Cargando…
Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments
The relative permeability, coercivity, and remanence of permalloy are closely related to the performance of magnetic shielding devices. In this paper, the relationship between the magnetic properties of permalloy and the working temperature of magnetic shielding devices is measured. Firstly, the mea...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10145743/ https://www.ncbi.nlm.nih.gov/pubmed/37110086 http://dx.doi.org/10.3390/ma16083253 |
_version_ | 1785034410054123520 |
---|---|
author | Sun, Jinji Ren, Jianyi Li, Jin Huang, Yuejing |
author_facet | Sun, Jinji Ren, Jianyi Li, Jin Huang, Yuejing |
author_sort | Sun, Jinji |
collection | PubMed |
description | The relative permeability, coercivity, and remanence of permalloy are closely related to the performance of magnetic shielding devices. In this paper, the relationship between the magnetic properties of permalloy and the working temperature of magnetic shielding devices is measured. Firstly, the measurement method of permalloy properties based on the simulated impact method is analyzed. What is more, a magnetic property test system consisting of a soft magnetic material tester and a high–low temperature chamber for permalloy ring samples at different temperatures was established to measure DC and AC (0.01 Hz to 1 kHz) magnetic properties at different temperatures (−60 °C to 140 °C). Finally, the results show that compared with room temperature (25 °C), the initial permeability ([Formula: see text]) decreases by 69.64% at −60 °C and increases by 38.23% at 140 °C, and the coercivity ([Formula: see text]) decreases by 34.81% at −60 °C and increases by 8.93% at 140 °C, which are the key parameters in the magnetic shielding device. It can be concluded that the relative permeability and remanence of permalloy are positively correlated with temperature, while the saturation magnetic flux density and coercivity are negatively correlated with temperature. This paper is of great significance to the magnetic analysis and design of magnetic shielding devices. |
format | Online Article Text |
id | pubmed-10145743 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-101457432023-04-29 Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments Sun, Jinji Ren, Jianyi Li, Jin Huang, Yuejing Materials (Basel) Article The relative permeability, coercivity, and remanence of permalloy are closely related to the performance of magnetic shielding devices. In this paper, the relationship between the magnetic properties of permalloy and the working temperature of magnetic shielding devices is measured. Firstly, the measurement method of permalloy properties based on the simulated impact method is analyzed. What is more, a magnetic property test system consisting of a soft magnetic material tester and a high–low temperature chamber for permalloy ring samples at different temperatures was established to measure DC and AC (0.01 Hz to 1 kHz) magnetic properties at different temperatures (−60 °C to 140 °C). Finally, the results show that compared with room temperature (25 °C), the initial permeability ([Formula: see text]) decreases by 69.64% at −60 °C and increases by 38.23% at 140 °C, and the coercivity ([Formula: see text]) decreases by 34.81% at −60 °C and increases by 8.93% at 140 °C, which are the key parameters in the magnetic shielding device. It can be concluded that the relative permeability and remanence of permalloy are positively correlated with temperature, while the saturation magnetic flux density and coercivity are negatively correlated with temperature. This paper is of great significance to the magnetic analysis and design of magnetic shielding devices. MDPI 2023-04-20 /pmc/articles/PMC10145743/ /pubmed/37110086 http://dx.doi.org/10.3390/ma16083253 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sun, Jinji Ren, Jianyi Li, Jin Huang, Yuejing Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments |
title | Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments |
title_full | Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments |
title_fullStr | Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments |
title_full_unstemmed | Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments |
title_short | Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments |
title_sort | measurement and analysis of magnetic properties of permalloy for magnetic shielding devices under different temperature environments |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10145743/ https://www.ncbi.nlm.nih.gov/pubmed/37110086 http://dx.doi.org/10.3390/ma16083253 |
work_keys_str_mv | AT sunjinji measurementandanalysisofmagneticpropertiesofpermalloyformagneticshieldingdevicesunderdifferenttemperatureenvironments AT renjianyi measurementandanalysisofmagneticpropertiesofpermalloyformagneticshieldingdevicesunderdifferenttemperatureenvironments AT lijin measurementandanalysisofmagneticpropertiesofpermalloyformagneticshieldingdevicesunderdifferenttemperatureenvironments AT huangyuejing measurementandanalysisofmagneticpropertiesofpermalloyformagneticshieldingdevicesunderdifferenttemperatureenvironments |