声发射技术是借助声发射检测系统对声发射源的性质进行评价的技术,广泛应用于材料或结构稳定性评价和动态监测.综述了材料或结构中声发射信号的产生机理,阐述了声发射信号处理的重要性,概括了参数分析、人工神经网络、小波分析等方法处理声发射信号的原理,简单介绍了几种其他现代声发射信号分析与处理方法,分析了现有声发射信号分析与处理技术已不能满足现代工业快速发展的原因,提出了综合运用现有信号分析与处理技术,发展精确、简单易操作的信号分析与处理理论来解决这一难题.
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