MEMM

[PaulLowrance]

Hi Rob,

Nice picture!

Surely you are tired of the induction measurements, but if by chance you already know, how much current peak-peak did your induction meter generate while measuring your Metglas core?

I'm wondering if there are induction meters that first attempt to degauss the inductor before measuring the inductance?  Metglas cores are highly unusual in that -->

1. They saturate at practically no applied energy. I wouldn't be surprised if they saturate from a person sneezing. ;-)
2. There permeability is so intensely high that it would require the induction meter to apply very low amount of AC current. Otherwise the meter is just saturating the core. The meter will still report induction even if the core saturates because of the materials high permeability during magnetic flip while measuring inductance.


Regards,
Paul Lowrance

[Hoppy]

Are there any lower priced and more readily available suitable lower permeability alternatives to Metglas cores available in the UK?

Regards
Hoppy

[PaulLowrance]

Well, Naudin did a cheap silicon iron version, but I showed errors in his interpretation of the scope shots.  Surely it's possible to get "free energy" from silicon iron, but it seems very difficult and not sure the present MEG design can do it.

The Metglas MEG is another story. Unless Naudin faked the Metglas MEG scope shots it shows "free energy," but according to the theory the timing and everything has to be just right.  It's unknown just precisely how critical everything is.  Hopefully Rob will find out, especially if he can get in contact with Naudin. :-)


Regards,
Paul Lowrance

[MeggerMan]

Hi,
No reply from Naudin :O(

The core can be ordered from the Elna magnetics in the US, for about ?100 for the AMC-320.
Still waiting to see if I can avoid the import duty of an extra ?20 with FedEx because it is a sample core for testing.

I will see what I can find out about the LCR meter but I would imagine the power is going to be very very low or the PP3 9V battery will not last very long.
I could use a second meter to measure the current draw off the supply battery.

Regards

Rob

[PaulLowrance]

I wonder what happened to Naudin.


Rob, I just noticed your avatar pic.  Very nice!  Did you just change it?


Regards,
Paul Lowrance