki@mchtr.pw.edu.pl.
Abstract:
The significant strain dependence of the hysteretic Giant Magnetoimpedance (GMI) effect in a Co67Fe3Cr3B12Si15 amorphous alloy in a low magnetizing field is presented. A simplistic test stand capable of continuous measurements of GMI characteristics under the influence of strain is detailed. Based on the results, a stress-impedance (SI) sensor is proposed, with a gauge factor similar to semiconductor strain gauges but more robust. An effective method of minimizing external magnetic field influence on the SI effect is given.
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