Electronic Journal Technical Acoustics ISSN 1819-2408

M. G. S. Ali

The effect of transducer angulation on pulse-echo amplitude scan signal formation

language: English

received 28.03.2009, published 25.05.2009

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ABSTRACT

The paper describes a simple simulation of the signal formation process in an ultrasonic pulse-echo amplitude scan line. It includes transducer angulations, radiation coupling and transducer responses. The simulation is used to estimate the effect of oblique incidence on signal formation.
Key words: ultrasonic A-scan, transducer, simulation, convolution.

7 pages, 7 figures

Сitation: M. G. S. Ali. The effect of transducer angulation on pulse-echo amplitude scan signal formation. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2009, 5.

REFERENCES

1. B. A. J. Angelsen, Ultrasonic imaging: waves, signals, and signal processing. Emantec AS, Trondheim, Norway, 2000.
2. Albert Goldstein and Raymond Powis, Medical ultrasonic Diagnostics: in Physical Acoustic, Vol 23. Academic press, 1999.
3. M. G. S. Ali and A. Raouf Mohamed. Cepstral predication analysis of the signal pathway in an ultrasonic A-scan. Journal of Sound and Vibration, 236 (4), 609–621, 2000.
4. P. N. T Wells. Ultrasonic in clinical diagnosis In: Scientific Basis of Medicine: Annual Reviews. Athlone Press, London, 38, 1966.
5. R. C. Chivers and C. R. Hill. A spectral approach to ultrasonic scattering from human tissue: methods, objective and back-scattering measurements. Phys. Med. Biol. 20, 799–809, 1975.
6. T. L. Rhyne. Radiation coupling of a disk to a plane and back or a disk to a disk. J. Acoust. Soc. Am, 61, 318–324, 1977.
7. R. Challis. The effect of transducer-reflector angulation on echoes received from targets using Ultrasonic pulse-echo equipment. Acustica, 50, 222–225, 1982.
8. G. K. Lewis. A matrix technique for analyzing the performance of multilayer front matched and backed piezoelectric ceramic transducers. Acoustical imaging, 8, 395–416, 1980.
9. M. G. S. Ali. Discrete time model of acoustic waves transmitted through layers. Journal of Sound and Vibration, 224(2), 349–357, 1999.
10. J. W. Hunt., M. Akditi and F. S. Foster. Ultrasound transducers for pulse-echo medical imaging. IEEE Trans Bio. Eng., 30, 454–463, 1983.

M. G. S. Ali received M.Sc. degree in Physics in 1985 and Ph.D. in Computational Physics in 1989 from Minia University, Egypt. He worked as a professor in Physics Department, Minia University, Egypt. He is currently professor at King Saud University, Physics Department, Science Collage, Al-Dawadme. He has published 28 research papers in national and internationals journals. e-mail: mgalal09(at)yahoo.com