Re: toroid question

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Ben McMillen by way of Terry Fritz <twftesla-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>

Couldn't you just say that one shorted turn out of 800 -
1000 turns really doesen't make much noticeable difference?
Just a thought.. 

Ben McMillen

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Malcolm Watts by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>
> 
> Hi Allan,
> 
> On 27 Jan 2002, at 23:30, Tesla list wrote:
> 
> > Original poster: "Allanh by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> <allanh-at-starband-dot-net>
> > 
> > It has occured to me that using a toroid with no
> conducting material in the
> > center in effect places a
> > shorted turn in the magnetic field and would cause
> > very high current to flow. Upon testing my theory on
> > my coil, I found very little difference in the two
> types.
> > I would like to know why the shorted turn toroid
> doesn't
> > consume great quantities of power.
> > 
> > any ideas?
> 
> Why should having no conducting material in the centre be
> worse? You 
> could view either form of construction as being a shorted
> turn, 
> possibly worse in the case of a central conductor since
> it is closer 
> to the windings. In fact, the requirement for anything to
> consume 
> power is that it must be somewhat resistive. Most
> terminals are close 
> to perfectly conducting. There can't be much doubt that
> the 
> arrangement modifies the operating properties of the
> resonator to 
> some degree, but then connecting something to the top of
> the windings 
> does that anyway. Since cutting a slit in the toroid so
> that a 
> shorted turn no longer exists has little effect on Fr (it
> tends to go 
> up a bit if you do this), it must be telling you
> something about the 
> way the resonator operates (how currents are distributed
> for example) 
> and how the two interact. I'm not sure if this has been
> covered in 
> the tssp project yet. Perhaps Paul Nicholson might care
> to comment?
> 
> Regards,
> Malcolm
> <snip>
> 
> 
> 
> 


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