Re: Magnetic Field in a Flat Spiral

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

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Ralph,

In the case of my big coil with its Sonotube coil form, humidity in the
cardboard seems to have a dramatic effect on the Q.  Paul's new program
that takes dielectrics like the form into account may shed new light on
this :-)

Cheers,

	Terry


At 09:49 PM 3/8/2002 -0500, you wrote:
>In a message dated 3/8/02 9:37:36 AM Central Standard Time, tesla-at-pupman-dot-com 
>writes:
>
>>  Even with care the method might only be 5% or 10%
>>  accurate due to the sensitivity to the small difference |f1-f2|.  Day
>>  to day variation of the Q is to be expected, for reasons which remain
>>  unexplored, I think.
>>  --
>>  Paul Nicholson
>
>Hi Paul,
>
>Can you explain the day-to-day variation a bit more?
>Also, I'm still trying to figure out "gobsmacked."  :-))
>
>Cheers,
>Ralph Zekelman
>