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Listar por palabra clave "Acoustic lens"

Mostrando ítems 1-6 de 6

Analysis of Predistortion Techniques on Fresnel Zone Plates in Ultrasound Applications

Fuster Escuder, José Miguel; Pérez-López, Sergio; Belmar Ibáñez, Francisco; Candelas Valiente, Pilar (MDPI AG, 2021-08)

[EN] In this work, we analyze the effect of predistortion techniques on the focusing profile of Fresnel Zone Plates (FZPs) in ultrasound applications. This novel predistortion method is based on either increasing or ...
Design, modelling, characterization and implementation of acoustic lenses for modulation of ultrasound beams.

Tarrazó Serrano, Daniel (Universitat Politècnica de València, 2021-01-21)

[ES] La capacidad de controlar y modificar los haces de energía ha sido motivo de investigación por parte de la comunidad científica desde largo tiempo atrás. En el campo de la acústica, este control energético de las ondas ...
Directional Ultrasound Source for Solid Materials Inspection: Diffraction Management in a Metallic Phononic Crystal

Selim, Hossam; Picó Vila, Rubén; Trull, Jose; Delgado Prieto, Miguel; Cojocaru, Crina (MDPI AG, 2020-11)

[EN] In this work, we numerically investigate the diffraction management of longitudinal elastic waves propagating in a two-dimensional metallic phononic crystal. We demonstrate that this structure acts as an "ultrasonic ...
Diseño y caracterización de metamateriales acústicos basados en guías de onda

Graciá Salgado, Rogelio (Universitat Politècnica de València, 2014-07-14)

En la realización de este trabajo se obtendrán las expresiones analíticas que permiten describir las propiedades acústicas de una red de elementos dispersivos en el interior de una guía de ondas, permitiendo así, obtener ...
M-Bonacci Zone Plates for Ultrasound Focusing

Pérez-López, Sergio; Fuster Escuder, José Miguel; Candelas Valiente, Pilar (MDPI AG, 2019-10)

[EN] In this work, we present a thorough analysis on M-bonacci zone plates for ultrasound focusing applications. These planar lenses are capable of providing bifocal focusing profiles with equal intensity in both foci and ...
Transient Analysis of Fresnel Zone Plates for Ultrasound Focusing Applications

Pérez-López, Sergio; Tarrazó-Serrano, Daniel; Dolmatov, Dimitry O.; Rubio Michavila, Constanza; Candelas Valiente, Pilar (MDPI AG, 2020-12)

[EN] Fresnel Zone Plates are planar lenses that can be used to focus ultrasound beams. This kind of acoustic lenses can play a key role in the resolution of ultrasonic NDT systems. In this type of pulse-echo applications, ...