Transformation of Acoustic Pulses into Electromagnetic Signals in Defective Structures
| Parent link: | Journal of Nondestructive Evaluation Vol. 39.— 2020.— [82,14 p.] |
|---|---|
| Enti autori: | , |
| Altri autori: | , , , , , , |
| Riassunto: | Title screen In this study, the physical foundations of the combined acoustic-electric method are examined for testing layered materials, as well as materials with defects in the form of solid inclusions. The numerical simulation results of the electromagnetic signals excited in a test material via pulsed acoustic impact are presented. The effect of sample layering on the electromagnetic response parameters under a determined acoustic impact is shown. Possible changes in the electromagnetic signals parameters with different charge states of dielectric defect structures, as well as changes in the parameters of electromagnetic signals at different amplitudes of acoustic exposure to a defective structure with a constant charge, are revealed. It is shown that the amplitude-frequency parameters of the emitted electromagnetic signals are directly related to the characteristics of the determined acoustic impact and the charge state of layered and defective structures. It was found that the change in the amplitude of electromagnetic signals linearly depends on the magnitude of the defect plates charge, as well as on the magnitude of the exciting acoustic pulse at a constant charge state of the defect. A research set-up and the model samples with solid-state inclusions in the form of layers and volume defects are described. The duration of the exciting acoustic pulse at the base was 50 µs, and its energy was varied within (8–15) mJ. The sensitivity at the input of the electromagnetic receiver was 0.5 mV, and the output gain was 10 or 100 selectively. The operating frequency range was 1-100 kHz. As a result of experimental studies, the correspondence of the amplitudes of electromagnetic responses to the distribution calculated in time and space of mechanical stresses arising in a layered or defective system during the propagation of an acoustic pulse was established. It is shown that the electromagnetic signals parameters, as well as the distribution of the acoustic pulse, are significantly affected by the difference between the sample and inclusion acoustic impedances. Режим доступа: по договору с организацией-держателем ресурса |
| Lingua: | inglese |
| Pubblicazione: |
2020
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| Soggetti: | |
| Accesso online: | https://doi.org/10.1007/s10921-020-00727-9 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662909 |
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| 200 | 1 | |a Transformation of Acoustic Pulses into Electromagnetic Signals in Defective Structures |f A. A. Bespalko (Bespal'ko), Yu. N. Isaev, D. D. Dann [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 44 tit.] | ||
| 330 | |a In this study, the physical foundations of the combined acoustic-electric method are examined for testing layered materials, as well as materials with defects in the form of solid inclusions. The numerical simulation results of the electromagnetic signals excited in a test material via pulsed acoustic impact are presented. The effect of sample layering on the electromagnetic response parameters under a determined acoustic impact is shown. Possible changes in the electromagnetic signals parameters with different charge states of dielectric defect structures, as well as changes in the parameters of electromagnetic signals at different amplitudes of acoustic exposure to a defective structure with a constant charge, are revealed. It is shown that the amplitude-frequency parameters of the emitted electromagnetic signals are directly related to the characteristics of the determined acoustic impact and the charge state of layered and defective structures. It was found that the change in the amplitude of electromagnetic signals linearly depends on the magnitude of the defect plates charge, as well as on the magnitude of the exciting acoustic pulse at a constant charge state of the defect. A research set-up and the model samples with solid-state inclusions in the form of layers and volume defects are described. The duration of the exciting acoustic pulse at the base was 50 µs, and its energy was varied within (8–15) mJ. | ||
| 330 | |a The sensitivity at the input of the electromagnetic receiver was 0.5 mV, and the output gain was 10 or 100 selectively. The operating frequency range was 1-100 kHz. As a result of experimental studies, the correspondence of the amplitudes of electromagnetic responses to the distribution calculated in time and space of mechanical stresses arising in a layered or defective system during the propagation of an acoustic pulse was established. It is shown that the electromagnetic signals parameters, as well as the distribution of the acoustic pulse, are significantly affected by the difference between the sample and inclusion acoustic impedances. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of Nondestructive Evaluation | ||
| 463 | |t Vol. 39 |v [82,14 p.] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a mathematical modeling | |
| 610 | 1 | |a experimental modeling | |
| 610 | 1 | |a electromagnetic signal | |
| 610 | 1 | |a acoustic excitation | |
| 610 | 1 | |a acoustic-electric transformation | |
| 610 | 1 | |a dielectric layered materials | |
| 610 | 1 | |a defects | |
| 610 | 1 | |a математическое моделирование | |
| 610 | 1 | |a экспериментальное моделирование | |
| 610 | 1 | |a электромагнитные сигналы | |
| 701 | 1 | |a Bespalko (Bespal'ko) |b A. A. |c physicist |c Leading researcher of Tomsk Polytechnic University, Candidate of physical and mathematical sciences |f 1948- |g Anatoly Alekseevich |3 (RuTPU)RU\TPU\pers\32243 |9 16232 | |
| 701 | 1 | |a Isaev |b Yu. N. |c specialist in electrical engineering |c Professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences |f 1960- |g Yusup Niyazbekovich |3 (RuTPU)RU\TPU\pers\33704 |9 17335 | |
| 701 | 1 | |a Dann |b D. D. |c specialist in the field of electrical engineering |c Engineer-researcher of Tomsk Polytechnic University |f 1987- |g Denis Dmitrievich |3 (RuTPU)RU\TPU\pers\32192 |9 16192 | |
| 701 | 1 | |a Pomishin |b E. K. |c physicist |c technician of Tomsk Polytechnic University |f 1993- |g Evgeny Karlovich |3 (RuTPU)RU\TPU\pers\36440 |9 19494 | |
| 701 | 1 | |a Fedotov |b P. I. |c specialist in the field of electrical engineering |c researcher of Tomsk Polytechnic University |f 1982- |g Pavel Ivanovich |3 (RuTPU)RU\TPU\pers\34571 |9 17933 | |
| 701 | 1 | |a Petrov |b M. V. |c specialist in the field of non-destructive testing |c Associate Scientist of Tomsk Polytechnic University |f 1992- |g Maksim Vyacheslavovich |3 (RuTPU)RU\TPU\pers\36439 |9 19493 | |
| 701 | 1 | |a Utsyn |b G. E. |g Grigory Evgenjevich | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Институт неразрушающего контроля |b Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников |3 (RuTPU)RU\TPU\col\19033 |9 27309 |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа неразрушающего контроля и безопасности |b Отделение контроля и диагностики |3 (RuTPU)RU\TPU\col\23584 |9 28375 |
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