Searching for Buddy in promising magnet motor Project.

[Low-Q]

I was trying to talk about this with a PHD in electrotechnics and it turned out these guys can only recite wikipedia formulas without to understand them, really, that is the state of academics these days, and have never built any device in all their lifetime.


So, smartasses stay away from here, I need practical people with real world experience and a profund, personal and complete understanding of induction.

Induction should absolutely be comprehensible. I haven't read the whole thread yet - my fingers just pressed "Quote" and I did start to type this :-))


Vidar

[Floor]

@dieter

           My experiences are some times similar. 

In my toipcs, some times, it seems I am talking to an empty
room.

One never knows when or if, some one else will come along
who has.... both the time and intrest to come back with something
relevant.

On accasions, I have simply posted my results /  next steps, ideas...
so on and nothing happens at al .... or.....  not for a while.

Some times this is because the topic is usless....

Some times its because of who knows ? maybe just the timeing ?

                         So don't worry about it..

Many times I don't comment on other peoples  topics ... because I'm not qualified
to do so....It's over my head.
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................................................................................................

Some times people are    NOT    understanding a subject... but they think they are / are quite
certain that they do understand it. 
                    and so
they raise passionate and often well founded objections to that subject (which they are
certain they have understood... but which infact they have no understanding at all) 
(at least in the context in which the topics founder is presenting his information).

While at the same time.... their objection, based upon correct understanding, is very accurate
if looked at from THEIR context.

It can be very difficult to get some one to see a subtle difference in context...
especially if that person has a lot of knowledge in a particular area of science.

People. typically / eventually....come to a place where they think they have seen it all.....
and their projections of some point of view, upon a subject is then very difficult for
them to change it. 

                         They may not see that..... 
what is very true / always has been true... under all conditions they have ever observed.... 
are simple not what is being looked at / discussed.

case in point
one definition of work and then .... physic's definition of work.
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.............................................................................


If an electric current is flowing.... the electric potential is changing.

The potentuial may be MAINTAINED as constant at some SPECIFIC
measurement point  (ie. a regulateing power supply)...
but down the line ... and at both ends of that current flow...
there is a potential change.... or at least  convention so holds it.

An electric potential changes.... and / or.... is created, due to a current flow......
                             or
An electric potential changes and / or is created, due to the magnetic
component of the electric/magnetic...... the electric/magnetic always..... co exist
are aspects of a same phenominon.

These are basics... which I am sure you are allready fully aware of.

But its where I would focus if I were the one doing your / this exploration.

It's not that the basics are invalid...  I  think rather that...it is the assumptions
which are / have been made about those basics .....
                 and
what those basics SEEM to imply..... but perhaps do not.... that we might examine.
.............................................
Dia magnetizm is very weak, not perhaps useful in a motor / shield ?

Your crushed magnet approch gives you layers in which plane ?
What polarity orientations in the layers, do you intend ?

                            regards
                               floor

[sm0ky2]

@Deiter


To be honest, after the first standard obscurities, when you
Began to vaguely describe your idea...
You lost me.
I have no idea in what context you mean to say "increasing magnetic field"
Because you associate this also with "approachig field" concepts.
To me these are two separate mechanisms of magnetic fields.
Strength, being a matter of density, separate from field dimensions
Together, size and strength of the field give its characteristics of field gradient.
Electromagnetic fields are different, in that they have the electric vector and
associated time constant.
In a permanent magnet, the electric vector is 90-degrees to that of induction,
and manifests itself as a purely magnetic effect on the large scale.
Thus there is no "time".


I tried to follow you through your rants about other people's inability to
Understand what you are talking about, and then again you lost me
When you described an unobtainable magnet size.
Now I'm in America
And it seemed to me that you want a magnet
That is 2inches in diameter , and 0.2 inches thick???
That would likely break itself in any conceivable use platform.
Is there no way for you to use something thicker?
If not, my suggestion would be to sacrifice "field strength"
For the ability to obtain a smaller physical size magnet.
Something like ironferrite or Sumeriam-cobalt
These could be safely cut that thin and hold up against
Minor abuse.
There are also magnetic tape, and sheets of thin stuff
You can cut.
These are mostly soft-rubber magnets with some %ferrite
and are weaker than ceramics of similar dimension.
Ceramicferrite magnets may work for whatever you are trying
To do, just use caution when breaking or cutting them.
You can scratch a groove in a ceramic and get them to
Break along fairly straight lines.


As far as "back emf" is concerned:
Here is only one Authority whom understands the process
Of back emf, and how to eliminate or avoid it.
His name is Jim Murray


This is just a you tube video, short and to the point
But I recommend viewing a few of his lectures.
https://youtu.be/HK3JOlY0V8Y


This is the foremost expert in the field of back-emf research
And the only man on earth to successfully demonstrate how to
Avoid back emf in three formats: magnetic-mechanical, electric,
And with solid-state electronics.
He is also an expert in recycling electricity through circuits,
Using feedback loops and switches to return current through a
Circuit, from whence it came.
Thus double, triple using it, or more until it is all "really used".
Yes- he figured out that we don't use most of our electricity
We just pass it through the circuit and let it go.
He knows how to catch it and bring it back.

[shylo]

Wouldn't just placing a strong neo at one end of a 6 inch long, 32nd of an inch,
piece of laminate steel ,give you your, strong, thin, magnet ,at the opposite end?
artv

[dieter]

Thanks for all your responses, I may respond to few points later.


Here are some FEMM screens with explanations.


Here's a test arrangement. Top Magnet is eg. strong Neo, Bottom coil is passive atm. Everything between these two is the Rotor.