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

被引：0

作者：

Sednev, Dmitry A. ^{[1
]}

Soldatov, Alexey I. ^{[1
]}

Soldatov, Andrey A. ^{[1
]}

Kostina, Maria A. ^{[1
]}

Koneva, Daria A. ^{[1
]}

机构：

[1] Natl Res Tomsk Polytech Univ, Sch Nondestruct Testing, 30 Lenin Ave, Tomsk 634050, Russia

来源：

SENSORS | 2023年 / 23卷 / 10期

关键词：

curved surface; flexible acoustic array; focusing; Strehl ratio; total focusing method; tomogram; wavelength; ABERRATIONS; ULTRASOUND; ALGORITHM;

D O I：

10.3390/s23104757

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

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 0.18? and the tomogram image was obtained in sharp focus.

引用

页数：14

共 16 条

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