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Author Topic: Magnet coil cores, demagnetization power and Lenz delay.  (Read 202601 times)

Offline skycollection

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #30 on: June 26, 2013, 03:22:18 PM »
Yes is correct, i would like to see the corrections in my circuit and perhaps i can make other experiments...! i am working in a mechanical switching  to charge a larger capacitor, i hope i can make it, because i burned 3 big reed swtches very fast....!

Offline skycollection

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #31 on: June 26, 2013, 03:28:04 PM »
This is my second driver circuit, i hope it serves for the corrections....!

Offline conradelektro

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #32 on: June 26, 2013, 10:01:44 PM »
This is my second driver circuit, i hope it serves for the corrections....!

Jorge,

attached please find the modified circuit for "charging a battery" and for 24 V operation (2K in front of Hall sensor and 10 K resistor as a Voltage divider for the base of the MOSFET).

I do not believe in mechanical switching.  Put a 0.1 µF or 0.2 µF capacitor parallel to the mechanical switch to make it last longer.

For feeding back to the drive battery just take away the "charging battery" (only a diode from MOSFET DRAIN to the positive rail), but it will not work. Unfortunately I do not know how to successfully "feed back" the "self inductance of a coil" to the drive battery. I think nobody knows.

Greetings, Conrad

Offline MileHigh

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #33 on: June 27, 2013, 01:06:46 AM »
Conrad:

I hope that when you use a diode to direct the discharging energy from a coil that you look at your schematic and work out how the current will flow.  Don't make any assumptions, that's unwise when you discuss electronics.

The Ossie motor multiple-diode configuration can route the coil discharge energy back to the source battery.  It may give you a longer run time because of that but that's all, there will be no magic.  I know that many people built replications and had hopes of over unity but that was never going to happen.

Conrad and Jorge:

Your new schematic will charge the charging battery.  If you are interested you should measure the power the supply battery puts into the motor, and the power that goes to the charging battery.  Comparing the two gives you some meaningful data.

Beyond that, as Farmhand has stated in the past; a motor that just spins and has no useful output does not really do anything.  So that's something for you to think about.  Is there any interest in building some kind of motor that does something useful?

MileHigh

Offline totoalas

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #34 on: June 27, 2013, 02:11:37 AM »
http://www.youtube.com/watch?v=nKrL4VCjSXU
 E MAG MOTOR AT LOW RPM
can be done but how????
 
totoalas :)

Offline synchro1

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #35 on: June 28, 2013, 05:31:57 AM »

Although not the purpose of the video, around 2:10 into it he maintains his magnet core speeds the rotor up 25%.





http://www.youtube.com/watch?v=W7rsb0Q9thw[/size]

Offline skycollection

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COMPRESSED SPIRAL RODIN STARSHIP COIL
« Reply #36 on: May 15, 2014, 02:31:24 PM »
COMPRESSED RODIN STARSHIP COIL IS PHYSICALLY ANOTHER COIL, IS A "SPIRAL" COMPRESSED COIL...!
https://www.youtube.com/watch?v=LkFk265MMU0


SALUDOS
FROM MEXICO, JORGE REBOLLEDO

Offline synchro1

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #37 on: June 22, 2014, 04:52:36 PM »
Apparently no Lenz drag!

An E core acts as the magnet:

https://www.youtube.com/watch?v=z4hOlUzrY4I

Offline synchro1

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #38 on: June 23, 2014, 02:15:50 PM »

Quote from Mariuscivic:

"The input is 12V/118mA.
The output is 1.7V and just enough curent to lit the led.
The idea is that at the right distance , the coil is not seen by the rotor".

"At the right distance , the coil is not seen by the rotor"

The E core directs a vectored magnetic field through the solenoid  output coil at 90 degrees, like a diametric core magnet would. This mid coil magnetic hurdle retards the pole shift and hides the output coil from the "Lenz Drag". The "E" core manufactures a field at a right angle to the axis of the output coil. The diametric PM output coil core accomplishes the same thing! Both lateral fields slow the timing of the pole reversal in the output coil. This allows the rotor to slip by the grab spot.
« Last Edit: June 23, 2014, 04:17:34 PM by synchro1 »

Offline synchro1

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #39 on: November 29, 2014, 11:53:56 PM »
@MarkE,
 
I resurrected this old thread of mine to answer the question you posed on the Pulse Motor Build off thread.

