STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[callanan]

Hi All,

Merry Xmas,  Stoern MOTOR ONLY replication is here:

http://www.youtube.com/watch?v=HT6KdUECEqE

It is the most basic drive I could build but it does work, it accelerates and there is NO measurable field around the toroid.

Ben

Hi Ben,

Congratulations old friend! It looks like you are the first independant person to replicate and confirm the validity of Steorn's pulse motor drive system/technology. Excellent work and well done! I am sure there will be much more to come. The mind boggles with the possibilities but one does wonder, since it has been a long time coming indeed, if the proverbial cat has been let out of the proverbial bag...

Merry Christmas to all.

Regards,

Ossie

[Omnibus]

@k4zep,

Thanks Ben for the vid. Great job. Is it possible to show the voltage trace at higher resolution (the higher the better) and put weight on the rotor to see if there would be even a slightest back emf? Thanks.

[k4zep]

@k4zep,

Thanks Ben for the vid. Great job. Is it possible to show the voltage trace at higher resolution (the higher the better) and put weight on the rotor to see if there would be even a slightest back emf? Thanks.

Hi OB,

Been working on this since 6:00 a.m., worn out.  But yes, I can show higher resolution but there is just no coupling between the coil and the magnets (well 1 mv generated CEMF) which is zilch.  I'll try to show voltage across coil and current in coil tomorrow.  Just too worn out tonight.  Funny with virtually all the inductance in the coil canceled with the filar design, there is still a hell of a INDUCTIVE kick back like a normal coil but nothing from the external magnets....It would appear that the coil as far as rest of the motor is concerned is just sitting out there doing nothing.  There is virtually no back or CEMF.   As a generator, it only induces 1-2 mv in the coil due to the core being covered/immersed in the coil. Now when the field collapses in the filar coil, it will zap you with inductive kickback!!!!.  It needs a diode across the coil to shunt it back into the coil and add efficiency to the motor.

Thats all for now.
Ben

[PaulLowrance]

Ben,

Once again, nice job! When you get a chance, could you place a DC battery along with an inductor in series with your large toroid while the magnets are spinning and show the a scope trace off voltage across the toroid? The reason for adding the inductor is to help block as much AC going into the battery so you can see the AC voltage produced by the magnets due to the toroid effective permeability changing from the magnets.

This might be revealing what I've seen in FEMM for a long time. I believe Steorn claim is legit, but I don't think it's a simple as it appears here. Indeed there would be no bemf on a perfectly uniform toroid, but this design is an entirely different animal, where the issue is a change in effective permeability.

So once again I think the excess energy would come from magnetic viscosity.

Anyhow, I think you guys will be surprised when you see how the magnets induce AC voltage on the toroid when there's current flowing through the toroid.

[interestedinou]

Hi OB,

Been working on this since 6:00 a.m., worn out.  But yes, I can show higher resolution but there is just no coupling between the coil and the magnets (well 1 mv generated CEMF) which is zilch.  I'll try to show voltage across coil and current in coil tomorrow.  Just too worn out tonight.  Funny with virtually all the inductance in the coil canceled with the filar design, there is still a hell of a INDUCTIVE kick back like a normal coil but nothing from the external magnets....It would appear that the coil as far as rest of the motor is concerned is just sitting out there doing nothing.  There is virtually no back or CEMF.   As a generator, it only induces 1-2 mv in the coil due to the core being covered/immersed in the coil. Now when the field collapses in the filar coil, it will zap you with inductive kickback!!!!.  It needs a diode across the coil to shunt it back into the coil and add efficiency to the motor.

Thats all for now.
Ben

Hello Ben,

I responded to the private message you sent me.

I appreciate you responding.

If you get an opportunity please respond back.

Thanks.