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  2. Magnetic levitation - Wikipedia

    en.wikipedia.org/wiki/Magnetic_levitation

    Diamagnetism is the property of an object which causes it to create a magnetic field in opposition to an externally applied magnetic field, thus causing the material to be repelled by magnetic fields. Diamagnetic materials cause lines of magnetic flux to curve away from the material. Specifically, an external magnetic field alters the orbital ...

  3. Magnetic bearing - Wikipedia

    en.wikipedia.org/wiki/Magnetic_bearing

    A magnetic bearing. A magnetic bearing is a type of bearing that supports a load using magnetic levitation. Magnetic bearings support moving parts without physical contact. For instance, they are able to levitate a rotating shaft and permit relative motion with very low friction and no mechanical wear. Magnetic bearings support the highest ...

  4. Spin-stabilized magnetic levitation - Wikipedia

    en.wikipedia.org/wiki/Spin-stabilized_magnetic...

    Spin-stabilized magnetic levitation is a phenomenon of magnetic levitation whereby a spinning magnet or array of magnets (typically as a top) is levitated via magnetic forces above another magnet or array of magnets, and stabilised by gyroscopic effect due to a spin rate that is neither too fast, nor too slow to allow for a necessary precession.

  5. Electromagnetic suspension - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_suspension

    An active magnetic bearing (AMB) works on the principle of electromagnetic suspension and consists of an electromagnet assembly, a set of power amplifiers which supply current to the electromagnets, a controller, and gap sensors with associated electronics to provide the feedback required to control the position of the rotor within the gap ...

  6. Levitation (physics) - Wikipedia

    en.wikipedia.org/wiki/Levitation_(physics)

    A magnetically levitated (maglev) train departing Shanghai Pudong International Airport on the first commercial high-speed maglev line in the world. Magnetic levitation is in development for use for transportation systems. For example, the Maglev includes trains that are levitated by a large number of magnets. Due to the lack of friction on the ...

  7. Electrodynamic suspension - Wikipedia

    en.wikipedia.org/wiki/Electrodynamic_suspension

    In the 1950s, a technique was developed where small quantities of metal were levitated and melted by a magnetic field of a few tens of kHz. The coil was a metal pipe, allowing coolant to be circulated through it. The overall form was generally conical, with a flat top. This permitted an inert atmosphere to be employed, and was commercially ...

  8. Diamagnetism - Wikipedia

    en.wikipedia.org/wiki/Diamagnetism

    Diamagnets may be levitated in stable equilibrium in a magnetic field, with no power consumption. Earnshaw's theorem seems to preclude the possibility of static magnetic levitation. However, Earnshaw's theorem applies only to objects with positive susceptibilities, such as ferromagnets (which have a permanent positive moment) and paramagnets ...

  9. Barkhausen effect - Wikipedia

    en.wikipedia.org/wiki/Barkhausen_effect

    The Wiegand effect is a macroscopic extension of the Barkhausen effect, [2] as the special treatment of the Wiegand wire causes the wire to act macroscopically as a single large magnetic domain. The numerous small high-coercivity domains in the Wiegand wire outer shell switch in an avalanche, generating the Wiegand effect's rapid magnetic field ...