The inductive reactance X(L) can be found by measuring the impedance Z and applying the equation Z= Sq Rt [ X(L)^2 + R^2]. The impedance Z is simply the AC resistance which for a typical tesla secondary would require a low input AC voltage (such as a variac) to measure that AC current and then applying V=IZ, where Z is simply the AC analogy of V=IR in DC circuits. The actual inductance L of the secondary could then be deduced from the equation X(L)= 2 pi* f *L where solving for L yields L =X(L)/2pi*f.
On Thursday, February 7, 2019, 10:05:46 AM EST, jimlux <jimlux@xxxxxxxxxxxxx> wrote:
On 2/6/19 8:05 PM, Anthony Dresden wrote:
> First off, this is amazing thank you so much for providing this site.
> I am having some difficulty with resonance formula. I can solve for
> Xc(because frequency,and capacity are given numbers) but how do I get
> inductive reactance figures,
Xl = 2*pi*f*L
There are many formulas for calculating L using number of turns and the
dimensions of the coil.
Wheeler's equation is widely used as a pretty good approximation.
http://home.earthlink.net/~jimlux/hv/wheeler.htm
the two forms that turn up in tesla coils are the single layer solenoid
(for the secondary) and the flat single layer pancake (for the primary)
I don't know that the secondary links on my Wheeler page still work.
What most folks do is use a program like JavaTC (google for it, there's
online and downloadable versions) to run the calculations.
I have tried formulas that involve the number
> of coils, gauge of wire, resistance, frequency,ect. Could you please she'd
> some light on the subject. As I don't have the instraments to collect this
> data.
> Thank you much.
> Marcus Anthony.
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxxxxxx
> https://www.pupman.com/mailman/listinfo/tesla
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxxxxxx
https://www.pupman.com/mailman/listinfo/tesla
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxxxxxx
https://www.pupman.com/mailman/listinfo/tesla