Magnetic field of a bifilar pancake coil

[evostars]

Tesla made a patent about the bifilar coil (512340) where in he states some interesting things about the added capacitance of the coil windings, and the abillity to counteract self inductance due to it.

I have build several bifilar coils, and since I could not find a lot of good info, I have decided to share some of my findings, in a video series.

In this first video, I talk about the magnetic field, with DC current, and when it is pulsed at its resonant frequency.
[VIDEO]https://youtu.be/uhY27Zoor-Q[/VIDEO] https://youtu.be/uhY27Zoor-Q

In other videos I want to talk about the dielectric field, the voltage rise, at its resonant frequency, and the special nature of this (radiant) energy.

[evostars]

the dielectric field of a bifilar pancake coil

I made a video about the dielectric field of the bifilar coil, when it is in its resonant frequency. At resonance the dielectric field is freed of its magnetic component, and radiates around the coil. If you are sensetive to energy fields, you can clearly feel this. But it is also measurable, with a osciloscope. the probe will pickup the field in the air surounding the coil.

[VIDEO]https://youtu.be/xHDrmGPY-78[/VIDEO] https://youtu.be/xHDrmGPY-78

It shows the radiant sparks, the charging of a condensor, and the glowing of 9 LED's all connected with just one wire.

[evostars]

I've made an update to "The dielectric field of a bifilar pancake coil" video.
In this earlier video I showed the effect of grounding on a LED array.
In this addition I show the effect of grounding on two capacitors.
[VIDEO]https://youtu.be/4_q8TjEMM50[/VIDEO] https://youtu.be/4_q8TjEMM50

[telemachus]

Thanks for sharing the videos. I watched your 2nd video (the 16 minute one) - the explanation about how the bifilar coil differs from a capacitor was very interesting and useful.

[Sputins]

I've made an update to "The dielectric field of a bifilar pancake coil" video.
In this earlier video I showed the effect of grounding on a LED array.
In this addition I show the effect of grounding on two capacitors.
[VIDEO]https://youtu.be/4_q8TjEMM50[/VIDEO] https://youtu.be/4_q8TjEMM50

I’m yet to watch the more recent video above.

What method of determining or measuring the self-capacity of the bifilar coil have you devised? (Most LCR meters won’t measure capacity on a given coil directly). Given that you can measure L with a meter and determine the self-resonant frequency, one could back calculate the self-capacity.

One could take two given lengths wire of exact same length. With wire length 1, wind in standard single wire flat spiral format. The other length wire 2, divide it in two and wind it bifilar style and connect in series. Then one could chart the various characteristics of each, given they have the same total length of wire. (Compare resonant frequency, Q-factor, voltage rise, self-capacity, inductance etc., etc.

I’m certain such characteristic comparison has already been done somewhere by many people, but doing it yourself teaches it to you directly, & maybe you’ll detect other differences.

It is funny that while Tesla invented the Bifilar coil, it seems that he hasn’t really specified on where, how or for what application it is really intended for except to say as per the patent, “Coil for Electromagnets”. So that leaves it open for broad speculation.

[evostars]

I’m yet to watch the more recent video above.

What method of determining or measuring the self-capacity of the bifilar coil have you devised? (Most LCR meters won’t measure capacity on a given coil directly). Given that you can measure L with a meter and determine the self-resonant frequency, one could back calculate the self-capacity.

One could take two given lengths wire of exact same length. With wire length 1, wind in standard single wire flat spiral format. The other length wire 2, divide it in two and wind it bifilar style and connect in series. Then one could chart the various characteristics of each, given they have the same total length of wire. (Compare resonant frequency, Q-factor, voltage rise, self-capacity, inductance etc., etc.

I’m certain such characteristic comparison has already been done somewhere by many people, but doing it yourself teaches it to you directly, & maybe you’ll detect other differences.

It is funny that while Tesla invented the Bifilar coil, it seems that he hasn’t really specified on where, how or for what application it is really intended for except to say as per the patent, “Coil for Electromagnets”. So that leaves it open for broad speculation.

Indeed, Tesla did give a small clue. In his patent (512340) he states it is able to counter act self induction. To me that says it counteracts Lenz Law (I think its not a law, but a observation):

Tesla quote from his patent 512340:
In electric apparatus or systems in which alternating currents are employed the self-induction of the coils or conductors may, and, in fact, in many cases does operate disadvantageously by giving rise to false currents which often reduce what is known as the commercial efficiency of the apparatus composing the system or operate detrimentally in other respects. The effects of self-induction, above referred to, are known to be neutralized by proportioning to a proper degree the capacity of the circuit with relation to the self-induction and frequency of the currents. This has been accomplished heretofore by the use of condensers constructed and applied as separate instruments.

My present invention has for its object to avoid the employment of condensers which are expensive, cumbersome and difficult to maintain in perfect condition, and to so construct the coils themselves as to accomplish the same ultimate object.

The capacitance of the bifilar coil you ask. I just did a measurement with a LCR meter. It is not a correct reading, but valuable for tuning. I simple disconected the two windings (series) and measured the capacitance between the two disconected windings of the bifilar coil.
It was around 1,7nF with a inductance of 0,47mH.

