John Popelish wrote:

Cecil Moore wrote:
Exactly! Therefore, [standing wave phase] cannot be used to measure the phase shift
through a coil or even through a wire.

I agree, unless you use phase measurement to hunt for the location of
the current nodes that have moved as a result of adding the coil.
Finding a phase reversal at opposite ends of the coil, for instance,
implies that an odd number of nodes reside in the coil.

John, I didn't say the amplitude couldn't be used to determine
phase. The current nodes are associated wiht amplitudes, not phase.

A phasor rotates at the reference frequency, and with a phase angle that
represents the angular difference between the value in question and the
reference cycle. Pick a point on the conductor, and if it carries
either a standing or traveling wave (or any combination of traveling
waves at the reference frequency), the current at that point is
describable as a phasor (having a specific magnitude, and a specific
phase with respect to the reference cycle).

Yes, but the standing wave phasor doesn't change phase with position.
The traveling wave phasors change phase with position. That's a big
difference.

No. Currents do not travel. Current is the movement of charge past a
point.

So current doesn't flow and all the references to "current flow" are
wrong? If so, your task is a lot bigger than mine. May I suggest a
new thread titled, "Current Doesn't Flow".
--
73, Cecil http://www.qsl.net/w5dxp