| 摘要 |
<p>The transport surface (a, b, c, d) is associated with eight transducers acting by pairs at each of its corners along two orthogonal directions (ax, ay, bx, by, cx, cy, and dx, dy). These transducers are controlled as a function of the desired motion according to two degrees of freedom (x, y) and angular rotation about an axis (O) perpendicular to said surface. The surface is subjected by means of the transducers to vibrations within its plane, selectively along two orthogonal directions and two angular directions and according to a periodic asymetrical acceleration law, exceeding the static friction threshold of said object on said surface, in order to create a controlled sliding motion by virtue of the non-linear friction coefficient between said object and said surface.</p> |
