Linear Halbach Arrays

Halbach Array

Linear Halbach Arrays
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Linear Halbach Arrays
Linear Halbach Arrays
Linear Halbach Arrays
Linear Halbach Arrays
Halbach Array
   A Halbach array is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side. This is achieved by having a spatially rotating pattern of magnetisation.
  Halbach array can double the power of the magnets. This particular arrangement of the magnets, bound by means of glue allows to almost double the magnetic field from an array side while the other side the magnetic field is almost zero. The array of Halbach find practical applications in the maglev train and in particle accelerators.
1. Materials
Magnet: Neodymium Magnet 
Hardware part: 20# steel, martensitic stainless steel 

2. Application
Linear Halbach arrays: 
Such as the brushless AC motor, voice coils, magnetic drug targeting to high-tech applications such as wiggler magnets which are used in Particle acceleratorsand Free-electron lasers.
Halbach cylinder:
Such as brushless AC motors, magnetic couplings and high field cylinders. Both brushless motors and coupling devices use multipole field arrangements. 


Linear Halbach Array for Magnetic Ore Separator Project
  • Project Details Link:
  • Application:                Magnetic Ore Separator
  • Total area:                   0.96㎡ for each magnetic plate
  • Project Test Result:   1.Surface magnetic feild is 7500Gs   
  •                                      2.The effective magnetic separation area is over 83%
  •                                      3.1.6mm away from the surface, the surface magnetic field has 4900Gs
  •                                      4.Ore yield more than 60%
  •                                      5.Grade of raw mineral is 21.8%, after testing, the grade of ore is 43%​                              
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