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Author Topic: Tesla's "COIL FOR ELECTRO-MAGNETS".  (Read 310412 times)

Offline Farmhand

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Tesla's "COIL FOR ELECTRO-MAGNETS".
« on: April 21, 2013, 03:00:24 PM »
Hi all, This coil arrangement is an interesting one for many of us so this thread is for discussion of the coil and it's uses/effects.
This includes all types of coils as stated by Tesla in the patent. Careful reading of the patent is encouraged.  :D

Patent 512340 "COIL FOR ELECTRO_MAGNETS"
http://www.google.com/patents?id=baRZAAAAEBAJ&printsec=abstract&zoom=4#v=onepage&q&f=false

Lines 33 to 38 of Page one of the patent.
Quote
I would here state that by the term coils I desire to include generally helices solenoids or in fact any conductor the different parts of which by the requirements of its application or use are brought into such relations with each other as to materially increase the self induction.


There is a lot of discussion in a thread here --  http://www.overunity.com/11350/confirming-the-delayed-lenz-effect/975/#.UXPhyrXPVqA
Starting at about page 67.

I wanted to bring the discussion to a more appropriate place.

I've done some testing and will elaborate in my next post.

Regards all.

Free Energy | searching for free energy and discussing free energy


Offline Farmhand

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #1 on: April 21, 2013, 03:31:08 PM »
Ok so I wound two coils, both with the same length of wire, (measured and cut side by side).  Wire is 0.5 mm enameled wire,
wire length is about 4.35 meters in each coil. The coils are each wound on individual iron powder cylinders 38 mm long x 10 mm diameter.
The core is insulated by home made bee's wax paper and each layer is insulated by a sheet of bee's wax paper as well, there are about 2.5 layers.

Here are the specs.

Single winding coil (control coil)

Turns - 140 (approx.)
Resistance - 0.2 Ohms
Inductance - 401 uH
Capacitance - 43.4 pF (determined)
Resonant Frequency - 1210 kHz (By experiment, square wave excitation)

---...---

Serial connected bifilar coil. "COIL FOR ELECTRO-MAGNETS"

Turns - 140 (approx.)
Resistance - 0.2 Ohms
Inductance - 406 uH
Capacitance - 117 pF (determined)
Resonant Frequency - 735 kHz (By experiment, square wave excitation)

Capacitance between open windings - 410 pF (measured)

Attached is some pictures and scope shots. Last is the coils and how they are connected for testing,
there is a 10 K resistor is series with the function generator.

The shots show the single winding control coil, first at resonance, then at a harmonic,
then the last two shots are the serial connected bifilar coil.

EDIT: I think the last scope shot is the wrong one, I'll see if I can find the correct shot,
the scope can be tricked into reading the incorrect frequency by the harmonics.  :-[

Correct shot found and added.

Cheers










Offline MileHigh

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #2 on: April 21, 2013, 04:15:10 PM »
Farmhand:

I think I saw you make reference to the harmonics present in a square wave and how they might possibly be picked up by a ball magnet rotor to make it spin very fast.

The same idea applies to when you are sweeping frequencies with your signal generator to find the resonant frequency of your coil.  You must use a "pure tone" without any harmonics present - a sine wave.

MileHigh

Offline Farmhand

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #3 on: April 21, 2013, 04:27:18 PM »
Farmhand:

I think I saw you make reference to the harmonics present in a square wave and how they might possibly be picked up by a ball magnet rotor to make it spin very fast.

The same idea applies to when you are sweeping frequencies with your signal generator to find the resonant frequency of your coil.  You must use a "pure tone" without any harmonics present - a sine wave.

MileHigh

Yes I am aware of that. Thanks. One shot is the resonant frequency for that coil and one shot is one of the harmonics of the coil.
I did that for each coil. First two shots are for the single wound coil and the second two shots are for the bifilar coil.

The function generator doesn't lie. It tells me the frequency in numbers when I see resonance. Meaning when all the harmonics disappear.
That's why I use the square wave to excite the coils. Full resonance is very obvious. I do know how to find the resonant frequency of a coil
with a function generator and a scope.

The coils have very different resonant frequencies.

..

Online synchro1

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #4 on: April 21, 2013, 04:31:24 PM »
My double strength "SB Spiral" monopole:
 
Quote from Farmhand:
 
                                          "The coils have very different resonant frequencies"
 
Farmhand's SBC resonant frequency is in tune with the oscillating frequency of magnatisem. 7.83 Hz for Schumann resonance is nearly a thousand times less then the 735 khz, but on a close harmonic. The SBC resonant frequency is in L-C synch with Earth's pole resonance, along with the neo sphere's inherent magnetic oscillation frequency.


