You could use a stepper motor as an encoder. Tough as nails, and no need
for an end stop. And if you drive it right, you can use it for force
feedback.

Josh
--
A common mistake that people make when trying to design something
completely foolproof is to underestimate the ingenuity of complete
fools.
        -Douglas Adams


llile@SALTONUSA.COM wrote:
> Now I have worried a little about what kind of sensor to sense the
> position of my underseat handlebars with.  The handlebars themselves will
> be a conventional carbon fiber straight handlebar in a conventional
> gooseneck bearing welded onto the frame.  You need lots of strength in a
> handlebar because the rider pulls on the bars to oppose the legs.  The
> sensor has to accept getting wet, and either has to accept 360 rotation or
> be arranged with a heavy duty end-stop  since you have a 40 cm lever to
> haul on it with.  I can't imagine the end-stop torque on a conventional
> pot being good enough.  Rotation at least 180 degrees is essential.   Is
> there a waterproof pot that would fill the bill?

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