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Electromagnets are designed with ejector pins to enable them to overcome the problems of residual magnetism occurring when power to the device is switched off. A new range of electromagnets from Geeplus have been designed with ejector pins to enable them to overcome the problems of residual...

...current method is also useful in sorting alloys and verifying heat treatment. Eddy current testing uses an electromagnet to induce an eddy current in a conductive sample. The response of the material to the induced current is sensed. Since the probe does not have to contact the work surface, eddy current...

A novel high temperature hybrid radial magnetic bearing capable of operating at 538°C (1000°F)was developed. High temperature permanent magnets are used to carry the majority of the staticrotor weight, instead of a magnetic bearing coil or electromagnets, in the newly designed hybridmagnetic...

...in contact with a ferromagnetic surface, developing a powerful attracting force to the surface. EM (ElectroMagnet) devices comprise a magnetic armature, usually in the form of a mild steel pot, into which a coil is fitted, such that magnetic flux flows when the coil is energised. The flux path...

(electromagnet) to drive the hammer, as is shown in Figure 1....

...magnetic contactors and remote-operated controllers. These switches must be ruggedly constructed because they are frequently exposed to oil, solvents, chemicals, and dust. And their contacts must handle the high inrush current drawn by electromagnets in the controllers. Industrial switches are available...

...designed for a variety of industries. Where rolling-element bearings support shafts and other rotating components on balls or needles, magnetic bearings use stationary electromagnets positioned around the rotating components. Magnetic fields suspend the rotating parts within the bearings. Typically...

...motors are simple. Two main components, the primary containing electromagnets and the secondary either with permanent magnets or magnet-free, drive the moving member. This eliminates servomotors, resolvers, tachometers, couplings, pulleys, timing belts, ball screws and nuts, support bearings...

...and fail-safe buoyancy controls. In the event of a power failure, electromagnets automatically release all ballast 10 tons of pellets and the ship...

...that of stepmotors because coils in the stator serve as electromagnets that attract the nearest rotor poles. One important difference between an SR motor and a stepper is that a stepper operates open loop. The rotor follows the magnetic field of the stator, but there is a possibility the two could get...

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