Print Email Facebook Twitter Usage of fiber Bragg grating sensors in low earth orbit environment Title Usage of fiber Bragg grating sensors in low earth orbit environment Author Park, S.O. Moon, J.B. Lee, Y.G. Kim, C.G. Bhowmik, S. Faculty Aerospace Engineering Department Aerospace Materials Date 2008-05-07 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. Subject compositeslow earth orbitfiber Bragg grating To reference this document use: http://resolver.tudelft.nl/uuid:e4fcc516-4c9f-40f6-a3d6-0b14442b42a2 Publisher SPIE ISSN 0277-786X Source Proceedings of SPIE, 2008 vol. 6932 Part of collection Institutional Repository Document type conference paper Rights (c)2008 Park, S.O., Moon, J.B., Lee, Y.G., Kim, C.G., Bhowmik, S. Files PDF Usage.Park.pdf 1.06 MB Close viewer /islandora/object/uuid:e4fcc516-4c9f-40f6-a3d6-0b14442b42a2/datastream/OBJ/view