scholarly journals Tuning of Surface-Acoustic-Wave Dispersion via Magnetically Modulated Contact Resonances

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Antonio Palermo ◽  
Yifan Wang ◽  
Paolo Celli ◽  
Chiara Daraio
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Wave Dispersion

Evaluation of film adhesion to substrates by means of surface acoustic wave dispersion

2010 ◽  
Vol 518 (20) ◽  
pp. 5786-5795 ◽  
Author(s):  
Jikai Du ◽  
Bernhard R. Tittmann ◽  
Hyeong Sick Ju
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Wave Dispersion ◽  
Film Adhesion

Study on the Influence of Roughness on the Detection for Mechanical Characteristics of the Machined Surface by Surface Acoustic Wave Dispersion Theory

2016 ◽  
Vol 693 ◽  
pp. 1447-1452
Author(s):  
Jing Lei Xu ◽  
Bin Lin ◽  
Ya Xu Wei
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Waves ◽  
Mechanical Characteristics ◽  
Fractal Theory ◽  
Surface Acoustic Waves ◽  
Wave Dispersion ◽  
Acoustic Wave Propagation ◽  
Machined Surface

The surface acoustic wave (SAW) technique is a precise and nondestructive method to detect the mechanical characteristics of the precision-machined surface. The paper is concerned with the effect of the roughness of the machined surface on the dispersion of surface acoustic waves propagating in the precision-machined surface which indicates mechanical characteristics of the machined surface. The finite element method (FEM) is employed by establishing a series of models with different roughness Ra value to analyze influences from different roughness Ra value on surface acoustic wave dispersion. The models are established by applying a combined method based on fractal theory and wavelet analysis. The simulation results showed that the roughness of machined surface will cause the dispersion of surface acoustic wave propagation, the effect varies with the different roughness Ra values. A critical Ra value influencing on the surface acoustic wave propagation exists. Accordingly, that the factor of roughness should be considered in advance or not, the situation can be determined through studying and determining the critical roughness Ra value above mentioned. Consequently, the study has the important meaning regarding the detection for mechanical characteristics of the machined surface.

STUDY OF DEFECTS IN a-Ge AND a-GeHxUSING SURFACE ACOUSTIC WAVE TECHNIQUE

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-365-C4-368
Author(s):  
K. L. Bhatia ◽  
M.v. Haumeder ◽  
S. Hunklinger
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Wave Technique
Sign in / Sign up

Export Citation Format

Share Document