Tricks, tips, tutorials, pictures and words

Halbach array

Halbach arrays can also be constructed in a circular arrangement. This lends itself to applications with motors and generators, and such designs have already been patented. The opportunities for the home remote power enthusiast are limitless! We have not even begun our work in this direction...but we sure hope others are interested too.
Halbach Array
ABC_TechNote-067_2.pdf (application/pdf Object)
When the Inductrack's train cars move forward, the magnets in the Halbach arrays induce currents in the track's coils, which in turn generate an electromagnetic field that repels the arrays. As long as the train is moving above a low critical speed of a few kilometers per hour-a bit faster than walking speed-the Halbach arrays will be levitated a few centimeters above the track's surface.
Sci Amer page 02