Quote from MarkE from the "Pulse Motor Build off Thread":
 
"Synchro, magnetic viscosity is a loss mechanism.  It can be modeled as either a force that opposes the motion, IE like friction it always points against the direction of motion, or it can alternatively be modeled as a magnetic field that always opposes change in the actual magnetic field.  Again that acts as a loss". 
 
@MarkE,
This was a good thread, but the page grew oversized somehow. I'm going to ask Stephan to try and fix it before I respond.
 
 

Offline ramset

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #40 on: November 30, 2014, 12:54:40 AM »
Synchro


At one time we went out of our way here to be respectful and try to keep things Neat and on topic,
finding people to contribute [engineers ,scientists  etc] got harder and harder as that respect
 protocol changed.
we use to start other topics,even had shadow threads on other forums to try and make things more respectful.[I did this here all the time a few years back]


eventually some of us just went and worked privately away from all the noise,we slowly gathered all the resources necessary to cover almost any topic.
it has worked absolutely amazing


and we would like to bring that here ,it will take time But we have started negotiations [not with admin],with certain members who contribute and build here.


I will remove this post and just leave a thank you in a day or so.
I will be starting another topic to discuss this as well as the Bill Alek and GDS threads and there true intent at this forum [the reason I started them.]
then we can decide how this will look.
thx
Chet
PS
of course it can always go back to this Model...


 However it has become quite clear that there are those who would share in a more respectful venue ,
and also quite clear there are those who would support such a venue [NOT TALKING ABOUT COMPETING HERE WITH STEFAN or opening another forum !!!!]


and of course the goal as always is open source .










Offline synchro1

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #41 on: November 30, 2014, 06:29:12 PM »
@MarkE,

Take a close look at this JLN test:

JLN's sliding the coil down an iron core. He gets the "Lenz Delay" at 30mm. My question to you is;
What effect would placing a magnet at the end of the core have on the distance for the DLE effect?
Would it shorten the length increase the length or have no effect on the length?
 
http://jnaudin.free.fr/dlenz/DLE19en.htm

Offline ramset

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #42 on: November 30, 2014, 08:22:22 PM »
Synchro


can we bury the hatchet here,[or the cheeseburger] draw a line between what has gone before and what will happen next?
in the interest of piece and actually getting some answers for you?


we have some people who could add some very interesting comments here.[and peer reviewed work]
and we have some projects that Hover all around this topic...


But We will also need you to sort things out with Mr.Koala,


can you burry the Hatchet?? [and not in anybodies head]
I will not bring others or their work to an embarrassing Venue,[been there done that
way Too many times here.]
?


respectfully
Chet


 

Offline synchro1

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Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #43 on: November 30, 2014, 09:58:53 PM »
Synchro


can we bury the hatchet here,[or the cheeseburger] draw a line between what has gone before and what will happen next?
in the interest of piece and actually getting some answers for you?


we have some people who could add some very interesting comments here.[and peer reviewed work]
and we have some projects that Hover all around this topic...


But We will also need you to sort things out with Mr.Koala,


can you burry the Hatchet?? [and not in anybodies head]
I will not bring others or their work to an embarrassing Venue,[been there done that
way Too many times here.]
?


respectfully
Chet

TK's just a punk!
 

Offline MarkE

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  • Posts: 6830
Re: Magnet coil cores, demagnetization power and Lenz delay.
« Reply #44 on: November 30, 2014, 10:22:27 PM »
Synchro


At one time we went out of our way here to be respectful and try to keep things Neat and on topic,
finding people to contribute [engineers ,scientists  etc] got harder and harder as that respect
 protocol changed.
we use to start other topics,even had shadow threads on other forums to try and make things more respectful.[I did this here all the time a few years back]


eventually some of us just went and worked privately away from all the noise,we slowly gathered all the resources necessary to cover almost any topic.
it has worked absolutely amazing


and we would like to bring that here ,it will take time But we have started negotiations [not with admin],with certain members who contribute and build here.


I will remove this post and just leave a thank you in a day or so.
I will be starting another topic to discuss this as well as the Bill Alek and GDS threads and there true intent at this forum [the reason I started them.]
then we can decide how this will look.
thx
Chet
PS
of course it can always go back to this Model...


 However it has become quite clear that there are those who would share in a more respectful venue ,
and also quite clear there are those who would support such a venue [NOT TALKING ABOUT COMPETING HERE WITH STEFAN or opening another forum !!!!]


and of course the goal as always is open source .
Chet, it is painfully obvious that neither Greg Potter nor Bill Alek have what they claim.  I give Bill Alek a little more wiggle for believing what he says even though what he claims is not true.  Greg Poter has exhausted all his wiggle room.  He's just lying.