一种定征固体板表面性质的兰姆波方法  

Characterization of surfaces of solid plates using a Lamb wave approach

作　　者：邓明晰 

机构地区：[1]后勤工程学院,重庆400016

出　　处：《应用声学》2006年第2期109-115,共7页Journal of Applied Acoustics

基　　金：国家自然科学基金项目(10474139)(部分支持)

摘　　要：基于Ritec-SNAP系统建立了兰姆波实验系统,分析了用兰姆波幅频特性定征固体板表面性质的可行性。实验结果表明,用高阶、多模兰姆波的幅频特性可准确定征固体板表面性质的变化。On the basis of Ritec-Snap measurement system, the experimental set-up using a Lamb wave approach has been established. This paper analyzes the feasibility of using the amplitude-frequency characteristics of Lamb waves to characterize the surfaces of solid plates. The experimental results show that the amplitude-frequency characteristics of high-order, multimode Lamb waves can be used to effectively characterize the changes in properties of surfaces of solid plates.

关 键 词：固体板 兰姆波实验系统 幅频特性 Ritec-SNAP系统 表面性质 

分 类 号：TS262.3[轻工技术与工程—发酵工程] O643.36[轻工技术与工程—食品科学与工程]