| 摘要 |
The invention relates to a device which makes it possible to transmit a movement between two parts without the intervention of a physical link. It consists of a cylindrical magnetic piston (1) inserted into a non-magnetic guide tube (2). An annular magnet (3) or an electromagnetic coil can be slipped over the outside of the guide. The device according to the invention is particularly intended to be used for carrying out physics experiments. <IMAGE>
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