When you calculate thes numbers, the resonant frequency is way off, I remember something like 178 kHz. While in real time it was more in the 600kHz range (dependend on the setup).

So this way of measurement is good for tuning (if you need 2 equal coils).

So to answer "What method of determining or measuring the self-capacity of the bifilar coil have you devised?":
NONE
But indeed, as you stated you could use a calculater when you know the resonant frequency, but... its more complicated, because the capacitance is influenced when you resonante the coil, via another coil...

[Allen Burgess]

Cancellation of self inductance.

@evostars,

I'm Synchro1 at the Overunity site. My chief adversaries, namely Milehigh and Tinselkoala are forbidden to post here at Energetic Forum.

I want you to know that I think very highly of your fine quality videos. Those two know-it-all Egg heads really don't understand what cancellation of "Self Inductance" means.

I can help explain this in view of Tesla's patent naming his series bifilar coil "A coil for electro-magnets".

Milehigh persistently continues to push his absurd theory that there's no difference between the series bifilar coil and the single wire coil. The bifilar's unique quality of self inductance cancellation is the central feature in the coil's worth.

I have it on information that Tesla's original bifilar coil patent was recused and critical explanations and drawings deleted. Most of what I plan to discuss here on your thread has already been explained by me on your Overunity thread; However, too much turmoil developed and I believe that much of what I set out to explain was buried by the dirty fighting. There are some really very horrible commenters over there who always cause way too much trouble. I'll start to re-explain what I can here on your Energetic Forum thread shortly.

[Wistiti]

Hi guys!

For me it is now a kind of "High light" at OU.com when I see the same people (some time new name appears) come to a topic and working hard to put some "fog" on the subject by filling it with theorise, bad word and childish game in the name of "they don't want people loose their $$ by trying to replicate or test the device" ...
When it happen it seem clear there is something to learn in these topic...

Another thing is clear for me is energetic forum (and some others) are a way best place to have some "team work" than OU.com! I think the respect is the key...

ps: evostars, nice work by the way!

[RAMSET]

I will remove this post tonight so as to not clog this thread

for a very long time I have fought with certain persons at Stefan's forum MileHigh for certain and TinselKoala too [although now I consider him a friend

I have been fortunate to make Many very good friends who are EE's and scientists as well as many very skilled fellows in these forums and others ...just good people of like mind who wish to learn [like myself]

and having worked for test labs all my life I also learned the importance
of proper investigation.

If and when a discovery or anomaly is found it must truly be a discovery and not my own ignorance of the subject matter.

in this field it is way too easy to assume something is special and waste time

I have learned to Run towards scrutiny when I feel I have made a discovery or found an anomaly
if it is a mistake or error I am grateful for that knowledge and I waste less time.

I am older and life is too short and precious to waste.

good luck with your research Allen ,when you feel it can survive scientific scrutiny ?
I suggest you run towards scrutiny too.. with empirical evidence for peer review!



respectfully
Chet K

[Allen Burgess]

I will remove this post tonight so as to not clog this thread

for a very long time I have fought with certain persons at Stefan's forum MileHigh for certain and TinselKoala too [although now I consider him a friend

I have been fortunate to make Many very good friends who are EE's and scientists
and having worked for test labs all my life I also learned the importance
of proper investigation.

If and when a discovery or anomaly is found it must truly be a discovery and not my own ignorance of the subject matter.

in this field it is way too easy to assume something is special and waste time

I have learned to Run towards scrutiny when I feel I have made a discovery or found an anomaly
if it is a mistake or error I am grateful for that knowledge and I waste less time.

I am older and life is too short and precious to waste.

good luck with your research Allen ,when you feel it can survive scientific scrutiny ?
I suggest you run towards scrutiny too.. with empirical evidence for peer review!



respectfully
Chet K

@ramset,

You can kiss my ass!

[Allen Burgess]

Bifilar Coil for Electro-Magnets

These two videos share a basic underlying principle; The bifilar and single wire nail core solenoid coils in the first video were both "Shock Pulsed" before the wire ends were attached to the battery electrodes. We can see how the solenoid coils were pulsed in the 48 Hex nut locking video that follows:

https://www.youtube.com/watch?v=9mxtwS2OsaA

https://www.youtube.com/watch?v=YeJ5wHBpaf4

We know that the serial bifilar coil can cancel self inductance, and also that the single wire is not an inductor.

[Allen Burgess]

48 Hex nut wire inductance

I just located the wire I used to lock the 48 Hex nuts and tested it for inductance while straight: The reading was .004 Negative Micro Henries. A "Negative Micro Henry" is the equivalent of a measure of magnetic field in Oersteds. This indicates the presence of the very small magnetic field generated in the wire by the battery in the inductance meter.

The wire can be assumed to have zero inductance. The series bifilar has the potential to cancel it's self inductance. I never measured the inductance of the nail core solenoid coils in the video; However other tests proved the inductance to be equal in the two types of coils of equal wire gauge and turns.

