Re: Formulas wanted!(toroid, helical)

• To: tesla-at-poodle.pupman-dot-com
• Subject: Re: Formulas wanted!(toroid, helical)
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sun, 11 May 1997 23:59:14 -0500
• Approved: tesla-at-stic-dot-net

Subject:      Re: Formulas wanted!(toroid, helical)
       Date:  Mon, 12 May 1997 09:28:35 +1200
       From:  "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
Organization: Wellington Polytechnic, NZ
         To: tesla-at-pupman-dot-com


Hi Matt,
         You're gonna love this....

>   From:   tesla <tesla-at-ixx.se>
>     To:   tesla-at-pupman-dot-com
> 
> 
> Hi.
> 
> I'd like to get the correct formula for calculating the capacitance
> on a toroid terminal.

There isn't one for a toroid attached to a coil - yet!  We are 
working on it. When I get some more of the charting done, I think 
this one might be cracked at last. If you could see how many 
different sized terminals end up with the same capacitance when 
plonked on top of different sized coils....
    Think of it as being an extension of the coil (cylinder) and 
adding to its size.....

> I have the formula for calculating the inductance of a helical
> primary, but what means "Average radius" and "Average height".

For a helix, the height is pretty well fixed in concrete as is the 
radius.

Malcolm

> Where do i measure these averages??? Some sort of picture
> describing it would be very welcome.
> 
> 
> Thanx!!
> 
> //Matt
> 
>

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