How do magnetostrictive sensors work? When a ferromagnetic material — such as iron, nickel, or cobalt — is subjected to an external magnetic field, the magnetic domains within the material align, creating internal stresses that cause the material’s shape or dimensions to change. This phenomenon is referred to as magnetostriction. Conversely, when a magenetostrictive material [...]
Magnetrons - A sputtering magnetron is a magnetic device that is used to enhance the sputtering process (thin film deposition). Its magnetic field is used to produce “flux tunnels” which trap electrons and locally increase current density. This higher volumetric density of trapped electrons results in greater localized ionization rates, which, consequently, produces “order of [...]
Magnetic sensors indirectly measure properties such as direction, position, rotation, angle and current by detecting the magnetic field and its changes. Compared to other direct methods, such as optical or mechanical sensor, most magnetic sensors require some signal processing to get the property of interest. They provide reliable data without physical contact even in adverse [...]
Halbach Array Permanent magnets using harmonic corrector rings - thus making the field real-valued. Because H z is much larger than the transverse components, H x or H y , they are truncated by H z and therefore negligible. Hence, to a good approximation, H z determines the Larmor frequency. The task of the shimming [...]
Magnet Knowledge 1.How to order a magnet? In order to enable us to more effectively cooperate with your work, we need you to confirm the following before placing an order: (1). What is the material and performance? (2).What is the size and tolerance? (3). Which magnetized direction you need? Axial, diametrical? (4). The maximum temperature [...]
Use of Magnets Permanent magnet applications in general can be divided into four categories, as follows: CATEGORY 1 Applications that make use of the tractive and/or repelling force of the magnet, i.e., the attraction between a magnet and a soft magnetic material, such as a piece of iron or steel, or the attraction or repulsion [...]
Permanent Magnet Magnetic Field Strength For magnet users, how to confirm the grade and magnetic properties are still a long standing issue. Most of users can’t get the value of main magnetic parameters by themselves. In this case, the relative measurement of magnetic properties is the best solution. The relative measurement of magnetic properties includes [...]
Neodymium Magnet And Pyrolytic Carbon Part 1. High magnetic strength table Diamagnetism ranking：Superconductivity> Pyrolysis Graphite> Bismuth> Mercury> Diamond> Lead> Graphite> Copper> Water Materials Unit Xv（×10-5） Superconductivity -105 Pyrolysis Graphite -40.9 Bismuth -16.6 Mercury -2.9 Diamond -2.1 Lead -1.8 Graphite -1.6 [...]
Permanent Magnet Motors Project High-Performance Control Method, High-Performance Control Method For Permanent Magnet Motors Project Wins Special Gold Award At Geneva International Invention Exhibition Tsinghua University Department of Electrical Engineering Professor Xiao Wei's research group "High-Performance Control Method for Permanent Magnet Motors" received a special gold medal (Gold Award and was specially recommended by the [...]
Magnetic Fields What is a magnetic field? A magnetic field is quite simply the area around a magnet in which its magnetism can affect other objects. If you were to be able to see a magnetic field, you would see lines called lines of flux that show the direction of a magnet’s force or field. [...]
How do compasses work? Artwork: Earth behaves as though it has a giant bar magnet built inside it. But the magnet is the opposite way around to how you might think, with its south pole up near Earth's actual (geographic) north pole and vice-versa. A compass needle points north because the north pole of the [...]
Magnetic Field on Earth Earth has a magnetic field. If you imagine a gigantic bar magnet inside of Earth, you'll have a pretty good idea what Earth's magnetic field is shaped like. Of course, Earth DOESN'T have a giant bar magnet inside it; instead, our planet's magnetic field is made by swirling motions of molten [...]