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

[callanan]

Hi All,

Please see the following video for my new rotor. I am currently uploading my latest Steorn replication motor's first test run and the results are utterly amazing!!! With just two of my own wound toroid coils I can get the rotor to over 2000 RPM with just 100ma at 12V of input power!!!

http://www.youtube.com/watch?v=Ty17tGOWvi4

The rotor is big and heavy and the bearings are not that flash either!

Regards,

Ossie

[del_toro_es]

 :)If, as J L Naudin claims: “There is no direct interaction of the magnetic field of the torus with the magnetic field of the rotor magnets.”,  the ease way to increase the motor power is use a more strong magnets or several magnets at the same position  in the rotor. In the steorn device they use 2 magnets per position.

[callanan]

Hi All,

Please see the following video for my new rotor. I am currently uploading my latest Steorn replication motor's first test run and the results are utterly amazing!!! With just two of my own wound toroid coils I can get the rotor to over 2000 RPM with just 100ma at 12V of input power!!!

http://www.youtube.com/watch?v=Ty17tGOWvi4

The rotor is big and heavy and the bearings are not that flash either!

Regards,

Ossie

Hi All,

Here is the first test run of my latest Steorn replication motor in the link below. The motor can get to speeds of over 2000 RPM and more for a constant input power of only 100ma at 12V. The only speed limitation appears to be the reed switch with this current test setup.

The rotor weighs 450 grams. I am only using two toroid coils that I have wound myself at the moment but will increase this to four very soon.

The tuning of the timing and pulse width is the most difficult and important thing to get the motor to run at speed but it is essential. The reed switch allows you to do this quickly by feel. Electronic sensors can switch faster but will need to be elaborate to adjust accurate timing and pulse width but it is what is needed to take advantage of the full potential of this motor.

There is definately a sweet spot where the motor just takes off with no increase in the input power. The sweet spot changes depending on the RPMs so from 0-2000 RPM the sweet spot moves so an active timing system maybe necessary.

No heat can be felt on the coils even after running for over ten minutes.

This motor is nothing like anything I have worked with before. It is far more like a combustion engine then an electric motor! There appears to be no link between the input power and the output performance in terms of rotor acceleration (torque). Once you hit the spot, it just takes off!!!



http://www.youtube.com/watch?v=kU-MRSk-brQ


I do not see any limitation to being able to engineer this motor to use even less input power whilst increasing the output performance of the rotor. You just got to build it to understand...

Also, please see below the circuit I used for the test setup I used in the above video.

Regards,

Ossie

[tinu]

it is not fully recoverable, you have ohmic loses unless you make coil and everything superconductive..
and than you have spent more on input on doing that...

It would be great to be just ohmic loses but there is more. Effectively, part of the electric energy is transferred from the core magnetic dipoles (core magnetic domains, if you want) to the outside magnet(s). The fact that a current in the toroidal coil shifts the magnetic potential energy of the core in respect to the external magnet can be clearly seen from TK’s experiments (links above, in my previous post). From there, it is evident that a change in potential energy is ultimately transformed into kinetic energy of the rotor.

@ all,

For those who wonder how I’ve got to the above and what’s exactly in my mind (well, assuming it’s more than nothing ), my step-by-step reasoning is:
1. external magnet approaches the un-energized core;
2. magnetic domains in the core seek the minimum magnetic potential energy state (effectively they align with the external field);
3. electric current is applied to the toroidal coil; magnetic field inside the toroid is reorienting the magnetic domains in the core. (This is, in physics’ terms, the potential energy state of the core in respect to the outside magnet is being shifted to a higher value; potential energy is considered negative, by convention.)
4. Reorienting the magnetic dipoles inside the core is an energy demanding process because dipoles are “glued in place” by the already existing magnetic field imposed by the external magnet. As long as the external magnetic field does not change in time, all energy is theoretically recoverable as back EMF; unfortunately the magnetic field is time dependant because the external magnet is moving, hence less energy is recoverable.

My kind suggestion to all before criticizing me is try understanding the above. Mechanical thinking may well do it: make an imaginary core composed of several “elementary magnetic dipoles” (several small bar magnets, to be clearer). It should be obvious to anyone that a higher magnetic field inside the toroid (hence a higher electric current in the coil, hence a higher input energy) is needed in order to re-orient the bar magnets in the core when external magnetic field is present as compared to the case when there is no outside magnet. A mathematical difference of that kind of energies (a difference between two potential energy states) is what makes the rotor moving.

Bad news is that, according to the above, I have to disagree that the kinetic energy of the rotor comes from nowhere and although I may be wrong in my reasoning, as the possible mechanism of the Orbo motor is given in the above, please post alternative explanations instead of just a rebuttal based on no arguments.

Last but not least, I’m not saying Steorn is not onto something real. Hopefully it is!
I’m just saying that so far we were given one demo, which expectantly is only one piece of a larger puzzle but so far the part we have is not new neither particularly remarkable. I’ll take it as a mere lesson Sean want us to take and I’ll wait either for further findings from experimenters to open new paths ahead or for the next Orbo demo, whichever comes first.

Best regards,
Happy New Year!
Tinu

[tinu]

This statement is not true. Reasons:

1) Current in coil never causes attraction of magnet.

Current in coil CAUSES attraction of magnet.
Proof: http://www.youtube.com/watch?v=1yurZxrKkeo&feature=related

Please stick on facts.

Cheers,
Tinu