Time-domain modeling of composite arrays for underwater imaging
作者： Wojcik , Vaughan , Murray , Mould
DOI: 10.1109/ULTSYM.1994.401711
关键词: Transducer 、 Impulse response 、 Ultrasonic dispersion 、 Finite element method 、 Acoustics 、 Piezoelectricity 、 Underwater 、 Dispersion (optics) 、 Fourier optics 、 Computer science 、 Molding (process) 、 Transient response 、 Time domain
摘要: Time-domain, finite element simulations are used to explore some design issues and the practical modeling envelope for 1-3 composite arrays in underwater pulse-echo imaging transducers. This provides a relatively new perspective on problem via large-scale 2D 3D transient that include many piezoelectric pillars within composite. Cross-talk from prototype 150 kHz array is modeled compared data Some of slab's dispersion behavior derived its impulse response interpret cross-talk. Numerical experiments 500 demonstrate effect pillar taper distribution-freedoms offered by injection molding. Fourier optics manipulation projected acoustic field illustrated. These studies support an ongoing fabrication collaboration under aegis United States Commonwealth naval agencies
sci-hub.se 参考文章(19)
J. VonNeumann, R. D. Richtmyer, A Method for the Numerical Calculation of Hydrodynamic Shocks Journal of Applied Physics. ,vol. 21, pp. 232- 237 ,(1950) , 10.1063/1.1699639
Y. Kagawa, T. Yamabuchi, Finite Element Simulation of Two-Dimensional Electromechanical Resonators IEEE Transactions on Sonics and Ultrasonics. ,vol. 21, pp. 275- 282 ,(1974) , 10.1109/T-SU.1974.29826
Time domain wave equations for lossy media obeying a frequency power law Journal of the Acoustical Society of America. ,vol. 96, pp. 491- 500 ,(1994) , 10.1121/1.410434
R.E. Newnham, D.P. Skinner, L.E. Cross, Connectivity and piezoelectric-pyroelectric composites Materials Research Bulletin. ,vol. 13, pp. 525- 536 ,(1978) , 10.1016/0025-5408(78)90161-7
Henno Allik, Kenneth M. Webman, John T. Hunt, Vibrational response of sonar transducers using piezoelectric finite elements Journal of the Acoustical Society of America. ,vol. 56, pp. 1782- 1791 ,(1974) , 10.1121/1.1903513
R. Courant, K. Friedrichs, H. Lewy, �ber die partiellen Differenzengleichungen der mathematischen Physik Mathematische Annalen. ,vol. 100, pp. 32- 74 ,(1928) , 10.1007/BF01448839
R. Krimholtz, D.A. Leedom, G.L. Matthaei, New equivalent circuits for elementary piezoelectric transducers Electronics Letters. ,vol. 6, pp. 398- 399 ,(1970) , 10.1049/EL:19700280
David D. Hall, Jeremy T. Bennett, Gordon Hayward, Design and evaluation of ultrasonic arrays using 1-3 connectivity composites New Developments in Ultrasonic Transducers and Transducer Systems. ,vol. 1733, pp. 216- 227 ,(1992) , 10.1117/12.130599
W.A. Smith, The role of piezocomposites in ultrasonic transducers internaltional ultrasonics symposium. pp. 755- 766 ,(1989) , 10.1109/ULTSYM.1989.67088
Gregory L. Wojcik, John Mould, Jr., Richard A. Ferguson, Ronald M. Martino, K. K. Low, Some image modeling issues for I-line, 5X phase-shifting masks SPIE's 1994 Symposium on Microlithography. ,vol. 2197, pp. 455- 465 ,(1994) , 10.1117/12.175440