RE: article: New Armor for Magnetic Devices

Carrigan, Ken ( (no email) )
Tue, 20 Jul 1999 15:29:53 -0400

Jer, et all!!!
I concider myself an expert in EM Theory and frankly I am
socked to death! Disbelief is excactly that! I'd love
to see this demonstrated cause I myself thought this
impossible... totally! I have worked this math out before
and no way could it be done. I wonder if this is pure
DC magnetic fields though and not AC or RF? Then maybe
I might believe it, cause phasing would then NOT be a
problem. Hummmm.... very very very interesting still!

If this is true, then we can make fluxgates amplifiers,
fluxgate circulators, VERY VERY sensitive differential
fluxgate transducers, and gradient magnetic waveform
molding to increase the derivitive for induction current
flow! (maybe). Fantastic!! to say the least!

v/r Ken Carrigan

>"We couldn't believe it when we first did the
>mathematics. We found with a short and open outside
>shield, we could get the same perfect suppression
>obtained by an infinite shield," he adds. "We had a
>zero magnetic field everywhere outside, even in those
>regions where there was no secondary coil."
>
>Trapping magnetic fields in a closed container
>presents no problem, but to be able to trap them with
>an open-coil system is what shocked the CWRU research
>physicists. Shvartsman adds that every time they
>describe the result to experts, the initial reaction
>is disbelief.