The Focused Beam Forming with a Monolithic 2D Phased Array

• Authors: B. Lila , J. Kapelewski
• Languages of publication: EN

Abstracts

EN

A new type of the monolithic acoustic scanner based on a near-surface quasicomposite two-dimensional array, implemented in the solid elastic substrate was proposed. It provides a simple means of focusing and scanning a beam of acoustic waves, radiated into the depth of the elastic solid substrate. A chirped surface acoustic wave is converted into a focused bulk wave by scattering from an array composed of a 2D periodic system of regions with varying material parameters, located at the surface of a surface acoustic waves substrate. In the paper, a simple numerical simulation model is presented to analyse the influences of the dynamical and geometrical parameters of the surface structure, as well as the influences of incident surface acoustic waves signal profile on the focal distribution.

Keywords

EN

46.40.-f; 43.58.+z

Discipline

• 46.40.-f: Vibrations and mechanical waves(see also 43.40.+s Structural acoustics and vibration; 62.30.+d Mechanical and elastic waves; vibrations in mechanical properties of solids)
• 43.58.+z: Acoustical measurements and instrumentation

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 6A
• Pages: A-151-A-155

Dates

published

2008-12

Contributors

author

B. Lila

• Electronics Department, Military University of Technology, S. Kaliskiego 2, 00-908 Warsaw, Poland

author

J. Kapelewski

• Electronics Department, Military University of Technology, S. Kaliskiego 2, 00-908 Warsaw, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.114.A-151