 

Free Energy | searching for free energy and discussing free energy

Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #4 on: April 21, 2013, 04:31:24 PM »
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Offline Farmhand

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #5 on: April 21, 2013, 04:49:30 PM »
Regarding the increased capacity of the coil for storing energy, would the bifilar coil release all of that
extra energy it takes in and stores if it was used as a series inductor ? As in a charging inductor for a
resonant charging circuit for a Tesla coil pre-primary ect.. It could be useful for that purpose maybe.
The one I made above just happens to be the same frequency as some of my Tesla coils.

As far as for any application, the lowering of the resonant frequency could be very useful.

I remember Slider from EF found some bifilar type/wound coils in an old TV or something, he
talked about it in the Romero Muller thread at EF.

It would seem the self capacitance was increased by almost a factor of 3 in the coils I wound above.

..

Online synchro1

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #6 on: April 21, 2013, 04:59:16 PM »
This underscores my "Magnetic Resonance Theory".
 
Quote from Farmhand:
 
"The one I made above just happens to be the same frequency as some of my Tesla coils".

Free Energy | searching for free energy and discussing free energy

Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #6 on: April 21, 2013, 04:59:16 PM »
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Offline Farmhand

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #7 on: April 21, 2013, 05:14:55 PM »
My function generator is a bodgy unit, the frequency drifts badly for some reason. I've built oscillators and pulsing circuits
that hold a nice steady frequency, I don't get why the bought FG frequency drifts, No one should buy one like the one I
have it isn't very good in that way.

That's why I can't get the frequency to stay spot on where it should be so I apologize for that.  :-[
I see there are cheap digital ones on ebay but the output of those is less.

Cheers

Online synchro1

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #8 on: April 21, 2013, 05:37:52 PM »
Heartbeat frequency:

Offline jbignes5

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #9 on: April 21, 2013, 05:59:11 PM »
 I am so very glad you have started this Farmhand. I applaud your exploration of the coil that will change our lives.


 The problem with bifilar coils is they are designed for pulsed operation. They do not respond well to analogue stimulation. At least not equalled response.  The impulse method is where Bifilar coils excel. With a suitable capacitor one can make the bifilar output way more magnetic response then any other coil in existence if a core is included. In no core operation they only emit the electric field because the bifilar coil accelerates the charges from one end to the other. This is done by passing opposite charges from opposite ends. As they approach each other they are accelerated out the other end via the induction of the opposite wind. This acceleration raises the voltage present at the charge.
 Using traditional measurements and measuring instruments will not yield anything of value in my opinion. This is mainly due to the devices created for measurement were not designed properly for pure electric measurement.


 Tesla was known to say that he didn't use the magnetic component in his systems designed after the AC system. The gain came from suppression of the magnetic field and only allowing an electric field integration. Since the electric field was mainly static as Tesla pointed out he had to find a way to modulate the electric field to cause a vehicle to generate from in the receiver. This was accomplished by the longitudinal modulation he employed and that naturally came from the use of impulses. Tesla quickly discovered that the speed of the electric field going from zero to maximum was faster then light. This is why he has said that light speed is not the fastest in the Universe. Since light is modifiable via magnetic fields it is not a huge jump to conclude that light is slow when compared to the electric field or transport medium of that light. In my opinion light is the result or wake of longitudinal rays-traveling radiative away from from a highly charged body in space.


 Someone posted a great PDF of a NASA proposal to research this area of Tesla and others. It's in this forums download area and a link is provided in this thread: http://www.overunity.com/13149/nasa-report-on-teslas-zero-point-energy-page-41/msg357919/#new

 learning as much as you can about Tesla/Dollard/Meyel and others will bring you up to speed about how to utilize the bifilar coil to it's full extent.

 My original experiment is now being fully experimented on by me. Any information I can get out of the experiment I will share with everyone fully. Since the field coils in my motor generator will be Bifilar in design to handle the impulses to the field coils. There must be very little resistance of the wire in the bifilar coil because this will only slow down the impulses and the subsequent radiative field of such a coil. paralleling the coils will greatly enhance the impulse acceleration and hence the gain in voltage of the electric field. Also from the link I provided earlier in this thread you can see that any matter that is considered as conductive when exposed to this impulse field will generate huge currents in the conductor if the impulses are resonant with the mass of the conductor.

 Well I'll let you get back to the road of rediscovery that you are on. Enjoy.

Free Energy | searching for free energy and discussing free energy

Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #9 on: April 21, 2013, 05:59:11 PM »
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Offline MileHigh

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #10 on: April 21, 2013, 06:00:53 PM »
Farmhand:

Perhaps try running the function generator with the top off and see what happens.  If it runs stable then there is a good you have a thermal problem with a component.  On the bench people use heat guns in combination with freeze spray to locate faulty components.

Itsu has some really nice clips where he checks for resonant frequencies with his scope.

