Ultrasonic Field Computation in Presence of a Scatterer of Finite Dimension

Dominique Placko, Tribikram Kundu, Rais Ahmad

Research output: Contribution to journalConference articlepeer-review

19 Scopus citations

Abstract

A recently developed semi-analytical technique called DPSM (Distributed Point Source Method) is improved and used to model the ultrasonic field in a fluid generated by an ultrasonic transducer and scattered by a solid plate of finite dimension. Earlier works on the ultrasonic field modeling by the DPSM technique have been limited to homogeneous fluids or non-homogeneous media with infinite interfaces. This is the first attempt to model the complete ultrasonic field consisting of incident, reflected, transmitted and diffracted fields by a finite scatterer of any shape or size. No closed form analytical solution exists for ultrasonic field computation in presence of a scatterer and an ultrasonic transducer, both of which can have finite dimensions and any shape. Finite element solution for wave propagation analysis is very time consuming; therefore, the semi analytical technique used here appears to be the method of choice for solving such practical problems. The paper shows how the scattered field varies as the striking angle and dimensions of the scatterer change.

Original languageEnglish (US)
Pages (from-to)169-179
Number of pages11
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5047
DOIs
StatePublished - Nov 27 2003
EventPROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Smart Nondestructive Evaluation and Health Monitoring of Structural and Biological Systems II - San Diego, CA, United States
Duration: Mar 3 2003Mar 5 2003

Keywords

  • Numerical Technique
  • Point Source
  • Pressure Wave
  • Scatterer
  • Ultrasonic Acoustic Sensor
  • Ultrasonic Field

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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