Magnetic levitation is the use of magnetic fields to levitate a usually metallic object. Current projects nclusion introduction maglev, or magnetic levitation, is a system of transportation that suspends, guides. Us20080182634a1 magnetic levitation sliding structure. They push and pull certain materialsand can even make them levitatewithout touching them at all, but they seem to leave other materials entirely alone. This current then induces a magnetic field that levitates the train. As you can see, its currently a magnetic pull instead of the familiar push levitation but research continues. The motivation of this paper is to design and fabrication a cost effective magnetic levitation shortly called maglev system using plc. Manipulating magnetic fields and controlling their forces can levitate an object. It is detected by the force it exerts on other magnetic materials and moving electric charges. The ball elevation from the post is measured using a sensor embedded in the post.
An assembled magnetic levitation system mechanical project earnshaw s theorem proves that using only static ferromagnetism it is impossible to stably levitate against gravity, but servomechanisms, the use of diamagnetic materials, super conduction, or systems involving eddy currents permit this to occur. Abstractlowcost magnetic levitation project kits are used. The magnetic levitation system is a nonlinear dynamic system with one input and one output. I really had a lot of fun with this project and i am so happy with how it turned out. Repulsive magnetic levitation using arduino simple. Submitted to the 2004 american control conference 1 low. 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. Magnetic levitation is the most commonly seen and used form of levitation. If you click in the space between the magnetic coil and the bottom plate, vrml sensor is updated and its value is read into simulink model using the vr source block. Project model fig 4 general arrangement of magnetic levitation. Physics project on magnetic levitation and its applications.
As a result, diamagnetic materials are repelled by strong magnetic fields. Magnetic levitation projects have long been used in control systems laboratories 5, 6. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. This signal is fed back through a levitation constant that is defined by properties of the levitation halbach array and the track design. Projectneutral design principles have been drafted for highspeed maglev systems and their individual. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Integrating every usable portion of the vb6 extensibility interface, all pieces of the ide and your projects are gathered in one place with customizable views. Pdf design and construction of a magnetic levitation system. Designed an inexpensive magnetic levitation gadget. Have the kids attach four of the ring magnets to a flat surface with some modeling clay.
Hence, off i go creating a simple pull type magnetic levitation project. These projects are appropriate for lab stations and hobbyists, but they require custom construction of the electromagnet and dissipate considerable power needing large heat sinks. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. For example, a superconducting sample, which can be considered either as a perfect diamagnet or an ideally hard superconductor, easily levitates in an ambient. Recently, engineers have used magnets to create maglev short for magnetic levitation trains. The digital control loop is a pid algorithm that modulates a pwm output to energize the electromagnet through a mosfet. A magnetic field is a field of force produced by a magnetic object or particle, or by a changing electrical field. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. In the past, magnetic levitation was attempted by using permanent magnets.
Maglev 1 magnetic levitation experiment quanser consulting inc. The input voltage is applied to a coil that creates the electromagnetic field. My next plan is to make something similar to levitron, a push type magnetic levitator. In order to get feedbackresponse to the sensor fast enough, he made some key changes to the arduino ides serial library. Simple maglev magnetic levitation electrical projectlevitation by means of opposing magnets. The objectives of this project are to design and fabricate. In this process an object is suspended above another with no other support but magnetic fields. Magnetic levitation is a highly advanced technology. Magnetic levitation is a popular application for teaching control theory. Either the magnetic force of repulsion or attraction can be used. With respect to the second criterion, congress titled section 7 deployment of magnetic levitation transportation projects and the funding provided through section 1101a18 of safetealu, as amended by the 2008 act, is made available for the deployment of magnetic levitation projects. One electromagnet pole faces a black post upon which a 2. These maglev trains use the attractive and repellant nature of magnets to levitate or float above the tracks. More info plus discussion in the comments of the relevant projects blog entry.
In a magnetic levitating train the rails and the train must repel each other. Putting it more precisely, he proved that it is not possible. Controller design for a magnetic levitation kit using. With maglev, a vehicle is levitated a short distance away from a.
Magnetic levitation simple electrical project electrical. The first magnet push or repel the train up of the train track while the second magnet set move the elevated train ahead in a smooth way as their is no friction involved in the system. Magnetic levitation fascinates me since i was a child. Recently, i finished my first arduino project, a magnet levitation device. I use a single hall effect sensor placed directly on the bottom of the core of the electromagnet. Abstractlowcost magnetic levitation project kits are used in teaching system design in an introductory undergraduate control systems course. The magnetic levitation technology can be used as an efficient technology in. Magnets are used in a wide variety of household objects, including headphones, televisions, computer disks, and refrigerator magnets.
Pdf magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise. First, the trains velocity induces a current in the track. Download the seminar report for magnetic levitation. Guy marsdens levitation kit is built on a single fan controller chip the best. Federal register notice of funding availability and. Magnetic levitation project software free download. For this purpose a stand, a 12 volt electromagnet, eddy current displacement sensor which input voltage is 24 volt and output voltage range is 0 to 10 volt for 0 to 10 mm displacement, siemens logo plc setup board including cpu, cable, analog expansion module. Magnetic levitation system in control engineering education 155 the steps necessary to obtain the executable file from a controller model are shown in fig. Open example a modified version of this example exists on your system. Magnetic levitation project, free magnetic levitation project software downloads, page 2. This book provides a comprehensive overview of magnetic levitation maglev technologies, from fundamental principles through to the stateoftheart, and describes applications both realised and. Using magnetic repulsion, it becomes magnetic levitation. Electromagnetic levitator an electromagnet creates a magnetic field that attracts a hollow steel globe or similar object upward.
