| 摘要 |
<p>The device for generation of vibrations comprises an external casing (1) provided with means of connection (101) to a support structure (100) and at least one mobile internal mass (2) housed in the casing. The device is also provided with magnetic means of guidance (3a-d,5a-d,8a-d) of the mobile internal mass with respect to the casing; means (11) of establishing the position and/or the motion of the same mobile mass with respect to the casing, and means of automatic control of the magnetic means of guidance. Furthermore, the mobile internal mass comprises at least one magnetically active element.</p> |
