This repulsion results in the levitation of the magnet. Media in category videos of superconducting levitation the following 15 files are in this category, out of 15 total. The main aim of the eu h2020 project ecoswing was to demonstrate a technical readiness level of 67 for hightemperature superconducting hts. While playing with liquid nitrogen isnt always practical for athome science experiments, superconductors sure are neat. Superconducting magnetic levitation model train from the ifw dresden, germany. Peizen chang is a professor at national taiwan universitys institute of applied mechanics. A transportation system with highefficiency and largecapacity utilizing potential energy.
Effect of magnetization process on levitation force between a superconducting disk and a permanent magnet l. The replacement of mechanical components by wear free electronics overcomes the technical restrictions of wheelonrail technology. Levitation of a permanent magnet over a hight c superconducting sample is a fascinating demonstration of the magnetic properties of these materials. If the temperature t superconducting solenoid stabilized by the diamagnetism of. Superconducting magnets superconductivity electric. Superconductor bearings, flywheels and transportation. A v shaped superconducting levitation module for lift and guidance of a magnetic transportation system g. Watch a bulk ybco superconductor levitating over a strong magnet array with an amazing levitation height of about 35 mm. Effect of magnetization process on levitation force. Superconducting article about superconducting by the. Two main regimes of the superconducting levitation are typically defined. Magnetic levitation in antiquity and the middle ages pdf. The transportation vehicle is levitated on the magnetic levitation guide. Design considerations and experimental results show the characteristics and performance of this system.
Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even down to near absolute zero, a superconductor has a. A superconductor is a material which conduct an electric current without resistance. Csdk2 demonstration of strong levitation magnetic bearing flywheel easy handling superconducting magnetic top of 0. Quantum levitation booklet for the teacher and instructions manual. The superconducting maglev is an entirely new type of railway that combines the latest technologies in power electronics e. Moon is the author of chaotic and fractal dynamics and superconducting bearings and levitation, and editor of dynamics and chaos in manufacturing processes. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Presents the fundamental principles governing levitation of material bodies by magnetic fields without too much formal theory.
Us5479145a superconducting electromagnet for levitation. The core is a super conducting material which conducts electric current without any resistance at temperatures below minus 180 degrees celsius minus 292 degrees fahrenheit. The authors begin this book with a systematic overview of superconductivity, superconducting materials, magnetic. It employs diamagnetism, which is an intrinsic property of many materials referring to their. Magnetic levitation maglev or magnetic suspension is a method by which an object is. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. Watch the superconductor levitate above the track and suspend below the track, without having to go across. In an applied electric field the free electrons are accelerated. Superconducting magnet for magnetically levitated vehicle. The most important component of maglev transportation is the superconducting magnet on which development was started in 1970, and whose performance has since been continually improved in parallel with the progress of superconducting technology. If you more a conductor towards a magnet you change the amount of magnetic flux in the conductor so you induce a circulating current in a conductor. Quantum levitator the levitators are made of encapsulated superconducting sheets, protected against moisture and physical damage. Levitation of a magnet above a cooled superconductor can been explained by the meissner.
Seminar on maglev trains report free pdf download abstract as the world continues to grow and as cities continue to become more crowded and congested, our normal modes of transportation will not be able to handle these overpopulated areas. Pdf the levitation devices using magnets and superconductors were discussed. In this paper, the unique characteristic will be further investigated from the dynamic aspect. Lanzara transportation area dau, university of laquila, poggio di roio, 67040 laquila, italy article info article history. Levitation force between a small magnet and a superconducting. The authors begin this book with a systematic overview of superconductivity, superconducting materials.
Methods and apparatuses for improved damping in hightemperature superconducting levitation systems are disclosed. T railway technology today 12 edited by kanji wako. Superconductor levitation concepts and experiments chan. Using hight c superconducting materials, one may produce superconducting. Any material exhibiting these properties is a superconductor. Pseudolevitation constrains the movement of the magnets usually using some form of a tether or wall.
Magnetic levitation is an application where superconductors perform extremely well. Switching off the field induces currents in the ideal conductor that prevent. Its atoms arranged in an orthorhombic crystallographic structure a cuboid shaped unit cell. Trains can be made to float on superconducting magnets virtually eliminating friction between the train and its tracks. The answer lies in the properties of typeii superconductors for. Sep 09, 2012 watch a bulk ybco superconductor levitating over a strong magnet array with an amazing levitation height of about 35 mm.
