| Issue |
MATEC Web Conf.
Volume 376, 2023
Conference on Advanced Materials for Engineering and Functional Purposes (AMEFP 2022)
|
|
|---|---|---|
| Article Number | 01012 | |
| Number of page(s) | 5 | |
| Section | Advanced Materials Technologies and Application | |
| DOI | https://doi.org/10.1051/matecconf/202337601012 | |
| Published online | 13 April 2023 | |
Ultrasonic testing via three-dimensional post-processing of non-uniform matrix phased array data
National Research Tomsk Polytechnic University, Tomsk, 634040 Russia
* Corresponding author: dolmatovdo@tpu.ru
The tomography based on post-processing of phased array signals is of great potential for ultrasonic testing to accurately size the detected flaws. The use of matrix phased arrays in ultrasound tomography can provide three-dimensional data both at one measuring position and during scanning. However, application of these transducers implies processing of a large amount of data, which affects the data processing time. In this study, the post-processing frequency-domain algorithm based on the application of non-uniform fast Fourier transform was experimentally verified. This algorithm is allowed to restore correct results when approaches of optimised set of signals acquisition (sparse and non-uniform phased arrays) are applied. The experimental verification showed that the developed algorithm yields high-resolution results with a high signal-to-noise ratio.
© The Authors, published by EDP Sciences, 2023
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