Brief Introduction Of Ferrite Core Ferrite core is mainly composed of iron (Fe), manganese (Mn), and zinc (Zn) three metal elements, commonly known as manganese-zinc ferrite. Because the annular ferrite core has no air gap and the cross section area is uniform, the magnetic effect is very high. Ferrite rings have a wide range of [...]
Electromagnetism & Magnetism Applications Magnetism and moving electrons are closely related to each other. The three phenomena pertaining to electromagnetism are: Moving electric charges produce magnetic fields. Magnetic fields exert forces on moving electric charges. Changing magnetic fields in the presence of electric charges cause electrons to flow In 1820, Danish physicist Hans Oersted noted [...]
Magnetic Jewelry an Overlooked Danger The federal government brands magnets in toys a deadly hazard to children because the tiny, powerful objects can fall out and cause serious, even fatal, internal injuries when swallowed. Yet the Consumer Product Safety Commission has not taken steps to regulate even more powerful magnets when they are sold in [...]
Magnetism as an Energy Source: Understanding Magnetic Force This article will discuss magnetic fields and electromagnetism. An invisible force occurs between two magnets when they are brought close to each other. This force may be an attraction force that pulls the magnets together or a repulsion force that pushes them apart. See Figure 1. Magnetic [...]
Magnetic Core Characteristics and Applications Magnetic components have been used in several power electronic devices for decades. They are used in a wide range of applications. In order to implement the designed magnetic components, it is essential to have a good understanding of magnetic materials and associated technology. In the previous article, we learned about [...]
What are Magnetic Forces? Magnetic forces act upon magnetic objects or charged particles moving through a magnetic field. They are affected by the strength of the magnetic field, the total charge of a particle, and its speed and direction. Permanent magnets have their molecular structures aligned during formation so that they will attract certain types [...]
Magnetization Direction of Square Magnet At present, they are widely used in the market, such as square shaped magnets, which can be widely used in the market. Don't be careless when purchasing square magnets. It is necessary to know the magnetizing direction you want There are many ways to magnetize a square magnet, which is [...]
New Type EV Motor, Use No Magnet MAHLE's new, inexpensive and efficient EV motor does not use magnets. Magnets usually made of rare earth metals such as neodymium are found in the heart of most electric vehicles. Having a permanent strong rare earth magnetic field in the rotor is a good choice, because using a [...]
Introduction of Magnetic Force of NdFeB Magnet The largest and most important part of a magnetic resonance imaging system is the magnet. The unit that marks the grade of this magnet is called Tesla. Another common unit of measurement applied to magnets is Gauss (1 Tesla = 10000 Gauss). At present, the magnets used in [...]
How are Neodymium Magnets Made? The two processes used to manufacture neodymium magnets are sintering and bonding. The properties of the finished magnets vary depending on how they are produced with sintering being the best of the two methods. How Neodymium Magnets are Made Sintering Melting: The Neodymium, Iron and Boron are measured out and [...]
What are the Properties of a Neodymium Magnet? The main characteristic of neodymium magnets is how strong they are for their size. The magnetic field of a neodymium magnet occurs when a magnetic field is applied to it and the atomic dipoles align, which is the magnetic hysteresis loop. When the magnetic field is removed, [...]
Surface Coating Technology Increases the Life of NdFeB Magnets At present, China's rare earth NdFeB production has formed an industrial system, and the output has accounted for more than 80% of the world's total output. However, China's production of high-end NdFeB products is lack of competitiveness, which has become a bottleneck restricting the development of [...]