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Example of a magnet motor design. The predominantly attracting orientation of the magnets apparently leads to a perpetual rotary motion. A hypothetical magnet motor works with permanent magnets in stator and rotor. By a special arrangement of the attracting and repelling poles, a rotational movement of the rotor is supposedly permanently ...
Alnico is a NRE permanent magnetic material used in permanent magnet motor applications such as magnetic speed and flow sensors, electric generators, and consumer goods. These magnets exhibit weaker performance in comparison to NdFeB and SmCo counterparts but still maintain high coercivity and are far cheaper due to their lack of rare earth metals.
The screw and magnet spin, with the screw tip acting as a bearing. A homopolar motor is a direct current electric motor with two magnetic poles, the conductors of which always cut unidirectional lines of magnetic flux by rotating a conductor around a fixed axis so that the conductor is at right angles to a static magnetic field.
The Lynch motor is built from ferrite blocks sandwiched between strips of metal, instead of conventional copper coil windings, and is held together purely by magnets. The motor is available in several sizes from 3 kilograms (6.6 lb) to 11 kilograms (24 lb) weight and provides a power of 1.5 kilowatts (2.0 hp) to 11 kilowatts (15 hp) within an ...
This helps with field confinement, usually a problem in the design of magnetic structures. Thus they have a surprising number of applications, ranging from flat refrigerator magnets through industrial applications such as the brushless DC motor , voice coils , [ 7 ] magnetic drug targeting [ 8 ] to high-tech applications such as wiggler magnets ...
The rotor is made of permanent magnet. Small synchronous motor with integral stepdown gear from a microwave oven. A synchronous electric motor is an AC electric motor in which, at steady state, [1] the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integer number of AC ...