Halbach array


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Halbach array

[′häl‚bäkə‚rā]
(electromagnetism)
An array of permanent magnets that produces a strong, concentrated, spatially periodic magnetic field; used on the moving object in the Inductrack magnetic levitation system.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In 2017, Boisclair of Laval University in Canada studied a method combining of gravity compensation and the six-dimensional force/torque (F/T) sensor with a cylindrical Halbach array. The cylindrical Halbach array was installed at the joint of an industrial robot and generated joint torque through a magnetic field to compensate the additional torque of the load precisely [19].
Magnetic field exerted by an individual NdFeB52 MGOe segment in the Halbach array for any coordinate can then be found using:
If the strength of a Halbach array is unrestricted, then the magnetic force can be increased simply by using stronger magnets.
[10]) and the magnetic refrigeration system using Halbach array of magnets developed by Tura and Rowe [11] in 2007.4.
Some of the possibilities include V-shape magnet configuration or mounting the magnets in Halbach array, to concentrate the magnetic flux density [19], [20].
Halbach array magnets have been around since their introduction in particle accelerators for the last one or two decades and have already made their way into Nuclear Magnetic Resonance (NMR) spectrometers and Magnetic Resonance Imaging (MRI) systems.
He added that the technology is based on the Halbach Array -- a pattern of magnets which produce their own electrical current and levitation for the Hyperloop capsules -- the next generation of MagLev technology for safe and sustainable transport.
Halbach array is a promising magnet pattern due to its self-shielding property and sinusoidally distributed magnetic field in air space.
In order to solve this problem, a novel design of MSD based on linear Halbach array is proposed for detailed investigation.
A Halbach array of permanent magnets allows an increase of the magnetic field on one side of this assembly while cancelling this field on the other side.
Invented at Lawrence Livermore National Laboratory in California, Inductrack relies on permanent magnets arranged in a Halbach array on the underside of a maglev vehicle.