A SQUARE MAGNETIC RAIL -- ROTOR 360 ROTATION

[magnetman12003]

Hi Guys,

I was using real weak craft magnets when I made the movie showing the 2 inch ball turning inside a circular track.  The magnet group angles had to be near perfect to get this to work at all. What the magnet  grouping angles were is unknown to me but the ball stopped turning after a while.

If someone has someone has a bunch of thin rectangular neodymium magnets and trys this they might be surprised what happens. You will have to experiment using different size steel or iron balls for best end of track group rollaway results.  Maybe more than three track magnetic groups??

Tom

[open maind]

LEV2      
LEV2
   


Permanent Magnet Levitator v.2.0

This Kit includes an assembled levitator (version 2.0) complete with pyrolytic graphite as the diamagnetic material, 9 neodymium magnets and detailed instructions. A great science experiment, gift or conversation piece. The LEV2 is a smaller and more compact version of our original Levitator.






shield magnetic ( aislantes magneticos grafito pirolitico y mumetal , μmetal )‏

http://www.youtube.com/v/ZjWdfz9Q0Gc&hl=es&fs=1"></param><param  http://www.youtube.com/v/ZjWdfz9Q0Gc&hl=es&fs=1

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aislantes magneticos grafito pirolitico  :            http://www.seed.slb.com/qa2/FAQView.cfm?ID=1090&Language=ES             http://www.oviedo.es/personales/carbon/grafito%20y%20fibras/grafito.htm


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PARA QUE FUNCIONE LA UNIDAD DE REPELENCIA MAGNETICA O MAGNETIC MILL (MOLINO MAGNETICO) SE DEBEN AISLAR LOS LADOS Y BORDES  DE ATRACCION MAGNETICA EN LOS IMANES DEL EJE O ROTOR ESTO EVITARA LA DISTORCION MAGNETICA  Y ASI EL EJE NO SE FRENARA ASI MISMO.




use imanes circulares  o cuadrados de lo que se trata es tener una superficie amplia para que los choques entre campos magneticos de igual polaridad sean  efectivos.



recuerde  esto  fuerza de torsion y velocidad  de rotor =  aleacion de imanes artificiales / recubra o aisle bordes y lado de atraccion en imanes de rotor para asi evitar  la distorsion magnetica /

JUAN CARLOS AVILES MORAN CREADOR Y DISEÃ'ADOR DE LA UNIDAD DE REPELENCIA MAGNETICA (MAGNETIC MILL)

( email manueljose_888@hotmail.com)


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Mu-metal is a nickel-iron alloy (75% nickel, 15% iron, plus copper and molybdenum) that has very high magnetic permeability. Permeability is represented by μ.
The high permeability makes mu-metal very effective at screening static or low-frequency magnetic fields, which cannot be attenuated by other methods.
Mu-metal requires special heat treatment - annealing in hydrogen atmosphere, which reportedly increases the magnetic permeability about 40 times. The annealing alters the material's crystal structure, aligning the grains and removing some impurities, especially carbon. Mechanical treatment may disrupt the material's grain alignment, leading to a drop in the permeability of the affected areas, which can be restored by repeating the hydrogen annealing step.


[edit] Uses and properties
Mu-metal is used to shield equipment from magnetic fields. For example:

Vacuum chambers for experiments with low-energy electrons, for example photoelectron spectroscopy
Magnetic resonance imaging equipment
The magnetometers used in magnetoencephalography and magnetocardiography
Photomultipliers
Cathode-ray tubes used in analogue oscilloscopes
Superconducting circuits and especially Josephson junction circuits
Electric power transformers, which are built with mu-metal shells to prevent them from affecting nearby circuitry
Magnetic cartridges, which have a mu-metal case to reduce interference when LPs are played back
Hard Drives, which have mu-metal backings to the magnets found in the drive
Other materials with similar magnetic properties are supermalloy, supermumetal, nilomag, sanbold, Molybdenum Permalloy, Sendust, M-1040, Hipernom, HyMu-80, etc.

[nightlife]

open maind, do you have a working prototype? If so, could you post a video link showing it working?

[TinselKoala]

Is it really necessary to spam the forum with repetitive posts and rather frightening photos?

Is it really necessary to remind any of the people reading this forum that mu-metal has high magnetic permeability?

But perhaps it is necessary to remind someone that this high permeability means it is strongly attracted to magnets, even more strongly than, say, pure iron? This is why it "shields" magnets--because the field lines more easily penetrate the mu-metal than other materials. IF you design your mu-metal box cleverly, as we have seen, it will indeed "shield" the magnet inside it--because, and only because, it "sucks up" all the field from that magnet. However, it will still be attracted to external magnets. You might be able to balance the geometry so that in some areas the fields cancel and you think there's no magnetic force present. But just try to remove the mu-metal, in that case. You will find out differently.

Trying to construct a magnetic perpetual motion motor using magnetic shields has been tried before, many times, mostly on paper. When one attempts to construct a shield motor in real life, the problems become very evident, and the inventors usually move quickly on to other pursuits.

By the way, if you take a piece of mu-metal from, say, a surplus component, and you bend it or machine it or work it in any way, it loses some of its magical mu-permeability and must be re-annealed (or however they get all that mu in there). So most of us might as well be using soft iron; it's a lot cheaper.

[wattsup]

@TK

I am putting up a photo of a small standard AC fan motor. The two red arrows are pointing at two copper triple winds that are 180 degrees apart. Would you or anyone else know what these are for to see if such an approach can be used with a magwheel.