Working Magnetic Motor on you tube??

[Rosphere]

But that d*mned acceleration, what will account for that?

That is the big mystery that keeps me interested.

Me too.  Until I had this dreadful thought:  http://www.overunity.com/index.php?topic=3949.msg72401#msg72401

[Jdo300]

@Jdo300,

As far as I remember @btentzer posted this link http://www.geocities.com/deasyart/steorn/OC_sim_one_stator_a.JPG with results of a simulation. I don't know who did it. Were you able to reproduce it and if so is it possible to show the results with different rotor to stator magnetic field strengths, especially the cutoff ratio whereby the effect disappears?

Not sure what you're referring to there. It seems that the link you mentioned doesn't work. But as far as simulations go. I have done a few basic ones to get a rough idea of what is happening but they are, for the moment, completely useless since it seems that the rotation of the stator is far from linear. Once we can take some emperical measurements to characterize the rotation of the stator magnets with respect to the rotor, then I can write a Lua script to exactly imitate the stator motion. until then, I havnen't really gotten to deep with the sims yet.

By the way, has anyone come up with a good, nonobtrusive way to measure the velocity of the stator magnets? so far the best I've see are coils, but I'm trying to think of a way to do it that wont drag on the magnets.

God Bless,
Jason O

[Omnibus]

@Jdo300,

Strange the link doesn't open where you are. Works good with me. I wonder if @btentzer remembers who did this simulation to learn more details about it. Main thing is to see how important the stator to rotor magnetic field ratio is. As for the stator speed, isn't the laser tachometer good for that purpose? Mine hasn't arrived yet to try it.

[RunningBare]

By the way, has anyone come up with a good, nonobtrusive way to measure the velocity of the stator magnets? so far the best I've see are coils, but I'm trying to think of a way to do it that wont drag on the magnets.

God Bless,
Jason O

A hall effects sensor is one way to do it, but the simplest method I believe has already been mentioned is a laser tachometer , what I would add is painting vertical lines on the stator magnet at regular intervals, lots of them, this way you would be able to measure change over a single cycle.

[Mr.Entropy]

Speculation: As Ice skaters pull their arms in to speed up it could be some magnetic form of this.

To make that work, a skater has to pull her arms in.  If you cut them off, she doesn't go any faster.