Mutual Radiation Impedance of Uncollapsed CMUT Cells with Different Radii
Alper Ozgurluk, H. Kagan Oguz, Abdullah Atalar, Hayrettin Koymen
TL;DR
This paper introduces a polynomial approximation for mutual radiation impedance between uncollapsed CMUT cells of different sizes, enabling accurate circuit modeling and matching FEM simulations for improved ultrasonic device design.
Contribution
The paper presents a novel polynomial approximation for mutual impedance between CMUT cells of varying radii, enhancing simulation accuracy in ultrasonic transducer modeling.
Findings
Excellent agreement with FEM simulations
Effective in circuit model simulations
Applicable to different cell radii
Abstract
A polynomial approximation is proposed for the mutual acoustic impedance between uncollapsed capacitive micromachined ultrasonic transducer (CMUT) cells with different radii in an infinite rigid baffle. The resulting approximation is employed in simulating CMUTs with a circuit model. A very good agreement is obtained with the corresponding finite element simulation (FEM) result.
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Taxonomy
TopicsUltrasonics and Acoustic Wave Propagation · Ultrasound Imaging and Elastography · Acoustic Wave Phenomena Research