FBGセンサの Lamb 波伝搬に対する応答とアクティブセンシングへの応用 Response of FBG Sensors to Lamb Wave Propagation and its Application to Active Sensing

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著者

    • 津田 浩 TSUDA Hiroshi
    • 産業技術総合研究所 計測フロンティア研究部門 Research Institute of Instrumentation Frontier National Institute of Advanced Industrial Science & Technology
    • 高坪 純治 TAKATSUBO Junji
    • 産業技術総合研究所 計測フロンティア研究部門 Research Institute of Instrumentation Frontier National Institute of Advanced Industrial Science & Technology
    • 遠山 暢之 [他] TOYAMA Nobuyuki
    • 産業技術総合研究所 計測フロンティア研究部門 Research Institute of Instrumentation Frontier National Institute of Advanced Industrial Science & Technology
    • 卜部 啓 URABE Kei
    • 産業技術総合研究所 計測フロンティア研究部門 Research Institute of Instrumentation Frontier National Institute of Advanced Industrial Science & Technology

抄録

An ultrasonic sensing system using fiber Bragg gratings (FBGs) was constructed. The system utilizes wavelength-optical intensity modulation technique and includes a broadband light source, FBGs for sensing and filtering, as well as a photodetector. Feasibility of active sensing by the system was examined. Ultrasonic Lamb wave generated by an ultrasonic transducer was propagated in a cross-ply CFRP with impact damage. Response of FBG sensor to Lamb wave propagated through a damaged area was compared with the reference response in an intact area. In this experiment, the ultrasonic transducer was driven by four kinds of signals to determine the optimal transducer drive signal for impact damage detection. Response to Lamb wave propagated through the damaged area had narrower frequency bandwidth and lower frequency characteristics than response in the intact area. A spike pulse proved to be optimal for the transducer drive signal in active sensing. The experiments demonstrated that the FBG ultrasonic sensing system was effective to detect impact damage of CFRP.

収録刊行物

  • 非破壊検査 = JOURNAL OF THE JAPANESE SOCIETY FOR NON-DESTRUCTIVE INSPECTION

    非破壊検査 = JOURNAL OF THE JAPANESE SOCIETY FOR NON-DESTRUCTIVE INSPECTION 53(7), 419-425, 2004-07-01

    一般社団法人 日本非破壊検査協会

参考文献:  19件中 1-19件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10013267171
  • NII書誌ID(NCID)
    AN00208370
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03675866
  • NDL 記事登録ID
    7021898
  • NDL 雑誌分類
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL 請求記号
    Z14-41
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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