Quote
Regarding the increased capacity of the coil for storing energy, would the bifilar coil release all of that
extra energy it takes in and stores if it was used as a series inductor ? As in a charging inductor for a
resonant charging circuit for a Tesla coil pre-primary ect.. It could be useful for that purpose maybe.
The one I made above just happens to be the same frequency as some of my Tesla coils.

It's hard to discuss things like this without a circuit to work with.  From what you say I imagine a resonating SB coil in a standard Tesla coil setup with the long cylindrical secondary coil.  I suppose that the Tesla secondary coil would amplify the voltage.  Since we are talking high frequencies all this would have to be checked.  It's possible that the Tesla secondary coil at 1 MHz won't respond because the frequency is too high.  To be more precise, it will respond but possibly at a greatly reduced amplitude because ultimately it will act like a low-pass filter.

If I can offer a suggestion, it looks to me like you have a modern DSO that can record waveforms.  We know that a self-resonating coil's oscillations will decay like any RLC resonator.  Perhaps with the help of your DSO try to measure how long the ringing lasts and over how many cycles.  It will give you a sense of how much time you can work with the resonating coil.

Synchro1:

I have read the speculations for years about bench experiments interacting with the Shumann resonance.  Those comments are wild speculations and in fact are not true.  You can safely ignore the Shumann resonance.

MileHigh



Online synchro1

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #11 on: April 21, 2013, 06:11:01 PM »
Shumann resonance is merely one aspect of the "Oscillating frequency of magnetisem" as measured along any Bloch wall and determined to be a constant.

Offline MileHigh

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #12 on: April 21, 2013, 06:32:00 PM »
Synchro1:

Well I don't understand what you said and I am wondering what kind of example you can illustrate for the Bloch wall.

The Shumann resonance is associated with the Shumann cavity that surrounds the Earth.  It's like a huge microwave cavity that certain wavelengths of EM radiation will bounce off of.  It's like the Earth is a ball inside another larger ball where the inside of the larger ball is like a giant mirror.  So waves reflect off of the inside of the larger ball and bounce around.  It's the size of the ball hat determines the resonance frequency.  The ball size and shape change over time because of changes in the space weather.  One source of energy to set up the waves inside the reflective ball is lightning strikes.  A small portion of the energy in the EM wave pulse from a lighting bolt will be in the right wavelength range to reflect off of the Shumann cavity.  So the energy bounces around and just like in an RLC resonator, it eventually dies away in perhaps a few seconds (I would have to check to be sure.)

So you are working on your bench, and then thousands of miles up in space is the giant curved reflective surface of the lossy Schumann cavity.  Somewhere in the mix are the Van Allen radiation belts.

Don't worry be happy!  lol

MileHigh

Online synchro1

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #13 on: April 21, 2013, 07:02:20 PM »
The SBC resonant frequency Farmhand measured in his SBC electromagnet  is the same as his other Tesla coils, determined by the constant L C frequency in all the SBC coils. This is the same harmonic as the frequency between the Earth's magnetic poles and also the poles of a permanent magnet, in proportion to strength. The SBC's all share the same capacity to inductace ratio. The pure sine wave resonance is in tune with a broader spectrum of harmonics, including the one inside the neo sphere, depending on strength, and the Van Allen belts. 
 
Matching a proper size and strength sphere magnet spinner to an SBC for resonance is important

Offline MileHigh

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Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #14 on: April 21, 2013, 07:07:49 PM »
Farmhand:

I assume that your first tests will be with the coils acting like electromagnets.  If you want to go beyond that, some basic ideas for your consideration for analyzing your coils.  I am not going to get into too many details.  On thing is if you know the core material you can look up its magnetic properties.  But the fun is then to try to measure the permeability of the core yourself.  Another question is what is the saturation current for the core.  With your signal generator on square wave and a simple circuit you can measure the inductance of the two coils with your scope.  That can be compared with what your inductance meter says.  I am trying to think of another way to measure the differences in the self-capacitance between the two coils.  If you make them self-resonate and then set up the initial conditions and then measure the voltage across the coil that's one way.  Another way would be to look at the slew rate of the coil voltage increase when you switch of the driving transistor under very controlled conditions.  You could also double-check your measured resonant frequency by pinging the coils and letting them ring naturally and recording it.

You know how in a car you have your "idiot lights."  It's arguable that capacitance meters and inductance meters are somewhat akin to idiot lights.  So you can make these types of measurements with a scope.  On the other hand, it's not easy to do some of the stuff mentioned above if the experimenter is a beginner.  However, with enough hunting around on the web you could probably find the experiments in question.  I am really talking basic lab work, like "how to measure the inductance of an inductor."  I don't know if you want to go there but I thought I would mention it.

MileHigh 

Free Energy | searching for free energy and discussing free energy

Re: Tesla's "COIL FOR ELECTRO-MAGNETS".
« Reply #14 on: April 21, 2013, 07:07:49 PM »

 

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