Title :
New X-wave solutions of isotropic/homogenous scalar wave equation
Author :
Crespo, Y. ; Calás, H. ; Moreno, E. ; Eiras, J.A. ; Secada, J.D. ; Leija, L.
Author_Institution :
Inst.de Cibernetica Matematica y Fisica, Habana, Cuba
Abstract :
Based on the general solution proposed by Sushilov and Tavakkoli, new nondiffracting X-wave solution have been derived for the isotropic/homogenous scalar wave equation in cylindrical coordinates. It is shown that the velocity power spectrum of the new X-waves is limited within the ultrasonic range and they could be realized by a finite aperture transducer. The characteristics of one of these solutions are studied for finite aperture case. For similar source spectra, the results are compared to Lu & Greenleaf X-wave and it is shown that both solutions have the same depth of field but the new solution beam width is narrower.
Keywords :
acoustic radiators; ultrasonic velocity; ultrasonic waves; wave equations; X-wave solutions; acoustic radiation; cylindrical coordinates; finite aperture transducer; homogenous scalar wave equation; isotropic scalar wave equation; ultrasonic waves; velocity power spectrum; Acoustic beams; Acoustic transducers; Apertures; Ceramics; Fourier transforms; Laboratories; Narrowband; Partial differential equations; Polymers; Ultrasonic transducers; Acoustic Radiation; Radiation Field; Simulation;
Conference_Titel :
Electrical and Electronics Engineering, 2005 2nd International Conference on
Print_ISBN :
0-7803-9230-2
DOI :
10.1109/ICEEE.2005.1529598
