Patent ID: 11940342
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The torque sensor of claim 1, wherein the stator circuitry is configured to calculate the torsion angle (delta′) by:
calculating a rotational position phi1′ of the first target coil with respect to the first pickup coil system based upon the signals induced in the two first pickup coils;
calculating a rotational position phi2′ of the second target coil with respect to the second pickup coil system based upon the signals induced in the two second pickup coils; and
iteratively evaluating the equation:

delta′=(phi1′/k1)−(phi2′/k2)+(360°*(m1/k1−m2/k2)),

for each of a combination of different integer values of (0≤m1≤k1−1) and (0≤m2≤k2) to identify the torsion angle delta′ using the set of integer values m1, m2 that yield the smallest absolute value for delta′,
wherein k1 represents the k-fold rotational symmetry of the first target coil having a first periodicity, and
wherein k2 represents the k-fold rotational symmetry of the second target coil having a second periodicity.