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Why & How Do Headphones Use Magnets?

Why & How Do Headphones Use Magnets? Magnetic materials and magnetic fields are all around us, but it may come as a surprise to you that the headphones you’re wearing have magnets, too! Why & How Do Headphones Use Magnets? Headphones act as transducers of energy, converting electrical energy (audio signal) into mechanical wave energy [...]

Magnets In Loudspeaker Drivers

Magnets In Loudspeaker Drivers Magnets In Moving-Iron Loudspeaker Drivers The moving-iron loudspeaker was the first effective electromagnetic loudspeaker design. Today, the design is pretty well relegated to balanced armature headphone drivers, but this driver type is still worth mentioning. Let’s have a look at the balanced armature headphone driver design to explain the magnets of [...]

Why And How Do Speakers Use Magnets & Electromagnetism?

Why And How Do Speakers Use Magnets & Electromagnetism? Magnetic material and magnetic fields surround us in our day-to-day lives, from the refrigerator magnets to the Earth’s magnetic field to the speakers in our homes, on the stage, in our cars, etc. Why and how do speakers use magnets? Speakers are transducers of energy that [...]

Big Magnets Make For Better Loudspeakers

Big Magnets Make For Better Loudspeakers Everybody who listens to audio, whether music, podcasts, movies or other media, depends on speakers. From standalone loudspeakers and monitors to headphones and earphones to built-in laptop and cell phone speakers, it’s clear that speakers vary significantly in size. With most speakers being electromagnetic, it begs the question: do [...]

Loudspeaker, Headsets, Woofer Magnets

Loudspeaker, Headsets, Woofer Magnets A loudspeaker is an electroacoustic transducer which converts an electrical audio signal into a corresponding sound. Magnets are widely used for loudspeaker/headsets/woofer , it included AlNICO , NdFEB and Ferrite magnets and so on. Typical speaker NdFeB magnets for Loudspeaker/headsets/Woofer : D5*1.2mm D4.25*1.5mm D6.5*2.0*1.5mm D9.5*1mm 8.9*1.8*0.8mm D12.5x2mm D9.9x3.2x1mm D9.9x3.2x2mm Block3.2x2.2x1mm Typical [...]

Magnetic Reed Switches for Position Location

Magnetic Reed Switches for Position Location Stainless steel pneumatic cylinders that are equipped with an internal magnet can be used with the Reed Switch and GMR sensor. By accurately sensing the magnetic field of the piston when it passes beneath the sensor, its position is determined, and a feedback signal is created. GMR (Giant Magneto [...]

Pneumatic Cylinder Magnet

Pneumatic Cylinder Magnet It is essential to monitor the motion processes in pneumatic cylinders. The permanent magnet mounted on the piston inside the Pneumatic cylinder . The Magnetic cylinder sensors contactlessly detect the piston position of the cylinders and give a switching signal . HSMAG Magnet Co., Ltd Available typical magnet rings for Pneumatic Cylinder [...]

Rotary Encode Magnet

Rotary Encode Magnet / Sensor Magnets(Encoder /Multipole Magnets) Encode magnetic rings is a type of plastic ferrite magnet. The plastic ferrite magnet will be magnetised with 1 mm , 2 mm,3mm pole pitch which form an incremental magnetic pattern. The magnetic incremental rings bring reliable solutions to tough, hard-working applications including spindles, lathes, other machine [...]

Magnet Gear / Magnetic Wheel

Magnet Gear / Magnetic Wheel Magnet Gear also known as the magnetic wheel, is the principle of interaction between magnet attraction and repulsion. Non-contact power transmission. Magnetic gears are products that are driven in a clean environment in a non-contact state. An alternative to mechanical gears driven by friction. Magnetic wheels can fundamentally put an [...]

WHAT is Sintered Neodymium?

WHAT is Sintered Neodymium? Neodymium magnets are the most widely used magnetic materials available today. The processing of sintered NdFeB magnet is powder metallurgy. Due to its high Remanence, Coercivity, energy product, small size, light weight, and other special characteristics, the sintered NdFeB magnet can be widely used besides in electro-acoustic components, medical devices, sensors, [...]

Rare Earth Metals -12 Things You Didn’t Know

Rare Earth Metals -12 Things You Didn’t Know 12 Things You Didn’t Know About Rare Earth Metals They’re Not That Rare. Most of the rare earth metals really aren’t that rare. Cerium (Ce) is the most abundant rare earth metal, followed by Lanthanum (La), and then Neodymium (Nd). Cerium, Lanthanum and Neodymium are all more [...]

