Feb 19, 2014 an exciting science experiment for kids of all ages. Abstractlowcost magnetic levitation project kits are used in teaching system design in an introductory undergraduate control systems course. From the ones on the fridge, the speakers in your car, and propelling high speed trains, magnets are being used constantly. Mary dillon researched problemsolution proposal topic. Have the kids attach four of the ring magnets to a flat surface with some modeling clay. In this process an object is suspended above another with no other support but magnetic fields. A simple levitation system using wireless power supply. The maglev experiment consists of an electromagnet encased in a rectangular enclosure. 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. On the top edge of the jig there is a knob and screw which attach to a magnet below the top crossbar.
This paper proposed a new magnetic levitation system using realtime control simulink feature of simlab microcontroller. The device shown above is an actively controlled magnetic levitator. Magnetic fields are produced by electric currents or even electric fields that vary by time. Magnetic levitation is the use of magnetic fields to levitate a usually metallic object. Maglev train 5th grade science fair project science fair. Simple maglev magnetic levitation electrical project levitation by means of opposing magnets. Magnetic force is used to counteract the effects of the gravitational acceleration and any other accelerations. This experiment employs a similar system which involves using system of leds lightemitting diode and photoresistors which act as sensors to operate the electromagnets that are laid out on along the magnetic levitation track, which acts as the propulsion system.
Photograph of experimental magnetic levitation system a and pm materials b. 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. The objective of the experiment is to design a controller that levitates the steel. What is the theory behind this magnetic levitation experiment. Magnetic levitation theory and application based on levitation such as train,toy,turbine etc. The \maglev experiment is a magnetic ball suspension system which is used to.
The bigger magnet at bottom have an opposite polarity to the magnetic spinning top. 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. Magnetic levitation on a typei superconductor as a practical. In this type, to acquire large magnetic force of rotor, magnetic saturation of. This project is a continuation of work done by paul friend in 2004. The globe doesnt crash against the magnet, however.
The findings showed an agreement for both simulation and experiment results. Attempts were made to find the correct arrangement of permanent magnets to. The ball elevation from the post is measured using a sensor embedded in. Along certain mediumrange routes usually 320 to 640 km 200 to 400 mi, maglev can compete favorably with highspeed rail and airplanes. Make sure the magnets are spaced an equal distance apart and have the same polarity facing up. Submitted to the 2004 american control conference 1 lowcost. The middle crossbar is a graphite plate holder and separates the lifter magnet from the floater magnet. Simple maglev magnetic levitation electrical projectlevitation by means of opposing magnets. The spinning top would had turned upside down if the guy wasnt there to hold it in that direction. Magnetic levitation is the process of levitating an object by exploiting magnetic fields. Magnetic levitation belongs to wellknown type of systems.
Magnetic levitation science experiment crazyrussianhacker. These experiments have teaching purposes and combine. The experiment contrasts and illustrates the case of magnetic levitation with high temperature typeii superconductors using liquid nitrogen. The goal of the magnetic levitation train maglev project is to develop a small scale magnetic levitation train based on inductrack technology developed by dr. Electromagnetic levitator an electromagnet creates a magnetic field that attracts a hollow steel globe or similar object upward. Simple magnetic levitation train seminar reportpdf ppt. Magnetic levitation is a technique widely used to create noncontact bearings. Tutorial and experiments on magnetic levitation the signal path.
Maglev derived from magnetic levitation uses magnetic levitation to propel vehicles. In the case of magnetic attraction, the experiment is known as magnetic suspension. 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. An exciting science experiment for kids of all ages. The position information can easily be differentiated to acquire the speed information required. The two forces cancel and the object remains suspended. Digital levitation electromagnetic levitation, electromagnetic suspension and levitation techniques. Magnetic levitation control system in stand alone analogue mode recall that the considered equipment is with a builtin power supply and in the analogue mode is capable of standalone. Electromagnets and superconducting magnets have allowed us to create a magnetic levitation train nicknamed maglev that floats on the track instead of being directly on it. Magnetic levitation technology has shown a great deal of promise for.
