Nondestructive Evaluation of Thickness Variations for Elastic Plates by High-Overtone Bulk Acoustic Resonance

被引：2
|
作者：
Zhang, Hui [1 ]
Wang, Yu-ran [1 ]
Zhang, Shu-yi [1 ,2 ,3 ]
Fan, Li [1 ]
机构：
[1] Nanjing Univ, Lab Modern Acoust, Inst Acoust, Nanjing, Jiangsu, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China
[3] Nanjing Univ, Dept Elect Sci & Engn, Nanjing, Jiangsu, Peoples R China
来源：
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2012年 / 59卷 / 12期
基金：
中国国家自然科学基金;
关键词：
THIN; RESONATORS; VELOCITY;
D O I：
10.1109/TUFFC.2012.2512
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Based on the resonant frequency spectra of a high-overtone bulk acoustic resonance, a model for nondestructive evaluation of the elastic plate thickness is given. The simulations demonstrate that the thickness deviations of the elastic plates are sensitive to two parameters: the parallel resonance frequencies and the spacing of parallel resonance frequencies (SPRF). At the normal and transition regions of the SPRF curves, the parallel resonance frequencies periodically linearly decrease with the increase of thickness deviations, which is applicable for evaluating the thickness deviations of the plates.
引用
收藏
页码：2709 / 2715
页数：7
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