Impulse Magnetization of Nd-Fe-B Sintered Magnets for Sensors
Magnetization of large Nd-Fe-B sintered permanent magnets is still challenging. This type of permanent magnet is electrically conductive, so impulse magnetization causes a flow of eddy currents which prevent magnetization of the whole volume of the magnet. The paper deals with the impulse magnetizat...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-04-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/16/4/569 |
| _version_ | 1798040266278436864 |
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| author | Marek Przybylski Dariusz Kapelski Barbara Ślusarek Sławomir Wiak |
| author_facet | Marek Przybylski Dariusz Kapelski Barbara Ślusarek Sławomir Wiak |
| author_sort | Marek Przybylski |
| collection | DOAJ |
| description | Magnetization of large Nd-Fe-B sintered permanent magnets is still challenging. This type of permanent magnet is electrically conductive, so impulse magnetization causes a flow of eddy currents which prevent magnetization of the whole volume of the magnet. The paper deals with the impulse magnetization of sintered Nd-Fe-B permanent magnets and shows a method for the determination of suitable parameters for the supply system. The necessary magnetic field strength for magnetization of the magnet to saturation was determined. The optimal magnetizing fixture supply voltage for magnetization to saturation was determined from simulations in PSpice software, finite element analyses in Maxwell 15 and measurements. Measurements of magnetic induction on the surface of the Nd-Fe-B magnet are also presented to ensure that a magnet with 70 mm diameter and 20 mm in height is fully saturated. |
| first_indexed | 2024-04-11T22:05:06Z |
| format | Article |
| id | doaj.art-57f894119b134c37830fdeec4face7c6 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:05:06Z |
| publishDate | 2016-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-57f894119b134c37830fdeec4face7c62022-12-22T04:00:45ZengMDPI AGSensors1424-82202016-04-0116456910.3390/s16040569s16040569Impulse Magnetization of Nd-Fe-B Sintered Magnets for SensorsMarek Przybylski0Dariusz Kapelski1Barbara Ślusarek2Sławomir Wiak3Tele & Radio Research Institute, Ratuszowa 11 St, 03-450 Warsaw, PolandTele & Radio Research Institute, Ratuszowa 11 St, 03-450 Warsaw, PolandTele & Radio Research Institute, Ratuszowa 11 St, 03-450 Warsaw, PolandLodz University of Technology, Institute of Mechatronics and Information Systems, Stefanowskiego 18/22 St, 90-924 Lodz, PolandMagnetization of large Nd-Fe-B sintered permanent magnets is still challenging. This type of permanent magnet is electrically conductive, so impulse magnetization causes a flow of eddy currents which prevent magnetization of the whole volume of the magnet. The paper deals with the impulse magnetization of sintered Nd-Fe-B permanent magnets and shows a method for the determination of suitable parameters for the supply system. The necessary magnetic field strength for magnetization of the magnet to saturation was determined. The optimal magnetizing fixture supply voltage for magnetization to saturation was determined from simulations in PSpice software, finite element analyses in Maxwell 15 and measurements. Measurements of magnetic induction on the surface of the Nd-Fe-B magnet are also presented to ensure that a magnet with 70 mm diameter and 20 mm in height is fully saturated.http://www.mdpi.com/1424-8220/16/4/569Nd-Fe-B permanent magnetspermanent magnetsimpulse magnetizationmagnetic saturationmagnetic inductioncoercivity |
| spellingShingle | Marek Przybylski Dariusz Kapelski Barbara Ślusarek Sławomir Wiak Impulse Magnetization of Nd-Fe-B Sintered Magnets for Sensors Sensors Nd-Fe-B permanent magnets permanent magnets impulse magnetization magnetic saturation magnetic induction coercivity |
| title | Impulse Magnetization of Nd-Fe-B Sintered Magnets for Sensors |
| title_full | Impulse Magnetization of Nd-Fe-B Sintered Magnets for Sensors |
| title_fullStr | Impulse Magnetization of Nd-Fe-B Sintered Magnets for Sensors |
| title_full_unstemmed | Impulse Magnetization of Nd-Fe-B Sintered Magnets for Sensors |
| title_short | Impulse Magnetization of Nd-Fe-B Sintered Magnets for Sensors |
| title_sort | impulse magnetization of nd fe b sintered magnets for sensors |
| topic | Nd-Fe-B permanent magnets permanent magnets impulse magnetization magnetic saturation magnetic induction coercivity |
| url | http://www.mdpi.com/1424-8220/16/4/569 |
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