This increases efficiency, reduces maintenance costs, and increases the useful life of the system. The maglev transportation system is more stable for levitation of vehicle by utilizing lead. Diamagnetic materials have the interesting characteristic that they make magnetic levitation possible. The student is expected to design an experiment to test the effect of force on an object. It is sometimes said to be the first fundamental innovation in the field of railroad technology since the invention of the railway. Video features complete project build from start to finish3d printing, project assembly, final demo, and blender render. Maglev 11 coil which causes the ball to jump up to the magnet and stay there. Make sure the magnets are spaced an equal distance apart and have the same polarity facing up. Lowcost magnetic levitation project kits for teaching feedback. This video was created for the cullen college of engineering at the university of houston by mechanical engineering capstone team.
Its possible and actually not too difficult to make. The control settings and output can be displayed and controlled via a python tkinter interface. Projet design principles highspeed maglev system eisenbahn. Review of magnetic levitation magleva technology to propel vehicles with. Design and construction of a magnetic levitation system. The main component of this magnetic levitating train is a strip of strong plastic magnet.
Pdf magnetic levitation is a way of using electromagnetic fields to. The common point in all applications is the lack of contact and thus no wear and friction. Unlike a conventional motor, a linear motor creates linear motion instead of circular motion. A maglev train levitates above the ground and is propelled at speeds of up to 300 miles per hour by powerful superconducting electromagnets. A simple project to demonstrate magnetic levitation uses six ring magnets, a pencil and some modeling clay. For details on how the signals are measured and transferred to the pc, refer to. Notice of funding opportunity for magnetic levitation. The real time operating system is running on the tiva board, ensuring that every 140 us 7.
Adjust the gain potentiometer on the maglev to obtain anywhere between 4. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed. Magnetic levitation, maglev, or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. These projects require custom winding of the solenoid, and they dissipate considerable power. Discover how maglev trains work using magnetic levitation. Magnetic levitation driving without wheels presentation outline 1. Digital levitation electromagnetic levitation, electromagnetic suspension and levitation techniques. Magnetic levitation simple english wikipedia, the free. For this project we will need a controller circuit, a power source, an em coil and a magnet along with the hardware and tools to put it all together. If you continue browsing the site, you agree to the use of cookies on this website.
Mechatronics magnetic levitation control experiments test. It levitates a magnetic object under an electromagnet. The maglev experiment consists of an electromagnet encased in a rectangular enclosure. Many of the questions asked in the magnet levitation projects, can serve as the problem to be solved in a science project.
Magnetic levitation experiment nyu tandon school of. This was proven by a scientist named samuel earnshaw in the appropriately named earnshaws theorem. It employs diamagnetism, which is an intrinsic property of many materials referring to their ability to temporarily expel a portion of an external magnetic field. A high speed maglev train uses noncontact magnetic levitation, guidance and propulsion systems and has no. Levitation system the propulsion system used is known as a linear motor. The suspended ball is a permanent magnet whose distance from the electromagnet is measured by a hall effect sensor placed under the coil. Magnetic levitation project systems have long been used in control systems laboratories 4, 5, textbook examples 6, 7, and hobbyist construction articles 8, 9. As mentioned above, the major principle behind its operation is magnetic repulsion. Modeling and control of a magnetic levitation system concepts emphasized.
The globe doesnt crash against the magnet, however. In other words, it is overcoming the gravitational force on an object by applying a counteracting magnetic field. In this science fair project, you will conduct a simple magnetic levitation experiment and test a number of materials to see if they have any magnetic shielding effect on the magnets field. Magnetic levitation principles introduction magnetic fields are used to describe forces at a distance from electric currents. Mechanical project on magnetic levitation download report pdf. Students receive individual kits along with assembly instructions for building a magnetic levitation device that is marginally stable, and they are then challenged to modify the system to improve. In this video you will learn how to make arduino based repulsive magnetic levitation device using single electromagnet coil, hall sensor, and magnets. The name maglev is derived from magnetic levitation.
Magnetic levitation control experiments magnetic levitation set description the description of the maglev setup in this section refers to the mechanicalelectrical part and the control aspect. Dynamic modeling, timedomain analysis, pi and pid feedback control. Attempts were made to find the correct arrangement of permanent magnets to levitate another smaller magnet, or to suspend a magnet or some other object made of a ferrous material. Diamagnetic materials are commonly used for demonstration purposes. What makes it different from similar projects is the position sensor for the feedback loop. Experimenting with maglev models and other magnetic levitation. Magnetic levitation real time control system running on a tiva tm4c123g microcontroller. Magnetic pressure is used to counteract the effects of the gravitational and any other activities. Magnet or magnetic levitation is a system of two sets magnets used for maglev train transportation. As it turns out, it is not possible to levitate a magnet just using other magnets. Magnetic levitation maglev is an innovative transportation technology. Doubleclick the magnetic levitation plant model to open this subsystem.
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