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Magnetic Principle

/Magnetic Principle

What is the MAGNETIC MOMENT

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 [...]

LINEAR VOICE COIL ACTUATORS

LINEAR VOICE COIL ACTUATORS If you are designing a linear motion system, there is a lot to gain by using direct drive voice coil actuators (VCA) technology. Our VCA’s shine in applications where precise control is necessary. Because our moving magnet voice coil actuators consist of a stationary coil and a moving permanent magnet assembly, [...]

Magnetics Technology Flying Mission to the Sun

Magnetics technology is flying high, hot and cold in the European Space Agency’s Solar Orbiter mission to the sun. An extremely sensitive magnetometer built by Imperial College of London is a central element of the journey. A pair of specially configured Neodymium permanent-magnet micromotors from Maxon are also onboard playing a crucial supporting role, and [...]

Linear Actuator with Moving Magnet Offers Precise Positioning

Linear Actuator with Moving Magnet Offers Precise Positioning HSMAG Magnetics’ new Moving Magnet Voice Coil Actuator series allows for precise positioning to meet high accuracy requirements. When combined with smart drive electronics, this actuator can be controlled for speed and desired output force. HSMAG expertise in design of magnetic field circuits has resulted in a [...]

VOICE COIL ACTUATORS VS MOVING MAGNET ACTUATORS

VOICE COIL ACTUATORS VS MOVING MAGNET ACTUATORS Voice coil actuators have been around for many years, it is a type of direct drive linear motor. It consists of a permanent magnetic field assembly (permanent magnets and ferrous steel) and a coil assembly. Actuators are used for a wide range of applications. They compete most directly [...]

An Efficient and Optimal Moving Magnet Actuator for Active Vibration Control

An Efficient and Optimal Moving Magnet Actuator for Active Vibration Control Abstract: The need for fuel economy and emission restriction has led OEMs to put emphasis on different strategies which allow effective improvements in that field (engine downsizing, cylinder deactivation …). These new applications imply significant vibration increase, created by the engine and transmitted to [...]

Precise multi-pole magnetic component and manufacturing method thereof

Precise multi-pole magnetic component and manufacturing method thereof Abstract A method is proposed to manufacture a precise multi-pole magnetic component for using in magnetic encoders. A special layout of the circuit pattern is designed and formed on a printed circuit board (PCB). Alternate and regular magnetic field is induced according to Ampere's law after a [...]

Electro Holding Magnet – Things You Need to Know

Electro Holding Magnet – Things You Need to Know What Is A Holding Electromagnet? Holding electromagnets are used to attract and hold ferromagnetic pieces. The maximum force efficiency is achieved with the piece to be hold above the attraction’s face and in direct contact with both poles (outside pole and inside pole). How Does A [...]

Electromagnetic Transmissions Solenoids Holding Magnets

Electromagnetic Transmissions Solenoids Holding Magnets Solenoids for simple operation Single-acting solenoids are for common applications. The magnetic field delivered by the coil upon power-up attracts the core. Then, the nucleus becomes free again in the absence of current. They are thus available in different designs, folded sheet, square profiled, machined in the mass. Solenoids for [...]

Energise to Hold Electromagnets

Energise to Hold Electromagnets / standard Electromagnets / Solenoid/Electromagnet Electrical current is required to turn the magnet ON. Power is removed to turn the magnet OFF. Pull force conversion (approximate): 1kg = 10N = 2.2lb. The outer shell of the electro magnet is a sturdy bright nickel plated cylinder, passivated with body mounting. Designed for [...]

TECHNICAL EXPLANATIONS FOR ELECTROMAGNETIC HOLDING MAGNETS

TECHNICAL EXPLANATIONS FOR ELECTROMAGNETIC HOLDING MAGNETS Our products conform to the production standard DIN VDE0580 and are RoHS-compliant. TYPES OF HOLDING MAGNET Electromagnetic holding magnets: The ferromagnetic part is held in place on the holding magnet’s attraction surface when power is supplied to the coil. When the holding magnet is not powered, the electromagnetic force [...]

3D electromagnetic analysis and experimental verification of multi-pole magnetization BLDC motor

3D electromagnetic analysis and experimental verification of multi-pole magnetization BLDC motor ABSTRACT This paper presents a quasi-3D electromagnetic analysis of the multi-pole magnetization BLDC motor. The permanent magnet (PM) of a multi-pole magnetization BLDC motor has several poles in a magnet. The polar separation section of the multi-pole PM is implemented through the magnetization pattern [...]

