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

[captainpecan]

Hi All,

I have found that with the addition of a stator magnet appropriately arranged behind the torroid coil, the torque of the rotor is dramatically increased for the same input power! Please see the following diagram and arrangement.

Regards,

Ossie

Awesome, thanks for testing that.  I brought that up the other day to try, but I have been waiting for a day off of work so I could start building and testing myself!  Good work!

Another thing that may be key to experiment with, is to see the difference made when using stronger, and weaker magnets compared to energy used to release the magnetic attraction.  I am hoping when you hit the correct power in that saturates the toroid, we may be able to increase the power of the magnets without requiring more input energy.  After all, stronger magnets, stronger rotor attraction, but maybe the same energy needed to let it pass by.

[lumen]

It should always take the same current to saturate the core regardless of the passing magnets strength. Just find a core that saturates in a weaker field and it should use less current.

[tinu]

http://www.youtube.com/watch?v=1yurZxrKkeo&feature=related
and
http://www.youtube.com/watch?v=BX0YZyI75bM

"As you can see, the moving magnets do generate EMF in the coil; when the coil is energised with a DC current, the magnitude of the EMF generated by the magnets decreases, as shown on the oscilloscope.

What is yet to be determined is whether the EMF is actually decreasing as a result of "shielding", or being smoothed out by the battery, acting much like a capacitor to smooth ripple."

[WilbyInebriated]

http://www.youtube.com/watch?v=1yurZxrKkeo&feature=related
and
http://www.youtube.com/watch?v=BX0YZyI75bM

"As you can see, the moving magnets do generate EMF in the coil; when the coil is energised with a DC current, the magnitude of the EMF generated by the magnets decreases, as shown on the oscilloscope.

What is yet to be determined is whether the EMF is actually decreasing as a result of "shielding", or being smoothed out by the battery, acting much like a capacitor to smooth ripple."

holy crap he says 'ahh' way too much. the guy needs a script or something. trying to decipher what the man is trying to say amidst all the pauses, umms and ahhhs... is almost painful. nice construction on the marinov though.

[captainpecan]

It should always take the same current to saturate the core regardless of the passing magnets strength. Just find a core that saturates in a weaker field and it should use less current.

That's what I was meaning.  I can't seem to get any larger toroids locally anywhere, so I decided to go ahead and use about 3/4" I got from the shack. May end up more like an Orbo toy, lol.  Not very big, but it may help me see results at fairly low current. It should be easy for me to test different strength magnets with it to see if I can get more power, without having to use more energy once I find the sweet spot. I'll post what I come up with.