You should be able to find accelerometers much cheaper than $500! We buy a
module that includes a 3-axis accelerometer and a DSP, and I think it's only
about $30 in quantity. A quick Google turned up a sensor mounted on a PC
board for $30, and an assembled packaged unit with display, etc for $100.
http://www.amazon.com/T-Matrix-3-Axis-Performance-Accelerometer/dp/B000KZRE5
E
I've been fighting somewhat the same problem with my TR3, except the
vibration also comes back at higher speeds. So far, I have found brand new
brake rotors that were significantly out of balance out of the box, and hubs
that did not run true.
http://tinyurl.com/3eql5af
I hope my "magic bullet" will be an on-the-car wheel balancer that I bought,
but haven't had time to try out yet.
-- Randall
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