Enhancement of BOCDA system for aircraft health monitoring

Author

Kumagai, Yoshihiro ; Matsuura, Satoshi ; Adachi, Shoji ; Hotate, Kazuo

Author_Institution

Commun. & Meas. Bus. H.Q. Yokogawa Electr. Corp., Tokyo

fYear

2008

fDate

20-22 Aug. 2008

Firstpage

2184

Lastpage

2187

Abstract

We developed a prototype on-board BOCDA system for aircraft structural health monitoring. The temporal gating scheme and the polarization diversity technique were introduced to enhance the robustness of the BOCDA system. We measured the distributed Brillouin gain spectrum over a 500 m measurement range with 30 mm spatial resolution, 70 Hz sampling rate, and plusmn13 mu strain accuracy. As a result, we confirmed that the BOCDA system could be applied to aircraft structural health monitoring.

Keywords

aircraft maintenance; avionics; condition monitoring; aircraft health monitoring; distributed Brillouin gain spectrum; onboard BOCDA system; polarization diversity; spatial resolution; structural health monitoring; temporal gating scheme; Aircraft; Brillouin scattering; Frequency modulation; Gain measurement; Monitoring; Optical fibers; Optical pulses; Probes; Spatial resolution; Strain measurement; BOCDA; Brillouin scattering; distributed sensor; distributed strain; strain measurement; structural health monitoring;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE Annual Conference, 2008

Conference_Location

Tokyo

Print_ISBN

978-4-907764-30-2

Electronic_ISBN

978-4-907764-29-6

Type

conf

DOI

10.1109/SICE.2008.4655025

Filename

4655025