Small disc neodymium iron boron strong magnet, although small in size, but has extremely strong magnetic energy. Therefore, Small super strong neodymium magnet are often used in the interior of small products, such as: the magnetic suction buckle of the bag, cell phone vibration machine, magnetic induction switch and so on.
Neodymium-iron-boron (NdFeB) is a new type of permanent magnet material developed after 1983, which has high magnetic properties and is nowadays a permanent magnet with strong magnetic properties, and also a magnet commonly used in the market nowadays.
Heilbeck magnets array is a magnet structure, in 1979 the American scholar Klaus Halbach to do electron acceleration experiments discovered this special permanent magnet structure and gradually improved, and finally formed the so-called "Halbach" magnets, it is the engineering of the approximate ideal structure, which uses a special arrangement of the magnet unit to enhance the field strength per unit direction, the goal is to use the smallest number of magnets to produce the strongest magnetic field.
