caduceus coil building and testing

[stivep]

Interesting is that amount of people ready to experiment is very low here:
I was looking at my post
Re: caduceus coil building and testing « Reply #15 on: February 06, 2023, 04:35:53 PM »
where I specifically say :

Please look at my precious post  before  reading this one.  Re: caduceus coil building and testing  « Reply #14 on: Today at 03:34:57 PM »

and  I see that only 20 people  viewed it.So the question is :
Who I'm dedicating my third day of  documenting  Lithuania Experiment to?
thinking about :
-cost of travel,
- fight  with custom in Lithuania  still under Russian  influence in  2011 when they saw weird to them looking content of the suitcase .
- time spend there  in that post soviet environment for an American from USA right after I returned from Tbilisi Georgia when
  I was poisoned  by some Russians along with Tariel Kapanadze.

The two trips together cost me several thousands  dollars than with paying the member of assassin crew to find more about these Russians.
The doubled  flight tickets because  some of that airport personnel in Prague was bribed by them.
Anyone of  you would go to such trip knowing that  he may not return  in vertical position from it?

You expecting   knowledge and experience and real results from both the  Tariel Kapanadze
Tbilisi Georgia Europe  trip and from Kaunas  Lithuania trip.
and at best for free and delivered in front of your  nose  and at best today.
for what?
for some of some of your laziness?
Is this what  Energy for Free  community is about?

___________________________________________________
the same story was  with my two sections
https://overunity.com/18335/wireless-energy-transfer-experiments-builders-board/msg557086/#msg557086
here you'll find step by step instruction too just in different page.
https://overunity.com/18335/wireless-energy-transfer-experiments-builders-board/msg560164/#msg560164
the second section  is entirely in Russian  language
https://overunity.com/18913/in-russian-ekspierimienty-po-biesprovodnoi-pieriedachie-enierghii-doska-stroitieliei/msg559589/#msg559589

Well actually  third one in addition to these two.
https://overunity.com/17735/wesleys-kapanadze-and-other-fe-discussion-forum/msg569853/#msg569853


Lets assume some things:
You  guys definitely  have value as a people and value  as a professionals in your field.
You may be valuable  members of  society.
But I'm not good in cooking and some of you may  not be good too.
You are here not to fulfill your laziness, it is particular forum  having particular direction 
and expectation of contributors is that  they will be  heard and analyzed, often scrutinized .. ..
-perfectly OK with me.

________________________________________________

The  benefit of contributor is his/her/its personal satisfaction from  his activity and contribution as it is voluntary and charge free.
We need also to understand personality of contributor as we don't want to spend money for some  e.g Russian Troll contributing Trash
as they do everyday  - https://en.wikipedia.org/wiki/Internet_Research_Agency

If you know that you  dealing with  a given theoretical contributor 
everything is simple:
- no overunity exist   or is possible. energy can only be converted  from one form to the other.
- superstition is a BS.and has no basis.- no bad luck or good luck exist  as everything is random and winning lotto  is  random event too.
- Telepathy is   nonsense
- no anti-gravity  is possible
- no travel back in time exist or is possible
- no ether eather exist
- no alchemy of turning one metal to  other is possible due to atomic structure of strong  force
- No God, Angels,  Miracles, ghosts, Satan, exist, no Creation was ever  done..
- we all are animals according to Darwin.
- physics and other  sciences   are  based on models,  and that is why
  we made in last 200 years  progress more than we made  in over million of years of our evolution as Homo animals.
- We dominated the world  and soon  we  may overpopulate the planet destroying natural habitat of other animals.
- Contribution  to this forum is voluntary and is feared by  its impact on humanity  and overpopulation speed if given in working form  for free to it.
- emotion is what makes me write and act and by that  just  to fulfill my  emotional needs in given time
I may do it!!!! despite of consequences.
  But I rather prefer  someone else  to  act this way as there is no  the "gifted one" who  is thinking and can deliver.
  The only difference  is that  People  wants to make money on their  inventions  especially in this field , and that trap rather makes them dead, or paid for silence, or
  pushed to silence  or  wealthy while  likely working for some military. 

_{opinion expressed is my own}
Wesley

[r2fpl]

Darwin's evolution stopped after his death 

[stivep]

Darwin's evolution stopped after his death 

In essence, sarcasm is easy (as is most anger, criticism, and meanness) while true, harmless wit takes talent.
A question I think you will not answer, not because you are Russian but because you  have no gods to  answer is:
Why?
Why Darwin's evolution stopped after his death?
Wesley

[Collapsingfield]

Dear Wesley, I have practical problem at testing. On the yoke all of the coils are in the uH range (below 100uH). By normal signalgenerator and in general, the 50Hz range as input is very strange because of the very low impedance there.
Could you give us some advice based on your experience?
Regards
Collapsingfield

[stivep]

input is very strange because of the very low impedance there.
Collapsingfield

I  have problem  in  understanding- your problem with  application of your yoke.

