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To test the integrity of all major components -- motors, signal generation hardware, shaker table, camera and vision system, we devised a simple experiment illustrated below:

The idea is for a single coin, initially placed at the center of the plate, to be steered along the branches of a plus sign (one roundtrip to the edge of the table and back) for each of the branches, in clockwise order.

MPEG-4 videos (Windows Media Player required) can be viewed in two parts by clicking on the images below.

Alternatively, snapshots of the video can be viewed as an animated GIF.


2000 Dan S. Reznik, <dreznik@cs.berkeley.edu>