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基于锁相红外热成像理论的复合材料网格加筋结构的无损检测

, PP. 199-205

Keywords: 复合材料,网格结构,无损检测,红外热像法,锁相热像法

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Abstract:

基于锁相红外热成像理论,对复合材料网格加筋结构的几类典型缺陷进行无损检测,采用法国Cedip公司开发的锁相红外热成像系统对检测结果进行分析。讨论了加载频率、输出电压偏移量对检测的影响。结果表明,相位图比幅值图含有更多的缺陷信息。不同的加载频率会产生不同的检测结果,选择恰当的加载频率是检测的关键;增加输出电压偏移量有利于检测。该方法可用于对复合材料未知缺陷的检测。

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