This is a rough and ready video of some aspects of my homemade shock dyno. A device for measuring the damping characteristics of motorcycle shock absorbers.
The differences in the data between using a position sensor and an LVT (Linear Velocity Transducer) for position and velocity data is highlighted. Unfortunately the sound is not good. It disappears in some places. The following links cover this aspect in clearer detail.
https://www.homemadetools.net/forum/something-completely-different-83989#post175969
and a couple of videos
https://www.youtube.com/watch?v=s0aUpGoeBIA
https://www.youtube.com/watch?v=NCvKRgbF1uA
