| 摘要 |
<p>The invention relates to a method for operating a capacitive position sensor, the capacitive position sensor comprising a stator, the stator comprising a transmitter and a receiver, the transmitter comprising N sets of conductive elements, each set comprising n conductive elements, the conductive elements of the transmitter formed in a linear or circular arrangement thereon, the receiver comprising a conductive plate formed thereon, a rotor, the rotor comprising a linear or circumferential modulated geometry, the stator and the rotor being arranged parallel to each other and being rotatable independently, the method comprising the step of providing excitation signals driving each conductive element, the excitation signals being periodic in 2À, each set of conductive elements being provided with n different excitation signals, the different excitation signals differing in phase, wherein in a functionality check mode the excitation signal that in a measurement mode is applied to one of the conductive elements in the functionality check mode is applied to a different one of the conductive elements, the different conductive element being the k-th conductive element counted from the one of the conductive elements, k being an integer of 1 to n-1 and this shift of excitation signals being applied to all conductive elements.</p> |
