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Proceedings Paper

Aircraft structural health monitoring using on-board BOCDA system
Author(s): Takashi Yari; Kanehiro Nagai; Masahito Ishioka; Kazuo Hotate; Yasuhiro Koshioka
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Paper Abstract

We developed the on-board BOCDA system for airplane and verified the flight environmental stability and durability through environmental test. The on-board BOCDA system adopted the polarization diversity technique and temporal gating technique to improve robustness of the BOCDA system. We successfully measured distribution of fiber Brillouin gain spectrum over 500m measurement range with 50mm spatial resolution, 60Hz sampling rate and ±13μ strain accuracy. Furthermore, we considered flight test to verify the validity of the BOCDA system. From these results, it was confirmed that BOCDA system has potential to be applied to an aircraft structure health monitoring system.

Paper Details

Date Published: 7 April 2008
PDF: 7 pages
Proc. SPIE 6933, Smart Sensor Phenomena, Technology, Networks, and Systems 2008, 69330S (7 April 2008); doi: 10.1117/12.775956
Show Author Affiliations
Takashi Yari, Mitsubishi Heavy Industries, Ltd. (Japan)
Kanehiro Nagai, Mitsubishi Heavy Industries, Ltd. (Japan)
Masahito Ishioka, Mitsubishi Heavy Industries, Ltd. (Japan)
Kazuo Hotate, The Univ.of Tokyo (Japan)
Yasuhiro Koshioka, R&D Institute of Metals and Composites for Future Industries (Japan)

Published in SPIE Proceedings Vol. 6933:
Smart Sensor Phenomena, Technology, Networks, and Systems 2008
Wolfgang Ecke; Kara J. Peters; Norbert G. Meyendorf, Editor(s)

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