Self accelerating reed switch magnet spinner.

[conradelektro]

I found a "horse shoe magnet" in my left over boxes (relicts of former experiments). Is this a horse shoe magnet equivalent?

Four strong Neodymium disk magnets and two soft iron bars stuck to the disk magnet stack (to form a near U-shape). It seems to hold a third soft iron bar like a horse shoe magnet (a bridge over the open end of the U-shape).

One could use thicker soft iron bars and file them to a round shape where they touch the disk magnet stack. In fact, the bar which is held over the open end of the U-shape has been filed to a round shape at one end, but I never made a second one, because the rectangular soft iron bars seemed to work as well.

I could wind a coil on each rectangular soft iron bar or over the disk magnets (may be use smaller magnets and smaller soft iron bars)? Looking at Gray's stuff and the videos concerning the "neutral line" I do not see a "synchro coil"? Therefore "horse shoe magnets" float around in my head? I do not refuse to build a "synchro coil", just thinking and speculating. We are in uncharted territory of strange tales and forgotten head lines of almost 100 years ago.

Greetings, Conrad

[gyulasun]

...
Please look at the attached drawing, is A or B the euivalent of a horse shoe magnet or none?

Hi Conrad,

Yes those setups you show are horse shoe variants indeed but I think you can get a stronger i.e. better horse shoe magnet when you arrange the setup as I show in your modified drawing, version A.
Magnet stacking is not essential but adds more flux, and it is better for the flux transfer when the facing surfaces (between the magnets and the prongs of the curved or straight soft iron) have more or less the same surface area.
I included a C variant too, I believe to be also a good substitute for a real horse shoe magnet. Graham mentioned attaching strong Neo magnets (in correct attract mode) to the ends of a ceramic or ALNICO horse shoe magnet because the latter types are much cheaper than to order an expensive custom made Neo horse shoe magnet (you cannot really find horse shoe shaped Neo magnets, however you can find relatively cheap or moderate priced ceramic or ALNICO horse shoe magnets sold for educational (school) physics labs etc but then now you can build such from normal Neos and soft iron).
Essentially what is required for the Wesley Gary's effect (to get the neutral line for a 'keeper' iron) is to have two unlike magnetic poles bridged on one of their common sides (i.e. via the horse shoe or straight piece) and place a 'keeper' iron piece on the other side of the magnet poles where the neutral line develops.

Of course you place the output coil onto the 'keeper' soft iron (which is positioned in the neutral zone), this means you have to use either (thin) laminated core or maybe ferrite core to get rid of eddy current losses when you load the output coil. The frequency of the output voltage is defined by the speed of the mechanical 'vibration' the keeper core is oscillated with.  If you prefer to use the word 'syncro coil' for the output coil, so be it, though I have not followed this thread recently to figure out what it is.

I think some of Graham's further (single) postings are worth reading here when you have time:

http://www.energeticforum.com/renewable-energy/3639-multiplication-electrical-energy-moving-neutral-induction-line-space.html#post242176 
http://www.energeticforum.com/renewable-energy/14534-use-force-luke-use-force.html#post242384 
http://www.energeticforum.com/renewable-energy/14534-use-force-luke-use-force-2.html#post242829
http://www.energeticforum.com/renewable-energy/14534-use-force-luke-use-force-2.html#post242877
http://www.energeticforum.com/renewable-energy/12413-mr-lester-j-hendershots-magnetic-generator-14.html#post242104
http://www.energeticforum.com/renewable-energy/12413-mr-lester-j-hendershots-magnetic-generator-15.html#post243155
http://www.energeticforum.com/renewable-energy/12413-mr-lester-j-hendershots-magnetic-generator-15.html#post243189
http://www.energeticforum.com/renewable-energy/14534-use-force-luke-use-force-3.html#post243357

Greetings,  Gyula

[synchro1]

@Conradelektro,

I tried to buy a Piezo actuator to act as a positioner, but I did not think of a one sided Hall effect sensor . Interfacing the Piezo actuator with a voltage reader caused me an insurmountable problem. Perhaps the combination of these two simple components may work the magic. Good idea! We can simply glue a cheap Piezo actuator to the back end of the magnet stack and attach it to a brace on the coil face. We can then glue the Hall effect sensor to a plastic extender on the front of the magnet stack. Now all we need is a tiny battery and circuit between the actuator and the sensor. This shouldn't draw hardly any power at all.


The diametric magnet field would resemble a horseshoe magnet field on the end through a magnetic flux viewer. The Bloch wall or neutral zone between the poles would be centered in each case.

[conradelektro]

Thank you Gyula and synchro1 for your explanations.

To clarify for all readers what synchro1 proposes, I made a drawing of the "synchro coil" (a generator coil).

I do not realy see the connection (the equivalent components) between a "Gary horshoe magnet neutral line / plate near the neutral line" and what synchro1 proposes (the "synchro coil" near the spinning magnet)?

Synchro1 could you formulate your thoughts on the connection between the "Gary setup" and your "synchro coil"?

I understand that Gyula envisions the generator coil on the plate near or exactly at the neutral line in front of a horse shoe magnet (what I call the "Gary setup").

The Piezo actuator sounds great but it is too early for me to go into that. I want to experiment with a "synchro coil" near my two magnetspinners first. May be one has to go back to the "Gary setup" with a coil on the plate and glue the plate to the Piezo actuator?

Greetings, Conrad

P.S.: "Gary setup" is Fig.1 to Fig.4 from synchro1's post http://www.overunity.com/13852/self-accelerating-reed-switch-magnet-spinner/msg379824/#msg379824

[synchro1]

Here's a schematic of Domain walls: