Re: Measuring self-capacitance directly (Re: flat secondary)

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi Paul - 

Tesla list wrote: 
>
> Original poster: "Paul Nicholson by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <paul-at-abelian.demon.co.uk>
> Plenty of interesting experiments to do here: A direct measurement 
> of Les would be a good and easy start, to demonstrate that it really 
> is that much higher than Ldc.




What is the preferred method for checking Les? 

>
> For a more challenging experiment: 
> Measure the current profile of a rim-fed flat spiral, to see if it 
> matches the predicted curve.  This would require a specially 
> constructed coil, with about 10 or so series tapping points, through 
> which small resistors can be inserted in series with the coil.




I'm envisioning that a flat coil is wound and connected in series during the
winding process are resistors at some predetermined position, including
something like a small pin sticking up at the resistor in which metering can be
performed. If so, would ideal resistor positioning be something like every 10%
of the radius? 

Take care, 
Bart