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- Article name
- SPECTRAL ANALYSIS OF THE RESULTS OF ELECTROPHYSICAL NON-DESTRUCTIVE TESTING OF NPP TECHNOLOGICAL EQUIPMENT
- Authors
- Surin V. I., , VISurin@mephi.ru, National Nuclear University «MEPHI», Moscow, Russia
Adamenkov A. K., , a.adamenkov@ase-ec.ru, Rostov NPP, Rostov, Russia
Malakhov I. V., , malakhov-iv@vdnpp.rosenergoatom.ru, Rostov NPP, Rostov, Russia
Ozherelyev V. D., , victorozhereliev@yandex.ru, Rostov NPP, Rostov, Russia
- Keywords
- electrophysical non-destructive testing of industrial equipment / scanning contact potentiometry / time-frequency analysis of experimental data
- Year
- 2021 Issue 1 Pages 27 - 30
- Code EDN
- Code DOI
- 10.52190/2073-2597_2021_1_27
- Abstract
- We have developed an algorithm for successive mathematical transformations using a discrete linear response function, which is applied to the results of electrophysical non-destructive testing carried out in the process of preventive work at the first power unit of the Rostov NPP. It is shown that the use of the low-frequency FIR filter function as part of the reconciliation, together with the fast Fourier transform, gives positive results when scaling localized structural inhomogeneities in welded joints at high fixation levels. The best results of approximation in the frequency domain were obtained using the developed algorithm for spectral analysis of the control results based on the double discrete Fourier transform.
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