AVR-Chat

Hi again,

There is this 3 meter long "stainless" hollow metal rod.
This is the kind of material used in hand railings and
barriers. A person might grasp anywhere along the length
of this rod.

The requirement is for an AVR to be able to detect if a human hand
is there or not(a 1 or 0 will do).

Was thinking of capacitance sensors, however, I havnt seen one
that uses a rod instead of a metal plate.

Anyone here encountered one? or is there a better way to do this
kind of sensing?

thanks

chris