OS2006 水中用干渉計型光ファイバAEセンサの周波数特性評価

• 木村 大樹

  電気通信大学大学院

• 結城 宏信

  電気通信大学

書誌事項

タイトル別名

• OS2006 Frequency Characteristics of Interferometer Type Optical Fiber AE Sensor in Underwater Measurement

抄録

Frequency characteristic of the optical fiber acoustic emission (AE) sensor integrating both of the sensing and the reference fibers into the sensing head for measurement in water was investigated. The characteristics of the sensor was evaluated by comparing the each waveforms detected by the optical fiber sensor and the PZT sensor having the known response function. It was demonstrated that no significant resonance is appeared in the range of 200 to 1200 kHz from the results of the experiment using the artificial AE source caused by pencil lead breaks. Dependence of the incidence direction of AE waves on the characteristics of the sensor was also discussed based on the experimental results using a cylindrical vessel. It was found that more flat characteristics is shown in the case of propagating AE waves toward the longitudinal direction of the sensor.

収録刊行物

• M&M材料力学カンファレンス

  M&M材料力学カンファレンス 2012 (0), _OS2006-1_-_OS2006-3_, 2012

  一般社団法人 日本機械学会

キーワード

• Acoustic Emission
• Optical Fiber Sensor
• Mach-Zehnder Interferometer
• Underwater Measurement
• Frequency Characteristics

詳細情報

• CRID: 1390001205870735744
• NII論文ID: 110009937529
• DOI: 10.1299/jsmemm.2012._os2006-1_
• ISSN: 24242845
• Web Site: https://www.jstage.jst.go.jp/article/jsmemm/2012/0/2012__OS2006-1_/_pdf
• 本文言語コード: ja
• データソース種別:
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