DEVICE AND METHOD FOR MEASURING A ROTOR PARAMETER

摘要

The invention relates to a device for measuring a rotor parameter, including: an incremental material measure, which is connected to a rotor or stator in a rotationally fixed manner and which has increment marks, an increment-measure sensor, which is arranged facing the incremental material measure and which is arranged on the stator if the incremental material measure is connected to the rotor in a rotationally fixed manner and which is arranged on the rotor if the incremental material measure is connected to the stator in a rotationally fixed manner, and an evaluating unit. The device has a timer, which is reset and restarted each time an increment mark passes by the increment-measure sensor. In dependence on a value of the timer, the evaluating unit determines the rotor parameter for an intermediate rotational position of the rotor lying between two rotational positions of the rotor that correspond to two adjacent increment marks that the rotor passes by in succession. The invention further relates to a method for measuring a rotor parameter and to a method for reducing rotational differences of a rotor.

主权项

1. A device for measuring a rotor parameter or a plurality of rotor parameters, comprising:
an incremental material measure, which is connected to a rotor or stator in a rotationally fixed manner and which has increment marks, an increment-measure sensor that is disposed opposite the incremental material measure, and that is disposed on the stator for the incremental material measure being connected to the rotor in a rotationally fixed manner, and that is disposed on the rotor for the incremental material measure being connected to the stator in a rotationally fixed manner, and an evaluating unit, a time-measuring instrument, which is set up to be reset and restarted subsequent to each passage of an increment mark, and the evaluating unit configured to determine, in dependence on a value from the time-measuring instrument, the rotor parameter for an intermediate rotational position of the rotor that lies between a first rotational position and a second rotational position, wherein the rotor has the first rotational position at a first instant of a passage of a first increment mark and the rotor has the second rotational position at a second instant of a passage of a second increment mark that is adjacent to the first increment mark.