Sep 26, 2010 superconducting levitation of a piece of yttrium barium copper oxide, which becomes superconducting at about 91k so works well at liquid nitrogen temperatures 77k, 196c what is going on. A long primary linear synchronous motor gives the traction. Us7633202b2 damping in hightemperature superconducting. It shows how superconducting magnetic levitation and suspension. Superconductor science and technology is a truly multidisciplinary journal providing an essential forum for members of the superconductivity research community. With our models of superconducting magnetic levitation train sets the uniqueness of the effect of quantum levitation can be demonstrated in a playful and attractive way. Pdf superconductor and magnet levitation devices researchgate. The levitation is done by ybacuo superconducting blocks refrigerated by liquid nitrogen in the presence of ndfeb magnets. A superconducting levitation vehicle prototype sciencedirect. Superconductivity is the set of physical properties observed in certain materials, wherein electrical resistance vanishes and from which magnetic flux fields are expelled. Stable levitation of a permanent magnet above a small and flat superconductor only occurs for typeii superconductors.
The answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. An excitation coil surrounds each pole and is positioned in the gaps on each side of the pole. A classroom demonstration of levitation and suspension of a. Since then repeated tests have confirmed the mlu002s high speed running capability over 300 kmh. A superconducting electromagnet for levitation and propulsion of a maglev vehicle running against a rail has a magnetic core having a number of salient poles extending from a surface thereof, thereby forming gaps between adjacent ones of the poles, and facing and in operative proximity with the rail. The superconductor material is a compound made from yttrium, barium, copper and oxygen, yba2cu3o7x. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. Effect of magnetization process on levitation force between a. Defines the technology of magnetic bearings, especially those based on superconductivity, and demonstrates the key roles that magnetics, mechanics and dynamics play in the complete understanding of magnetic levitation and its bearings. High temperature superconducting magnetic levitation pdf. Check out superconducting levitation thruster on indiegogo.
Superconducting magnetic bearings simulation using an h. Superconducting magnets free download as powerpoint presentation. Maglev development sets a new course for rail transport and is a significant milestone in the 170 years of railway history. Superconducting magnetic bearings with bulks and 2g hts stacks. Certainly levitation occurs when using typei superconductors but in a typeii, the levitation is particular stable and robust.
Applications to bearing and magnetic transportation. Experimenting with a superconducting levitation train. Us5479145a superconducting electromagnet for levitation and. A v shaped superconducting levitation module for lift. It does not matter if for recruiting of students, as an unique attraction for an exhibition or product fair, the. The suspension and levitation of superconductors by permanent magnets is a. Conventional electromagnets waste much of the electrical energy as heat.
Levitation, superconductivity, model train, stability introduction with the upcoming of the hight c superconductors bednorz and muller, 1986 liquid nitrogen as coolant became reality, and so the possibility to demonstrate superconductivity in the classroom. Superconducting levitation experiments naked scientists. Development of a superconducting levitation thrust. T railway technology today 12 edited by kanji wako magnetic. When the onboard superconducting magnets pass at a high speed about several centimeters below the center of these coils, an electric current is induced within the coils, which then acts as electromagnet temporarily. The facility will provide a spacelike frictionfree environment. Anderson and morten ring eskildsen department of phyy,sics, university of notre dame, notre dame, indiana 46656, usa what is a superconductor. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations the two primary issues involved in magnetic levitation are lifting forces. When using superconducting magnets, the levitation of a permanent magnet can even be stabilized by the. Gao department of physics, state key laboratory for artificial microstructure and mesoscopic physics. This characteristic can be applied mainly to superconducting bearings. A transportation vehicle travels at a high speed by potential energy by a level difference on a magnetic levitation guide disposed in a vacuum transportation passage to transport transportation cargoes to a destination location. The levitation force of superconductors can also be understood in terms of a combination of electromagnetic induction and lenzs law. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations.
Superconducting levitation thruster crowdfunding campaign. Helps to explain levitation of superconductor that can can occur in a magnetic field. Superconducting article about superconducting by the free. Selflevitating reactionless thruster, 9 times more powerful than the space shuttle main engine. Magneticlevitation is an application where superconductors perform extremely well. These costs can be adequately met by our fund raising goal of. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even. With this relationship, i will be able to approximate what the lifting and drag forces would be on a coil of superconducting wire inside the moving train. High temperature superconducting magnetic levitation pdf high temperature superconducting magnetic levitation pdf. Received 20 february 2008 received in revised form 6 may 2008 accepted 8. The levitation mechanism of superconducting maglev is. The replacement of mechanical components by wearfree electronics overcomes the technical restrictions of wheelonrail technology.