A synchro needs AC excitation. A permanent magnet rotor doesn’t work as a synchro because it doesn’t induce any current at zero RPM. In a synchro pair, both rotors are AC excited by the same ...

One is the availability, at relatively moderate cost, of copper-oxide-based superconducting tape, which is being produced by ...

Advantages Of BMW’s Rotor Design. BMW says its rotor design holds several benefits: Optimized magnetic flux flow; A reduction in stray fields; Secure magnet placement with no radial movement ...

Experiment Electric Motor of Magnetic Rotor in Motion Subscribe!

As you can see in the video above, the helicopter appears ready for takeoff, but soon, it starts vibrating haphazardly, ...

The rotor in a typical brushless motor incorporates a four-pole permanent magnet and a smaller “sensor” magnet. The stator, on the other hand, consists of a three-phase, Y-connected winding ...

In induction motors, conductors such as copper or aluminum are wound or embedded within the rotor’s steel laminate cylinder, and the stator’s AC current induces the rotor’s magnetic field. A permanent ...

“These magnet rotors, or motor rotors, result from injection molding molten plastic and powder magnet composites, orienting them in a magnetic field similar to that of a Halbach array to ...

Electric machines have been around for over 150 years, with the understanding that, the bigger the appliance or vehicle, the larger the copper coils and the magnetic rotor, making the machine heavier.