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Development of a fiber optic health monitoring system for aerospace applications
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作者 V.Striano V.Latini +1 位作者 G.Coppola I.Rendina 《Optoelectronics Letters》 EI 2007年第4期260-263,共4页
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 tempe... 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. 展开更多
关键词 健康检测系统 光学纤维 太空 应用
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