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

[Jimboot]

I've come across some interesting information on the Aharonovâ€"Bohm effect, and I think it is related to the Orbo effect in many ways.  It has to do with the rise time and decay time of the pulse.  Also, with nano-crystalline or layered crystalline materials, such as metglas.  It shows how the core materials and construction freely localizes the B-field (the curled component of the A-potential), and how that leaves the uncurled A-potential extending out into surrounding space.

An easy way to show this localization is to place a strong straight bar permanent magnet in the inside air space of the transformer, across its open diameter. Air gaps at the contact ends should be absolutely minimized. For a core exhibiting the AB effect, almost the entire magnetic field B of the magnet is drawn into the localization area and no longer spills out into space around the bar magnet! A good magnetic field meter with excellent probe, placed directly against the surface of the magnet over one of its poles, will show almost zero “spilling out into space” of the magnetic field B. If this effect does not happen, then one knows that the core is not exhibiting B-localization and is not producing the Aharonov-Bohm effect.

References:

http://en.wikipedia.org/wiki/Aharonov-Bohm_effect

http://peswiki.com/index.php/Site:LRP:The_Suppression_of_the_M.E.G._by_General_Electric

http://www.cheniere.org/techpapers/On%20the%20Aharonov-Bohm%20Effect1.doc


GB

I thought amorphous alloys were non-crystaline

[gravityblock]

I thought amorphous alloys were non-crystaline

FINEMET alloy is a nanocrystalline material obtained by heat treating an iron based amorphous alloy, http://www.metglas.com/products/page5_2_2_1.htm

Should we be using the FINEMET square loop magnetic cores instead of the Metglas square loop magnetic cores?  Is Metglas square loop cores a nanocrystalline material like the FINEMET square loop cores?

GB

[Airstriker]

FINEMET alloy is a nanocrystalline material obtained by heat treating an iron based amorphous alloy, http://www.metglas.com/products/page5_2_2_1.htm

Should we be using the FINEMET square loop A cores instead of the Metglas square loop A cores?  Is Metglas square loop cores a nanocrystalline material like the FINEMET square loop cores?

GB

IMHO Saturation induction at 20°C 1.23 T makes it not usable in ORBO application. At least not in the one we're trying to replicate. But it could be usefull in the bigger unit as it would mean that you can use stronger magnets.

[gravityblock]

IMHO Saturation induction at 20°C 1.23 T makes it not usable in ORBO application. At least not in the one we're trying to replicate. But it could be usefull in the bigger unit as it would mean that you can use stronger magnets.

Saturation flux density for both Metglas square loop and Finemet square loop cores are 0.57T.  The maximum saturation flux density for Finemet is 1.23T at 20 degrees.  I can't find what the maximum saturation flux density for Metglas square loop cores are at 20 degrees, it doesn't say.....unless I'm overlooking something or not understanding something properly.

Saturation induction is the maximum intrinsic induction possible in a material. Also known as saturation flux density.  Saturation flux density is the state reached when an increase in applied external magnetizing field H cannot increase the magnetization of the material further, so the total magnetic field B levels off and can be seen in the BH curve or hysteresis curve.

IMO, the Finemet square loop cores need to be tested.  This looks promising to me and appears to be a good candidate to have an Aharonovâ€"Bohm effect which could be what the Orbo effect is based on.


GB

[Airstriker]

Saturation flux density for both Metglas square loop and Finemet square loop cores are 0.57T.  The maximum saturation flux density for Finemet is 1.23T at 20 A.  I can't find what the maximum saturation flux density for Metglas square loop cores are at 20 degrees, it doesn't say.....unless I'm overlooking something or not understanding something properly.

Yes I've also noticed that but looking at the hysteresis loop makes me think that they've just simply made a mistake in the table. All in all Bsat for Finemet is 1.23T.