Application of fiber Bragg grating sensors in light aircraft: ground and flight test

Jin-Hyuk Kim; Pratik Shrestha; Yurim Park; Chun-Gon Kim

doi:10.1117/12.2053641

2 June 2014 Application of fiber Bragg grating sensors in light aircraft: ground and flight test

Jin-Hyuk Kim, Pratik Shrestha, Yurim Park, Chun-Gon Kim

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91578V (2014) https://doi.org/10.1117/12.2053641
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

Citation Download Citation

Jin-Hyuk Kim, Pratik Shrestha, Yurim Park, and Chun-Gon Kim "Application of fiber Bragg grating sensors in light aircraft: ground and flight test", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91578V (2 June 2014); https://doi.org/10.1117/12.2053641

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