玻璃纤维复合材料缺陷的太赫兹光谱检测实验分析 - 红外技术.PDF

第37 卷 第9 期 红 外 技 术 Vol.37 No.9 2015 年9 月 Infrared Technology Sep. 2015 玻璃纤维复合材料缺陷的太赫兹光谱检测实验分析 1 2 1 1 2 郭小弟 ，王 强 ，谷小红 ，陈锡爱 ，范昕炜 （1.中国计量学院 机电工程学院，杭州 310018 ；2. 中国计量学院 质量与安全工程学院，杭州 310018 ） 摘要：复合材料压力容器缺陷无损检测成为目前的研究热点。基于太赫兹技术（透射式 THz-TDS 系 统和BWO 成像系统）在室温下对玻璃纤维样品进行无损检测，获得了分层缺陷样品在0.2～1.8 THz 范围内的折射率谱和吸收谱、夹杂金属和热损伤缺陷样品的成像数据。结果表明，太赫兹技术对玻璃 纤维分层缺陷、夹杂金属和热损伤缺陷检测效果明显，适用于局部检测对整体性能的判断。 关键词：THz-TDS；BWO 成像；玻璃纤维；无损检测 中图分类号：TB322 文献标识码：A 文章编号：1001-8891(2015)09-0764-05 Analysis of Terahertz Spectroscopic Inspection Experiment for Glass Fiber Composite Material Defects 1 2 1 1 2 GUO Xiao-Di ，WANG Qiang ，GU Xiao-Hong ，CHEN Xi-Ai ，FAN Xin-Wei (1.China Jiliang University, College of Mechanical Electrical Engineering, Hangzhou 310018, China； 2.China Jiliang University, College of Quality Safety Engineering, Hangzhou 310018, China) Abstract ：Defect nondestructive test of composite pressure vessel has become a hot research field at present. The glass fiber winding reinforced composite material was detected nondestructively at room temperature by the THz technology (transmission THz-TDS system and BWO imaging system). Measurement of the sample gained the absorption coefficient and refractive index of delamination defect from 0.2THz to 1.8THz and imaging data including metal and thermal damage. The results show that THz technology has obvious defect inspection effect on the samples of glass fiber lamination, including metal and thermal damage. The method can be applied to determine the overall performance of the loc