Current sensor application of asymmetric giant magnetoimpedance in amorphous materials

Y. W. Rheem, C. G. Kim, C. O. Kim, S. S. Yoon

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

The performance of the current sensor based on giant magnetoimpedance (GMI) effect in amorphous ribbon has been tested. The toroidal-type ribbon after field annealing shows a maximum GMI ratio of 16% at 100 kHz measuring frequency with corresponding field sensitivity of 35% Oe-1. The sensor output voltage increases with applied current up to 1A with a good linearity. The sensor performance for DC current is better than that for AC current.

Original languageEnglish
Pages (from-to)19-21
Number of pages3
JournalSensors and Actuators, A: Physical
Volume106
Issue number1-3
DOIs
StatePublished - 15 Sep 2003

Bibliographical note

Funding Information:
This work was supported by the Korean Science and Engineering Foundation through Research Center for Advanced Magnetic Materials at Chungnam National University.

Keywords

  • Amorphous ribbon
  • Current sensor
  • Giant magnetoimpedance
  • Soft magnetic materials

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