I understand that :
- you have single coil winded on the yoke - means having two  wire ends and it  has small inductance.
  the permeability of the  ferrite  used  in this yoke is not known
  https://en.wikipedia.org/wiki/Permeability_(electromagnetism)
_________________________________________________________________
So I respond with some basic knowledge.


Difference between Inductive Reactance and Inductance.
An inductor: is a static two-terminal electrical component that stores energy in a magnetic field when electric current flows through it.
e.g: coil, chokes, or reactor.
it is physical component you can hold in your hand.
/difference-between-inductive-reactance-and-inductance/
Inductive Reactance (X_L) : is the opposition offered by the inductor in an AC circuit to the flow of ac current.
it is a process that exist in the inductor that depends from: e.g  frequency
https://byjus.com/jee/inductive-reactance-and-capacitive-reactance/

Now we adding ferrite to the inductor:

While using ferrite cores in inductors, we consider the following things-
High saturation
High impedance
Fewer losses
Stability in temperature
Properties of the material

ferrite-core-inductor-losses-characteristics-and-applications

some time ago in the past we used  silicone alloy metal plates like here for low frequencies
also called the Ferromagnetic metal core for high energy efficient transformer. Ferrite transformer for switching power supply.
selective focus, shallow depth of field. https://www.wellpcb.com/ferrite-core-transformer.html
So you don't have to use  the sintered ferrite cores https://en.wikipedia.org/wiki/Ferrite_(magnet)
You can use plates.
_{Note:some discussion is here although  not  very scientific:
ferrite-or-iron-powder-how-do-i-tell-what-an-unknown-core-is-made-ofand is based on 13 years old data.}

So in regards  to frequency:
Inductors are just a coil of wire - in a DC circuit they do nothing. _{well in most  situations as sometime we deal with AC having offset  DC and so on.}
In an AC circuit the inductor acts like a resistor, the resistance changes with the frequency.
That resistance is now reactive and is called inductive reactance that adds into pure resistivity of the wire.
Capacitors are the opposite. In a DC circuit they block current. In an AC circuit the "resistance"( capacitive reactance) decreases with frequency.
When we add ferrite core  to the inductor than The use of the magnetic material ferrite core allows for more frequencies with minimal eddy current losses.
but  particular type of ferrite  material can only handle limited frequencies

In regards to yoke :
By adding air gaps to these ferrite shapes, the cores can be used efficiently while avoiding saturation.
so in my  previous  comment  I  presented the two halves of ferrite Yoke with  air gap regulated by piece of paper.

Most of that ferrite Yoke  assembly is used  in form of transformer and should be seen this way.
Because reactance is  measured in Ohms it adds to real resistance of wire  even if it is  reactive "resistance"
That is why if you have AC relay and connect it to DC you may damage the winding or blow the circuit  breaker as in DC  you have no  reactance  whatsoever
and you dealing with pure  resistance of the wire .

self-inductance
is associated with the magnetic field produced by a current, any configuration of conductors
possesses self-inductance. For example, besides the wire loop, a long, straight wire has self-inductance, as does a coaxial cable. 
So imagine  straight piece of wire  50cm long horizontally placed on the table or vertically suspended
That piece  of wire not connected to anything yet  is a perfect 1/4 wave antenna .
A ham radio operator at 144MHz=2m band  transmitting  signal can see that in Near Field  this wire is resonating
and having voltage on it.
Depends from  how much power you transmitting and how close to the real antenna of the Transmitter at 2m band is that piece of wire
_{(- it means how good coupling this  coincidental  form of that particular transformer type has)}
you may be surprised that  suddenly  you have 2kW of power on that piece of wire  
_{( if your transmitter gives  more than that)}
______________________________________________________________________________

input is very strange because of the very low impedance there.
Collapsingfield

Why do we use Ferrite Core Inductor? 

Using Ferrite cores in inductors helps to improve the performance of the inductors by
providing high permeability to the coil.
It leads to an increase in their magnetic field and inductance. Usually, the permeability level in the ferrite core inductors ranges
between 1400 to 15,000, depending on the type of ferrite material used.
Thus, ferrite core inductors boast of high inductance  as compared to other inductors with air cores.
https://www.cosmoferrites.com/news-events/ferrite-core-inductor-losses-characteristics-and-applications

The effects of capacitance and inductance are generally most significant at high frequencies.
Usually input impedances should be
high, at least ten times the output impedance
of the circuit (or component) supplying a signal to the input.

https://electronicsclub.info/impedance.htm
I hope it helps.
Wesley