Magnetic Particle Examination Magnetic particle examination (MT) is a very popular, low-cost method to perform nondestructive examination (NDE) of ferromagnetic material. Ferromagnetic is defined in ASME Section V as “a term applied to materials that can be magnetized or strongly attracted by a magnetic field.” MT is an NDE method that checks for surface discontinuities [...]
Honda to Use New Neodymium Magnet in Hybrid Vehicles Honda Motor Company Ltd. along with Daido Steel Company have co-developed a new neodymium magnet with high heat resistance properties without the need for rare earth metals that will be used in the all-new Honda Freed and future hybrid vehicles. This new development will make the [...]
What is the MAGNETIC MOMENT The magnetic moments is a property that we use to verify the quality of our magnets. It is a way to measure the strength of a magnet and is widely used throughout the industry. Moreover, it is an easy, quick, and repeatable measurement. The magnet grade and magnet volume define [...]
Why Magnet Handling and Storage Conditions are Important Each of the wide variety of magnetic materials available requires specific storage and handling procedures for both the safety of the user and integrity of the magnet. Improperly handled and stored magnets present risks: Risk of bodily harm or injury Risk of damage to the magnet Risk [...]
Magnet Handling Best Practices Like any other piece of equipment, magnets do need to be maintained. This helps protect them from damage and can increase their lifespan. By caring for them properly, you’ll maximize your investment as well. Here are a few steps you can take to protect this vital manufacturing tool: Understand how your [...]
How Lifting Magnets Work The lifting magnet is a versatile work handling device that is capable of supporting a variety of ferrous materials, from small bundles of rod or scrap to large, heavy blocks. Unlike slings and chains, lifting magnets can be used to lift loads that might otherwise require two or more people. By [...]
Micropower Magnetic Node from Melexis for Contactless 3D Sensing in Automotive and Industrial Applications November is Magnetic Sensing Month at Magnetics Magazine! Stay tuned and check the website frequently for new updates on the latest technology for magnetic sensing. Using its Triaxis magnetic sensing technology, Melexis has developed a new monolithic sensor for automotive and [...]
Factors Affecting Magnetic Force of Permanent Magnets Many customers who came to inquire about the magnet’s attraction asked the most about how many Gauss can attract, or send a specification to ask how much it can attract. This is introduced in previous articles. If you are interested, you can click to understand. Today’s main Let’s [...]
1800 After History of Magnetism and Electricity 1820 - Electromagnetism, Current In 1820, a physicist Hans Christian Oersted, learned that a current flowing through a wire would move a compass needle placed beside it. This showed that an electric current produced a magnetic field. Andre Marie Ampere, a French mathematician who devoted himself to the [...]
Magnetic Units of Measurement If the burden of two systems of measurement for common quantities (English vs. metric) throws your mind into confusion, this is not the place for you! Due to an early lack of standardization in the science of magnetism, we have been plagued with no less than three complete systems of measurement [...]
Electromagnetic Induction While Oersted’s surprising discovery of electromagnetism paved the way for more practical applications of electricity, it was Michael Faraday who gave us the key to the practical generation of electricity: electromagnetic induction. Faraday discovered that a voltage would be generated across a length of wire if that wire was exposed to a perpendicular [...]
Motor Permanent Magnet Permanent magnet motors use permanent magnets to generate the magnetic field of the motor, without the need for excitation coils or excitation current. Compared with traditional electric excitation motors, it has significant advantages such as high efficiency and simple structure. The applications of permanent magnet motors are extremely wide, covering almost every [...]
What is Maximum Working Temperature of Permanent Magnet? When designing an application for permanent magnets it is essential to consider the temperature range that the magnet or magnets will be expected to work in. Yet, with so much information available (some of it incorrect) it is possible to associate the wrong magnetic property with the [...]
Choosing the right ferrite cores to increase the efficiency of your product Capacitors are often used as noise suppression components. But they are not always the optimal solution because they discharge the noise to the ground. Ferrite cores, however, can suppress noise without grounding. By Baishakhi Dutta Ferrites have the ability to attract magnetic flux. [...]
Magnetism Magnetic Terminology and Definitions Formerly it was beleived that magnetism represented an independent physical phenomenon. It is a fact, however, that magnetic processes are connected to electric processes, that each electric process is a magnetic one at the same time, and vice versa. For a better understanding of physics related to magnets we have [...]
Suspension magnets are permanent magnets which remove iron from wood chips before they are burnt or reused. Suspended magnets have the capability to remove various impurities like iron parts such as nuts and bolts from coal, coke, ore and other minerals, at extremely high belt speeds, large working distances and high burden depth. As per [...]
Magnet Temperature Effects Magnetic properties of all the permanent materials change with temperature. Remanence, and thus the magnetic flux a magnet produces, decreases in all magnetic materials with increasing temperature. Ultimately, at certain, for each material characteristic temperature the material becomes non-magnetic. This temperature is known as Curie temperature (Tc). Figure 1 illustrates the temperature [...]
Permanent Magnet Stabilizing and Calibrating Permanent magnets are utilized in a wide range of commercial and industrial applications, many of which require these magnets to function in a highly stable and consistent manner. Variables such as temperature, and demagnetizing fields will impact performance, but these effects can be mitigated through stabilization or calibration. Our new [...]
Magnetic Units of Measurement Magnetic Units of Measurement - If the burden of two systems of measurement for common quantities (English vs. metric) throws your mind into confusion, this is not the place for you! Due to an early lack of standardization in the science of magnetism, we have been plagued with no less than [...]
What is gaussmeter? Gaussmeter, also known as a magnetometer, is a device used to measure the strength and direction of a magnetic field. Small, hand-held versions are available and the user can carry it with him to monitor magnetic fields as he walks. gaussmeter If the person holding it walks closer to the [...]
