College Physics ›› 2017, Vol. 36 ›› Issue (1): 37-40.doi: 10.16854 /j.cnki.1000-0712.2017.01.012

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Basic principles of magnetic levitation and overview on their implements

DONG Jin-wen1,2,ZHANG Kun-lun1,2, JING Yong-zhi1,2   

  1. 1. Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle,Ministry of Education,Chengdu,Sichuan 610031,China;  2. School of Electrical Engineering,Southwest Jiaotong University,Chengdu,Sichuan 610031,China
  • Received:2016-04-15 Revised:2016-06-02 Online:2017-01-20 Published:2017-01-20
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Abstract: Earnshow theorem and Braunbeck idea are two basic principles of magnetic levitation system. Their contents and scope of application are introduced.The prime stability judgment of magnetic levitation system from the basic principles is listed. According to this judgment,eight kinds of magnetic levitation systems are discussed which are classified by implement materials,physical principles and characteristic. Finally it is pointed out that each kind of magnetic levitation system has different value and prospect in application.

Key words: magnetic levitation, principles, implements

CLC Number: 

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