Abstract
All the parameters of a linear phased array may affect the performance and cost of the ultrasonic inspection system. The characteristic of the acoustic field for an array transducer is the most important factor whether the echo information of the inspected area in a specimen can be obtained and utilized effectively, and it is the main basis of designing a phased array. A mathematical model was presented to simulate the characteristic of an acoustic field radiated from an ultrasonic linear phased array on the basis of Huygens' principle. Based on the model, the beam directivity function can be obtained, and the effects of inter-element spacing, number of elements, element width, and transducer center frequency on beam directivity and steerability in a linear phased array transducer are systematically discussed.
Similar content being viewed by others
REFERENCES
Weyman, A.E., Principles and Practice of Echocardiography, Philadelphia: Lea and Febiger, 1994.
Beardsley, B., Peterson, M., and Achenbach, J.D., A Simple Scheme for Self-focusing of an Array, NDE J., 1995, vol. 14, no. 4, pp. 169–179.
Zang, M., Cheng, A., Achenbach, J.D., and Doutsch, W.A.K., Self-focusing by a Linear Array on a Surface-Breaking Crack at the Opposite Side of a Plate, in Review of Progress in Quantitative Nondestructive Evaluation, 1999, vol. 18, pp. 1085–1092.
Gong-Huan Du, Acoustics Basic, Shanghai: Scientific and Technical Publishers, 1981, vol. 1.
Ruo Feng, Principle and Design of Ultrasonic Diagnostic Instruments, Beijing: Medical Scientific and Technical Press, 1993.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Huang, J., Que, P.W. & Jin, J.H. A Parametric Study of Beam Steering for Ultrasonic Linear Phased Array Transducer. Russian Journal of Nondestructive Testing 40, 254–259 (2004). https://doi.org/10.1023/B:RUNT.0000043674.60035.0e
Issue Date:
DOI: https://doi.org/10.1023/B:RUNT.0000043674.60035.0e