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Halback Array

If you know about Neodymium magnets or the different types, shapes, and sizes of magnets offered at Radial Magnets, then you may be familiar with the term Halbach Array. But not every magnet user or Neodymium lover knows what this means, which is why we at Radial Magnets are here to answer all of your magnet questions!

What Is A Halbach Array?

To put it simply, a Halbach Array is a formation of permanent magnets, such as Neodymium magnets, that are placed together to create an increase of power on one end of the array which in turn produces a decrease on the other.

Understanding Halbach Arrays

Halbach Arrays have advantages, such as the ability to increase a side of a configuration of Neodymium magnets through the process of cancelling another side out. Depending on the arrangement, more power can be conducted on an end of the array. For example, if two sections are placed in an arrangement above one section, then the power of the above ones will amplify. This effect only occurs in a Halbach Array due to the significant decrease in strength of the below end of the array.

When are Halbach Arrays Used?

Although there is not always a need to use Halbach Arrays, these arrangements of greater and less magnetic power can be of use. It can be great for producing double the power of force and strength for magnetic projects and creations.

What Are the Advantages of A Halbach Array?

Halbach Arrays hold several benefits, including the fact that one end of the magnets conducts a far higher magnetic field of power. It can be necessary to double the strength of a row of magnets, but of course it will weaken the power of the permanent Neodymium magnets on the opposite end of the array. Halbach Arrays have the ability to make a power as strong as an electromagnet. The benefit in going with the Halbach Array for the magnetic power of one side of the array over an electromagnet is that the size is smaller, cost is less, and it’s easier to keep going.

What Are Some Drawbacks of the Halbach Array?

Besides the cons of the Halbach Array including a magnetic force reduction on one end of an arrangement, Halbach Arrays can also be seen as disadvantageous because of the requirement to set up and level of difficulty in doing so. The Halbach Array needs to be placed in the magnetic conducting order with one or more arrangements on one end and another array on the opposite end. Magnetic properties involved in assembly go against one another. This has the potential to be a cause of several problems. These can involve having to place the magnets back in order or rearrange, going against repelling power of magnets, and carefully keeping the lineup intact in order to produce the results of the Halbach Array.

What Are Circular Halbach Arrays?

Circular Halbach Arrays are where the arrangement is placed in a circular formation. In a Circular Halbach Array, the directions of the magnets are not only facing two different directions to conduct more and less power, but several. Each magnet can be placed in an alternating direction to change the power conducted.

History of Halbach Arrays

In 1973, the effect of this arrangement of magnets was actually found by John C. Mallinson. It wasn’t until later in the 1980s that Dr. Klaus Halbach was credited with his separate individual discovery of what was later coined with the term the Halbach Array.

Using our Neodymium magnets for purchase at Radial Magnets, you can form your own circular or linear Halbach Array for experimentation and to conduct additional power for projects. The ideas are endless when it comes to the use for Neodymium magnets, and each buyer of our products is sure to be satisfied with the strength of our magnets.