From: Paul
Date: Sat, 26 May 2001 00:27:44 +0100
Subject: Re: [TSSP] Toroid field stress
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.