Re: TC potential measurements

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>




I'm aware of Bill's 25 megaVolt claim, but if you run Antonio's magnifier
program he would find it might be hitting 2 mV max  --- and that might be
stretching things a bit.

Dr. Resonance



>
> Hi DC,
>
> At 06:21 PM 3/15/2005, you wrote:
>
> >Terry's planar antenna and a 200 kV DC power source gave us good
calibration
> >which we compared to the spark length measurement method.  We use a 7"
dia
> >Van de Graaff sphere for most of our measurements.  We used a 14" dia
sphere
> >for the large coils with toroids in excess of 4 ft dia.
> >
> >Values were in very close agreement.
>
> Glad you are enjoying the little plane antenna so much ;-))  For those
> interested, the details are here:
>
> http://hot-streamer.com/TeslaCoils/MyPapers/planant/waveant3.html
>
>
> >Even our Big Bruiser with it's 26 ft. long spark at 26 kVA was only
> >developing 865 kV!  We thought it was over a megaVolt but measurements
> >provided the truth.
>
> At first I worried that models were predicting such low voltages...  But
it
> proved to be correct....  In the case of Bruiser, just round to the
nearest
> MV :o)))  I think Bill's #13 is rated 25MV ;-))
>
> The DRSSTC makes streamer formation of low voltage little arcs building
> along a path formed by the previous arcs to form the big arc pretty
> obvious...  "Disruptive" or pulsed arcs are now well known to arc at far
> greater distance than the equivalent CW cases...
>
> Marco now seems to have achieved the real "holy grail" and has a system
> going that can directly measure TC output voltages at high bandwidth
> without loading down the coil oddly!!!
>
> >Ross Engineering also manufactures NBS standard traceable voltmeters
> >accurate from DC to 1 MHZ and potentials up to 1 million Volts.  Not
cheap
> >but very accurate.
>
> I "think" they are messed up by being near very high voltage AC
> fields...  The measurement active columns are not shielded to the extent
> need to be immune from high dV/dL near them...  But Marco an Paul seems to
> have things figured out (or they will real quick now ;-)).
>
> In a short time, we will have some very accurate data to ponder!!!  We
also
> have OLTCs and DRSSTC that can reproduce sparks to stunning accuracy and
> can be fiddled with quite independently of all those things that used to
> annoy us so much!!
>
> But now worries.  It will still be some time before National has a TC in a
> 16 pin DIP ;-)))
>
> Cheers,
>
>          Terry
>
>
>
> >Dr. Resonance
>
>
>