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Highly sensitive high frequency carrier type thin film sensor

Research Project

Project/Area Number 14350214
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Measurement engineering
Research InstitutionTohoku University

Principal Investigator

ARAI Ken ichi  Tohoku University, Research Institute of Electrical Communication, Professor, 電気通信研究所, 教授 (40006268)

Co-Investigator(Kenkyū-buntansha) YABUKAMI Shin  Tohoku University, Research Institute of Electrical Communication, Research Associate, 電気通信研究所, 助手 (00302232)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥14,300,000 (Direct Cost: ¥14,300,000)
Fiscal Year 2003: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 2002: ¥9,300,000 (Direct Cost: ¥9,300,000)
Keywordsphase detection / high frequency carrier type thin film sensor / magnetic field / highly sensitive / Dual Mixer Time Difference Method / 高周波キャリア型薄膜磁界センサ / 超高感度磁界計測
Research Abstract

We propose herein a method by which to measure the phase of the carrier in a high frequency carrier-type sensor (GMI sensor). The proposed method is based on a carrier suppression technique. The phase of the carrier signal changed dramatically by approximately 180 degrees around the carrier suppression when a small dc field was applied. The phase sensitivity for a small DC field reached 3600 degrees/Oe. In addition we investigate the relationship between phase sensitivity and suppressed carrier level in the suppression circuit, the measured data nearly corresponded to theoretical data. We have fabricated a sensor system which is composed of sensor element and Dual Mixer Time Difference (DMTD) method to detect a change of phase difference as a function of small magnetic field. Sensor element was fabricated as a meander pattern, and the phase difference was about 5 degrees/Oe. The jitter level was decreased about 5.5x10^<-4> degrees when the sample rate was 1 kHz. The resolution of magnetic field detection was obtained about 3.3x10^<-6> Oe/Hz^<1/2>.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] 薮上信: "位相計測による高周波キャリア型薄膜磁界センサ"日本応用磁気学会誌. 27巻. 425-428 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Yabukami: "Phase Detection of High Frequency Carrier-Type Thin Film Sensor"IEEE Transactions on Magnetics. Vol.39. 3196-3198 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 薮上 信: "位相検出による高周波キャリア型薄膜磁界センサ"電気学会マグネティックス研究会資料. MAG-03-18. (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 小澤哲也: "位相差計測による高周波キャリア型薄膜センサの評価"日本応用磁気学会誌. 28巻. 718-721 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Ozawa: "High Frequency Carrier-Type Thin Film Sensor by Phase Difference Measurement"The 1st Student-Organizing International Mini-Conference on Information Electronics System. B2-10. 158-160 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 小澤哲也: "位相差検出による高周波キャリア型磁界センサシステム"平成15年度スピニクス特別研究会資料. 03-5-21. (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 小澤哲也: "Dual Mixer Time Difference法による位相差検出型高周波キャリア型磁界センサシステム"電気学会マグネティックス研究会資料. MAG-03-187. 41-44 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Yabukami: "High-Frequency Carrier Type Thin Film Magnetic Field Sensor Using Phase Detection"Transactions of the Magnetics Society of Japan. vol.27. 425-428 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Yabukami: "Phase Detection of High Frequency Carrier-Type Thin Film Sensor"IEEE Transactions on Magnetics. vol.39. 3196-3198 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] S.Yabukami: "High-Frequency-Carrier Type Thin Film Magnetic Field Sensor Using Phase Measurement"Technical Report of The Institute of Electrical Engineers of Japan. Mag-03-18. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Ozawa: "Estimation of High-Frequency Carrier Thin Film Magnetic Sensor that Measures Phase Difference"Transactions of the Magnetics Society of Japan. vol.28. 718-721 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Ozawa: "High Frequency Carrier-Type Thin Film Sensor by Phase Difference Measurement"The 1st Student-Organizing International Mini-Conference on Information Electronics System. vol.B2-10. 158-160 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Ozawa: "High Frequency Carrier-Type Magnetic Field Sensor using Phase Difference Detection Measurement"Technical Report of Spinics-Kenkyukai. 03-5-21. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] T.Ozawa: "High frequency carrier-type magnetic sensor system with phase difference detection using Dual Mixer Time Difference method"Technical Report of The Institute of Electrical Engineers of Japan. MAG-03-187. 41-44 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 薮上信: "位相計測による高周波キャリア型薄膜磁界センサ"日本応用磁気学会誌. 27巻. 425-428 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Yabukami: "Phase Detection of High Frequency Carrier-Type Thin Film Sensor"IEEE Transactions on Magnetics. Vol.39. 3196-3198 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 薮上 信: "位相検出による高周波キャリア型薄膜磁界センサ"電気学会マグネティックス研究会. MAG-03-18. 25-38 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 小澤哲也: "位相差計測による高周波キャリア型薄膜センサの評価"日本応用磁界学会誌. (印刷中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 薮上 信: "位相計測による高周波キャリア型薄膜磁界センサ"日本応用磁気学会誌. 27(印刷中). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 薮上 信: "位相検出による高周波キャリア型薄膜磁界センサ"電気学会マグネティックス研究会資料. MAG-03-18 (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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