The Effect of the Position Determination Error for Flexible Linear Array Elements on the Tomogram Focusing-Reference-Cited by-同舟云学术

The Effect of the Position Determination Error for Flexible Linear Array Elements on the Tomogram Focusing

Published:2023-05-15 Issue:10 Volume:23 Page:4757
ISSN:1424-8220
Container-title:Sensors
language:en
Short-container-title:Sensors

Author:

Sednev Dmitry A.¹,Soldatov Alexey I.¹,Soldatov Andrey A.¹,Kostina Maria A.¹,Koneva Daria A.¹^ORCID

Affiliation:

1. School of Non-Destructive Testing, National Research Tomsk Polytechnic University, 30 Lenin Avenue, 634050 Tomsk, Russia

Abstract

In the article, the study of the quality of tomogram focusing during the inspection of objects with curved surfaces by flexible acoustic array was described. The main goal of the study was theoretically and experimentally define the acceptable deviation limits of the elements’ coordinates values. The tomogram reconstruction was performed by the total focusing method. The Strehl ratio was chosen as a criterion for assessing the quality of tomogram focusing. The ultrasonic inspection procedure were simulated and validated experimentally by means of convex and concave curved arrays. In the study, it was proven that the elements coordinates of the flexible acoustic array were determined with an error of no more than 0.18λ and the tomogram image was obtained in sharp focus.

Funder

the Ministry of Science and Higher Education of the Russian Federation

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry

Link

https://www.mdpi.com/1424-8220/23/10/4757/pdf

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