复合材料干耦合声学检测技术的发展与应用

Development and Application of Dry-Coupled Acoustic Detection Technology for Composites

摘要: 针对复合材料干耦合检测问题，综合分析了干压力耦合法、声阻法、局部敲击法、空气耦合超声检测法和定距发送接收法五种声学干耦合检测技术。分别阐述了它们的基本原理，分析了各种技术的特点、局限和适用对象，最后对复合材料干耦合技术发展趋势进行了展望。

Abstract: This paper comprehensively analyzed the following five dry coupling acoustic detection technologies for composites, the dry pressure coupling, the acoustic impedance, local percussion method, air coupled ultrasonic testing method and the pitch catch. Descriptions were made on their basic principle, their technical features, limitations and application objects. The development trends of composite dry coupling technology were prospected in the final part of the paper.