A measuring device includes first and second component groups rotatable about an axis relative to each other. The first component group has a scanning component, having a first substrate, and the second component group has a scale component, having a second substrate and an angle scale. The measuring device can determine a relative angular position between the component groups. The measuring device has a passive sensor array having conductor track structures. The conductor track structures are applied on the first substrate by an additive process so that the sensor array determines a torsional load of the first substrate about the axis. Alternatively, the conductor track structures are applied on the second substrate by an additive process so that the sensor array determines a torsional load of the second substrate about the axis.

A measuring device includes first and second component groups rotatable about an axis relative to each other. The first component group has a scanning component, having a first substrate, and the second component group has a scale component, having a second substrate and an angle scale. The measuring device can determine a relative angular position between the component groups. The measuring device has a passive sensor array having conductor track structures. The conductor track structures are applied on the first substrate by an additive process so that the sensor array determines a torsional load of the first substrate about the axis. Alternatively, the conductor track structures are applied on the second substrate by an additive process so that the sensor array determines a torsional load of the second substrate about the axis.

A device for a valve actuator directed to measuring torque through linear displacement of a driving member is provided. The device comprises a valve actuator that includes an actuator motor and a driving member having a first end and a second end. A screw is coupled to the driving member and positioned between the first end and the second end. A gear configured to engage against the screw is positioned adjacent to the driving member. A spring element having a known constant is coupled to the second end of the driving member. The device further includes a linear potentiometer or a microswitch, and a method for measuring torque using the provided linear potentiometer or microswitch.