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SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP
The magnetic and electromagnetic shields are used to reduce the magnetic field in local spaces. Usually these shields are implemented in the form of a box or a cylinder. At the same time the magnetic field reduction in local spaces by means of passive loops is not considered in detail yet. So, the p...
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National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine”
2015
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Online Access: | http://eie.khpi.edu.ua/article/view/2074-272X.2015.2.06 |
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eiekhpieduua-article-420812016-03-09T07:43:40Z SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP ЭКРАНИРОВАНИЕ ОДНОРОДНОГО ПЕРЕМЕННОГО МАГНИТНОГО ПОЛЯ ЭЛЕКТРОПРОВОДЯЩИМ КОЛЬЦОМ ЭКРАНИРОВАНИЕ ОДНОРОДНОГО ПЕРЕМЕННОГО МАГНИТНОГО ПОЛЯ ЭЛЕКТРОПРОВОДЯЩИМ КОЛЬЦОМ Grinchenko, V. S. Chunikhin, K. V. circular passive loop electromagnetic shielding analytical modeling Comsol Multiphysics 621.3.013 электропроводящее кольцо электромагнитное экранирование аналитическое моделирование Comsol Multiphysics 621.3.013 електропровідне кільце електромагнітне екранування аналітичне моделювання Comsol Multiphysics 621.3.013 The magnetic and electromagnetic shields are used to reduce the magnetic field in local spaces. Usually these shields are implemented in the form of a box or a cylinder. At the same time the magnetic field reduction in local spaces by means of passive loops is not considered in detail yet. So, the present study considers shielding capabilities of a circular passive loop. The authors have performed an analytical and numerical modeling of a process of a uniform harmonic magnetic field shielding. The simulated results permit to find out the spatial distribution of the shielded magnetic field. Dependencies of shielding effectiveness on the passive loop radius and cross-section are determined. Moreover, the non-monotonic behavior of the loop radius dependence is shown. We have substantiated that the shielded volume of a circular passive loop is advisable to limit by the sphere with a half loop radius. Presented results give parameters of the circular passive loop that reduces the rms value of the magnetic flux density by 30 %. Путем аналитического и численного моделирования исследована эффективность экранирования однородного гармонического магнитного поля при помощи электропроводящего кольца. Установлены зависимости коэффициента экранирования от радиуса кольца и его поперечного сечения. Определены параметры электропроводящего кольца, применение которого позволяет снизить действующее значение магнитной индукции на 30 %. Шляхом аналітичного та чисельного моделювання досліджено ефективність екранування однорідного гармонійного магнітного поля за допомогою електропровідного кільця. Встановлено залежності коефіцієнту екранування від радіуса кільця та його поперечного перерізу. Визначено параметри електропровідного кільця, застосування якого дозволяє знизити діюче значення магнітної індукції на 30 %. National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” 2015-04-28 Article Article application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2015.2.06 10.20998/2074-272X.2015.2.06 Electrical Engineering & Electromechanics; No. 2 (2015); 31-34 Электротехника и Электромеханика; № 2 (2015); 31-34 Електротехніка і Електромеханіка; № 2 (2015); 31-34 2309-3404 2074-272X ru http://eie.khpi.edu.ua/article/view/2074-272X.2015.2.06/38513 Copyright (c) 2015 V. S. Grinchenko, K. V. Chunikhin https://creativecommons.org/licenses/by-nc/4.0 |
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circular passive loop electromagnetic shielding analytical modeling Comsol Multiphysics 621.3.013 электропроводящее кольцо электромагнитное экранирование аналитическое моделирование Comsol Multiphysics 621.3.013 електропровідне кільце електромагнітне екранування аналітичне моделювання Comsol Multiphysics 621.3.013 |
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circular passive loop electromagnetic shielding analytical modeling Comsol Multiphysics 621.3.013 электропроводящее кольцо электромагнитное экранирование аналитическое моделирование Comsol Multiphysics 621.3.013 електропровідне кільце електромагнітне екранування аналітичне моделювання Comsol Multiphysics 621.3.013 Grinchenko, V. S. Chunikhin, K. V. SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP |
topic_facet |
circular passive loop electromagnetic shielding analytical modeling Comsol Multiphysics 621.3.013 электропроводящее кольцо электромагнитное экранирование аналитическое моделирование Comsol Multiphysics 621.3.013 електропровідне кільце електромагнітне екранування аналітичне моделювання Comsol Multiphysics 621.3.013 |
format |
Article |
author |
Grinchenko, V. S. Chunikhin, K. V. |
author_facet |
Grinchenko, V. S. Chunikhin, K. V. |
author_sort |
Grinchenko, V. S. |
title |
SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP |
title_short |
SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP |
title_full |
SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP |
title_fullStr |
SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP |
title_full_unstemmed |
SHIELDING OF A UNIFORM ALTERNATING MAGNETIC FIELD USING A CIRCULAR PASSIVE LOOP |
title_sort |
shielding of a uniform alternating magnetic field using a circular passive loop |
title_alt |
ЭКРАНИРОВАНИЕ ОДНОРОДНОГО ПЕРЕМЕННОГО МАГНИТНОГО ПОЛЯ ЭЛЕКТРОПРОВОДЯЩИМ КОЛЬЦОМ ЭКРАНИРОВАНИЕ ОДНОРОДНОГО ПЕРЕМЕННОГО МАГНИТНОГО ПОЛЯ ЭЛЕКТРОПРОВОДЯЩИМ КОЛЬЦОМ |
description |
The magnetic and electromagnetic shields are used to reduce the magnetic field in local spaces. Usually these shields are implemented in the form of a box or a cylinder. At the same time the magnetic field reduction in local spaces by means of passive loops is not considered in detail yet. So, the present study considers shielding capabilities of a circular passive loop. The authors have performed an analytical and numerical modeling of a process of a uniform harmonic magnetic field shielding. The simulated results permit to find out the spatial distribution of the shielded magnetic field. Dependencies of shielding effectiveness on the passive loop radius and cross-section are determined. Moreover, the non-monotonic behavior of the loop radius dependence is shown. We have substantiated that the shielded volume of a circular passive loop is advisable to limit by the sphere with a half loop radius. Presented results give parameters of the circular passive loop that reduces the rms value of the magnetic flux density by 30 %. |
publisher |
National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” |
publishDate |
2015 |
url |
http://eie.khpi.edu.ua/article/view/2074-272X.2015.2.06 |
work_keys_str_mv |
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first_indexed |
2024-06-01T14:37:58Z |
last_indexed |
2024-06-01T14:37:58Z |
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