Transient Analysis of Fresnel Zone Plates for Ultrasound Focusing Applications

Transient Analysis of Fresnel Zone Plates for Ultrasound Focusing Applications

Dettagli Bibliografici
Parent link:Sensors
Vol. 20, iss. 23.— 2020.— [6824, 9 p.]
Ente Autore: Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Международная научно-образовательная лаборатория неразрушающего контроля
Altri autori: Perez-Lopez S. Sergio, Tarrazo-Serrano D. Danie, Dolmatov D. O. Dmitry Olegovich, Rubio C. Constanza, Candelas P. Pilar
Riassunto:Title screen
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, the pulse duration is an important parameter that specifies the axial resolution, and thus, shorter ultrasound pulses provide higher resolutions. However, acoustic lenses exhibit a transient response that should be considered when setting the pulse duration, as pulses shorter than the transient state duration result in degradation in the response of acoustic lenses in terms of focal intensity, focal displacement, and lateral and axial resolutions. In this work, a thorough analysis of the transient response of Fresnel Zone Plates is discussed, demonstrating that the transient state should be considered in order to achieve optimal focusing performance. Theoretical and numerical results are presented, showing very good agreement.
Lingua:inglese
Pubblicazione: 2020
Soggetti:
электронный ресурс
труды учёных ТПУ
fresnel zone plate
acoustic lens
Flavivirus
transient analysis
temporal focusing profile
Accesso online:https://doi.org/10.3390/s20236824
Natura: Elettronico Capitolo di libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663221

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