PSpice modelling of ultrasound transducers: comparison of software models to experiment

This paper presents a complete PSpice model of an ultrasound single-element transducer, including electrical and mechanical matching as well as the focusing lens. By using this model, it is possible to obtain a relation between the electrical driving source and the acoustic velocity on the transducer surface. This boundary condition then allows the acoustic field to be calculated by numerical methods. Experimental data obtained with two different transducers are in good agreement with results predicted by the related models.

[1]  G.R. Harris,et al.  Hydrophone measurements in diagnostic ultrasound fields , 1988, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[2]  J. Jensen,et al.  Calculation of pressure fields from arbitrarily shaped, apodized, and excited ultrasound transducers , 1992, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[3]  J. Jensen.  Estimation of Blood Velocities Using Ultrasound: A Signal Processing Approach , 1996 .

[4]  P. Stepanishen.  Transient Radiation from Pistons in an Infinite Planar Baffle , 1970 .

[5]  W. P. Mason.  Electromechanical transducers and wave filters , 1942 .

[6]  Mauri Luukkala,et al.  The impulse response and pressure nearfield of a curved ultrasonic radiator , 1976 .

[7]  Lawrence E. Kinsler,et al.  Fundamentals of acoustics , 1950 .

[8]  R. Lucklum,et al.  SPICE model for lossy piezoceramic transducers , 1997, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[9]  M. Redwood.  Transient Performance of a Piezoelectric Transducer , 1961 .

[10]  J. Arendt.  Paper presented at the 10th Nordic-Baltic Conference on Biomedical Imaging: Field: A Program for Simulating Ultrasound Systems , 1996 .

[11]  A. R. Selfridge,et al.  Approximate Material Properties in Isotropic Materials , 1985, IEEE Transactions on Sonics and Ultrasonics.

[12]  F.L. Thurstone,et al.  Biomedical Ultrasonics , 1970, IEEE Transactions on Industrial Electronics and Control Instrumentation.

[13]  I. Introductiok.  Implementation of Mason's Model on Circuit Analysis Programs , 1986 .

[14]  F. Foster,et al.  Ultrasound Transducers for Pulse-Echo Medical Imaging , 1983, IEEE Transactions on Biomedical Engineering.