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Application of Magnetic Alloy Ribbons to Extremely Compact EMI Noise Filters

Research Project

Project/Area Number 10837002
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 電磁場環境
Research InstitutionYamagata University

Principal Investigator

ISHII Osamu  Yamagata University, Graduate School of Science and Engineering, Professor, 大学院・理工学研究科, 教授 (80282234)

Co-Investigator(Kenkyū-buntansha) SHINOHARA Shin-ichi  Electromagnetic Compatibility Research Laboratories Co., Ltd., Deveice Countermeasure Technology Research Department, General Manager, 機器対策技術部, 部長
MORITA Hiroaki  Yamagata University, Faculty of Engineering, Professor, 工学部, 教授 (50005914)
SATO Takashi  Tokyo Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (50260534)
KAMBE Shiro  Yamagata University, Greduate School of Science and Engineering, Assistant Professor, 大学院・理工学研究科, 助教授 (20211188)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2000: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1999: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
KeywordsFilter / Amorphous / Magnetic / Noise / Manocrystalline / EMI / Cable / 磁性体 / フィルタ / 磁気損失 / シールド / 磁気特性 / 微結晶 / 電磁障害 / EMC / EMI
Research Abstract

Magnetic properties and impedance characteristics of thin films and ribbons were investigated to achieve very compact EMI noise filters. Heat treatments enhanced the soft magnetic properties and the impedance of Co-based amorphous and Fe-based nanocrystalline ribbons. It was demonstrated that the ribbons annealed under optimized conditions provided the same noise attenuation value as a conventional noise filter(a ferrite core)but with 1/24th the volume.
Next, the Co-based amorphous ribbon was applied as a shielding material of a signal cable. It was clarified that a cable wrapped with the Co-based amorphous ribbon radiated very small EMI noise and had very high immunity to external noise. It was also proved that signal loss, as well as the EMI noise attenuation and immunity to external noise, was greatly improved by using Al foil shielding between cores and the Co-based amorphous ribbon shielding. Moreover, the signal loss, EMI noise radiation and immunity were improved by grounding the Co-based amorphous ribbons.
Moreover, the superior EMI noise attenuation characteristic was not influenced by rupture or crack of the Co-based amorphous ribbons. Consequently, it was confirmed that cables shielded with both Al and magnetic ribbons had great potential for long time service.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 石井修: "パーマロイ薄膜を用いたノイズフィルタ"電気学会論文誌A. 119-A,1. 86-91 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 石井修: "Fe系微結晶薄帯のノイズフィルタ応用"日本応用磁気学会誌. 23,4-2. 1377-1380 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Osamu Ishii: "Application of Fe-Based Nanocrystalline ribbon as a Noise Filter"IEEE Trans.Magn.. 35,5. 3184-3186 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Osamu Ishii: "Application of FeCuNbSiB ribbon to a Noise Filter"Trans.Mater.Res.Soc.Jpn.. 26(印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 電気学会マグネティクス技術委員会: "磁気工学の基礎と応用"コロナ社. 230 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Osamu Ishii: "Noise filters made of permalloy films"Tans.IEEE Japan. 119-A,1. 86-91 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Osamu Ishii: "Application of Fe-Based Nanocrystalline ribbons to a Noise Filter"J.Magn, Soc.Jpn.. 23,4-2. 1377-1380 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Osamu Ishii: "Application of Fe-Besed Nanocrystalline ribbon as a Noise Filter"IEEE Trans, Magn.. 35,5. 3184-3186 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Osamu Ishii: "Application of FeCuNbSiB ribbon to a Noise filter"Trans.Mater.Res, Soc.Jpn.. 26(in presss). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Osamu Ishii: "Application of Nanocrystalline FeCuNbSiB Ribbon to a Noise Filter"Trans.Mat.Res.Soc.Jpn.. (in press). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 石井修: "Fe系微結晶薄帯のノイズフィルタ応用"日本応用磁気学会誌. 23,4-2. 1377-1380 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Osamu Ishii: "Application of Fe-based nanocrystalline ribbon as a noise filter"IEEE Trans.Magn.. 35,5. 3184-3186 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 電気学会マグネティクス技術委員会: "磁気工学の基礎と応用"コロナ社. 230 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 石井 修: "パーマロイ薄膜を用いたノイズフィルタ" 電気学会論文誌A. 119-A,1. 86-91 (1999)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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