Wesley's Kapanadze and other FE discussion forum

[lukaszkwiatkowskii]

Czy gdzieś napisałem post dotyczący zastosowania tego rdzenia w urządzeniu NMR, czy gdzieś było takie zastosowanie na tym forum, skoro napisałem lepszy to znaczy lepsze parametry dotyczące rdzenia, a jakie to są parametry to każdy elektronik projektujący cewki i transformatory na rdzeniach ferrytowych powinien wiedzieć, a jeśli chcesz szczegółowo wiedzieć to polecam poszukać literatury na temat "Jaki ma wpływ gradacja proszku ferrytowego na parametry rdzenia ferrytowego" lub po prostu zmierzyć parametry rdzeni z rubina i tv sony i porównać.

[verpies]

Have I written a post somewhere regarding the application of this core in an NMR device,

No and this is what I object to because by this omission, you presuppose an application of this core in a regular choke or a transformer.

...has there been such application on this forum,

Yes and by the very originator of this thread and it did not behave like a classical transformer at all ...and was successful with the old Rubin core and a failure with more modern cores.

...since I wrote better that means better core parameters and every EE, who designs chokes and transformers on ferrite cores, 

This is the presupposition of limited application that I was referring to.  "Better" for a classical application is not necessarily better for another one.

...should know what these parameters are and if you want to know the details, I recommend searching the literature on the subject "What is the influence of the ferrite powder granularity on the parameters of the ferrite core"

I think I enumerated the major classical parameters of cores in my previous post.

BTW: Did you mean "granularitiy" or "gradient of granularity" or "gradient of permeability" such as is encountered in distributed "air gaps" of some flyback transformers.  This question of mine is the result of my lack of certainty about the meaning of the word "gradacja", which you have used.

...or simply measure the parameters of the cores from Rubin and Sony TV set and compare them.

How do you propose to set up such measurement ?  There are more measurements that can be made than the classical integrating BH measurement at one low frequency.

For example like the one illustrated in the attachment below:

[lukaszkwiatkowskii]

Gradacja proszku (nie wiem jak dokładnie po angielsku, dosłownie to powder gradation)- średnia wielkość ziaren proszku całości.
Ziarnistość (granularity)- wielkość ziaren na jednostkę powierzchni.
Myślałem bardziej o zastosowaniu takim jak w urządzeniu Akuli, co do pomiarów to porównanie histerezy i krzywych strat między rdzeniami cewek odchylania z tv rubin a sony.

Co do wykresów mimo tego że sondę zrobiłeś bardziej o statycznej pojemności to wzbudzenie rdzenia występuje przy dynamicznej reaktancji indukcyjnej.

[verpies]

...direct translation is powder gradation - the average size of the grains in its entirety.

"the average size of the grains" is understandable to me.
Please avoid using the word "gradation" in this context, because in English this word does not have the same meaning as in your language. In English it means "stopniowanie", which when combined with "powder" yields a monstrosity like: "stopniowanie proszku".

Granularity - the size of grains per unit of area.

That makes no physical sense.
Did you mean to write: "Granularity - the amount of grains in one layer per unit of area" ?

I was rather thinking about an application in a device like the Akula's

Does this device behave like a classical transformer ?

as far as the measurement go, it is the comparison of the BH hysteresis curves and hysteresis losses between Rubin and Sony TV yokes.

This has already been done on another forum and has a high yawn factor in application to unconventional devices.

[verpies]

Regarding the graphs, despite that you made the probe capacitive, the excitation of the core occurs with the dynamic inductive reactance.

I do not know why you added the word "dynamic" to "inductive reactance" as the latter does not occur at all in non-dynamic situations, like with direct current.
Anyway, further experiments illustrate that the capacitive characteristics of this core also depend on the circumferential magnetization of this material performed by a toroidal winding placed far away on the other half of this core (generating 225 Ampturns of MMF).
The frequencies of some peaks become shifted up and their amplitude increases in the magnetized state.

From these experiments it is evident that the core's material can be polarized either by magnetic flux or by electric flux and that there is a definite interaction between them in the core.

IMO such measurements have a lower yawn factor than the BH curve measurements of conventional transformers and are more applicable to an unconventional device like the one depicted in this video

P.S.
I could post S21 graphs which illustrate this shift but I will not because this forum's software is annoying as it gives me no control over the size of displayed images and insists on displaying their full width, which stretches the entire page and makes this thread unreadable on small, low resolution monitors.   Other SMF forums do not have this problem.
I expect that soon someone will start bitching about it and advise me to resize my images, which I will not do in order not to lose details contained within them and then an all too familiar discussion will ensue about whether it is the job of the forum's software to resize and display thumbnails of posted images ...or the poster's.  Are you reading this Stefan ?!

[lukaszkwiatkowskii]

Ja osobiście mam bardzo duży współczynnik ziewania  , w urządzeniu Akuli ten rdzeń jest użyty do zwykłej przetwornicy typu flyback, fakt indukcyjność statyczna nie występuje (taki odruch starego nazewnictwa).

[verpies]

...in the Akula's device the core is being used as in a regular flyback converter...

Does this device exhibit any unconventional behavior ?
If it is a regular flyback converter then conventional engineering principles apply.

[lukaszkwiatkowskii]

Mówię o tej części urządzenia gdzie został użyty ten rdzeń a nie o całym urządzeniu.

[verpies]

This has been mentioned before ( as an issue) perhaps we can ask again ? As Forum is getting some work done...

This is quite simple. 
Ask Peter for the name and version of the SMF plugin that is responsible for resizing images and displaying the magnifyable thumbnails on his forum and relay this information to the person that is working on improving this forum's software.

[verpies]

I am talking about that part of the device which utilizes this core and not about the entire device.

Please circle the parts of the schematic which act conventionally vs. unconventionally in this device.

[lukaszkwiatkowskii]

Wystarczy poszukać na schemacie transformatora który używa tego rdzenia, to chyba nie jest trudne.

[verpies]

It's enough to look for the transformer, which uses this core on the schematic, it doesn't seem difficult.

It is difficult. Firstly, I do not know what schematic you are referring to. AFAIR Akula has made several devices and schematics.
Also, I would like you to circle the conventional subcircuit, which this transformer is a part of - not the transformer alone.

[lukaszkwiatkowskii]

Ten schemat: https://overunity.com/14734/akula-1-kwatt-free-energy-generator/msg408461/#msg408461 , a poza tym łatwo się zorientować co jest konwencjonalne, czyli wszystko oprócz "zboczonego transformatora (cewki jak kto woli)".

[pix]

Ten schemat: https://overunity.com/14734/akula-1-kwatt-free-energy-generator/msg408461/#msg408461 , a poza tym łatwo się zorientować co jest konwencjonalne, czyli wszystko oprócz "zboczonego transformatora (cewki jak kto woli)".

If somebody doesn't know the principle, schematics won't help.


Cheers
Pix

[lukaszkwiatkowskii]

Jeśli ktoś nie zna podstaw elektroniki a tym bardziej nie chce się z nimi zapoznać oraz oczekuje gotowych rozwiązań, to nie ważne o co by pytał i tak niczego nie zrozumie, więc tak naprawdę traci tylko czas.