Coils

[Winston]

(...)


Grin... sure but it costs a bit more than an encoder wheel.

That's reasonable!

Each count is 1/8th of the wavelength, less than 100nm... does that
count as nanotech? :^)
What I hadn't known about the quadrature technique is that the (phase)
noise stays all on the 'rim' of the circle. I guess that's 'obvious'
in retrospect.

I'll take your word for it.

--Winston