Magnetic field sensitivity of LC filter-type magnetoimpedance sensors

Seung Dae Kim, Kwang Ho Shin, Jinwoo Kim, Young-Hak, Sang Ho Lim, Geon Sa-gong

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In this study, we discuss the basic concept and applicability of the LC high pass filter configuration for the magnetoimpedance sensors, and examine its performance with SPICE simulation and experiment using amorphous ribbon pattern as a sensor element. Special attention is given to the sensitivity of the filter configuration. The LC filter circuit shows the output-changing ratio per 1 Oe of 5% at 50 MHz. This value is larger in 2.5 times than the output-changing ratio expected in a conventional bridge circuit with constant current excitation.

Original languageEnglish
Pages (from-to)e391-e393
JournalJournal of Magnetism and Magnetic Materials
Volume304
Issue number1
DOIs
Publication statusPublished - 2006 Sep

Keywords

  • LC filter circuit
  • Magnetoimpedance sensors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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