Volume 26 Issue 5
Aug.  2021
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WANG Lijin, HU Qiang, TENG Jiao, ZHU Fengwu. Analysis of Surface Magnetic Field on High-resolution Magnetic Rotary Encoders and Design for AMR Magnetic Heads[J]. Chinese Journal of Engineering, 2004, 26(5): 498-501,532. DOI: 10.13374/j.issn1001-053x.2004.05.012
Citation: WANG Lijin, HU Qiang, TENG Jiao, ZHU Fengwu. Analysis of Surface Magnetic Field on High-resolution Magnetic Rotary Encoders and Design for AMR Magnetic Heads[J]. Chinese Journal of Engineering, 2004, 26(5): 498-501,532. DOI: 10.13374/j.issn1001-053x.2004.05.012
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Analysis of Surface Magnetic Field on High-resolution Magnetic Rotary Encoders and Design for AMR Magnetic Heads

  • 1. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;

  • 2. State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China

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  • Received Date: March 17, 2004
  • Available Online: August 16, 2021
    Graphical Abstract
    • Abstract
  • Based on the theory of static magnetic field, the surface magnetic field on the high-resolution multi-pole magnetic drum for a magnetic rotary encoder was analyzed. The visual curves of the surface magnetic field distribution were obtained by numerical calculation and plotting. A good AMR magnetic head for the magnetic rotary encoder was designed. The results of theoretical analysis and practical test were contrasted. The results are accorded in the output signal's shape and amplitude of the AMR magnetic head and its multi-frequency characteristic.
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