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Journal of Nondestructive Evaluation

, Volume 18, Issue 2, pp 39–57 | Cite as

A Simulation Study of the Beam Steering Characteristics for Linear Phased Arrays

  • Shi-Chang WoohEmail author
  • Yijun Shi
Article

Abstract

Ultrasonic beam steering characteristics for linear phased array transducers are simulated numerically by visualizing the full-field acoustic pressure field of the waves radiated from a linear phased array transducer. The influences of various transducer parameters on the beam steering properties are studied, including number of elements, inter-element spacing, element size, frequency of the transducer and the steering angle. In addition, the effects of these parameters on the near field characteristics are investigated by analyzing the acoustic pressure profile in the steering direction. The simulation results agree well with the analytical solutions which are valid only in the far field. A suggested scheme for optimal transducer design is presented.

phased array transducers dynamic beam steering acoustic pressure field optimum array transducer design numerical simulation visualization and imaging 

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Copyright information

© Plenum Publishing Corporation 1999

Authors and Affiliations

  1. 1.Department of Civil and Environmental EngineeringMassachusetts Institute of TechnologyCambridge

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