電磁誘導を利用した塗装上からの溶接線の検知 Detecting Weld Line of Steel Material through Anticorrosion Paint by an Electromagnetic Induction Probe

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The authors have developed a new method for detecting position and direction in weld zone of steel structures such as oil-storage tanks and bridges without removing their anticorrosion paint. The method uses a special eddy current probe and detects the position and direction by utilizing the difference of electromagnetic characteristics between the base material and the heat affected zone. The probe comprises two large tangential exciting coils wound orthogonally each other and a small pancake detecting coil. The exciting coils induce uniform eddy current rotating its direction synchronizing to the alternating exciting current. The signal amplitude from the probe provides information on its position in the weld zone and the signal phase indicates the direction of the probe. Thus the probe generates the weld signal to effectively follow the weld line in steel structures. The experimental results have shown that the proposed method is promising because the probe provides clear weld signal with little noise and the change of the probe lift-off from the material causes little variation in the signal.

収録刊行物

  • 電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society

    電気学会論文誌. A, 基礎・材料・共通部門誌 = The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society 124(9), 797-802, 2004-09-01

    一般社団法人 電気学会

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各種コード

  • NII論文ID(NAID)
    10013539113
  • NII書誌ID(NCID)
    AN10136312
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854205
  • NDL 記事登録ID
    7076880
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-793
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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