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Instrumentation, Mesure, Métrologie

1631-4670
Revue des Systèmes
 

 ARTICLE VOL 3/3-4 - 2003  - pp.87-116
TITLE
Modeling of the Ultrasonic Field of Two Transducers Immersed in a Homogeneous Fluid Using Distributed Point Source Method

ABSTRACT

The newly developed DPSM (Distributed Point Source Method) is used to model ultrasonic field generated by two transducers immersed in a homogeneous fluid. Interaction between the two transducers has been considered during the modeling. Acoustic fields generated by a single transducer in a homogeneous fluid, and in a non-homogeneous fluid with an interface have been modeled earlier. Earlier investigations also computed the scattered field for a scatterer of finite size placed in a homogeneous fluid. In this investigation, two transducers are placed in a homogeneous fluid to generate the ultrasonic field. The semi analytical DPSM technique is used to discretize the transducer surfaces by placing a finite number of point sources on the transducer surface. The interaction between the ultrasonic fields from each transducer is numerically modeled for different orientations of the transducers. Importance of considering the interaction effect, coming from the fact that the neighboring transducer also acts as a scatterer and not only as an ultrasonic wave generator, has been emphasized in this paper.

AUTEUR(S)
Rais AHMAD, Tribikram KUNDU , Dominique PLACKO

KEYWORDS
Analytical Modeling, Ultrasonic Acoustic Transducer, Ultrasonic Field, Elastic wave scattering, Transducer Interaction, Distributed Point Source.

LANGUE DE L'ARTICLE
Anglais

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