It’s not that a wider gap translates to a weaker magnetic field. For a given load a wider gap actually translates to a stronger magnetic field. So if your gap is say 1 mm now, more powerful magnets would produce a 2 mm gap or whatever for the same load. As long as there’s a gap there is levitation. It’s the levitation that’s the issue not the flux density of the mag field per se. Hel-looo!
interesting article on mag lev for audiophile applications, see link below:
http://www.gcaudio.com/products/reviews/infomagix.html
interesting article on mag lev for audiophile applications, see link below:
http://www.gcaudio.com/products/reviews/infomagix.html