INDUCTIVE DETECTION OF A ROTATIONAL ANGLE
A sensor arrangement for detecting a rotational angle of a flux element on a circular path about a rotational axis contains coil groups having flat coils in the same rotational angle region on a plane concentric with the rotational axis in parallel with the circular path, the inductance of the flat...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A sensor arrangement for detecting a rotational angle of a flux element on a circular path about a rotational axis contains coil groups having flat coils in the same rotational angle region on a plane concentric with the rotational axis in parallel with the circular path, the inductance of the flat coils being dependent on the rotational angle of the flux element. An evaluation device evaluates the inductance and individual rotational angle of the flux element for each flat coil and the rotational angle from at least two matching individual rotational angles. In an electric machine, the flux element is coupled to the rotor and the coil groups are coupled to the stator, or vice versa. A corresponding method is also disclosed. |
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