| 摘要 |
A length separator comprising at least one rotational member, e.g. a disc or a cylinder, having cells for lifting seeds and other particles from a lower position to a higher position, and a trough for receiving the lifted material. The rotatable member is associated with at least one sensor located in the flow of the lifted material supplied to the trough, for generating an electric signal in dependence on impingement of material particles leaving the rotatable member and falling down into the trough. The sensor is operatively connected through an electronic function unit to adjusting means for controlling the flow of material to be cleaned which is supplied to the separator, in dependence on the impingement intensity. |
