Development of a fiber optic health monitoring system for aerospace applications |
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Authors: | V. Striano V. Latini G. Coppola I. Rendina |
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Affiliation: | (1) DIMET, Università “Mediterranea” di Reggio Calabria, Reggio Calabria, Italy;(2) CNR-IMM sez. Napoli, Via Pietro Castellino111, 80131 Napoli, Italy;(3) Carlo Gavazzi Space, Via Tiengo snc, 82100 Benevento, Italy |
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Abstract: | This paper describes our research activity involved in the identification, development and test of a prototype SHM system constituted by optical sensing nodes to measure both temperature and strain on ultra high temperature ceramics (UHTC) materials up to 1000 ℃. Commercially available optic devices can operate up to 550 ℃. To raise temperature limit up to 1000 ℃, custom devices, mainly under development for scientific applications, have been identified. A prototype SHM system has been developed adopting a FBG sensor for temperature measurement and an EFPI sensor in sapphire fiber for strain measurement. The preliminary findings from thermo-mechanical tests indicate that former SHM system is capable of accurately measuring strain at elevated temperatures on UHTC materials. |
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Keywords: | TN253 |
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