Title :
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
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;
Conference_Titel :
SICE Annual Conference, 2008
Conference_Location :
Tokyo
Print_ISBN :
978-4-907764-30-2
Electronic_ISBN :
978-4-907764-29-6
DOI :
10.1109/SICE.2008.4655025
