RE: [TCML] Primary Generated Field and Coupling Coefficient

["Jim Mora" <wavetuner@xxxxxxxxx>]

Hi Andrew,
Goto http://www.classictesla.com/ (requires Java). Run JavaTC. All will be
revealed! Great Program.
Jim Mora

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Andrew Robinson
Sent: Tuesday, July 07, 2009 2:39 PM
To: tesla@xxxxxxxxxx
Subject: [TCML] Primary Generated Field and Coupling Coefficient

Has anyone ever mapped out the fields produced by the three different 
primary coils? Is so could you PLEASE send me a link to some images or 
results. What factors determine the primary geometry thats best suited 
for a coil. It seems there are a lot of helical primaries on big coils, 
and flat pancake primaries on medium coils. Do inverse conical primaries 
achieve better efficiency? Ultimately the transfer between coils is 
dependent on the change of flux, but it seems situating the secondary in 
a region of closer field lines will ultimately achieve better 
efficiency. Helical primaries tend to produce vertical field lines much 
like an ideal solenoid, whereas flat pancake primaries produce a more 
torus shaped field (Just off top of my head) The inverse primary seems 
to be a good middle man between the two.  Finally, can someone point me 
towards the formula to determine coupling coefficient? I've heard ideal 
is between .05 and .2. I need a formula to determine where I sit 
currently in order to make adjustments. Thanks

~Andrew
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