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Re: Non-Linear Coil Winding Experiment.





---------- Forwarded message ----------
Date: Mon, 13 Oct 1997 07:37:23 -0400 (EDT)
From: "Mark S. Rzeszotarski, Ph.D." <msr7-at-po.cwru.edu>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Non-Linear Coil Winding Experiment. 

Hello All,
        Terry said in part:
>	I have been experimenting with different types of coil windings.
<snip>
>The results are as follows:
>
>Coil #1
>	F0 = 1597.6 kHz
>	Inductance = 2.07 mH
>	Self Capacitance = 4.79 pF
>
>Coil #2
>	F0 = 1815.7 kHz
>	Inductance = 2.16 mH
>	Self Capacitance = 3.56 pF
>
>Coil #3
>	F0 = 1829.0 kHz
>	Inductance = 2.31 mH
>	Self Capacitance = 3.28 pF
>
        I would have expected distributed (self) capacitance to be nearly
constant, if the winding length is fixed at 10 inches.  Are you sure your
measurement method is not affecting F0?  (I learned this the hard way
recently.)  How did you measure/estimate Cdis?
Regards,
Mark S. Rzeszotarski, Ph.D.