The single wire nail core coil would be forced to store a portion of the pulse power in a magnetic field between it's windings. It acts as a choke or mag amp! The series bifilar, if "Rung" into resonance, would cancel it's self inductance and project the entire pulse outside the coil and into deep penetration of the ferrite core, just like the single wire and the hex nuts. The difference would be the direction of the solenoid power toward the center and the wire to the outside.

[evostars]

Thanks for your compliments. The work continues.
"That other forum" is clearly not properly moderated. After alot of offtopc shouting and cursing, the moderator himself has joined the offtopic discussion.

Good to know, this is a place where some of those members cant post.

Lets try to keep it together here. Stick to the subject. If its related, than its interesting, if its interesting enough, make a new topic, where it can be discussed.

Be polite and thankfull, so we can share our thoughts. Nobody is right or wrong, there are many perspectives.

For me, its all about the dielectric dynamic field that is produced, at the resonant frequency of the coil. Its about the capacitance of the coil. Its about the properties of the dielectric field, of which we know so little.

This field, and the interactions of several of these fields, produce interesting effects. It all is related to resonance.

I've been playing with 3 bifilar pancake coils, stacked on top of eachother. The top and bottom coil are series connected, and the center coil is being pulsed.

I found that the north (top) coil produced a higher voltage, than the south (bottom) coil.

Than I reversed the bottom (south) coil. And gave it some distance to the center coil (5mm). For some reason the resonant frequency became a lot lower. By addiding capacitance to the top coil (parallel viriable capacitor) I tuned it down, to the same resonant frequency of the bottom coil.
(it was around 635khz, and dropped to 435khz)

In this new setup, with the reversed south coil (normally weaker), and tuned north (top) coil. the resonant rise at the south side was much bigger.
And with a 12V pulse into the center coil, I now create 945V dc into 4 series connected capacitors, 6.3uF each, around 1,58uF total. This voltage rise is within 2 seconds.

Now this result might be small, and not really overunity. But really would love to understand it.
For the phase is 180 degrees, I would expect cancelation, but its opposite.

Sorry if itsnt completly clear. I could make a video, but... for now im wondering how this all works...

[RAMSET]

permission

evostars
would you mind if I post on topic experiments here [just actual vids ?]

I will always remove posts and censor myself if you wish?

respectfully
Chet K
ps even this request will be removed..

[evostars]

copy from my post (#81):

I made some pictures about the fields of the bifilar coil.
Shown in red and blue are 10 windings. You see only half of a bifilar pancake coil. The other half is mirrored on the right (use youre imagination).
I provide 100 volts, the red is one winding into the center, the blue is the second winding into the center, connected by the grey wire.

The voltage difference is 50 and 40. this 10V difference, is because i only use 10 windings in this example. If if would have 1000 windings, the difference would be 0,1 volt. (0,1%), so 49,9V and 50V.

A single wire, with current, radiates the dielectric field outwards, and the magnetic field circles around it. I also included a picture from Steinmetz, that shows the magnetic and dielectric field lines of two conducting wires. (figure yourself out if the current flows in the same direction or not).

The magnetic field flows over the windings of the pancake coil. above, and below are different directions, inward to the center hole, and outward to the outer rim. (the other side is mirrored).

If we would look from above, we would see a whirlpool/vortex of the magnetic field. One side is centrifugal, the other side is centripetal.
meaning, flowing towards the center from the outer rim, or flowing from the center outwards.

The direction of the vortex is determined by the current flow (right hand rule).

With AC, we have alternating current, meaning the direction of the vortex reverses. At the same time the voltage differnce between the windings remains the same. The dielectric field seeks the smallest place, which is the center of the coil. there it creates pressure. This pressure pushes out the field lines, creating the magnetic field. it can only go up or down. the direction is determined by the direction of the current flow, making the magnetic vortex.

therefor one side is strong in pushing, generating pressure (north) while the other is pulling, sucking in the field lines. (south)

Al fields are ether fields. the magnetic field is a ether field, the dielectric field is a ether field. It is the configuration of the field lines, that determines its actions. when a ether whirlpool/vortex is created, we have a magnetic field(turning left or right is north or south). If the field has radial coherent lines, we have a dielectric field. (gravity is another topic, but guess what...)

With AC the dielectric field, is building up between the wires, in the smallest place. The magnetic field vortexes have to travel all the way around the coil. A much bigger distance than the space between the windings. This takes time. It takes time for the magnetic field to build up, and then when the current alters (AC) the magnetic field vortex flow, is reversed! This reversing field has inertia. At the same time the dielectric field between the spiral windings, has no difficulty in sitting there. It is not related to the alternating current. It is related to the voltage.

At a certain frequency, the magnetic field with its inertia, cant collapse anymore. It becomes static. The pulses it receives from the coil, are perfectly aligned with the building up and collapsing of the magnetic field. the field. The field gets a pulse, just when it was about to collapse. so it stays there. it becomes a stable vortex. A vortex of ether flow. sucking in, and pushing out.

the dielectric field rises in voltage. it starts radiating outwards, it becomes free of the magnetic vortex restricktions. the dielectric field expands outside of the windings, outside of the coil. this is why a neon tub lights up, its because of the dielectric field at its resonant frequency.