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

[neptune]

Can I thank Gravity Block for seriously considering my Recording tape idea . It may or may not turn out to be useless. However , in radical research one needs to leave no stone unturned. I would be the first to say that I know precious little about magnetic materials , but by not laughing at me, you will encourage other radical ideas , maybe the ones that lead to success. Thanks.

[PaulLowrance]

As far as I can tell, the ultra high permeability core is good for eliminating the need to get the core to the *start* of the saturation curve. After doing countless measurements on the scope with the "tiny orbo replication," I can tell you that anything below saturating is meaningless. In an ordinary core it takes an appreciable amount of energy just to get into the start of the saturation curve. With ultra high perm. cores such as Metglas & Finemet it takes hardly no energy. Once well into the saturation area, then real work can be done in forcing the domains back into an overall closed loop alignment. The fact that the MAGAMP is longitudinally annealed might help reduce the force required to realign the domains away from the magnet since the MAGAMP wants to align longitudinally.

Anyhow, I have a bunch of Finemet cores. Most of them are kind of fat, so that's not too good for the Orbo because you need a longer pulse width just to accomplish the same thing. If you get some Finemet cores, then see if they sell thin ones.

[Bruce_TPU]

Yes when you wond a toroid you have not ony put coil around a toroid but you have also one loop along the toroid axis.

.... might be interesting to repeat the vector potential experiment with one orizontal loop-back to correct the horizontal loop , to check if the vector potential is real .

http://jnaudin.free.fr/vpexp/index.htm

Hi Ossie,

This man told us this already and few listened and few looked at his circuit.  It is wound exactly like JLN Labs has said.  Check it out, at bottom.

Cheers,

Bruce
http://energyfreedomreport.com

[0c]

As far as I can tell, the ultra high permeability core is A for eliminating the need to get the core to the *start* of the saturation curve. After doing countless measurements on the scope with the "tiny orbo replication," I can tell you that anything below saturating is meaningless. In an ordinary core it takes an appreciable amount of energy just to get into the start of the saturation curve. With ultra high perm. cores such as Metglas & Finemet it takes hardly no energy. Once well into the saturation area, then real work can be done in forcing the domains back into an overall closed loop alignment. The fact that the MAGAMP is longitudinally annealed might help reduce the force required to realign the domains away from the magnet since the MAGAMP wants to align longitudinally.

That longitudinal annealing you mention simply ensures the squarest loop, highest remanence, and lower H field to achieve saturation. As long as you respect the considerations I listed ablove about high remanence, you should see some of the benefits I mentioned - reduced DC power requirement to saturate (the core already retains most of its magnetization), higher permeability at a distance but when magnet gets close permeabilty (and torque) is reduced.

In order to gain more torque, a material with higher Bsat should be used. There may be tradeoffs in other areas, but some of the materials I listed above will provide that additional flux density and still allow for a steep permeability drop in saturation with very little increase in current to get there.

Anyhow, I have a bunch of Finemet cores. Most of them are kind of fat, so that's not too good for the Orbo because you need a longer pulse width just to accomplish the same thing. If you get some Finemet cores, then see if they sell thin ones.

Finemet, Supermendur, etc. should be investigated to see if overall performance and/or efficiency is better or worse than Metglas. If your Finemet cores are heavier, you might want to use more turns. Is the Finemet you have square loop (remanent), magnetic amplifier material or low remanence transformer material?

0c

[LarryC]

This man told us this already and few listened and few looked at his circuit.  It is wound exactly like JLN Labs has said.  Check it out, at bottom.

Bruce
http://energyfreedomreport.com

So he is using a shorted secondary on a 1:1 transformer with the primary in line with the coil. It is an improvement that the secondary is automatically opened for feedback collection. If this is true, I wonder where it could be hidden in their plastic model.

I set up the same test from their replication video, except with a 1 to 1 transformer. It is .4 Ohms per side and approximately 60 winds per side. The secondary of the transformer is shorted and a 1.5 volt D cell is applied. The same settings are used.

I'm showing the lastest and previous trace comparision. It significantly reduces the voltage and current emf curves. Just a little larger than the static. Almost an Orbo? I'll try to dig up a 120 wind 1 to 1 T, but I can't imagine it would make a big difference.

Bruce, where did you find this information?

Regards, Larry