Remanence or remanent magnetisation or residual magnetism is the magnetisation left behind in a ferromagnetic material (such as iron) after an external magnetic field is removed. Colloquially, when a magnet is “magnetised” it has a remanence.
A neodymium alloy
During the stages of manufacturing a magnet, when the magnetic alloy has the desired dimensions, it must be subject to an external magnetic field to become a magnet. This external magnetic field, produced by an electric coil, is much greater than the one that the future magnet will process. Submitted to this powerful external field, the greater the remanence of the magnetic material, the more it will retain a large part of the magnetic field for an unlimited time. The neodymium iron and boron alloy, due to its particular crystalline structure, is the most efficient, with the best remanence.
The right power for the magnetic-therapy
In Magnetic therapy, the ideal remanence is 12,200 Gauss. It is the one which, with experiences, best reconciles the strength of the magnet and its ease of use. And if we add the design and the titanium coating patented by Auris, Medimagnet are, undoubtedly, the best therapeutic magnets in the world.
