Magnetic field imaging using computer tomography. Vector reconstruction

Hideo Saito, Akihiro Miyamoto, Masato Nakajima, Tatsuru Morozumi, Shin'ichi Yuta

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Abstract

This paper proposes a new method of imaging the distribution of a magnetic field in an arbitrary section in a space with vector indication, using computer tomography (CT). The method measures the distribution of a magnetic field by moving, at a constant speed, a line conductor and a rectangular coil in a magnetic-field plane, and by applying a CT algorithm to data representing the induced voltages in the conductor and coil. Unlike conventional methods (such as an individual measurement of each point in a field using a Hall-effect sensor), the proposed method can simply measure a magnetic field with a vector representation. An experimental apparatus based on the method was constructed, and a magnetic field produced by a permanent magnet was measured using this apparatus. The results show the usefulness of the method.

Original languageEnglish
Pages (from-to)69-78
Number of pages10
JournalSystems and Computers in Japan
Volume21
Issue number13
Publication statusPublished - 1990 Dec 1

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ASJC Scopus subject areas

  • Theoretical Computer Science
  • Information Systems
  • Hardware and Architecture
  • Computational Theory and Mathematics

Cite this

Saito, H., Miyamoto, A., Nakajima, M., Morozumi, T., & Yuta, S. (1990). Magnetic field imaging using computer tomography. Vector reconstruction. Systems and Computers in Japan, 21(13), 69-78.