Radus boots = permanent magnet on/off switch?

[Blainiac]

is the effect actually useful for OU research?

I'm not sure, I think it could be.  Almost all permanent magnet setups eventually require you to 'turn off' a permanent magnet for a duration of the 360 (for a wankel spiral motor, or many other designs).  Although it requires only a small pulse of electricity to switch flux direction, it's like an electromagnet, but requires only the small pulse to either turn on or off.  I think it could be useful...  Not sure.  Any bit helps towards that end goal.

[lwh]

Thanks for the links to the video and article.

As far as I understand it though, the small voltage applied to the magnet/s doesn't switch them off, it increases their magnetic strength something like fourfold.  This means that in the right system, when the voltage is switched off, the magnets lose so much comparative strength as to be effectively turned off.

This alternating boosting and returning to normal strength of the magnets can be used to overcome the 'sticky spot' in the right kind of system.  The question for me is, can the mechanical work being done by that system be made to generate the voltage required to 'switch' the magnet/s 'on/off'.  If it can, then the building of a self running apparatus simply becomes an engineering task.   

[Steven Dufresne]

I don't think the coils do anything at all to the magnets. The coils look like they're on the material that is on either side of each magnet. When the pulse of current is run through the coils they magnetize that material. A pulse in one direction magnetizes the material with the same polarity of the magnet and so the magnets+material combined result in a single strong magnet. A pulse in the other direction magnetizes the material with the opposite polarity of the magnet resulting in a single, externally weak magnet. The pulse of current is only a pulse, as indicated by the newspaper article, and is not needed to be on constantly.

That's my guess anyway. It'd be interesting to try.
-Steve
http://rimstar.org   http://wsminfo.org

[gyulasun]

Hi Steve,

I think you correctly described how the "boots" were designed to operate. It would surely work and would firmly fasten the boots to magnetizable metal surfaces when switched. 

To All,

If you wish to utilize this setup and make a motor from it for instance, then one possible solution is the stators could be this setup, arranged at 12,  3,  6  and  9  o'clock positions and the rotor could include 4 soft iron keepers (fixed to a non-magnetic cylinder structure that has a shaft). The 4 keepers would pass in front of the 4 pair of stator yokes (made also of soft iron) all oriented towards the shaft.  The air gap between the rotor soft iron keepers and the stator yokes should be the minimum possible of course so that the attraction force on approach BE the highest possible. And you would pulse the coils to steer the flux from the yokes away at just the moment the rotor keepers are exactly facing the stator yokes.  And when the rotor keepers almost cover the distance between two neighbouring stator yokes, you would have to switch on the pulse again to bring the attract flux from the magnets to "fill" the yokes with flux again.

So far this sounds simple and good but...

here comes a problem: flux steered to the outer stator keepers via the yokes would not readily go again to the rotor side's direction towards the rotor keepers as long as the reluctance due to the (decreasing) air gap becomes comparable to the reluctance path of the stator keepers... unfortunately.

This would mean that the attract force could act on a very short distance just when the rotor keepers are almost in the facing position to the stator yokes.  Of course this drawback could be compansated by using more than 4 stator setups, (the more stator setups and correspondingly rotor keepers you use the more rotor torque you would get, though this would increase motor size and cost).

Another possibility to utilize the "boots" setup for energy generation is a motionless version whereby you would wind output coils onto the keepers and induce voltage in them when steering the flux with the input pulses.  However this solution already sounds like a MEG and I have not seen any MEG working overunity...   only underunity, unfortunately.

rgds,  Gyula

[Blainiac]

Another possibility to utilize the "boots" setup for energy generation is a motionless version whereby you would wind output coils onto the keepers and induce voltage in them when steering the flux with the input pulses.  However this solution already sounds like a MEG and I have not seen any MEG working overunity...   only underunity, unfortunately.

I just drew this after thinking a lot about an easy way to do this and then read your comment.  Something like this?  If you constantly pulse current or have AC in the small switch coils, it could drive the main pickup coils on the side?