Throwing ideas around, mumetal and diamagnetic materials

[V-Spec]

Hey Guys,

Long time lurker first time poster, been interested in these things for a while now.

Ive come up with a potential idea for a simple magnetic motor that's been around for ages, see attachment so you know what idea im talking about.

instead of using a superconductor for the purple shield i was thinking of using thin mumetal with and outside coating of something diamagnetic such as pyrolytic carbon or bismuth.

If you get the right ratio on the shield will it will cancel the rotor magnets attraction to the mumetal while shielding it from the opposite rotor magnet until it repels when it moves away from the shield.

no need for a superconductor.. am i on the right track? or am i missing something.

Rich

[gravityblock]

Hey Guys,

Long time lurker first time poster, been interested in these things for a while now.

Ive come up with a potential idea for a simple magnetic motor that's been around for ages, see attachment so you know what idea im talking about.

instead of using a superconductor for the purple shield i was thinking of using thin mumetal with and outside coating of something diamagnetic such as pyrolytic carbon or bismuth.

If you get the right ratio on the shield will it will cancel the rotor magnets attraction to the mumetal while shielding it from the opposite rotor magnet until it repels when it moves away from the shield.

no need for a superconductor.. am i on the right track? or am i missing something.

Rich

In that configuration, the mumetal won't shield it from the opposite rotor magnet due to the same poles on both rotors.  These two videos will show you the correct configurations in order to shield or divert the flux properly,  http://www.youtube.com/user/gravityblock#p/u/24/_81SxByRNR8 and http://www.youtube.com/watch?v=aJFgMB5ezsE

GB

[V-Spec]

In that configuration, the mumetal won't shield it from the opposite rotor magnet due to the same poles on both rotors.  These two videos will show you the correct configurations in order to shield or divert the flux properly,  http://www.youtube.com/user/gravityblock#p/u/24/_81SxByRNR8 and http://www.youtube.com/watch?v=aJFgMB5ezsE

GB

that's a very interesting effect!!! i just tested it out now!

so if you're saying to alternate the polarity for every second rotor magnet to promote the shielding effect of the mu? sounds like it would help and not effect why it works

bismuth is probly easier to work with and cheaper than pyrolytic graphite, im not sure of the densities required to have a strong enough diamagnetic effect.

anyone done this or tryed something like this before?

[e2matrix]

In that configuration, the mumetal won't shield it from the opposite rotor magnet due to the same poles on both rotors.  These two videos will show you the correct configurations in order to shield or divert the flux properly,  http://www.youtube.com/user/gravityblock#p/u/24/_81SxByRNR8 and http://www.youtube.com/watch?v=aJFgMB5ezsE

GB

The effect you show in the video seems to work just as well on regular metal as well as mumetal. 

[gyulasun]

Hi Rich,

The problem with bismuth is that it has a magnetic permeability very very near to that of the air, this means that its 'shielding' effect can only come from its thickness or volume in space: this means you could equally use air gap as well, no need for bismuth.... unfortunately. Though pyrolytic graphite is even more diamagnetic than bismuth but still not enough for meaningful shielding effect, this is my opinion of course.

Would like to show you an old thread here with an interesting idea from a ex-member, m668004:  http://www.overunity.com/index.php?topic=309.0

The drawing he showed is an animated one, if you download and watch in a normal picture viewer, the inner two magnets are rotated together to make the lower end of the soft iron bar magnetic or nonmagnetic. The input energy for the rotation seems to be only to defeat axle friction and air resistance, once the two magnets are speeded up.

Gyula