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Capacitance of a cylinder coil
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From: Jim Lux [SMTP:jimlux-at-earthlink-dot-net]
Sent: Tuesday, April 07, 1998 2:51 PM
To: Tesla List
Subject: Re: Capacitance of a cylinder coil
>
>
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> From: Antonio C. M. de Queiroz [SMTP:acmq-at-compuland-dot-com.br]
> Sent: Monday, April 06, 1998 6:18 PM
> To: Tesla List
> Subject: Re: Capacitance of a cylinder coil
>
> Erik wrote:
>
> > Self Capacitance of an air core coil
> > Medhurst formula
>
> Try also this, due to Medhurst too:
>
> C=11.26*length+16*radius+76.4*radius^(3/2)/length^(1/2) pF
>
> Distances in meters. Note that the number of turns doesn't appear.
>
Antonio,
Is that for a closewound or a spacewound coil? I assume it is some sort of
empirical curve fit to the tabular data, much as the Wheeler equations are
an empirical fit to inductance data.
Antonio Carlos M. de Queiroz
> http://www.coe.ufrj.br/~acmq
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>