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2003 Fiscal Year Final Research Report Summary

Frequency Scanning System by Multi-frequency Excitation Spectrogram Method

Research Project

Project/Area Number 13555118
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Measurement engineering
Research InstitutionOita University

Principal Investigator

ENOKIZONO Masato  Oita University, Faculty of Engineering, Department of Electrical and Electronic Engineering, Professor, 工学部, 教授 (40136784)

Co-Investigator(Kenkyū-buntansha) TSUCHIDA Yuji  Oita University, Faculty of Engineering, Department of Electrical and Electronic Engineering, Research Assistant, 工学部, 助手 (80284785)
AKITA Masanori  Oita University, Faculty of Engineering, Department of Electrical and Electronic Engineering, Associate Professor, 工学部, 助教授 (40192900)
TODAKA Takasi  Oita University, Faculty of Engineering, Department of Electrical and Electronic Engineering, Associate Professor, 工学部, 助教授 (50163994)
OKA Mohachirou  Oita National College of Technology, Department of Controlling Mechanical Eng., Professor, 教授 (80107838)
Project Period (FY) 2001 – 2003
KeywordsMulti-frequency excitation / Spectrogram / Nondestructive testing / Electromagnetic evaluation / Fatigue estimation / Defect detection
Research Abstract

One purpose of this project is to present new neural network model used for eddy current multi-frequency system simulation and flaws identification. In this project a Multi-Frequency Excitation and Spectrogram Eddy Current System (MFES) and an inverse neural model were used to detect and identify natural flaws in steam generator tubes. It is shown that the applied dynamic neural model of the ECT sensor offers very high speed of operation and guarantees reliability of the recognition results.
Next, we present chaotic behavior of the Barkhausen noise generated in magnetic fields. This noise is generated by the magnetization jumps caused by abrupt depinning of magnetic domains. We have studied the application of the noise to nondestructive testing techniques. The results showed that the Barkhausen noise could be continuously generated in a rotational magnetic field and it was within the bounds of possibility that the signal had information referent to detects or flows in measuring materials. We investigated to make the existence of Chaos in the Barkhausen noise clear from the reconstructed attractor by Embedding.
Then we developed the portable apparatus for this system.