Solenoids

Electromagnet or solenoid are general terms for all types of electromagnetic actuators. Basically, electromagnets or solenoids are devices that generate a magnetic field by means of an energized coil, guiding it through suitable iron parts with air gap. Here, magnetic poles are created inbetween which a magnetic force of attraction, the magnetic force, prevails. If [...]

What is Microstepping?

What is microstepping? Microstepping is a method of controlling stepper motors, typically used to achieve higher resolution or smoother motion at low speeds. Stepper motors move in discrete steps, or fractions of a revolution. For example, a stepper motor with a 1.8 degree step angle will make 200 steps for every full revolution of the [...]

Differences Between Various Stepper Motors

Differences Between Various Stepper Motors, Stepper motors: Differences between permanent magnet, variable reluctance, and hybrid types Stepper motors are commonly used in linear motion applications for their precise positioning capabilities and good holding torque. And while the basic operating principle is the same for all stepper motors, there are differences in operation and performance between [...]

How Electromagnets Work

How Electromagnets Work What do a wrecking yard, a rock concert and your front door have in common? They each use electromagnets, devices that create a magnetic field through the application of electricity. Wrecking yards employ extremely powerful electromagnets to move heavy pieces of scrap metal or even entire cars from one place to another. [...]

Importance of Magnet Drawings for Magnet Manufacturer

Importance of Magnet Drawings for Magnet Manufacturer Magnet Product drawings, i.e. product processing drawings, are also needed for magnet products, especially for some complex magnets, such as special-shaped magnets and motor magnets. Because the production process of magnet is very complicated, it involves many factors. For example, the performance of magnets, dimensional tolerances, magnetic force [...]

Advantages and Physical Properties of Injection Molded NdFeB Magnets

Advantages and Physical Properties of Injection Molded NdFeB Magnets Compared with sintered NdFeB magnets, injection molded NdFeB magnets have stronger corrosion resistance, are not easy to crack and fracture, and do not need cutting and other mechanical processing. The products have high yield, high tolerance precision after molding, smooth surface, good internal uniformity, uniform surface [...]

Principle of Magnet Attraction and Repulsion

Principle of Magnet Attraction and Repulsion Now that more and more people are using magnets, we want to start with some basic questions.How do magnets attract each other?How do they repel? The magnets written in middle school physics books have S poles and N poles. If the S poles or N poles of two magnets [...]

Introduce Main Causes Aging of NdFeB Magnets

Introduce Main Causes Aging of NdFeB Magnets Aging, I believe you are not unfamiliar, mechanical equipment components will have aging, as for speed, depending on the protection situation, Nd-Fe-B permanent magnets will also be aging, then what are the reasons affecting the aging of NdFeB strong magnets? Introduce Main Causes Aging of NdFeB Magnets [...]

Determine the Thickness of Magnetic Steel in Motor

It is important to determine the thickness of magnetic steel in motor? Why? Today, the supplier of motor magnet will tell you how important it is. We all know that the magnetic field of the motor is mainly generated by the magnetic steel of the motor (Arc magnet, Multi-pole magnetic ring). The working magnetic flux [...]

What Type of Magnet is Used in Medical Equipment?

What Type of Magnet is Used in Medical Equipment? For a long time, magnets have been a key component of many different medical technologies. Of course, the most famous technology is magnetic resonance imaging (MRI), which was first developed in the 1970s and 1980s. In addition, magnets can be found in many other medical devices, [...]

Factors Affecting Magnetic Force of Permanent Magnets

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 [...]

Rare earth element (REE) Nd-Fe-B and Sm-Co permanent magnets

Rare earth element (REE) Nd-Fe-B and Sm-Co permanent magnets Rare earth element (REE) established Nd-Fe-B and Sm-Co permanent magnets are widely used due to their excellent magnetic properties. An electric car like GM''s Chevrolet Volt utilizes seven pounds of rare-earth magnets, while every clean-energy wind turbine uses over 600 pounds of neodymium (Nd). China accounts [...]

Neodymium Round Disc Magnets

Neodymium Round Disc Magnets About These And Other Neodymium Disc Magnets In This Category Magnets are useful and fun, but can also be dangerous if they aren't handled properly. Little magnets should always be kept away from small children and pets, as they can cause serious harm if they're swallowed. Very strong magnets, like neodymium [...]