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At the beginning of 2015, the price of rare earth materials showed a slight upward trend under the national mandatory control, and the price of NdFeB strong magnets was also deeply affected. Based on this increase, the unit price of NdFeB strong magnet products has also risen sharply. Since the u...Read more »
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Ferromagnetic substances such as iron, cobalt, nickel or ferrite are different. The electron spins in it can be spontaneously arranged in a small range to form a spontaneous magnetization region, which is called a magnetic domain. After the ferromagnetic substance is magnetized, the internal magn...Read more »
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If you ask what a magnet is, I believe everyone knows that it is actually a material that can generate a magnetic field, a magnet that is permanent and inexpensive. The magnet that I used to play with when I was a child is a natural product, so it is also called a natural lodestone. But you must ...Read more »
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For some reason, I had to get into the field of magnetics and plan from scratch. At first I only felt ordinary, but the more I came into contact with it, the more mysterious and magical it became. When I went deeper, I only felt that my knowledge was superficial, and it was natural. The initial u...Read more »
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The maglev train uses the principle of magnets of the same sex to repel and opposite sex to attract, so that the magnets have the ability to resist gravity, so that the car body is completely off the track, suspended about 1 cm from the track, and travels in the air, creating a near-zero height T...Read more »
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1. The principle of magnetic levitation: the rotor will deviate from its reference position when subjected to a downward disturbance. At this time, the sensor detects the displacement of the rotor away from the reference point, and the microprocessor as the controller converts the detected displa...Read more »
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Now China is investing heavily in high-speed rail construction. In addition to building more lines, it is also developing more advanced train technologies. For example, some time ago, China released a prototype of a new generation of maglev high-speed rail trains, claiming that its running speed ...Read more »
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There are two types of electromagnets used in magnetic levitation: normal conducting electromagnets and superconducting electromagnets. The conductive material of the conventional electromagnet is a commonly used metal conductive material with a certain resistance. In order to suspend the carriag...Read more »
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The maglev train uses the principle of magnets of the same sex to repel and opposite sex to attract, so that the magnets have the ability to resist gravity, so that the car body is completely off the track, suspended about 1 cm from the track, and travels in the air, creating a near-zero height T...Read more »
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Using the principle of “same sex repelling, opposite sex attracting”, the magnet has the ability to resist gravity, so that the car body is completely off the track, suspended at a distance of about 1 cm from the track, and travels in the air, creating a nearly “zero height̶...Read more »
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There are three basic principles of maglev: 1. When the magnetic field close to the metal changes, the electrons on the metal will move, and a current will be generated. 2. Magnetic effect of current. When current flows in a wire or a piece of metal, a magnetic field is created. The energized coi...Read more »
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The levitation technologies up to 2012 mainly include electromagnetic levitation, optical levitation, acoustic levitation, airflow levitation, electrostatic levitation, particle beam levitation, etc. Among them, the electromagnetic levitation technology is relatively mature. Commonly used to call...Read more »