| 埋入光纤Mach-Zehnder干涉仪检测复合材料梁的分层 |
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| 引用本文： | 江毅,许颖. 埋入光纤Mach-Zehnder干涉仪检测复合材料梁的分层[J]. 复合材料学报, 2004, 21(1): 129-133 |
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| 作者姓名： | 江毅 许颖 |
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| 作者单位： | 北京理工大学,光电工程系,北京,100081;香港科技大学,土木工程系,九龙,香港 |
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| 基金项目： | 国家自然科学基金项目(60277015) |
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| 摘 要： | 将光纤Mach-Zehnder干涉仪的传感臂埋入到复合材料梁的中性层来检测梁的分层。不论梁是连续支撑还是简单支撑,均取得了很好的实验结果。通过用榔头连续下压梁,由光纤干涉仪可以得到一条输出曲线,从这条曲线就可以准确判断梁内部是否存在分层,以及分层的位置。
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| 关 键 词： | 复合材料 分层 光纤传感器 Mach-Zehnder干涉仪 |
| 文章编号： | 1000-3851(2004)01-0129-05 |
| 收稿时间： | 2002-10-09 |
| 修稿时间： | 2003-03-27 |
EMBEDDED FIBER OPTICAL MACH-ZEHNDER INTERFEROMETER FOR THE DETECTION OF DELAMINATION IN COMPOSITES |
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| JIANG Yi,XU Ying,Christopher K Y Leung. EMBEDDED FIBER OPTICAL MACH-ZEHNDER INTERFEROMETER FOR THE DETECTION OF DELAMINATION IN COMPOSITES[J]. Acta Materiae Compositae Sinica, 2004, 21(1): 129-133 |
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| Authors: | JIANG Yi XU Ying Christopher K Y Leung |
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| Affiliation: | 1. Departnent of Photo-Electronics Engineering,Beijing Institute of Technology, Beijing 100081,China;2. Department of Civil Engineering, Hongkong University of Science and Technology, Kowloon, HongKong,China |
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| Abstract: | The sensing arm of a fiber optical Mach-Zehnder Interferometer is embedded into the middle of composite beams to detect the delamination in the beams. Good results are obtained showing the delaminations can be detected easily whether the beams are simply supported or continuously supported. By pressing the beam continuously using a hammer, the output curve can be obtained from the fiber optical interferometer. One can judge if there exists delamination, and where the delamination is from the curve exactly. |
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| Keywords: | composite delamination fiber optical sensor Mach-Zehnder interferometer |
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