How inductive sensors work Inductive sensors are often used to measure position or velocity, especially in harsh environments. The terminology and technology of inductive position sensors can be confusing for many engineers. In this article, the various types of inductive sensors are explained, how they work, and their respective strengths and weaknesses. Inductive position and [...]
Efficient use of weak magnetic energy, new collectors help IoT sensors "self-generate" CHINA's "dual-carbon" strategy advocates a green, environmentally friendly, and low-carbon lifestyle, which depends on the continuous development and innovation of green energy technologies. At the moment when our country is vigorously developing renewable energy, the recovery and reuse of micro-energy such as magnetic [...]
Gold, silver, copper, and iron are all metals. Why do magnets only attract iron? It is a well-known phenomenon that a magnet will attract iron. I believe that everyone has tried to use a magnet to approach other metals to see if the magnet can attract them. However, the "experimental results" are often disappointing. Because [...]
Astronomers want to use magnets to salvage underwater meteorites Astronomers plan to use a mattress-sized magnet to salvage meteorites from the ocean, according to a report on the website of Popular Mechanics on August 18. On January 8, 2014, a meteor exploded over the Pacific Ocean north of Papua New Guinea at a speed of [...]
President Biden has decided not to restrict imports of ndfeb magnets. The US "Political News Network" said that the neodymium magnets imported by the United States mainly come from China, and Biden's decision avoided a new trade war between the United States and China and other economies. According to a report by the "Political News [...]
Oxygen from the moon! China has achieved breakthrough results If one day we could actually live on the moon, what would be the most important thing? Yes, it is oxygen. "Produce the first mouthful of oxygen for the Chinese on the moon as soon as possible", this is the mouth of Guo Linli, a researcher [...]
Study finds magnets could solve oxygen supply problems for astronauts during long-term space travel A team of experts from the University of Warwick has demonstrated a new method for producing oxygen in microgravity conditions that involves magnets. Magnets are used to attract gas bubbles to condense in an area, making it easier to harvest them [...]
The world's strongest magnet will be shipped to France to assemble an "artificial sun" that can suck aircraft carriers off the ground The International Thermonuclear Experimental Reactor (ITER) project said recently that the world's strongest magnet has been manufactured for ten years and is ready to be shipped to France to assemble an "artificial sun" [...]
Can magnetic lock without keyhole cry a thief? A magnet can be easily cracked A magnetic lock without a keyhole claims to make it impossible for thieves to start, and can only be opened by attaching a matching, magnetic key to the lock body. Recently, this lock with a unique appearance and a tall name [...]
Up to 75% depend on China! U.S. no longer restricts imports of neodymium magnets On September 21, the United States announced that it would no longer restrict the import of neodymium magnets. Neodymium magnets are rare earth materials commonly used in commercial and military applications. According to a report, as the application of such magnets [...]
Giant Magnetoresistance Have you ever sat around on a rainy day contemplating your computer’s hard disk drive? Though often taken for granted, this magnetized device makes it possible to store and retrieve information digitally – in everything from video games to iPods to your personal computer. The first hard disk drives (HDDs) date back to [...]
Permanent Magnets: A Study in Sticktoitiveness There are two basic kinds of magnets permanent and temporary. We'll take on permanent first which is appropriate, because before humans could invent and exploit temporary magnets, they had to discover the permanent kind first. People first happened upon magnets sometime before 600 BC with the discovery of the [...]
Hybrid Magnets: Best of Both Worlds Unlike most of the math that goes on at the Magnet Lab, the equation you need to make a more powerful continuous field magnet is pretty easy. Take a very powerful superconducting magnet say, 11.5 tesla and a very powerful resistive magnet say, 33.5 tesla and put them together. [...]
Electromagnets: Two Forces Team Up Resistive electromagnets, another type of temporary magnet, combine the powers of electricity and of magnetism to enormous effect. Although superconducting electromagnets, which we'll discuss soon, offer many advantages, certain laws of physics prevent them from reaching the field strengths electromagnets are capable of. Some of the world's most powerful resistive [...]
Superconducting Magnets: Power Unplugged Superconductivity is a very cool phenomenon in which electrical resistance is overcome with the help of very cold temperatures colder than anything this side of Pluto! Most superconducting magnets are made using an alloy called niobium-titanium "Ni-Ti" for short. You could think of it this way: In a superconducting current, the [...]
A Boost for Permanent Magnets Scientists at TU Darmstadt explored on an atomic level how changes in iron content influence the micro-structure of samarium-cobalt based permanent magnets. Their results were published in Nature Communications. In the long run they could contribute to the development of permanent magnets with improved magnetic performance. These magnets can be [...]
Scientists Discover Potential Path to Improving Samarium-Cobalt Magnets Scientists have discovered a potential tool to enhance magnetization and magnetic anisotropy, making it possible to improve the performance of samarium-cobalt magnets. The scientists, at the U.S. Department of Energy's Critical Materials Institute at Ames Laboratory, in collaboration with the Nebraska Center for Materials and Nanoscience and [...]
MAGNETIC TECHNICAL CHARACTERISTICS PRODUCTS Deviations from shapes and positions, tolerances Magnetics materials Magnetic Force Direction of orientation Direction of magnetization Shapes of magnets Terminology and definitions Neodymium Qualities HSMAG works daily with the commitment and responsibility to ensure a product with a high level of quality. Permanent magnets are used in almost all industrial sectors. [...]
4 Factors Causing Your Magnets to Get Weaker Get the most value from your investment by avoiding potential magnet-weakening forces. Here's how! Whether you are buying magnets for home, office, hobby, or industrial use, you surely want to protect your new purchase to ensure they last as long as possible and stay as strong as [...]
Can unmagnetized steel be magnetized? Yes, all that is necessary is to line up the free electrons in all the atoms in a sample of steel or iron in the same direction. One way of magnetizing steel is to wrap the electric wire around the steel multiple times and then run a current through the [...]
Residual Magnetic Flux Density Distribution Calculation Considering Effect of Aligning Field for Anisotropic Bonded NdFeB Magnets Abstract This paper presents a calculation method of residual magnetic flux density distribution for a four-pole anisotropic bonded NdFeB permanent magnet (PM) considering the effect of aligning magnetic field during the forming process. To manufacture the anisotropic bonded NdFeB [...]
Do permanent magnets have a half-life or otherwise “decay” over time? from reddit Physics It seems like there must be some energetic cost to constantly exerting a force on the surroundings. As particles & objects resist that force, it must exert some backward torque or whatever on the aligned atoms of the magnet. Over time, [...]
Coercivity and Remanence in Permanent Magnets A good permanent magnet should produce a high magnetic field with a low mass, and should be stable against the influences which would demagnetize it. The desirable properties of such magnets are typically stated in terms of the remanence and coercivity of the magnet materials. coercivity-and-remanence-in-permanent-magnets When [...]
Ferromagnetism Ferromagnetism is a property of a material in which particles called magnetic moments organize parallel to one another when there is a magnetic field. These particles remain in place even when the magnet is taken away. Magnetism occurs on an atomic level, with the field having a direct affect on the electrons [...]
