How to Choose Permanent Magnets? 3 KEY PARAMETERS TO CONSIDER WHEN CHOOSING A PERMANENT MAGNET Every type of permanent magnet has a unique set of characteristics that can affect how is performs in various applications. When evaluating magnet options for your project, pay attention to the following...
A compass needle isn't nearly as strong as many of the permanent magnets used today. But the physical process that magnetizes compass needles and chunks of neodymium alloy is essentially the same. It relies on microscopic regions known as magnetic domains, which are part of the physical structu...
Magnets, gravity and filters then remove things like staples, glues and other unwanted chemicals from the pulp. The ink is removed by either a chemical wash, or by blowing the ink to the surface where it's skimmed off. The pulp -- which may be bleached -- is then sprayed and rolled ...
In a rollercoaster ride, you might have a series of powerful, permanent magnets permanently mounted at the end of the track, which produce eddy currents in pieces of metal mounted on the side of the cars as they whistle past. The cars move freely along the track until they reach the very...
In this motor, it's formed by the can itself plus two curved permanent magnets. In DC motors, the armature is the rotor, and the field is the stator. Rotor, Commutator and Brushes The contacts of the commutator are attached to the axle of the electromagnet, so they spin with the ...
As the permanent magnets on the outer rotor sweep past them, the Hall-effect sensors figure out where the north and south magnetic poles of the rotor are and which coils to activate to make it keep spinning. The trouble with this is that it means the motor does need an electronic circuit...
Unfortunately, since a degausser interacts with the drive's magnetic field and disrupts it in its entirety, the drive is rendered useless. The only thing you can do with it after the fact is recycle or discard it. Unless you have powerful neodymium magnets lying around the house somewhere, ...
Permanent magnet Marker Piece of metal TL;DR (Too Long; Didn't Read) You can also go all out and create an electromagnet out of your metal that will create a magnet field that will either be attracted by or repelled by other magnets. To make an electromagnet out of your metal, wrap ...
The administration hasalso excluded“smartphones, computers, and other electronics” from the tariffs, but it later said that exemptionwon’t be permanent. These tariffs are in addition to the ones he imposed earlier this year on goods from some of the US’s biggest trade partners: Canada, Me...
If the car travels faster, the permanent magnet inside the speed cup will rotate faster, which creates a stronger magnetic field, larger eddy currents and a greater deflection of the speedometer needle. If the car slows down, the magnet inside the cup rotates more slowly, which reduces the ...