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A new idea? ...different geometries in coil construction more efficient?



Original poster: "Matt Woody Meyer by way of Terry Fritz <twftesla-at-qwest-dot-net>" <meyerml-at-stolaf.edu>

Well, for once, I'm not going to bother you all with engineering questions
(not yet, anyway) :), but while putting off some E&M Field Theory homework,
I came up with something I wanted to run by you all...

I've been tinkering with primary coil inductance based on setting everything
else except the hypotenuse as variables wrt theta (angle of rise).  Looks
like the best inductance is right around 18.36 degrees (small peak).  Now
this isn't anything new, but, has anybody ever tinked around with coil
designs using a geometry other than a linear coil? (in essence, cones,
solenoids, spirals are linear in cross  section).  Although the engineering
could become a real pain in the rear with these different shapes, but maybe
there is something out there that could be more efficient than the common
shapes used.

Had the idea sitting in the back of my head for a while... wanted to start
looking at it after seeing that amazing flat secondary (amazing how good it
looks!)

Man, this stuff is so much more interesting than "the field of a polarized
object" :)

><>Matt