I have tried an additional test to rule out false positives and it seems to have passed. I made a coil of thin wire in the bucking bifilar form, and fed it from the signal generator. Only at high frequencies did any magnetic induction seem to occur, sometimes a capacitive induction occurred, but I didn't find a wideband magnetic induction as with the asymetric bucking bifilar.
On Mon, Oct 8, 2012 at 10:49 AM, John Berry <[email protected]> wrote: > As the drift velocity concept made perfect sense and also created null > results where one would think effects might have been seen. > And since it also can be confirmed based on homopolar generators and other > experiments I decided to go further with it. > > Could it impact time varying induction? > > Could a coil made of one thin and one thick strand, wound together and > connected so as to produce zero net magnetic field still create a net > induction due to the different drift velocities? > > I realized it was plausible, but I lacked the skill to do a decent > analysis and I am unsure if anyone could, so I tried it, I got an extremely > thin magnet wire (it was salvaged from the stator of a shaded pole fan > motor from a microwave oven) and a very thick multi strand wire that can > take serious amps, I connected the ends of each together and then wound > this bucking bifilar coil on a cardboard tube, perhaps 30 turns. > > I then connected the thin and thick wires to my signal generator, and > attached a handy air core coil I had lying around to my oscilloscope. > Sure enough I got a signal! > > I thought it could just be electrostatic, but if I rotate the coil 90 > degrees the transformer action disappears! Even if and capacitive coupling > is enhanced. > > So it isn't capacitive, it is actual inductive coupling from a > non-inductive coil to an inductive coil! > > I thought that maybe the input waveform was passing through one wire and > being reflected at the transition, however the signal input is connected to > the thin and the ground is connected to the thick wire which makes a > reflection less likely, furthermore I lowered the input frequency down to > 1.5khz and it still worked! > > Therefore at this point I am reasonably sure that both wires > are receiving approximately equal current. > > The only thing left to test really is what the level of induction compares > to if a simple coil was to replace this one, if it turns out that at least > 5 or 10 turns or more are required to match the inductive abilities of this > coil then that would in my mind further indicate that the rectification is > due to different drift velocities! > > This experiment has now taken longer to write about than assemble > and perform! > > I encourage others who have appropriate equipment to give this one a shot. > There is not guarantee but this could have an OU implication as this coil > appears to create an inductive field, but would not receive induction, or > would it? > > John > >
