Halbach Array
Halbach Array
Halbach Array is most commonly used to produce a magnetic field utilizing permanent magnets arranged in a 90° orientation change between magnetic elements, which amplifies the magnetic force.
Shape: Custom
Dimension: Custom
Grade: Custom
A Halbach array is a special arrangement of permanent magnets that makes the magnetic field on one side of the array stronger, while canceling the field to near zero on the other side. This is very different from the magnetic field around a single magnet. With a single magnet, you have an equal strength magnetic field on either side of the magnet.
Applications:
-Planer Halbach Arrays are typically used for holdings, fixturing, linear coupling applications, etc.
-Circular Halbach Arrays (OD iteration) can be used in rotors for brushless DC motors, magnetic couples, power generations, etc.
-Circular Halbach Arrays (ID iteration) are used to constrain plasma, steer, sort and accelerate moving charged particles, and impart oscillations
What should be considered in a Halbach Array design?
-Operational Environment: temperature, rotation speed, liquids or gasses
-External demagnetizing fields: important for rotors
-Cost
-Lifetime
-Available room for the arrays
-Size: Halbach Arrays are assemblage of magnets, their attracting and repelling each other should be considered.
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