期刊
OPTICAL FIBER TECHNOLOGY
卷 18, 期 1, 页码 7-13出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.yofte.2011.09.004
关键词
Fiber Bragg Grating (FBG); Embedding; Smart metal structure; Thermal and strain sensing character; Ultrasonic welding
资金
- China Scholarship Council
- State Key Laboratory of Advanced Welding Production Technology
- National Natural Science Foundation of China [50905082, 61067003]
- Ministry of Education of China [20103601120005]
- [2010DQ01000]
Fiber Bragg Gratings (FBGs) were embedded in metal foil using ultrasonic welding processes. Ultrasonic welding embedding processes, cross-sections of welded samples, the form change and wavelength shift of the Bragg peak during the processes, as well as the sensing characters of embedded FBGs were investigated. To understand the effects of metal foil properties on fiber embedding, optical fibers were embedded in similar and dissimilar metal foil samples. In order to study the effects of protective coating properties on the embedding processes, bare fibers, chemical nickel-plated fibers and chemical-electro nickel-plated fibers were compared in the ultrasonic welding process. Results indicate that only chemical-electro plated fibers and FBGs were successfully embedded in aluminum foils due to good protection and an appropriate matrix metal. Examination of the form change and wavelength shift shows that the FBGs are preserved well after the plating and ultrasonic welding processes. Thermal sensing results show that temperature sensitivity of the FBG was enhanced after chemical-electroplating and further enhanced after embedding in aluminum, which resulted from different thermal expansion coefficients of the SiO2, aluminum and the nickel layer. Strain sensing results show (i) the embedded FBG remains in good condition when a cyclic tensile load (0-40 N) is applied; (ii) the relationship between wavelength and the applied load shows a linear trend. (C) 2011 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据