I may be remembering wrong, but I believe that the evanescent magnetic field strength falls off as 1/r^3 and the coupled evanescent power falls off as 1/r^6. For the propagating field, the strength of the magnetic field falls off as 1/r in free space and the coupled power falls off as 1/r^2. In cluttered environments, the propagating field falls off more quickly. The insertion loss of the coils is proportional to the loaded Q to unloaded Q ratio.
On Wed, Jul 20, 2016 at 8:55 AM, David Roberson <dlrober...@aol.com> wrote: > Robin, > > It is my experience that the coupling falls off as 1/r to the third power > at large distances. > > Dave > > > -----Original Message----- > From: mixent <mix...@bigpond.com> > To: vortex-l <vortex-l@eskimo.com> > Sent: Wed, Jul 20, 2016 12:04 am > Subject: Re: [Vo]:The principle of the mutual energy > >For example in my past self resonant coil experiments very efficient > energy > >transfer between two air coils at a distance does not fit to magnetic > coupling > >working for transformers, nor to standard electromagnetic wave > transmission > >despite of presence of substantial electric and magnetic fields. These > fields > >are now known as evanescent waves. May the coupling through evanescent > waves > >have a similarity with the handshake described on this paper. > >OTH, I think self resonant coils (Tesla coils) could not be substituted > by a LC > >tank. Coils can resonate in multiple frequencies at the same time and may > cause > >some odd effects depending to waveshape and to geometry. > >BTW, Imrecons appears specialized in computer tomography. > >http://arxiv.org/abs/1606.08710 > > It is also well known that the energy transfer between resonant air coils > drops > off as 1/R rather than 1/R^2. That's why I think it's possible that many so > called free energy experiments actually make use of resonance with the > protons > in the inner Van Allen belt. The resonance wavelength may be about the > same as > the altitude of the inner Van Allen belt for some protons. > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > >
