У 2010 році закінчив Національний технічний університет України «Київський політехнічний інститут» за спеціальністю Прилади і системи неруйнівного контролю. З листопада 2010 року навчався в аспірантурі на приладобудівному факультеті за спеціальністю "Прилади і методи контролю та визначення складу речовин". З вересня 2012 року працює в Національному технічному університеті України „Київський політехнічний інститут” на кафедрі приладів і систем неруйнівного контролю приладобудівного факультету на посаді асистента кафедри.
Викладає дисципліни: Мікропроцесорна техніка (3 курс), Мікропроцесорна техніка (3 курс), Електроніка (2,3 курси), Контрольно-вимірювальна техніка (4курс), Метрологія (2 курс).
Контакти: Ця електронна адреса захищена від спам-ботів. Вам потрібно увімкнути JavaScript, щоб побачити її.
Сторінка викладача в системі "Інтелект"
НАУКОВІ ПРАЦІ:
Using of parametric transducers in pulsed eddy current testing
Eddy current nondestructive testing (ECNDT) is one of the most common types of NDT, characterized by the simple interaction way of the testing object (TO) with the eddy current transducer (ECT), relatively low price, high efficiency, and reliability of the results. The current ECNDT development is focused on solving the tasks of improving the ECT, methods of excited eddy currents in the TO, developing new methods for processing information signals of the transducer, etc.
--// NDT in Context of the Associated Membership of Ukraine in the EU (NDT-UA 2018): Conference proceedings / Lublin, Poland: USNDT, ‒ 2018 – №2, ‒ рр. 30-33
Study of Parametric Transducer Operation in Pulsed Eddy Current Non-Destructive Testing
In this article is considered the experimental results of the using the parametric type of an eddy current transducer at two excitation modes - pulsed and harmonic. The flat samples from aluminum alloy and steel with artificial crack-like defects on them were selected as testing objects. The estimation of the amplitude, decrement and natural oscillation frequency of the eddy current transducer signal as informative parameters was performed according to the results of the analysis of experimental signals of the parametric transducer. The results of the comparative analysis of the eddy current transducer signals at harmonic and pulsed excitation are presented by estimating of changes in the signals amplitude values from the crack depth in the testing object. It is shown that the signals of parametric eddy current transducer in the form of damped harmonic oscillations obtained by pulse excitation of the transducer can be used in the eddy current non-destructive testing to estimate the depth of surface cracks. The types of the dependences of the attenuation and the natural oscillation frequency of the eddy current transducer signal from the change in the crack depth in the testing object were established using the experimental data. The analysis of the sensitivities of the informational parameters of the eddy current transducer at pulsed excitation to the crack depth in the testing objects is performed.
--// 2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO). Conf. proc. - Kyiv, Ukraine. – 2018. – pp.594 - 597
Analysis of the signal parameters measurement uncertainty at pulsed eddy current non-destructive testing
The purpose of this paper has been to obtain and analyze analytical expressions of the standard uncertainty of the measurement the decrement and the oscillations frequency of the eddy current transducer signal in pulse mode excitation. Analysis of obtained expressions made possible to determinate and justify the conditions for choosing a time interval for analyzing the eddy current transducer signals in order to minimize these uncertainties. The results of the conducted experiments are given. Taking into the condition of obtaining the minimum error for evaluating the trends of the signal characteristics, the accuracy of measuring the transducer signal decrement and natural oscillation frequency increases to two times.
--// International Journal “NDT Days”, Volume 1, Issue 4, 461-468 pp., 2018. – Созополь, 2018. ISSN: 2603-4018
Analysis of the uncertainty of measurement in pulsed eddy current signal evaluation
The probability of the pulsed eddy current NDT results depends on the measurement accuracy of the signal parameters of eddy current transducers. In particular, among such parameters are the frequency and attenuation ratio of harmonic oscillations, which arise in the pulse mode of the transducer. The process of evaluation of these parameters is accompanied by the emergence of a error random component, which is due to the noise effect of different nature, as well as the methodical component, which is determined by the features of the applied methods of digital signal processing and modes of obtaining experimental data. The standard uncertainty of measuring the frequency and attenuation ratio of the transducer signals obtained from signal's amplitude and phase characteristics is analyzed in the article. The characteristics are determined by the discrete Hilbert transform of the transducer signals. The performed analysis and the obtained formulas can be used for engineering calculations of numerical values of measurement uncertainties of attenuation and internal oscillations frequency and recommendation justification for choosing the time length of observation intervals
and signal analysis. The efficiency of the obtained results is confirmed by an example of the signal processing of the multi-differential eddy current transducer in the pulsed excitation mode for the crack detection tasks. The method of determination and analysis of transducer signals information parameters is given. The experimental results of the influence estimation of the electrical conductivity value of the sample material and the cracks depth on the informative parameters of the signal are given. The general character of the dependence of the attenuation and the frequency of the transducer signal oscillations from the crack depth in the testing object is established. The sensitivity of the transducer signal informative parameters to the change in the crack depth is determined.
--// The e-Journal of Nondestructive Testing. – 2018. – № 8, Vol. 23.
Застосування імпульсної вихрострумової дефектоскопії для моніторингу технічного стану великогабаритних об’єктів
Висока ефективність та надійність отримуваних результатів вихрострумового неруйнівного контролю (ВCНК) сприяє його широкому застосуванню у різних галузях науки і техніки для розв‘язання задач дефектоскопії, контролю якості матеріалів і виробів, моніторингу характеристик об'єктів контролю (ОК) різного призначення. На сьогодні до актуальних задач ВСНК відносять вдосконалення вихрострумових перетворювачів (ВСП) [1], способів збудження вихрових струмів в ОК, розроблення нових методів опрацювання інформаційних сигналів ВСП [2]...
--// Збірник матеріалів 8-ї Національної науково-технічної конференції «НК та технічна діагностика - UkrNDT-2016" / Київ: УТ НКТД, 22-24 листопада 2016. – С. 174-178.
Мобильный вихретоковый дефектоскоп с беспроводной системой передачи данных
This article has described the direction in the development of the modern flaw detection - wireless connection. Wireless connectivity between the measuring sensors and processing unit increases the reliability of testing and decreases the decision-making time. It increases stability of devices under adverse environmental conditions and allows for simplifying executing operation in any position. The article includes the descriptions of the advantages of the GSM channel and justification of existing standards for particular non-destructive testing tasks and conditions.
--// Ж-л «Научные известия на НТС машиностроения», Созополь, Болгария. – 2016 – №187. – С. 43–45.