Magnetic levitation experiment the power amplifier electromagnetic force model the position sensor ad converter. Slideshare uses cookies to improve functionality and. The magnetic levitation experiment, or for short maglev, consists of an electromagnet, a ball and a post encased in a rectangular enclosure as shown in figure 1. Magnetic levitation is a way of using electromagnetic fields to levitate objects without any noise.
One electromagnet pole faces a black post upon which a 2. Such bearings eliminate friction and wear and also allow for operation at high speeds or in special environments such as vaccum systems. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed. Magnetic levitation is a way to suspend objects in air without any support, as if in defiance of gravity. By combining equations 30 and 31, the following can be obtained.
A maglev train levitates above the ground and is propelled at speeds of up to 300 miles per hour by powerful superconducting electromagnets. A free powerpoint ppt presentation displayed as a flash slide show on id. Pdf the objective of this work is to present two magnetic levitation experiments developed by the. T railway technology today 12 edited by kanji wako. T railway technology today 12 edited by kanji wako magnetic.
In its first offering, over 40% of the class chose to construct the magnetic levitator. Magnetic levitation experiment the power amplifier electromagnetic force model the position sensor. Superconducting magnets, created by cooling electromagnets to low temperatures, can reduce power consumption and cost. When a magnetic field is applied to it stick a magnet to it or near it, the field channels through the steel, making the steel act like a magnet as long as that magnet is there.
Pdf development of levitation experiments for teaching purposes. Observer based controller for magnetic levitation system. Maglev derived from magnetic levitation uses magnetic. In this process an object is suspended above another with. For stable levitation, an equilibrium requires that the magnetic force mb8z compensates the gravitational force mg, where m is the magnetic moment andbz and b8z are the magnetic field on the axis and its derivative, respectively. Using a box cutter or knife, cut a trapezoid out of an old cd case that is about 2. The magnets used in magnetic levitation suspend an object free of contact with any surface, making it particularly appropriate for highspeed 275300 mph435475 kmh transportation, where it greatly reduces friction and allows for fast, quiet operation. I have a simple experiment i conducted that will allow you to observe a magnet levitate, but its not levitating, its just suspended. We built a basic version of this experiment to highlight some of the challenges and solutions of a project like this. Maglev 1 magnetic levitation experiment quanser consulting inc. Jiya 1senior lecturer, department of electrical and electronic engineering, university of maduguri, borno state nigeria.
The maglev project consists of two construction phases. Jul 11, 2017 an easy experiment on magnetic levitation. In the past, magnetic levitation was attempted by using permanent magnets. Tutorial and experiments on magnetic levitation the. Magnetic levitation experiment quanser consulting inc. With maglev, a vehicle is levitated a short distance.
An unsung phenomenon of the past which is now being put to use in a variety of interesting and useful applications. Maglev derived from magnetic levitation is a system of train transportation that uses two sets of magnets, one set to repel and push the train up off the track, and another set to move the elevated train ahead, taking advantage of the lack of friction. A brief introduction is necessary to understand magnetic levitation. Magnetic levitation simple electrical project electrical. Abstract the term levitation refers to a class of technologies that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles and bearings. Ppt magnetic levitation powerpoint presentation free. I built your magnetic levitation circuit and also found it to work but the length of time for the magnets to stay in levitation was very dependent on my ability to place the magnets without inducing oscillations or rotations. Magnetic levitation system in control engineering education 153 2.
Modeling and control for a magnetic levitation system based on. A new type of magnetic levitation mechanism has been proposed. When superconductor warms up, the magnet falls down. Tie the magnet to a string and float another magnet above it the tieddowm. Design, implementation and control of a magnetic levitation device.
With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust. An experiment was performed to emphasize the effect of distance on the. Modeling and control of a magnetic levitation system concepts emphasized. The ridership levels enjoyed by highspeed rail systemsl in france and japan and.
