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Low-frequency magnetic field shielding by a circular passive loop and closed shell
Purpose. To analyze the shielding factors for a circular passive loop and conductive closed shells placed in a homogeneous lowfrequency magnetic field. Methodology. We have obtained simplified expressions for the shielding factors for a circular passive loop and a thin spherical shell. In addition,...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Інститут технічних проблем магнетизму НАН України
2016
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| Series: | Електротехніка і електромеханіка |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/147054 |
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| Summary: | Purpose. To analyze the shielding factors for a circular passive loop and conductive closed shells placed in a homogeneous lowfrequency magnetic field. Methodology. We have obtained simplified expressions for the shielding factors for a circular passive loop
and a thin spherical shell. In addition, we have developed the numerical model of a thin cubical shell in a magnetic field, which allows exploring its shielding characteristics. Results. We have obtained dependences of the shielding factors for passive loops and
shells on the frequency of the external field. Analytically determined frequency of the external magnetic field, below which field
shielding of a passive loop is expedient to use, above which it is advisable to use a shielding shell. |
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