Low-frequency magnetic field detection for metal sensing

Toshihiko Kiwa, Tomoaki Kawata, Keiji Tsukada

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A new type of magnetic field detection system, which can operate at a frequency below 1 kHz, is proposed and developed. The system consists of a 40-turn-coil to generate the magnetic field and a magneto resistive sensor to detect both the amplitude and the phase signal of the magnetic field induced by eddy-current and magnetization of the samples. The magnetic field detection of ferro- and non-magnetic samples using the system is demonstrated and discussed.

Original languageEnglish
Pages (from-to)447-451
Number of pages5
JournalInternational Journal of Applied Electromagnetics and Mechanics
Issue number1-4
Publication statusPublished - 2007


  • Low-frequency
  • Magnetic field detector
  • Metal sensing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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