Not having wheels will reduce friction forces and makes it possible to achieve higher speeds and a smoother ride. A magnetic levitation sliding structure including a first slide member, and a first magnetic portion which is disposed in the first slide member to extend along the lengthwise direction of the first slide member and has magnetic poles arranged perpendicular to the lengthwise direction of the first slide member with the lengthwise direction of the first slide member being an extending direction. Magnetic levitation maglev or magnetic suspension is a method by which an object is suspended with no support other than magnetic fields. Using magnetic repulsion, it becomes magnetic levitation.
The first experiment studies system nonlinear characteristics, and the second experiment studies system dynamic characteristics with a number of different control actions. Dynamic modeling, timedomain analysis, pi and pid feedback control. The physics of magnetic levitation physics 212x spring 2011 john dutton 04122011 magnets make up a huge part of our everyday lives. Magnetic levitation and related systems twin goalsto relieve air and ground traffic congestion and to be technologically competitive in transportationhave prompted considerable interest in the united states in highspeed ground transportation alternatives. The aim of this thesis was to investigate magnetic levitation and to design a working.
Feb 27, 2012 when a magnet is placed over it, it levitates due to the expelled magnetic field from the superconductor. 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. This project is an opportunity to experiment with magnetic forces and the ways that we may use them. Hardware the ecp magnetic levitation maglev design see fig. Richard post from lawrence livermore national labs llnl. Since then, japans shinkansen network has expanded considerably, and its success has prompted rapid development of highspeed railways in other countries. The term levitation refers to a class of technologies that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles and bearings. When a magnet is placed over it, it levitates due to the expelled magnetic field from the superconductor. Modeling and control of a magnetic levitation system. Magnetic levitation this is a simple magnetic levitator which suspends objects a set distance below an electromagnet. Science fair projects projects for kids magnetic levitation.
Magnetic levitation train for science fair project by our 5th grader. Nonfunctioning magnetic levitation maglev train at old dominion university odu thesis. A robust levitation control of maglev vehicles subject to. Introduction magnetic levitation is becoming widely applicable in magnetic bearings, highspeed ground transportation, vibration isolation, etc. Apr 10, 2011 magnetic levitation theory and application based on levitation such as train,toy,turbine etc.
Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. When he makes it to spin the top keeps its polarity directio. It employs diamagnetism, which is an intrinsic property of many materials referring to their. This is to certify that the work in the thesis entitled controller design for magnetic levitation system by abhishek nayak is a record of an original research work carried out by him under my supervision and guidance in partial fulfillment of the requirements for the. Today magnetic levitation is being used in high speed trains. The simulation and experiment results proved the effectiveness. Simple magnetic levitation train seminar reportpdf ppt download the answer to this transportation problem lies in the world of electro magnetism and superconducting magnets. This is like the stringofpaperclips trick, where a paperclip with a magnet stuck to it can pick up another paperclip, because its acting like a magnet. The physics of magnetic levitation david newmans page. One popular science experiment we are often asked about is the magnetic levitating train.
It is proved that magnetic levitation cannot be obtained just by using static ferromagnetism, as the object would tend to gain instability. Railway technology today 12 edited by kanji wako magnetic levitation maglev technologies the tokaido shinkansen began operations in 1964 and was an immediate success. The transferred current in experiment is about a half of the theoretical examination. The ball elevation from the post is measured using a sensor embedded in the post. Pdf on jul 1, 2019, metin ekinci and others published magnetic levitation circuit system. As a result, diamagnetic materials are repelled by strong magnetic fields.
Label the north and south poles of all 6 ring magnets you will use for your project with a permanent marker. Us20080182634a1 magnetic levitation sliding structure. If magnetic repulsion is used, it is known as magnetic levitation. Magnetism by definition is a physical property of a certain material that responds to a magnetic field. A simple project to demonstrate magnetic levitation uses six ring magnets, a pencil and some modeling clay. Download the seminar report for magnetic levitation. If the magnetic force of attraction is used, it is known as magnetic suspension. The physics behind it is to simply provide a magnetic force which equal and opposite to the gravitational force on the object. Observer based controller for magnetic levitation system engr. Need vegetable oil, water, food dye and denture tablets or other fizz maker lava lamp science experiment for students would be a fun activity to do one day.
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