Nondestructive evaluation of thickness variations for elastic plates by high-overtone bulk acoustic resonance

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 f...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2012-12, Vol.59 (12), p.2709-2715
Main Authors: Zhang, Hui, Wang, Yu-ran, Zhang, Shu-yi, Fan, Li
Format: Article
Language:English
Subjects:
Acoustic measurements
Acoustic resonance
Acoustics
Computer simulation
Cross-disciplinary physics: materials science
rheology
Deviation
Elastic plates
Electrodes
Exact sciences and technology
Ferroelectric materials
Frequency measurement
Manganese
Materials science
Materials testing
Nondestructive testing
Physics
Resonant frequencies
Resonant frequency
Spectra
Thickness measurement
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Summary: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.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2012.2512