28-03-2015, 02:44 PM
i want seminar report of eddy current braking system
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eddy current brakes seminars report pdf
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i want seminar report of eddy current braking system
13-04-2017, 12:30 PM
A eddy current brake as a conventional friction brake, is a device used to slow or stop a moving object by dissipating its kinetic energy as heat. However, unlike electromechanical brakes, where the drag force used to stop the moving object is provided by friction between two pressed surfaces together, the drag force in a eddy current brake is an electromagnetic force between A magnet and a nearby conductive object in relative motion due to parasitic currents induced in the conductor through electromagnetic induction.
A conductive surface passing through a stationary magnet will have circular electrical currents called parasitic currents induced therein by the magnetic field, as described in the Faraday induction law. According to Lenz's law, the circulating currents will create their own magnetic field opposing the field of the magnet. Thus, the moving driver will experience a pulling force of the magnet that opposes its movement, proportional to its speed. The electrical energy of the parasitic currents dissipates as heat due to the electrical resistance of the conductor.
In a Foucault current brake the magnetic field can be created by a permanent magnet or an electromagnet so that the braking force can be activated and deactivated or varied by varying the electric current in the electromagnet windings. Another advantage is that since the brake does not work by friction, there are no surfaces of brake shoes that wear out, requiring replacement, as with friction brakes. A disadvantage is that, since the braking force is proportional to the speed, the brake has no holding force when the moving object is stopped, as provided by static friction in a friction brake, so that in vehicles Be supplemented by a friction brake. Foucault current brakes are used to reduce high-speed trains and roller coasters, to stop power tools quickly when power is turned off, and on electric meters used by electric utilities.
Foucault current braking is a state-of-the-art braking technology that has economic and risk management advantages. This unique braking technology has the simple function of magnetic and non-magnetic forces and makes it a high-tech masterpiece. The use of these forces as a braking mechanism stems from the intentional generation of eddy currents in order to retard a movement. Foucault currents are formed when a conductor moves through a magnetic field, which generates opposing forces that rotate inside the conductor. This reaction between forces provides the perfect conditions for a gentle deceleration. If you are interested in reading more about the science behind the eddy current technology, you can click here for more information.
Foucault's current braking gets its name from the movements that rotate inside its conductor, just like a Foucault current in a river. As an innovative form of technology, Foucault's current braking has many good reputable qualities. It is an ideal feature in many forms of machinery due to its absence of physical contact between the internal components, which allows the eddy current brakes to be very low maintenance. Low maintenance means there are few replacements, which means more money in your pocket.
The improvements in risk management and the economic advantages that accompany the Foucault current brake have made it a popular choice among engineers when developing new technologies or improving old ones. This intricate network of magnets is more commonly used than you might think. The recognizable uses for parasitic currents are all around us. They exist in the home and in the workplace. Here are 5 familiar Foucault current brake applications.
A conductive surface passing through a stationary magnet will have circular electrical currents called parasitic currents induced therein by the magnetic field, as described in the Faraday induction law. According to Lenz's law, the circulating currents will create their own magnetic field opposing the field of the magnet. Thus, the moving driver will experience a pulling force of the magnet that opposes its movement, proportional to its speed. The electrical energy of the parasitic currents dissipates as heat due to the electrical resistance of the conductor.
In a Foucault current brake the magnetic field can be created by a permanent magnet or an electromagnet so that the braking force can be activated and deactivated or varied by varying the electric current in the electromagnet windings. Another advantage is that since the brake does not work by friction, there are no surfaces of brake shoes that wear out, requiring replacement, as with friction brakes. A disadvantage is that, since the braking force is proportional to the speed, the brake has no holding force when the moving object is stopped, as provided by static friction in a friction brake, so that in vehicles Be supplemented by a friction brake. Foucault current brakes are used to reduce high-speed trains and roller coasters, to stop power tools quickly when power is turned off, and on electric meters used by electric utilities.
Foucault current braking is a state-of-the-art braking technology that has economic and risk management advantages. This unique braking technology has the simple function of magnetic and non-magnetic forces and makes it a high-tech masterpiece. The use of these forces as a braking mechanism stems from the intentional generation of eddy currents in order to retard a movement. Foucault currents are formed when a conductor moves through a magnetic field, which generates opposing forces that rotate inside the conductor. This reaction between forces provides the perfect conditions for a gentle deceleration. If you are interested in reading more about the science behind the eddy current technology, you can click here for more information.
Foucault's current braking gets its name from the movements that rotate inside its conductor, just like a Foucault current in a river. As an innovative form of technology, Foucault's current braking has many good reputable qualities. It is an ideal feature in many forms of machinery due to its absence of physical contact between the internal components, which allows the eddy current brakes to be very low maintenance. Low maintenance means there are few replacements, which means more money in your pocket.
The improvements in risk management and the economic advantages that accompany the Foucault current brake have made it a popular choice among engineers when developing new technologies or improving old ones. This intricate network of magnets is more commonly used than you might think. The recognizable uses for parasitic currents are all around us. They exist in the home and in the workplace. Here are 5 familiar Foucault current brake applications.
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