Title :
A new approach to the analysis of piezoelectric cladded acoustic fibers
Author :
Uçer, Mürvet ; Akçakaya, Ergül
Author_Institution :
Fac. of Electr.-Electron. Eng., Istanbul Tech. Univ., Turkey
Abstract :
In this paper, a new effective analysis method is proposed for the piezoelectric cladded acoustic fiber of hexagonal crystal symmetry. Interpreting all quantities appearing in the boundary conditions as state variables, a first-order differential equations system is obtained to investigate the waves in cladded acoustic fiber of hexagonal symmetry. This approach makes possible the analysis of cladded fibers by the general transmission-matrix technique. By using this method, dispersion relations for all modes are easily obtained. Examples of several materials are given. This method can also be applied in the analysis of the multilayered cylindrical fiber for which the individual layers have hexagonal symmetric piezoelectrical material.
Keywords :
acoustic waveguides; boundary-value problems; piezoelectric devices; ultrasonic dispersion; ultrasonic propagation; boundary conditions; dispersion relations; first-order differential equations system; hexagonal crystal symmetry; multilayered cylindrical fiber; piezoelectric cladded acoustic fibers; state variables; transmission-matrix technique; Acoustic imaging; Acoustic propagation; Acoustic waves; Anisotropic magnetoresistance; Boundary conditions; Differential equations; Engine cylinders; High-resolution imaging; Piezoelectric effect; Transmission line matrix methods;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
