Application of Phase-Reversal Fresnel Zone Plates for High-Resolution Robotic Ultrasonic Non-Destructive Evaluation; Sensors; Vol. 21, iss. 23

Application of Phase-Reversal Fresnel Zone Plates for High-Resolution Robotic Ultrasonic Non-Destructive Evaluation; Sensors; Vol. 21, iss. 23

Bibliographic Details
Parent link:Sensors
Vol. 21, iss. 23.— 2021.— [7792, 12 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Центр промышленной томографии Международная научно-образовательная лаборатория неразрушающего контроля
Other Authors: Dolmatov D. O. Dmitry Olegovich, Tarrazo-Serrano D. Daniel, Filippov G. A. German Alekseevich, Uris A. Antonio, Sednev D. A. Dmitry Andreevich
Summary:Title screen
Nowadays the development of automated inspection systems based on six degrees of freedom robotic manipulators is a highly relevant topic in ultrasonic non-destructive testing. One of the issues associated with such development is the problem of acquiring high-resolution results. In this article, the application Phase-Reversal Fresnel Zone Plates is considered for solving this problem. Such acoustic lenses can solve the task of high-resolution results acquisition by using a single unfocused transducer. Furthermore, Phase-Reversal Fresnel Zone Plates can provide the desired focusing depth with the fixed thickness of the coupling layer. It is important in the case of application of devices which provide localized coupling. In this paper a proper design of Phase-Reversal Fresnel Zone Plate was determined according to the conditions of planned experiments. Its efficiency was verified via the Finite Element Method modeling. In all performed experiments the relative error of flaws size estimation did not exceed 6% whereas the signal-to-noise ratio was not lower than 17.1 dB. Thus, experimental results demonstrate that the application of Phase-Reversal Fresnel Zone Plates allowed to obtain results with high lateral resolution and signal-to-noise ratio. These results demonstrate the reasonability of the development of devices that provide localized coupling and use Phase-Reversal Fresnel Zone Plates.
Language:English
Published: 2021
Subjects:
электронный ресурс
труды учёных ТПУ
ultrasonic nondestructive testing
robotic ultrasonic nondestructive evaluation
ultrasonic imaging
ultrasonic focusing
Phase-Reversal Fresnel Zone Plates
localized coupling
неразрушающий контроль
визуализация
фокусировка
Online Access:https://doi.org/10.3390/s21237792
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668077

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