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《Infrared Technology》 2015-09
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Analysis of Terahertz Spectroscopic Inspection Experiment for Glass Fiber Composite Material Defects

GUO Xiao-Di;WANG Qiang;GU Xiao-Hong;CHEN Xi-Ai;FAN Xin-Wei;China Jiliang University, College of Mechanical & Electrical Engineering;China Jiliang University, College of Quality & Safety Engineering;  
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 local inspection.
【Fund】: 浙江省自然科学基金项目 编号:LY14E040002 LQ14F05003;; 质检公益性行业科研专项资助 编号:201410025
【CateGory Index】: TQ171.777.77
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