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Applications of Permanent Magnets
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Permanent magnets have a variety of uses. Most people would be surprised by the uses of magnets in
everyday life. Every time you drive your car, magnets are being utilized to help you perform certain
operations. Magnets are used in permanent magnet motors. These motors control the power windows and
windshield wipers of your car.
Permanent magnets are used in the following major groups: acoustic transducers, motors and generators, magneto mechanical devices, and magnetic field and imaging systems. You will find permanent magnets in many products, such as televisions, telephones, computers, audio systems and automobiles. A lot of sensors cannot work without magnets. Take position and displacement sensors as examples, magnetostrictive and magnetoresistive sensors need magnets as position giver. These sensors are applied to robotics, automation machines and machine tools etc. Many electric motors, generators and measuring instruments cannot work without permanent magnets. Alnico magnets are used in radar and telephones. They even play an important role in amplifiers and loudspeakers. Ceramic magnets are great for performing attraction and repulsion experiments. Ceramic magnets are even used on lawnmowers. Rare earth magnets such as NdFeB can ruin computer monitors, media and even credit cards. They are often used for physics education or research in the electrical engineering. |
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| Information on Rare Earth Permanent Magnets | |
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