RE: Mutual Inductance and Coupling Measurement

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: RE: Mutual Inductance and Coupling Measurement
From: Tesla List <tesla-at-stic-dot-net>
Date: Sat, 9 Aug 1997 20:26:20 -0500
Approved: tesla-at-stic-dot-net


From: 	Edward V. Phillips[SMTP:ed-at-alumni.caltech.edu]
Sent: 	Saturday, August 09, 1997 11:23 AM
To: 	tesla-at-pupman-dot-com
Subject: 	Re: Mutual Inductance and Coupling Measurement

"I wonder though if the coupling between the pri and sec at 60Hz is
the same as at 60kHz?  Could the reactive currents in the secondary
at resonance shape the magnetic field in a different way?"
	Can't imagine any significant frequency dependence, provided
you don't have a lot of capacitive coupling.  Skin effect might
make a very small difference, but at the loaded Q's we are working
with it is way down in the noise level.
	Didn't think of driving the secondary direct from the line,
but that sounds like an easier way!
Ed