Electromagnets are used in ceiling fans, in the fans installed inside computers and in generators. The fields generated by compact and efficient magnet structures requiring no continuous expenditure of energy can be static or variable, uniform or nonuniform. When you have collected the objects on the ground, you can pull up the sting from the bottle, and it will put the objects on the place you need them, maybe in a box - and that is how you make your own magnetic collector. Very simply, two permanent magnets are placed opposite one another, with like sides facing. Door locks: Doors in public or commercial spaces are often used as fire doors or fire doors. Unknown May 1, 2012 at 5:52 AM … Permanent magnets are magnets permanently and are different from those which behave like magnets only when electric current is passed through them. Many open MRI devices used in hospitals use large permanent magnets that literally save lives. The function of permanent magnets in different appliances and instruments is usually one of the following: to convert mechanical energy to electrical energy. If you want to erase any data and make it irrecoverable all you have to do is run a magnet over it. Permanent magnets are objects made from a material that is magnetized, which creates its own persistent magnetic field. A wide variety of permanent magnets uses options are available to you, such as material, certification, and type. Sm-Co magnets are also known as Sm-Co permanent magnets, Sm-Co permanent magnets, Sm-Co strong magnets, rare earth cobalt permanent magnets and so on. Permanent magnets retain their magnetism and are used for various purposes. An EPM uses only a pulse of current to magnetize one of the magnet in a desired direction (turning on and off the external magnetic field of the latch). This is in stark contrast to temporary magnets, which do lose their magnetic strength. x 2 inch thick, BC21 Neodymium Magnets, 3/4 inch x 1/8 inch x 1/16 inch thick, BZ0Y04 Neodymium Magnets, 3 inch x 2 inch x 1/4 inch thick, D-D12.7H6.35/Y Neodymium Magnet, 12.7x6.35mm Disc Magnet, DZ0E Neodymium Magnets, 3 inch dia. Your e-mail address stays with us (will not be passed on to third parties). To “pin” an object on a magnetic board. This property is used in storage technology. Generators do the opposite. Magnets have a north pole and a south pole. These motors control the power windows and windshield wipers of your car. They convert mechanical energy into electrical energy. These magnets are an alloy of neodymium, iron, and boron. This energy is then used for various applications from pumping water to drilling. Part of the content in this article is reproduced from other media for the purpose of transmitting more information and does not mean that this website agrees with its views or confirms the authenticity of its content. In applications where the ionizing radiation levels can be kept reasonably low, the material of choice is neodymium iron boron due to its high remanent field. Magnets are used for … Quiz . Some (smaller) DC motors do in fact use permanent magnets, as it’s cheaper to get a small magnet than it is to install another core and set of windings and wiring to support it. Contact to IMA. In the recent years, specific attention is being devoted to fit, where possible, permanent magnets in new projects either in case of consolidation or for the upgrade of existing accelerators and experimental areas. Magnets are our expertise and we have specialised in the online sale of very powerful magnets and magnetic pockets of the highest quality on the market (since 2007). Their repelling forces rotate a turbine, which then turns a piece of equipment known as an armature. Like poles repel from one another, while unlike poles attract. The purpose of a permanent magnet is to produce flux in the working gap of a device. VAT-no. Also, the actual refrigerator doors stay closed because of magnets in the door frames. MRIs use powerful magnetic fields to generate a radar-like radio signal from inside the body, using the signal to create a clear, detailed picture of bones, organs and other tissue.