From: "Terrell W. Fritz"
Date: Sat, 26 May 2001 11:51:50 -0600
Subject: Re: [TSSP] Toroid field stress
Hi Paul,
Thanks for the demensions. I set it up and ran it and got 9200 Volts/cm
with 400kV on the toroid.
http://hot-streamer.com/temp/MarcoCoil/Marco-a.gif
The data files are at:
http://hot-streamer.com/temp/MarcoCoil/
That is a little short of the 26kV/cm we were looking for. I have not used
the stress stuff much but I think it works properly. There could be a bug
in it... Or the grid is too choppy to show the actual tiny stresses at the
surface.
Cheers,
Terry
At 12:27 AM 5/26/2001 +0100, you wrote:
>Terrell W. Fritz wrote:
>
>> I have no idea how much space there is between to top of Marco's secondary
>> and the centerline of his toroid so I am guess there. I think I got the
>> toroid cord diameter wrong too...
>
>Chord looks a little small, I use
>
>toroid {
> outer_radius 0.7575 ; Distance from center to outer rim.
> inner_radius 0.5575 ; Distance from center to inner rim.
> altitude 2.85 ; Distance of center above ground plane.
>}
>
>ie, a chord of 20cm,
>
>secondary {
> radius 0.20 ; Radius of coil
> length 1.575 ; Length of coil
> altitude 0.995 ; Distance of base of coil above ground plane.
> inductance 0.0802 ; The measured inductance, for info only.
>;; use_lundin ; Ignore the given inductance and use the lundin
>formula
> turns 939
> resistance 11.2 ; Measured resistance at DC.
> conductor_radius 0.725e-3
>}
>
>From top of secondary to plane of toroid is
> 2.85 - (0.995 + 1.575) = 28cm
>
>So chord = 7.874", top of coil to toroid = 11.02"
>--
>Paul Nicholson,
>Manchester, UK.
>--
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.