scholarly journals Calculation of Bulk Acoustic Wave Propagation Velocities in Trigonal Piezoelectric Smart Materials

2014 ◽  
Vol 8 (4) ◽  
pp. 1625-1632 ◽  
Author(s):  
Abo-el-nour N. Abd-alla ◽  
Nadia A. Askar
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Smart Materials ◽  
Bulk Acoustic Wave ◽  
Acoustic Wave Propagation ◽  
Propagation Velocities

The mathematical modeling for bulk acoustic wave propagation velocities in transversely isotropic piezoelectric materials

2015 ◽  
Vol 22 (4) ◽  
pp. 823-836 ◽  
Author(s):  
Abo-el-nour N Abd-alladan ◽  
Abdelmonam M Hamdan ◽  
Adel A Almarashi ◽  
Antonio Battista
Keyword(s):  
Acoustic Wave ◽  
Acoustic Waves ◽  
Piezoelectric Effect ◽  
Piezoelectric Materials ◽  
Transversely Isotropic ◽  
Bulk Acoustic Wave ◽  
Acoustic Wave Propagation ◽  
Wave Velocities ◽  
Saw Devices ◽  
Propagation Velocities

The objective of this paper is to study the bulk acoustic wave (BAW) propagation velocities in transversely isotropic piezoelectric materials, aluminum nitride, zinc oxide, cadmium sulfide and cadmium selenide. The bulk acoustic wave velocities are computed for each direction by solving the Christoffel’s equation based on the theory of acoustic waves in anisotropic solids exhibiting piezoelectricity. These values are calculated numerically and implemented on a computer by Bisection Method Iterations Technique (BMIT). The modification of the bulk acoustic wave velocities caused by the piezoelectric effect are graphically compared with the velocities in the corresponding non-piezoelectric materials. The results obtained in this study can be applied to signal processing, sound systems and wireless communication in addition to the improvement of surface acoustic wave (SAW) devices and military defense equipment.

Evaluation of acoustic wave propagation velocities in the ocular lens and vitreous tissues of pigs, dogs, and rabbits

2006 ◽  
Vol 67 (2) ◽  
pp. 288-295 ◽  
Author(s):  
Christiane Görig ◽  
Tomy Varghese ◽  
Timothy Stiles ◽  
Jan van den Broek ◽  
James A. Zagzebski ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Ocular Lens ◽  
Acoustic Wave Propagation ◽  
Propagation Velocities

scholarly journals The Sensitive Element of Acoustic Sensor on Circular Polarized Waves: From Theoretical Considerations towards Perspective Rotation Rate Sensors Design

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 32
Author(s):  
Michail Shevelko ◽  
Andrey Lutovinov ◽  
Aleksandr Peregudov ◽  
Ekaterina Popkova ◽  
Yasemin Durukan ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Rotation Rate ◽  
Acoustic Waves ◽  
Experimental Studies ◽  
Bulk Acoustic Wave ◽  
Acoustic Wave Propagation ◽  
Direct Excitation ◽  
Numerical Predictions ◽  
Polarized Waves

In this paper, the perspectives of using the features of acoustic wave propagation to design rotation rate sensors (RRS) are discussed. The possibility of developing the solid-state sensitive elements (SE) of RRS on acoustic waves of circular polarization is shown. The theoretical basis of bulk acoustic wave propagation under rotation is given. The direct excitation of circularly polarized acoustic wave (CPAW) is considered, the design of the CPAW emitting transducer is offered. The results of experimental studies that indicated the circular nature of the particle motions in the radiated wave are discussed. The principally new concept of the RRS SE design on CPAW, being able to operate under high vibration and acceleration, is proposed. The experimental results revealed a high correlation with theoretical and numerical predictions and confirmed RRS on CPAW operability.

Acoustic wave propagation in two dimensional sheared ducted flows

1997 ◽  
Author(s):  
E. Longatte ◽  
P. Lafon ◽  
S. Candel ◽  
E. Longatte ◽  
P. Lafon ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Two Dimensional ◽  
Acoustic Wave Propagation

Investigations on the influence CuO doping on elastic properties of Li2SO4–MgO–P2O5 glass system by means of acoustic wave propagation

2021 ◽  
Vol 330 ◽  
pp. 114270
Author(s):  
A. Venkata Sekhar ◽  
A.V. Kityk ◽  
J. Jedryka ◽  
P. Rakus ◽  
A. Wojciechowski ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Elastic Properties ◽  
Glass System ◽  
Acoustic Wave Propagation

Influence of NiO doping on elastic properties of Li2SO4-MgO-P2O5 glass system-Investigation by means of acoustic wave propagation

2021 ◽  
Vol 127 (5) ◽  
Author(s):  
A. Venkata Sekhar ◽  
A. Siva Sesha Reddy ◽  
A.V. Kityk ◽  
J. Jedryka ◽  
P. Rakus ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Elastic Properties ◽  
Glass System ◽  
Acoustic Wave Propagation
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