| 摘要 |
The invention relates to a method and a device, whereby a galvanometer actuator (7) that is connected to the element and a control unit are provided. Said unit generates a control signal for the actuator for adjusting the element according to a desired position time history that can be freely predetermined, whereby the control unit detects the control signal by means of the desired position time history and by considering a model (4) consisting of the unit of the actuator and the element. Said model is a time discrete state space model and is selected in such a way that said model can predict the position time history of the element for a time history of the control signal and with predetermined exactness, whereby said time history of the control signal can be freely predetermined. The predetermined desired position time history is verified by the control unit and by means of a preliminary filter and is modified with regard to the feasibility thereof if required. A position sensor is provided which generates a position signal according to the position of the element and supplies said signal to the control unit that considers said position signal during detection of the control signal. Detection of the control signal by means of the model is only carried out at predetermined control times of the desired position time history. The value of the control signal is detected at a control time by requesting that the summed-up, weighted difference between the desired position and the position predicted by the model becomes minimal for the next control times for said value of the control signal. The thus detected value of the control signal is applied at least until the next control time.
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