Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core
The physics of the processes of an eddy current electromagnetic sensor of a flaw detector in cooperation with the controlled sample in the Ш-shaped core is revealed and described. The cases of absence of a defect (a crack or a void) and the presence of one or several defects are considered. The form...
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| Date: | 2018 |
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Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України
2018
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oai:ojs.journals.uran.ua:article-1214802018-01-22T11:39:33Z Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core Анализ электромагнитного вихретокового датчика дефектоскопа с Ш-образным сердечником Анализ электромагнитного вихретокового датчика дефектоскопа с Ш-образным сердечником Мягкохлеб, К. Б. Полищук, О. Ф. defect eddy current sensor of the flaw detector УДК 621.3(075) дефект вихревой ток датчик дефектоскопа УДК 621.3(075) дефект вихровий струм датчик дефектоскопа УДК 621.3(075) The physics of the processes of an eddy current electromagnetic sensor of a flaw detector in cooperation with the controlled sample in the Ш-shaped core is revealed and described. The cases of absence of a defect (a crack or a void) and the presence of one or several defects are considered. The formulas for determining the parameters of the flaw detector are derived. In particular, the dependence of the pulling force, in the case of the ferromagnetic material under investigation, on the frequency of the generated signals. This tractive force occurs between the sensor core of the flaw detector and the controlled sample and makes it difficult for the sensor to advance along the material when searching for cracks. It is shown that the higher the frequency, the less the tractive effort. In addition, from the formula of the electromotive force of induction for both output signals of the measuring windings and for eddy currents, an increase in frequency provides an increase in these electromotive forces, thereby increasing the sensitivity of the sensor. Представлены результаты исследования электромагнитного вихретокового датчика дефектоскопа с Ш-образным сердечником, выявлены процессы, возникающие в сердечнике и контролируемом материале. Рассмотрены варианты без трещины в контролируемом материале, с трещиной и с несколькими трещинами, выведены формулы для определения параметров датчиков. Подано результати дослідження електромагнітного вихрострумового датчика дефектоскопа з Ш-подібним осердям. Виявлено процеси, які виникають в осерді та матеріалі, що контролюється. Розглянуто варіанти без тріщини в контрольованому матеріалі, з тріщиною та з декількома тріщинами й виведено формули для визначення параметрів датчиків. Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України 2018-01-22 Article Article application/pdf https://journals.uran.ua/jme/article/view/121480 Journal of Mechanical Engineering; Vol. 20 No. 4 (2017); 53-57 Проблемы машиностроения; Том 20 № 4 (2017); 53-57 Проблеми машинобудування; Том 20 № 4 (2017); 53-57 2709-2992 2709-2984 ru https://journals.uran.ua/jme/article/view/121480/116595 Copyright (c) 2018 К. Б. Мягкохлеб, О. Ф. Полищук https://creativecommons.org/licenses/by-nd/4.0 |
| institution |
Energy Technologies & Resource Saving |
| baseUrl_str |
|
| datestamp_date |
2018-01-22T11:39:33Z |
| collection |
OJS |
| language |
Russian |
| topic |
defect eddy current sensor of the flaw detector УДК 621.3(075) |
| spellingShingle |
defect eddy current sensor of the flaw detector УДК 621.3(075) Мягкохлеб, К. Б. Полищук, О. Ф. Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core |
| topic_facet |
defect eddy current sensor of the flaw detector УДК 621.3(075) дефект вихревой ток датчик дефектоскопа УДК 621.3(075) дефект вихровий струм датчик дефектоскопа УДК 621.3(075) |
| format |
Article |
| author |
Мягкохлеб, К. Б. Полищук, О. Ф. |
| author_facet |
Мягкохлеб, К. Б. Полищук, О. Ф. |
| author_sort |
Мягкохлеб, К. Б. |
| title |
Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core |
| title_short |
Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core |
| title_full |
Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core |
| title_fullStr |
Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core |
| title_full_unstemmed |
Analysis of an electromagnetic eddy current sensor of a flaw detector with an Ш-shaped core |
| title_sort |
analysis of an electromagnetic eddy current sensor of a flaw detector with an ш-shaped core |
| title_alt |
Анализ электромагнитного вихретокового датчика дефектоскопа с Ш-образным сердечником Анализ электромагнитного вихретокового датчика дефектоскопа с Ш-образным сердечником |
| description |
The physics of the processes of an eddy current electromagnetic sensor of a flaw detector in cooperation with the controlled sample in the Ш-shaped core is revealed and described. The cases of absence of a defect (a crack or a void) and the presence of one or several defects are considered. The formulas for determining the parameters of the flaw detector are derived. In particular, the dependence of the pulling force, in the case of the ferromagnetic material under investigation, on the frequency of the generated signals. This tractive force occurs between the sensor core of the flaw detector and the controlled sample and makes it difficult for the sensor to advance along the material when searching for cracks. It is shown that the higher the frequency, the less the tractive effort. In addition, from the formula of the electromotive force of induction for both output signals of the measuring windings and for eddy currents, an increase in frequency provides an increase in these electromotive forces, thereby increasing the sensitivity of the sensor. |
| publisher |
Інститут енергетичних машин і систем ім. А. М. Підгорного Національної академії наук України |
| publishDate |
2018 |
| url |
https://journals.uran.ua/jme/article/view/121480 |
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AT mâgkohlebkb analysisofanelectromagneticeddycurrentsensorofaflawdetectorwithanšshapedcore AT poliŝukof analysisofanelectromagneticeddycurrentsensorofaflawdetectorwithanšshapedcore AT mâgkohlebkb analizélektromagnitnogovihretokovogodatčikadefektoskopasšobraznymserdečnikom AT poliŝukof analizélektromagnitnogovihretokovogodatčikadefektoskopasšobraznymserdečnikom |
| first_indexed |
2025-07-17T12:01:16Z |
| last_indexed |
2025-07-17T12:01:16Z |
| _version_ |
1850411545335431168 |