Hi All,
Continuing my ideas for an alternative style of alternator.
(see: http://www.fieldlines.com/story/2004/6/10/104827/029 )
Unless anyone can say "it's been done before, it's called a..." then I'd like to name this type of alt as a 'Raxial alternator', being cpable of generating electricity in a coil either radially or axially (or both).
The diagram below represents 12 1"x1/4"x1/4" neo block magnets radially opposed, set in a non ferrous rotor.
And here's the rotor. 12 neos superglued into 2mm x 3 ply acrylic (6mm thick).
The images below show the flux lines for the rotor.
For the initial testing I used a coil of 100 turns, 24SWG wire (approx 6x6mm leg) and spun the rotor up by hand.
200rpm yeilds 0.3v AC open and 0.2A AC shorted
Now the dilema I face...
Which coil setup should I go for?
8 coils per side, 4 phases of 4 coils each.
6 coils wrapped over, single phase.
8 coils wrapped over, 2 phases of 4 coils each.
Any suggestions?
or should I try 'em all?
And does anyone have any pointers about eddy currents, what they are, what causes them, how they affect output, etc.?
thanks
paul