Rare Earths Members

Rare Earths Members Neodymium (Nd) is the element after which Neodymium magnets are named. Praseodymium (Pr) is so close to Neodymium (Nd) that it is used in Neodymium magnets. Pr is right next to Nd on the periodic table and it's properties are very similar to those of Nd. So similar that about 25-35% of [...]

Tiny NdFeB Magnets in Smartphones and Personal Electronics

Tiny NdFeB Magnets in Smartphones and Personal Electronics Small Tiny NdFeB Magnets in Smartphones Neodymium (NdFeB) magnets are an invisible part of every smart phone. These tiny magnets are critical to the function of the phone, working quietly behind the scenes inside the phone case. These internal magnets are typically used in the speaker, receiver, [...]

New Process Takes Simpler Approach to Rare Earth Magnet Recycling

New Process Takes Simpler Approach to Rare Earth Magnet Recycling A new recycling process developed at the U.S. Department of Energy’s Critical Materials Institute (CMI) turns discarded hard disk drive (HDD) magnets into new magnet material in a few steps, and tackles both the economic and environmental issues typically associated with mining e-waste for valuable [...]

Honda to Use New Neodymium Magnet in Hybrid Vehicles

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 [...]

Sintered Nd-Fe-B Magnet – The Best Way To Identify Quality

Sintered Nd-Fe-B Magnet - The Best Way To Identify Quality The sintered Nd-Fe-B Neodymium magnet is one of the essential materials in pushing the progression of modern technology and the development of our society. Its applications widely cover most areas we encounter: hard drives, electric cars, industrial permanent magnetic devices, and consumer products such as [...]

What Are Neodymium Speakers?

What Are Neodymium Speakers? Neodymium is an element with specific characteristics that make it particularly well suited for use in speakerconstruction. Speakers operate by using a magnetic field to generate motion in a coil and speaker cone to project an amplified sound signal. In neodymium speakers, the rare-earth element is used as the primary material [...]

Microwave Magnet Generator

Microwave Magnet Generator AUTHOR Allan FROM HSMAG CUSTOMER As I promised quite some time ago,I have finally found the time to get back to work on this generator. This is the dual stator,with 96 magnets on 3 plates(1/2" tk.) Test on a single coil has produced 12Vac with .8 ohms resistance, this was tested in [...]

What Causes The Microwave Magnet To Fail

What Causes The Microwave Magnet To Fail At some time throughout the cooking process, every microwave has had the difficulty of not warming the foods inside the oven. However, have you considered why this is the case? What causes the microwave magnet to fail? If you already know the solution, that’s because the magnet in [...]

In Microwaves, What Kind Of Microwave Magnets Are There

In Microwaves, What Kind Of Microwave Magnets Are There Your old microwave includes some electronics worth saving, but the true prize is the magnetron’s two rather powerful ring microwave magnets. It takes some effort to obtain them, but it is well worth the effort. The microwave magnets are quite brittle, so don’t try to force [...]

How To Remove Microwave Magnets In Microwave Oven

How To Remove Microwave Magnets In Microwave Oven How To Take Out The Magnets From Your Microwave What You’ll Need To Get Started To disassemble a microwave, you’ll need tools; your bare fingers won’t suffice. A collection of screwdrivers of various sizes and shapes. Cutters for wire. Pliers. Clip with an alligator. Hammer (you’ll only [...]

How are Magnets Used in Microwaves “The Magnetron”?

How are Magnets Used in Microwaves “The Magnetron”? Imagine that you’ve had a long day at work, and afterwards you hop in your car and blast your favorite song, then return home to toss your favorite frozen dinner in the microwave. Believe it or not, but all of this wouldn't be possible without magnets. The [...]

How Are Neodymium Magnets Made?

How Are Neodymium Magnets Made? Neodymium magnets are made by a sophisticated process that includes some very high-tech metallurgical methods comprising powder metallurgy and advanced process metallurgy. Dozens of process steps must be followed very precisely to make Neodymium magnets –also known as NdFeB -for the chemical symbols of Neodymium, Iron and Boron. Process variations [...]

Difference Of Galvanized and Nickel-plated Magnets

Difference Of Galvanized and Nickel-plated Magnets The most commonly used coatings for NdFeB magnets are galvanized and nickel-plated. They have obvious differences in appearance, corrosion resistance, service life, and price. Polishing difference: nickel plating is superior to zinc plating in polishing, and the appearance is brighter. Those with high requirements for product appearance generally choose [...]

NdFeB Grade N38H

NdFeB Grade N38H Magnetic Performance Thermal performance Demagnetization curve introduction There are many grades of neodymium magnets. For details, see the performance grade table of sintered neodymium iron boron magnets. Today we mainly introduce the 38H performance grade, including its magnetic performance, thermal performance, and demagnetization curve. I hope it will be helpful to those [...]

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