Sensor arrangement and electric machine

A sensor arrangement for determining an angular position of a rotatable component comprising:

• a first annular sensor target including a plurality of teeth and grooves distributed in an alternating manner along the circumference of the first annular sensor target;
• a first inductive sensor arranged at a distance axially from the first sensor target, wherein the first annular sensor target and the first inductive sensor are rotatable in relation to one another about a common axis of rotation,
• wherein the first inductive sensor includes a first coil and a second coil, wherein the first coil and the second coil extend in a radial plane in relation to the axis of rotation,
• wherein the first coil follows a sinusoidal path along a circular circumference and the second coil follows a path phase-offset relative to the sinusoidal path of the first coil along the circular circumference,
• wherein the first inductive sensor comprises an energizable third coil, wherein the energizable third coil is radially offset inside the first coil and the second coil.

An electric machine of an electrical drive train comprising:

• a stator;
• a rotor rotatable relative to the stator;
• and
• a sensor arrangement configured to determine the angular position of the rotor, wherein the sensor arrangement comprises:
• a first annular sensor target including a plurality of teeth and grooves distributed in an alternating manner along the circumference of the first annular sensor target;
• and
• a first inductive sensor arranged at a distance axially from the first sensor target, wherein the first annular sensor target and the first inductive sensor are rotatable in relation to one another about a common axis of rotation,
• wherein the first inductive sensor includes a first coil and a second coil, wherein the first coil and the second coil extend in a radial plane in relation to the axis of rotation,
• wherein the first coil follows a sinusoidal path along a circular circumference and the second coil follows a path phase-offset relative to the sinusoidal path of the first coil along the circular circumference,
• wherein the first inductive sensor comprises an energizable third coil, wherein the energizable third coil is radially offset inside the first coil and the second coil.