Re: Primary magnetic field plots

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Very cool Terry! Sucks however (slow dial-up and 35MB). I'll have to 
wait until Monday and download it at work. Looks like a fun tool. The 
field is more "compacted" around the rings than I had envisioned (the 
magnified gif is what I expected). I guess now a matter of knowing 
the field strength reaching down to the MOT. The MOT's influence 
under power is yet another source of EM and the interaction will be 
interesting.

Thanks for the Maxwell 2D source.
Take care,
Bart

Tesla list wrote:

> Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi,
>
> For my little SISG coil, I got the Ansoft Maxwell 2D thing going:
>
> http://www.ansoft.com/maxwellsv/
> http://coolmagnetman.com/basic_user_manual.pdf
>
> Here are the flux lines of the coil set up with the MOT under the 
> coil and a fan to the right side:
>
> http://drsstc.com/~sisg/files/SISG-coil/Field-Flux.gif
>
> Very few flux lines make it up to the top terminal and the aluminum 
> fan seems to be transparent to magnetic flux.  The big iron 
> transformer bends the lines around.
>
> We then can look at the B field (in Teslas ;-))
>
> http://drsstc.com/~sisg/files/SISG-coil/Field-B.gif
>
> The transformer attracts some of this field and is energized by it slightly.
>
> The plot of field energy is where the "power" is at:
>
> http://drsstc.com/~sisg/files/SISG-coil/Field-Energy.gif
>
> The power stays "very close" to the primary coil turns.  That is why 
> those big metal things in the area of the primary do not affect 
> things much.  If we increase the sensitivity, we can see more detail:
>
> http://drsstc.com/~sisg/files/SISG-coil/Field-Energy-1.gif
>
> The energy still clings very close to the primary but you can see it 
> touching the secondary now.  If we really turn up the magnification, 
> you can see the transformer having a tiny effect:
>
> http://drsstc.com/~sisg/files/SISG-coil/Field-Energy-2.gif
>
> Sort of cool!!
>
> Cheers,
>
>     Terry