A recent Silicon chip magazine had a really neat new "earthquake" detection system, using a cheap 3 axis accelerometer and arduino.
http://www.siliconchip.com.au/Issue/...h?res=nonflash
Might be fun to use something like that to "see" if you have ground vibrations to worry about.
It isnt fast enough to do vibration damping tests, but would certainly give an idea of low freq ground vibration.
Andrew
ed changed link to correct one