Angle sensor device
A position-torque sensor system includes two angle sensors configured to detect a rotational movement. Each of the two angle sensors includes a rotor and a stator. The rotor is rotatable in response to the rotational movement to provide a rotor rotational movement and is rotatable relative to the stator. The stator includes an excitation coil and a set of receiving coils that generate output signals indicative of the rotor rotational movement. The sets of receiving coils of the stators of the two angle sensors are structurally same and the rotors of the two angle sensors are structurally the same.
1. A position-torque sensor system comprising:
two angle sensors, wherein each of the two angle sensors is configured to detect a rotational movement and each of the two angle sensors is aligned on an axis of the rotational movement, wherein each of the two angle sensors comprises:
a rotor rotatable in response to the rotational movement to provide a rotor rotational movement; and
a stator that comprises an excitation coil and a set of receiving coils, wherein:
the rotor is rotatable relative to the stator,
the set of receiving coils generate output signals indicative of the rotor rotational movement, wherein the output signals are based on an inductive coupling of the excitation coil and the set of receiving coils, and wherein the inductive coupling traverses an axial distance in parallel with the axis, and
the sets of receiving coils of the stators of the two angle sensors are structurally the same and the rotors of the two angle sensors are structurally the same.
2. The position-torque sensor system of claim 1 further comprising:
a sensor controller electrically coupled to the two angle sensors, wherein:
the sensor controller is configured to receive the output signals from the set of receiving coils, and
for each of the angle sensors, the sensor controller is configured to determine an angular position of the rotor rotational movement based on the output signals from the set of receiving coils of the angle sensor.
3. The position-torque sensor system of claim 2 , wherein the sensor controller is further configured to provide an input voltage to the excitation coils of the two angle sensors.
4. The position-torque sensor system of claim 3 , wherein the input voltage is a periodic voltage.
5. The position-torque sensor system of claim 2 , wherein the sensor controller is further configured to determine a torque of the rotor rotational movement based on a displacement position between the angular positions of the rotor rotational movement.
6. The position-torque sensor system of claim 1 , wherein the set of receiving coils comprises at least two coils, and wherein the axial distance is bounded by the rotor and the stator.
7. The position-torque sensor system of claim 1 , wherein the stators of the two angle sensors are provided on one or more circuit boards.
8. The position-torque sensor system of claim 1 further comprising an electromagnetic barrier provided between the two angle sensors.
9. A position-torque sensor system comprising:
two angle sensors, wherein each of the two angle sensors is configured to detect a rotational movement, wherein each of the two angle sensors comprises:
a rotor rotatable in response to the rotational movement to provide a rotor rotational movement; and
a stator that comprises an excitation coil and a set of receiving coils configured to have sinusoidal windings, the sinusoidal windings comprising at least two windings with a fixed phase or a position shift to each other, wherein:
the rotor is rotatable relative to the stator and a maximum outer diameter of the rotor is greater than a minimum inner diameter of the sinusoidal windings,
the set of receiving coils generate output signals indicative of the rotor rotational movement, and
the sets of receiving coils of the stators of the two angle sensors are structurally the same and the rotors of the two angle sensors are structurally the same.
10. The position-torque sensor system of claim 9 , wherein a sensor controller electrically coupled to the two angle sensors is configured to determine, for each of the angle sensors, an angular position of the rotor rotational movement, as a characteristic of the rotor rotational movement, based on the output signals from the set of receiving coils for the angle sensor.
11. The position-torque sensor system of claim 10 , wherein the sensor controller is further configured to determine a torque of the rotor rotational movement, as the characteristic, based on a displacement position between the angular positions of the rotor rotational movement.
12. The position-torque sensor system of claim 10 , wherein the sensor controller is electrically coupled to the excitation coil of each of the two angle sensors to provide an input voltage signal to the excitation coils, wherein the input voltage is a periodic voltage.
13. The position-torque sensor system of claim 9 , wherein the sinusoidal windings comprises a first sinusoidal winding and a second sinusoidal winding, and wherein the first sinusoidal winding comprises a first phase with respect to an origin and the second sinusoidal winding comprises a second phase with respect to the origin, and further wherein an intersection of the first sinusoidal winding and the second sinusoidal winding is based on the first phase and the second phase.
14. The position-torque sensor system of claim 9 , wherein the stators of the two angle sensors are provided on one or more circuit boards.
15. The position-torque sensor system of claim 9 further comprising an electromagnetic barrier provided between the two angle sensors.
16. The position-torque sensor system of claim 9 , wherein the set of receiving coils of the stator comprises two or more coils.
17. A position-torque sensor system comprising:
two angle sensors, wherein each of the two angle sensors is configured to detect a rotational movement, wherein each of the two angle sensors includes comprises:
a rotor rotatable in response to the rotational movement to provide a rotor rotational movement; and
a stator that comprises an excitation coil and a set of receiving coils configured to have sinusoidal windings, the sinusoidal windings comprising at least two windings with a fixed phase or a position shift to each other, wherein:
the rotor is rotatable relative to the stator and a maximum outer diameter of the rotor is greater than a minimum inner diameter of the sinusoidal windings, and
the set of receiving coils generate output signals indicative of the rotor rotational movement; and
a sensor controller electrically coupled to the two angle sensors, wherein:
the stators of the two angle sensors are structurally the same and the rotors of the two angle sensors are structurally the same,
the sets of receiving coils of the stators of the two angle sensors are provided on one or more circuit boards, and
the sensor controller is configured to determine, for each of the angle sensors, an angular position of the rotor rotational movement based on the output signals from the set of receiving coils of the angle sensors.
18. The position-torque sensor system of claim 17 , wherein the sensor controller is further configured to determine a torque of the rotor rotational movement based on a displacement position between the angular positions.
19. The position-torque sensor system of claim 17 further comprising an electromagnetic barrier provided between the two angle sensors.
20. The position-torque sensor system of claim 17 , wherein a first output signal of the output signals is based on a first phase and a second output signal of the output signals is based on a second phase, and wherein the sinusoidal windings comprises a first sinusoidal winding and a second sinusoidal winding, and further wherein the first sinusoidal winding comprises a first phase with respect to an origin and the second sinusoidal winding comprises a second phase with respect to the origin, and further wherein an intersection of the first sinusoidal winding and the second sinusoidal winding is based on the first phase and the second phase.
21. The position-torque sensor system of claim 13 further comprising a sensor controller electrically coupled to the two angle sensors, wherein the sensor controller is configured to determine a characteristic of the rotor rotational movement based on the output signals, and wherein a first output signal of the output signals is based on the first phase and a second output signal of the output signals is based on the second phase.