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Experiment - Displacement Current's Magnetic Fields
Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
Hi Antonio, Richard, Paul, All,
Going off Richard's original idea but correcting for obvious problems, I
would like to propose an experiment to test for magnetic fields caused by
displacement currents. I wrote up my notes and posted than at:
Forgive the "sketches", keyboards and carpel tunnel... Sister stole all
the artistics in the family...
Basically, it is a 6 inch diameter disk capacitor made from double sided PC
board material. All the conductors lie in a plane. A current sensing coil
is placed around it that only detects B-fields caused by displacement
currents and ignores those from the conducted currents (I could slit the
If the displacement currents create a B-field, then the current if the
Rogowski coil should be the same as measured by the external current
transformer. If there is no B-field, the current will be darn near zero...
The results should be (hope hope) "perfectly clear". The Rogowski coil
should have little effect on the E-field of the capacitor since it can be
space say an inch away.
A plain sight easily reproducible experiment that should be definitive.
Rogowski coils may seem kind of weird but they are basic
(http://www.rocoil.cwc-dot-net/page2a.htm). I thought this would be better
than fancy Pear$on CTs for others to reproduce.
I can't see any obvious problems but if there is some improvement or
terrible flaw I would appreciate knowing?? ?:-))
Any bets as to the results :o)) Personally, I have no idea as to what it
will be. I would think it will either be Maxwell's great "I told you so"
or them other guy's great "gotcha!" :-))