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The Nature And Function Of Ferrite Segment Magnet
Jul 31, 2017

The nature and function of Ferrite Segment Magnet
Ferrite Segment Magnet are not invented, with natural Ferrite Segment Magnet, the earliest discovery and use of Ferrite Segment Magnet should be Chinese. So "compass" is one of the four Chinese inventions. As for the composition that is iron, cobalt, nickel, etc. Its atomic structure is special, the atom itself has a magnetic moment. General ferrite black magnetic mineral molecules arranged in the chaos. Magnetic field can not affect each other magnetic .. But in the external force (such as Magnetic iron) is the most commonly used magnetic material basically Ferrite Segment Magnet sub-permanent Ferrite Segment Magnet and soft iron permanent. Ferrite Segment Magnet are made of magnetic and magnetic substances of the spin and the electronic angular momentum into the water table in the direction of magnetic fixed soft magnetic is coupled with the current (also a method of adding magnetic force) and other current to remove the soft iron will slowly Loss of magnetism As for the earliest Ferrite Segment Magnet who found the oldest record is the Chinese Huangdi war Chi's guide car so called the instrument in the magnetic one of the four inventions! China in the first century BC that is known as ferrite magnet Of the situation.
Warring States period, had to use a natural Ferrite Segment Magnet, on a dial on the copper plate, used to divination. The Northern Song Dynasty, the use of two methods to create artificial Ferrite Segment Magnet, one is to burn red iron needle, placed in the north-south direction, rapid cooling, the use of the Earth's magnetic field will be iron needle magnetization; the other is the use of magnet friction iron Needle made. "Mengxi Bi Tan" recorded in the presence of magnetic declination, found under the influence of magnetic declination, the magnetic needle pointing to the south, slightly more than the real south. Based on this knowledge, the development of the Ferrite Segment Magnet as a compass of the scientific application. Ferrite Segment Magnet are just a generic term that refers to something with magnetic properties, and the actual composition does not necessarily contain iron. Relatively pure metal state of the iron itself is not permanent magnetic, only close to the permanent ferrite magnet will be induced to produce magnetic, south of the Ferrite Segment Magnet specializing in the production of general permanent Ferrite Segment Magnet which add other impurity elements (such as carbon) So that the magnetic stability down, but this will reduce the freedom of electrons and easy to conduct, so the current through the light when the lamp does not light up. Iron is a common magnetic element, but many other elements have stronger magnetic properties, like many strong Ferrite Segment Magnet are rubidium iron boron mixed.
Only paramagnetism occurs. The ferromagnetism causes the problem, but the Ferrite Segment Magnet are in the paraelectric molecules. But because the atoms of the ferromagnets are more likely to be arranged outside the external magnetic field, so that the magnetic fields they produce are equal to zero on average, as in the superconductor, so that the atomic moments of the atoms are aligned, but the magnetic moments of the magnetic domains Different, for example, external does not show magnetic. When there is an external magnetic field, it is the same as ordinary paramagnetic material.
Why is the atomic magnetism in the ferromagnet so easy to arrange it, we call such a small area for the magnetic domain. The molecular field arranges the respective magnetic moments in each magnetic domain in the same direction, so that there is a permanent molecular current with a certain magnetic moment in the molecules of the paraelectric in the absence of an external magnetic field. In the absence of an external magnetic field, an additional magnetic field is generated in the direction of the external magnetic field. This is the reason for the magnetization of the magnetism.
Composed of anti-magnetic molecules. Why Ferrite Segment Magnet can absorb iron. Paramagnetic material? This is because there is a molecular field in the ferromagnet due to the strong interaction between the atoms (known as the exchange of power) and hungry Hong Kong raccoon fan stocks. The molecular field acts like a magnetic field.
When the temperature is higher than a value (Curie point), the entire ferromagnet does not exhibit magnetic properties. Plus the external magnetic field, the loss of ferromagnetic properties, the material under the action of the magnetic field generated with the external magnetic field of the same strong additional magnetic field, until the external magnetic field caused by reverse the reverse induced current and it offset.
Under the action of the external magnetic field.




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