Newsgroups: comp.robotics
Path: brunix!news.Brown.EDU!qt.cs.utexas.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!howland.reston.ans.net!usenet.ins.cwru.edu!agate!rsoft!mindlink!a4482
From: Jeff_Holinski@mindlink.bc.ca (Jeff Holinski)
Subject: Re: A sense of balance
Organization: MIND LINK! - British Columbia, Canada
Date: Mon, 1 Feb 1993 20:42:13 GMT
Message-ID: <20400@mindlink.bc.ca>
Sender: news@deep.rsoft.bc.ca (Usenet)
Lines: 16


If you want to go with the 'bubble in a ring' idea here's an easy way to make
one: Get some .5" plexiglass and a hole saw. Use the saw to cut a groove in
the plexiglass. Fill it with liquid and clamp another piece of plexiglass to
it.

If you can't get the liquid to work with optical sensors you might try using
a drop of mercury and speaker wire. You carve the groove in the plexiglass,
lay strands of speaker wire from the groove to outside the block of
plexiglass. Put a drop of mercury into the groove and coat another piece of
plexiglass with epoxy and clamp the 2 pieces together. The epoxy will seal
the unit and hold the wires in place and the mercury will make a connection
between ajacent pieces of wire. Use enough strands of wire and you can make a
pretty sensitive unit.


