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Message
Why not a simple (regular rotational) potentiometer. Put a
disk on the shaft that is the circumference of the max travel that you need,
wrap a string around the disk, attached at each end to the manifold parts, and
then movement of the manifold will cause the shaft of the pot to rotate,
and the rotation will be constrained to less than 1 revolution.
Bill Schertz
You can also
get 10 turn pots if that makes the geometry easier. Maybe you could even
put a little rubber wheel on it, and let it roll on the stationary portion of
the manifold.
Rusty
(someone please smack Kevin for that Argon joke
:-)
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