Aircraft structural health monitoring using on-board BOCDA system

Takashi Yari; Kanehiro Nagai; Masahito Ishioka; Kazuo Hotate; Yasuhiro Koshioka

doi:10.1117/12.775956

7 April 2008 Aircraft structural health monitoring using on-board BOCDA system

Takashi Yari, Kanehiro Nagai, Masahito Ishioka, Kazuo Hotate, Yasuhiro Koshioka

Proceedings Volume 6933, Smart Sensor Phenomena, Technology, Networks, and Systems 2008; 69330S (2008) https://doi.org/10.1117/12.775956
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

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.

Citation Download Citation

Takashi Yari, Kanehiro Nagai, Masahito Ishioka, Kazuo Hotate, and Yasuhiro Koshioka "Aircraft structural health monitoring using on-board BOCDA system", Proc. SPIE 6933, Smart Sensor Phenomena, Technology, Networks, and Systems 2008, 69330S (7 April 2008); https://doi.org/10.1117/12.775956

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