Magnetic Levitation and Propulsion through Synchronous Linear Motors

The current has a positive charge in one side of the coil and it transforms to negative when it gets to the other side of the coil. This charge controls the magnetic field, making the like charges repeal and the opposite charges attract.

Magnetic levitation uses the natural repelling nature of the poles that are of the same kind to control levitation. This can come in many different forms and all made differently. One way is permanent magnets, which is the easiest of all the forms because it does not require any outside material to make the levitation, but it is not very controllable. Magnetism is the main component in the levitation act.

I have always been coming up with crazy ideas on to build stuff. Most people would just look at me and shake their head. This project is based on one of those more crazy ideas. Most people don’t understand the awesome capabilities of magnets. This paper will discuss the research of magnets and the hopefully I will be able people the awesome things magnets can do.

It is usually represented by a combination of loops that leave the N-pole and enter the S-pole. These loops are called the magnetic flux. When a charge moves in an electric field, it will experience an electrostatic force given by an equation F=qE. Also, when a charge enters a magnetic field B, a magnetic force is exerted. F=qv*B. If the charge moves in a wire, with length L, the force can be represented as F=ILBsin(theta).

Maxwell’s second equation (div B = 0) is simply replaced with the density of the magnetic charge, a term similar to that of the density of electric charge that occurs on the right hand side of the first of Maxwell’s equations (relating the divergence of the electric field to the density of the electric

The strength of magnetic fields is measured in units of Teslas (T). One tesla is actually a relatively strong field - the earth's magnetic field is of the order of 0.0001 T.

Do you want to know a secret? First, consider this: When a magician performs a magic trick, many ask, “How did he do that?” Well…the true magician never tells because it is a secret. But when speaking about magnetism and its use in our everyday lives, you can learn the SECRET—the secret of magnetism! A true scientist would be glad to share his secrets through experimentation. Thus, I will share the secret with you. It begins with science—physics, to be exact: matter and energy, conduction and induction, magnetizing and demagnetizing. All will be explained in my science project. More importantly, to discover through experimentation that the secret behind magnetism could be its power! Let’s start by defining an electromagnet.

If the electron is moving perpendicular to the magnetic field, then the magnitude of Fm is given by

Electric motors rely on the force of an electromagnet, as does every electric motor. An electromagnet is created when a current flows through the copper wire. The electromagnet forms a magnetic field around the coil. A magnetic field is the area around a magnet where its force can be detected. This magnetic field causes another force which is called polarity. Polarity describes two areas (north and south poles) of the magnet were the force of the magnet is the strongest.

Over 2000 years ago, the Chinese discovered that lodestone, a naturally magnetised iron ore, would align itself in a north-south direction. Hundreds of years later, they discovered that their “compasses” didn’t point true north and in fact that this position changed with time. The compass was first used for navigation in the 11th-12th century, only arriving in Europe towards the end of this period. Then, in 1600, William Gilbert (Figure 1.1) published De Magnete, Magnetisque Corporibus, et de Magno Magnete Tellue (On the Magnet and Magnetic Bodies, and on the Great Magnet the Earth). He concluded that the Earth itself was magnetic with a centre of iron, and this is why a compass would point north.

The motion of the Maglev train is based purely on magnetism and magnetic fields. This magnetic field is produced by using high-powered electromagnets. By using magnetic fields, the Maglev train can be

Using a designed apparatus by letting current pass through the copper wire around A PVC tube, generate electricity and measure the local magnetic field by comparing it to a known value created by a coil of known size, current, and turns.

An even more interesting fact is when charged particles move in a nonuniform magnetic field. Here the motion is rather complex. For instance, in a magnetic field that is strong at the ends and weak in the middle, the particles will be fluctuating back and forth between the ending points, as in the figure shown below. Anyway, this magnetic field can be generated by two current loops going in the same direction. In this case, the charged particle will start spiraling along the magnetic field lines starting from one end till it

Maxwell’s Equations are a set of four mathematical equations that provides the foundation to the largely abstract concepts of electricity and magnetism. They are a mathematical condensation of all the basic rules, by which electricity and magnetism function. Refer to Figure 1 for the equations.

Magnetic brush: the iron particle being responding to magnetic field gets in alignment along the magnetic flux line & the abrasives particle in between, forming a stable brush, they retains this shape, the brush is rigid, during the operation. The brush gets stick to contour of workpiece; the electro magnetically generated field is providing required pressing pressure.