Eddy current brake - their structure simply explained

05-29  Source: Network gathering  Views:4 


Eddy current brake - their structure simply explained

New roller coasters braking using eddy current brakes.

Principle and structure of the eddy current brake

Important for understanding the function of the eddy current brake is the knowledge that in conductive objects eddy currents are induced once they move in a variable magnetic field. These currents can then be selectively used to decelerate the subject.

  • One can initially an object that is electrically conductive - about a metal plate - commuting through a magnetic field. After a short time the subject loses massively speed and stops finally.
  • This observation can be using the law of induction and Lenz's Law explained:
  • The object moves through its movement from the permanent magnetic field in and out, thus he learns each different magnetic fields - even a strong and once even none or only a Dim. In addition, he has compared to the magnetic field at a relative speed, resulting in the induction of current leads hence in him.
  • The faster the object in reciprocates magnetic field, the greater the current (eddy current), which is thereby induced in him. The Lenz's law states that, the induced current counter to its emergence acts exactly - so the object decelerates. This works by the eddy current will flow, so that it causes a magnetic field which is opposed to that of the existing magnetic field - to be "objective" is to re-establish a field-free state.

Advantages and applications of the eddy current brake

  • The biggest feature of the eddy current brake is that it comes completely without contact between the braking device and to be braked parts. Wear do not occur in this context, guaranteeing a great durability of the brake.
  • Use find the eddy current brakes in various areas. Rail vehicles such as trains, fitness equipment, amusement machines, trucks or even measuring instruments benefit from the strong and particularly failsafe brakes.
  • A disadvantage of only that under circumstances creating a strong heating of the metal parts, usually the materials used are equal to these temperatures.

The idea of ​​the eddy current brakes was indeed patented as early as 1892, but they came so, as we know, until much later used. Meanwhile, they are particularly indispensable for rail vehicles.

Related articles
  • Eddy current brake - their structure simply explained 05-29

    New roller coasters braking using eddy current brakes. Principle and structure of the eddy current brake Important for understanding the function of the eddy current brake is the knowledge that in conductive objects eddy currents are induced once the

  • Silencer - the structure simply explained 01-20

    Just firearms may be quieter by silencer. The uses of a silencer Just handguns, rifles or pistols so as to cause a significant amount of volume, which is at times even more than the human pain threshold. This is also a reason why most of earmuffs are

  • Coaxial Cable - structure simply explained 07-24

    Antenna connections and their connections using coaxial cable. What are the differences in the structure of other cables? Coaxial translates as coaxial. Thereby, the construction of such a cable is already defined. When a coaxial cable with an approp

  • Song structure simply explained 02-06

    A good song should encourage them to sing along. Songs and song forms Songs can be found in all cultures of the world. You can distinguish music and chant and sung lyrical and epic forms. Depending on the culture accompany instruments singing. The wo

  • Operon model simply explained 08-04

    The operon is a functional unit of DNA and thus quite complex. The operon model is not yet defined for a long time. In 1960, it was developed by two French scientists. Since it was named after the two scientists, you often read that it is the operon

  • The Meselson-Stahl experiment - simply explained 03-21

    The DNA is the human genome. The historical background of the Meselson-Stahl experiment 1869 discovered the doctor Miescher first time deoxyribonucleic -short DNA in cells. 1943 could prove Avery that DNA is the carrier of genetic information. 1953 t

  • Around pumping method simply explained 03-20

    Oil and vinegar for seasoning at the table. Vinegar - simply explained and prepared without round pumping method Vinegar has just two ingredients: acetic acid and water. You can buy vinegar essence containing 25% acetic acid and the usual vinegar for

  • Heat conduction - examples from everyday life simply explained 08-28

    Check the operation of your heating. Andreas_Morlok / Pixelio Some examples of good heat conduction The heat conduction can take place in everyday life on the different heat transfer. A very commonly used element is likely to be the water. Water can

  • ACI simply explained 09-11

    The ancient Romans used the ACI significantly more likely than the modern German. The ACI in Latin The ACI, which accusative and infinitive, is a sentence construction in Latin, which is also found in other languages. The ACI is simple: It is a noun

  • Eddy current brake - Instructions for a Model 09-26

    The Wirbelstrombremsenbau requires knowledge of physics. Gerd_Altmann / Pixelio Basic information on the eddy current brake The first step is to know that an eddy current brake is a wear-free brake which eddy current losses of moving by magnetic meta

  • Investiturstreit simply explained 10-16

    The Investiture Controversy was a dispute between secular and spiritual power. Background of the Investiture Controversy The Investiture Controversy was a dispute in the Middle Ages. This was between the spiritual power of the Church and the secular

  • Nuclear fission simply explained 12-22

    An atomic nucleus with three electrons Thus fission is simply explained From a nuclear fission occurs when a nucleus is split into one or more components. This split can both arise spontaneously, that are induced without any external influence or, ie

  • The feudal system simply explained 12-31

    The king was at the head of the feudal association. The word "Lehn" is derived from the word "borrow". A landowner borrows a destitute farmers a piece of land. This it managed for him and must swear allegiance to him in return. This ex

  • Clotting simply explained 01-10

    Blood clotting is vital. simply explains the physiology of blood clotting Blood clotting is after injury of the blood vessels to the closure of the site, so it does not come to blood loss. Furthermore, it is the first step in wound healing. The medic

  • What's caprice? - Simply explains the term 03-02

    Princes were often arbitrary rulers. "Arbitrariness" simply explains the term There are different approaches to explain the concept of arbitrariness. explains literary stands for arbitrary decisions and actions that are taken at will and free ch

  • Difference geographic and magnetic north simply explained 05-13

    determine the magnetic north with the compass Geography North simply explained To understand the difference of the geographic and magnetic north, you first need a definition of the two terms. When true north is the intersection of the geographical po

  • What is democracy? - State systems simply explained 08-15

    Separation of powers characterizes democracy. Wilhelmine Wulff / Pixelio Earlier, the monarchy was the predominant form of government. The monarch was the head of the state and certain in its sole discretion, and politically traded and how the people

  • "On Hungertuch gnaw" - meaning simply explained 09-18

    On Hungertuch gnaw through too much shopping? starving - hence the phrase "On Hungertuch gnaw", is a very old saying, but until today still applies. Its origin is found in a Catholic custom. Other terms of the hunger cloth are: Fast cloth Schmac

  • Glycolysis simply explained 09-18

    For glycolysis glucose is necessary. How the glycolysis Glycolysis is also known as glucose metabolism. Glucose in turn can be explained simply because it is synonymous with sugar. The term glycolysis comes from Greek and means "dissolve Sweet".

  • Riemann hypothesis - simply explained 10-22

    The Riemann hypothesis is advanced mathematics. The Riemann hypothesis is a mystery While medical researchers, physicists and chemists research still further and seek solutions that prevails in mathematics, a certain standstill. If the Riemann Hypoth