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Proceedings Paper

Application of fiber Bragg grating sensors in light aircraft: ground and flight test
Author(s): Jin-Hyuk Kim; Pratik Shrestha; Yurim Park; Chun-Gon Kim
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Paper Abstract

Fiber optic sensors are being spotlighted as the means to monitoring aircraft conditions due to their excellent characteristics. This paper presents an affordable structural health monitoring system based on a fiber Bragg grating sensor (FBG) for application in light aircrafts. A total of 24 FBG sensors were installed in the main wing of the test bed aircraft. In the ground test, the intactness of the installed sensors and device operability were confirmed. During the flight test, the strain and temperature responses of the wing structure were measured by the on-board low-speed FBG interrogator. The measured strains were successfully converted into the flight load history through the load calibration coefficient obtained from the ground calibration test.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91578V (2 June 2014); doi: 10.1117/12.2053641
Show Author Affiliations
Jin-Hyuk Kim, KAIST (Korea, Republic of)
Pratik Shrestha, KAIST (Korea, Republic of)
Yurim Park, KAIST (Korea, Republic of)
Chun-Gon Kim, KAIST (Korea, Republic of)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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