  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] Y.Tsuchida, M.Enokizono: "Stress Evaluation by Characteristic of Barkhausen Noise"Review of Quantitative Nondestructive Evaluation. 22. 1545-1551 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Kai, Y.Tsuchida, M.Enokizono, S.Nagata: "Evaluation of Case Hardening Depth by MFES Method"Studies in Applied Electromagnetics and Mechanics 24, Electromagnetic Nondestructive Evaluation. VIII. 153-158 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡茂八郎, 他: "Estimation of Fatigue Damage in Austenitic Stainless Steel Using the Perpendicular Residual Magnetization Method for NDE"Record of Fourth Asian Symposium on Aplied Electromagnetics. 59 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Tsuchida, T.Ando, M.Enokizono: "Stress Evaluation by Chaotic Characteristic of Barkhausen Noise"IEEE Transactions on Magnetics. 38,N5. 3210-3212 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Oka, T.Yakushiji, Y.Tsuchida, M.Enokizo: "Evaluation of Bending Fatigue in Austenitic Stainless Steel Plates Using the FG Magnetic Sensor"JSAEM Studies in Applied Electromagnetics and Mechanics. 12. 49-52 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Todaka, M.Oka, M.Enokizono, R.Sikora, M.Komorowski, S.Gratkowski: "Finite Element Analysis of Support Problems in Non-Destructive Evaluation"JSAEM Studies in Applied Electromagnetics and Mechanics. 12. 92-95 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] R.Sikora, M.Komorowski, S.Gratkowski, M.Enokizono, T.Chad: "Mathematical Model of a Magnetoresistive Transducer for Eddy Current Nondestructive Testing of Materials"International Journal of Applied Electromagnetics and Mechanics, IOS Press, Part III. 14. 21-25 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Chady, M.Enokizono, R.Sikora, K.Takeuchi, T.Kinoshita: "Eddy Current Testing of Concrete Structures"International Journal of Applied Electromagnetics and Mechanics, IOS Press, Part III. 14. 33-37 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomasz Chady, Masato Enokizono: "Neural Network Models of Eddy Current Sensor"Journal of The Magnetics Society of Japan. 25,4-2. 987-990 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Oka, T.Yakushiji, Y.Tsuchida, M.Enokizono: "Evaluation of the Bending Fatigue of Stainless Steel Using the Residual Magnetization Method"Journal of The Magnetics Society of Japan. 25,4-2. 1075-1078 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Tsuchida, Y.Yoshitomi, M.Enokizono: "Chaotic Behavior of Rotational Barkhausen Noise"Journal of The Magnetics Society of Japan. 25,4-2. 1099-1102 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomasz Chady, Masato Enokizono, Takashi Todaka, Yuji Tsuchida, Ryszard Sikora: "Evaluation of the JSAEM Round Robin Test Samples Using Multi-frequency Excitation and Spectrogram Method"Studies in Applied Electromagnetics and Mechanics, Vol.21, Electromagnetic Nondestructive Evaluation. V. 171-178 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Mohachiro Oka, Masato Enokizono: "Eddy Current Testing Using Rotational Magnetic Flux Type Probe for SG Tubes"Studies in Applied Electromagnetics and Mechanic. 21. 234-241 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomasz Chady, Masato Enokizono: "Multi-frequency exciting and spectrogram-based ECT method"Journal of Magnetism and Magnetic Materials. 215-216. 700-703 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Enokizono, T.Todaka, Y.Yoshitomi: "Chaotic phenomena of rotational Barkhausen noise"Journal of Magnetism and Magnetic Materials. 215-216. 43-45 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Tsuchida, M.Enokizono: "Stress Evaluation by Chaotic Characteristic of Barkhausen Noise"Review of Quantitative Evaluation. 22. 1545-1551 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Kai, Y.Tsuchida, M.Enokizono S.Nagata: "Evaluation of Case Hardening by MFES Method"Studies in Applied Electromagnetics and Mechanics 24, Electromagnetic Nondestructive Evaluation. VIII. 153-158 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Tsuchida, T.Ando, M.Enokizono: "Stress Evaluation of Steel Plate by Chaos of Barkhausen Noise"IEEE Transactions on Magnetics. Vol.38, No.5. 3210-3212 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oka, T.Yakushiji, Y.Tsuchida, M.Enokizono: "Evaluation of Bending Fatigue in Austenitic Stainless Steel Plates Using the FG Magnetic Sensor"JSAEM Studies in Applied Electromagnetics and Mechanics. Vol.12. 49-52 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Todaka, M.Oka, M.Enokizono, R.Sikora, M.Komorowski, S.Gratkowski: "Finite Element Analysis of Support Problems in Non-Destructive Evaluation"JSAEM Studies in Applied Electromagnetics and Mechanics. Vol.12. 92-95 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] R.Sikora, M.Komorowski, S.Gratkowski, M.Enokizono, T.Chady: "Mathematical Model of a Magnetoresistive Transducer for Eddy Current Nondestructive Testing of Materials"International Journal of Applied Electromagnetics and Mechanics, IOS Press, Part III. Vol.14. 21-25 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Chady, M.Enokizono, R.Sikora, K.Takeuchi, T.Kinoshita: "Eddy Current Testing of Concrete Structures"International Journal of Applied Electromagnetics and Mechanics, IOS Press, Part III. Vol.14. 33-37 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomasz Chady, Masato Enokizono: "Neural Network Models of Eddy Current Sensor"Journal of The Magnetics Society of Japan. Vol.25, No.4-2. 987-990 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Oka, T.Yakushiji, Y.Tsuchida, M.Enokizono: "Evaluation of the Bending Fatigue of Stainless Steel Using the Residual Magnetization Method"Journal of The Magnetics Society of Japan. Vol.25, No.4-2. 1075-1078 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Tsuchida, Y.Yoshitomi, M.Enokizono: "Chaotic Behavior of Rotational Barkhausen Noise"Journal of The Magnetics Society of Japan. Vol.25, No.4-2. 1099-1102 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomasz Chady, Masato Enokizono, Takashi Todaka, Yuji Tsuchida, Ryszard Sikora: "Evaluation of the JSAEM Round Robin Test Samples Using Multi-frequency Excitation and Spectrogram Method"Studies in Applied Electromagnetics and Mechanics, Electromagnetic Nondestructive Evaluation (V). Vol.21. 171-178 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mohachiro Oka, Masato Enokizono: "Eddy Current Testing Using Rotational Magnetic Flux Type Probe for SG Tubes"Studies in Applied Electromagnetics and Mechanics, Electromagnetic Nondestructive Evaluation (V). Vol.21. 234-241 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomasz Chady, Masato Enokizono: "Multi-frequency exciting and spectrogram-based ECT method"Journal of Magnetism and Magnetic Materials. Vol.215-216. 700-703 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Enokizono, T.Todaka, Y.Yoshitomi: "Chaotic phenomena of rotational Barkhausen noise"Journal of Magnetism and Magnetic Materials. Vol.215-216. 43-45 (2000)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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