RESONANCE EFFECTS FOR EVERYONE TO SHARE

[giantkiller]

Resonance is just a means to an end as far as Mr. Tesla was concerned.  Of course we can get a kid swinging alot faster on a swing with proper input of kinetic energy.  But the Gain of the system is in the heigth of the child over the ground.  The resonant circuit is just a means to pump up the voltage until this voltage becomes relavent to the rest of the whole damn electrical distribution of the Universe.  The secondary or coil of high selfinductance will cause a standing wave.
This is a wave that goes just so far and then returns upon itself in phase.  The amplitude of the wave or intensity is increased with each input pulse.  Energy now being stored in the resounding system.  What is not so apparent is that the crests and troughs of the wave are becoming relavent not only to each other but to the rest of the electrical field about the standing wave.  THERE WILL BE A FLOW OF ENERGY INTO THE SYSTEM IN EXCESS OF THAT NEEDED TO MAINTAIN THE STANDING WAVE due to it's relativity to the electrical polarization of the field about the standing wave.  If the node and antinode of the standing wave fall upon large conducting fields we draw on their relative voltage and our system starts to appear as a short circuit for these large capacitor plates.

Words that are more valuable than anything else in the Universe.

--giantkiller

[duff]

@duff

Really good work. Since we know all coils also have some capacitance, I would have really liked to know the capacitance of each set-up especially the bottom left which is the bifilar arrangement.

@wattsup

If the external capacitance generally is large, any increase in inductor distributed capacitance will have very little effect on the system.

However, I think I know why your asking about the distributed capacitance and it not related the the above statement...

The total distributed capacitance cannot be measured directly.

The standard method is to measure the Self-Resonant Frequency (SRF) of a transformer (or inductor) and calculate the total distributed capacitance.
(see the equation below)

The generally accepted method of measuring the SRF is to find the maximum impedance point of the device. The impedance of a parallel resonant circuit reaches a maximum at the resonant frequency. By measuring the "line" current using the voltage across a series element the maximum impedance point can be determined. See the schematic below.

The definition of SRF is the frequency at which the distributed capacitance resonances with the self inductance and the reactive components cancel. The maximum impedance point and the SRF can be quite different.

There can be many error that can creep in when trying to measure distributed capacitance. I may have a go at it on the little flat spiral I wound but this is something you probably need to do using your own spiral.

[duff]

@  Duff:
   In message 364 you did the calculations on the circuit. By what you have
done, is there a way you can derive the freq on the LC side as well. I guess
this would fall into the formula for Fr.

Yes - Fr = 1/(2pi sqrt(LC) )

   The reason for this is in a sim I watched, the LC side of the circuit was
moving much faster than the input frequency was. The input was calculated
to be the resonant one for the cap/coil pair. Can you see where I am going
with this?

Sorry - I'm not following...

For high Q, you want a low value of L and a higher value of C.

Q is a figure of quality, in terms of reactance compared with resistance. The Q of a coil is XL/rs, where rs is the resistance in series with the XL.

From Patent: 685,012 - Means For Increasing The Intensity Of Electrical Oscillations

Very often, however, the conditions may be such that the gain sought is not realized directly by diminishing the resistance of the circuit. In such cases the skilled expert who applies the invention will turn to advantage the reduction of resistance by using a correspondingly longer conductor, thus securing a much greater self-induction, and under all circumstances he will determine the dimensions of the circuit, so as to get the greatest value of the ratio of its inductance to its resistance, which determines the intensity of the free oscillations.

[amigo]

@Grumpy,

Thanks for those answers, that's what I'm talking about, it provides much food for thought! Sadly not many people engage because the concepts appear to be beyond them at the moment. That's why everyone needs to get educated on the theory first and foremost, with a solid understanding of principles and concepts.

@gotoluc

...which brings me up to what you wrote earlier about wanting to see a working circuit/product. IMHO we should not be spending so much time experimenting and trying to stumble upon something that works, a discovery by accident.

There should be a logical and sensible path by which we all *understand* why are things the way they are, and then applying that understanding we could create working circuits with little or no experimental effort. The experimentation has already been done for us in the past 200 years. The theory has already been laid out as well.

We need to start (re)learning (and unlearning of the dogma of later part of 20th century) and understanding what those giants of science in the past really meant and did...

[gotoluc]

Hi everyone,

I just uploaded a new video and would like everyone who can check to see if my way of calculating the power is correct.

Please post your comments

Link to video: http://www.youtube.com/watch?v=-P8zch1De-Q

Thanks for your time.

Luc