| 摘要 |
<p>The device has a frame (2) in which a container (4) is arranged for receiving a liquid medium. The container is sectioned and is provided with an electrically conductive material. A magnetic field generating induction unit (6) is provided with an opening (22) and is arranged on a support portion outside of the container, such that the outer wall (4a) of the container is subjected to a magnetic field. The induction unit is arranged at preset distance from the outer wall, by which an air gap is formed between induction unit and outer wall.</p> |
