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Proceedings Paper

Usage of fiber Bragg grating sensors in low earth orbit environment
Author(s): Sang-Oh Park; Jin-Bum Moon; Yoen-Gwan Lee; Chun-Gon Kim; Shantanu Bhowmik
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Paper Abstract

It is widely known that materials exposed to the severe low earth orbit (LEO) environment undergo degradations. For the evaluation of fiber Bragg grating (FBG) sensors in the LEO environment, the reflective spectrum change and the Bragg wavelength shift of FBG sensor were measured during aging cycles simulating the LEO environment. The LEO environment was simulated by high vacuum (~10-5 Torr), ultraviolet (UV) radiation (<200nm wavelength), temperature cycling (-30°C~100°C), and atomic oxygen atmosphere (AO flux of 9.12×1014 atoms/cm2/s and kinetic energy of ~0.04 eV). FBG sensor arrays were embedded into the graphite/epoxy composite material. Through the aging cycles simulated for the LEO environment, the change in the reflective spectrums and the Bragg wavelengths from FBG sensors were investigated.

Paper Details

Date Published: 8 April 2008
PDF: 8 pages
Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69321T (8 April 2008); doi: 10.1117/12.776631
Show Author Affiliations
Sang-Oh Park, KAIST (South Korea)
Jin-Bum Moon, KAIST (South Korea)
Yoen-Gwan Lee, KAIST (South Korea)
Chun-Gon Kim, KAIST (South Korea)
Shantanu Bhowmik, Delft Univ. of Technology (Netherlands)


Published in SPIE Proceedings Vol. 6932:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
Masayoshi Tomizuka, Editor(s)

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