Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance Calculations
In this paper, the giant magneto-impedance (GMI) model of a cylindrical alloy fiber was established by the Maxwell equation and Landau–Lifshitz equation to simulate the influence of physical parameters of cylindrical alloy fiber on GMI under different control parameters. MATLAB was employed to calcu...
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MDPI AG
2022-09-01
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| Online Access: | https://www.mdpi.com/2075-4701/12/9/1532 |
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| author | Tao Wang Yingjie Zhang Jingtao Lei Qiuyuan Wang Jinbo Chen Hengyu Li Zhizheng Wu Ze Cui Mei Liu Jinjun Rao |
| author_facet | Tao Wang Yingjie Zhang Jingtao Lei Qiuyuan Wang Jinbo Chen Hengyu Li Zhizheng Wu Ze Cui Mei Liu Jinjun Rao |
| author_sort | Tao Wang |
| collection | DOAJ |
| description | In this paper, the giant magneto-impedance (GMI) model of a cylindrical alloy fiber was established by the Maxwell equation and Landau–Lifshitz equation to simulate the influence of physical parameters of cylindrical alloy fiber on GMI under different control parameters. MATLAB was employed to calculate the magneto-impedance of cylindrical fibers and draw its curves. We found that when the anisotropic equivalent field of the fiber changes from 10Oe to 50Oe, the peak position of the GMI ratio also moves from about 10Oe to 50Oe, and the peak value gradually increases from 100% to 300%. The GMI ratio increased rapidly with the decrease in the magnetization damping coefficient. Our findings could further guide the design of supersensitive micro GMI sensors by optimally regulating the magnetic damping coefficient, the angle between the external magnetic field and easy axis and the anisotropic equivalent field of cylindrical alloy fibers. |
| first_indexed | 2024-03-09T23:09:39Z |
| format | Article |
| id | doaj.art-46e9d03bc65b4b65901be938bb7472a7 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T23:09:39Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-46e9d03bc65b4b65901be938bb7472a72023-11-23T17:47:39ZengMDPI AGMetals2075-47012022-09-01129153210.3390/met12091532Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance CalculationsTao Wang0Yingjie Zhang1Jingtao Lei2Qiuyuan Wang3Jinbo Chen4Hengyu Li5Zhizheng Wu6Ze Cui7Mei Liu8Jinjun Rao9School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaGuangzhou Panyu District Health Management Center, Guangzhou 511450, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaSchool of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, ChinaIn this paper, the giant magneto-impedance (GMI) model of a cylindrical alloy fiber was established by the Maxwell equation and Landau–Lifshitz equation to simulate the influence of physical parameters of cylindrical alloy fiber on GMI under different control parameters. MATLAB was employed to calculate the magneto-impedance of cylindrical fibers and draw its curves. We found that when the anisotropic equivalent field of the fiber changes from 10Oe to 50Oe, the peak position of the GMI ratio also moves from about 10Oe to 50Oe, and the peak value gradually increases from 100% to 300%. The GMI ratio increased rapidly with the decrease in the magnetization damping coefficient. Our findings could further guide the design of supersensitive micro GMI sensors by optimally regulating the magnetic damping coefficient, the angle between the external magnetic field and easy axis and the anisotropic equivalent field of cylindrical alloy fibers.https://www.mdpi.com/2075-4701/12/9/1532cylindrical alloy fibergiant magneto-impedanceanisotropic equivalent fieldmagnetic damping coefficient |
| spellingShingle | Tao Wang Yingjie Zhang Jingtao Lei Qiuyuan Wang Jinbo Chen Hengyu Li Zhizheng Wu Ze Cui Mei Liu Jinjun Rao Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance Calculations Metals cylindrical alloy fiber giant magneto-impedance anisotropic equivalent field magnetic damping coefficient |
| title | Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance Calculations |
| title_full | Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance Calculations |
| title_fullStr | Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance Calculations |
| title_full_unstemmed | Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance Calculations |
| title_short | Influences of Anisotropic Equivalent Field and Magnetic Damping Coefficient on Giant Magnetoimpedance Effect of Cylindrical Alloy Fibers: Theoretical Magnetoimpedance Calculations |
| title_sort | influences of anisotropic equivalent field and magnetic damping coefficient on giant magnetoimpedance effect of cylindrical alloy fibers theoretical magnetoimpedance calculations |
| topic | cylindrical alloy fiber giant magneto-impedance anisotropic equivalent field magnetic damping coefficient |
| url | https://www.mdpi.com/2075-4701/12/9/1532 |
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