On Thu, 27 Nov 2014 18:14:07 -0500, Martin Riddle
wrote:
On Thu, 27 Nov 2014 11:20:38 -0700, Jim Thompson
wrote:
On Sun, 12 Oct 2014 12:45:29 -0700, Jim Thompson
wrote:
I need a SWAG on this, just to see if it's feasible...
Two inductors (solenoids) with Ferrite cores, each ~5mm in diameter
and separated by ~5mm spacing.
What coupling coefficient might I expect?
(Essentially no load on the "receiving" inductor except natural
losses... and I could tune or not.)
...Jim Thompson
Customer built a PCB and is getting good data coupling out to 2"
spacing.
Both ends are tuned with Q~10, so I'm going to cut it back a bit, I
fear cross-talk issues when he implements multi-channels.
...Jim Thompson
Can he put alternate channels on the opposite side of the board?
Or maybe a EMI shielding enclosure, might cause a change in the
inductance of the coil a bit.
Cheers
Customer has 1' PCB panels... Single inputs on N and W sides, outputs
on E and S sides.
...Jim Thompson
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