Commonly Used Soft Magnetic Core Iron Powder Core Permalloy Powder Core Iron-Silicon-Aluminium Powder Core Magnetic powder core is a kind of soft magnetic material made by mixing and pressing ferromagnetic powder and insulating medium. Ferromagnetic particles are very small (0.5-5 micron used at high frequencies) and are separated by non-magnetic insulating film materials. Therefore, on [...]
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 Memory Ever thought of the origin of the phrase "Core Dump"? Even today, programmers know that it means a dump (to disk or hard copy) of the contents of part of memory. And no, the phrase does not mean that it's a "central" part of memory; it means Cores, literally. Like these. The [...]
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 [...]
Standards and Regulations for Neodymium Magnet Use Though neodymium magnets have a strong magnetic field, they are very brittle and require special handling. Several industrial monitoring agencies have developed regulations regarding the handling, manufacture, and shipping of neodymium magnets. A brief description of a few of the regulations is listed below. Standards and Regulations for [...]
Applications for Neodymium Magnets Since their discovery, in the early 1980s, neodymium magnets have become the most widely used of the many varieties of magnets. They can be found in several everyday devices from disk drives to magnetic parts of cars and airplanes. Neodymium magnets can be produced in any size but retain their initial [...]
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 [...]