| 摘要 |
The invention relates to a sensor system for a magnetic bearing, comprising two actuator coils (1, 2), two clocked power output stages (4, 5), a current sensor (3) for detecting those currents in the actuator coils (1, 2) which are encumbered with a ripple current, and a sensor interface (6), wherein the clocked power output stages (3, 4) provide a pulse-width-modulated output voltage, the pulse width of which is narrowed or widened by small amounts in each case in a predefined order, and wherein the pulse widths of the clocked power output stages (3, 4) are modulated in a fixed phase relationship with respect to one another. The sensor system mentioned achieves the object of specifying a sensor system for a magnetic bearing with a clocked power output stage. The invention also relates to a magnetic bearing, to a control device for a magnetic bearing and to a method for detecting the position in a magnetic bearing. |
