Shock Sensor Question

[Phil Hunter]

If the problem were mine, I'd take a close look at
slide pots first, I'll bet they'll work fine. I'd
get a handful of different ones, linear not the
logarithmic (sp) audio kind like might be used in a
graphic equalizer, grab a variable speed drill, make
an eccentric, use a piece of stiff wire for a
connecting rod, and start cycling the pot like a
piston in an engine. Use an o'scope or datalogger to
see the signal, increasing the drill speed until my
nice sine wave has a problem like noise from the
slider chattering or some such. Math out the linear
speed of the slider. If this test's results look
promising, then I'd put it on a street car for more
real world test, my mental picture is the pot held to
the shock barrel w/ hose clamps, a wire or spring
from the slider to the other half of the shock, held
w/ a third hose clamp. Assuming things still look
good, then figure out how to do the race car, if not,
then pursue some of the other more expensive and
complex suggestions.

regards,
phil
(digest)

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