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2. Electromagnetic shielding - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_shielding

   Electromagnetic shielding is the process of lowering the electromagnetic field in an area by barricading it with conductive or magnetic material. Copper is used for radio frequency (RF) shielding because it absorbs radio and other electromagnetic waves. Properly designed and constructed RF shielding enclosures satisfy most RF shielding needs ...

3. Eddy current brake - Wikipedia

   en.wikipedia.org/wiki/Eddy_current_brake

   The brake does not work by the simple attraction of a ferromagnetic metal to the magnet. See the diagram at right. It shows a metal sheet (C) moving to the right under a magnet. The magnetic field (B, green arrows) of the magnet's north pole N passes down through the sheet. Since the metal is moving, the magnetic flux through

4. Halbach array - Wikipedia

   en.wikipedia.org/wiki/Halbach_array

   A Halbach array ( German: [ˈhalbax]) is a special arrangement of permanent magnets that augments the magnetic field on one side of the array while cancelling the field to near zero on the other side. [1] [2] This is achieved by having a spatially rotating pattern of magnetisation. The rotating pattern of permanent magnets (on the front face ...

5. Superconducting magnet - Wikipedia

   en.wikipedia.org/wiki/Superconducting_magnet

   Schematic of a 20-tesla superconducting magnet with vertical bore. A superconducting magnet is an electromagnet made from coils of superconducting wire. They must be cooled to cryogenic temperatures during operation. In its superconducting state the wire has no electrical resistance and therefore can conduct much larger electric currents than ...

6. Electromagnetic forming - Wikipedia

   en.wikipedia.org/wiki/Electromagnetic_forming

   Electromagnetic forming. A pinched aluminium can, produced from a pulsed magnetic field created by rapidly discharging 2 kilojoules from a high-voltage capacitor bank into a 3-turn coil of heavy gauge wire. Electromagnetic forming ( EM forming or magneforming) is a type of high-velocity, cold forming process for electrically conductive metals ...

7. Ferromagnetism - Wikipedia

   en.wikipedia.org/wiki/Ferromagnetism

   Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. Ferromagnetic materials are noticeably attracted to a magnet, which is a consequence of their substantial ...