The invention relates to a device (9) for generating a measurement signal (19) that is dependent on a torque (13) exerted on a torsion shaft (10) around a rotation axis (8) comprising: a magnet ring (16) fixed to a first axial position of the torsion shaft (10) and having a predefined number of magnet poles (28, 29) for generating a magnetic field (17), characterized by a magnet sensor (18) that is fixed to a second axial position of the torsion shaft (10) different from the first axial position and that includes a first sensor element (33) located in a radial plane (36) around the rotation axis (8) and outputting a first sensor signal dependent on the magnetic field (17) arriving the first sensor element (33), and a second sensor element (34, 38) located in the radial plane (36) of the first sensor element (33) but spaced from the first sensor element (33) with a distance (35) that is smaller that a cirumferencial extension of two neighboring magnet poles and outputting a second sensor signal dependent on the magnetic field (17) arriving the second sensor

An assembly includes at least three strain gauges and is attached to an elastic transmission element of a strain wave gearing. The assembly is designed to measure a torque acting on the elastic transmission element. Output signals from each of the strain gauges are measured. The output signal of one of the strain gauges is predicted from the measured output signals of the other strain gauges. An error message is output based on the predicted output signal deviating from the respective measured output signal by more than a predetermined tolerance.

Aspects of the present disclosure relate to a multiple range load cell capable of automatically switching measuring range and method for operating the multiple range load cell.

A method of verifying torque measurements of a reaction torque transducer of an instrument drive unit includes a controller receiving a verification signal, generating an acceptable range of torques, receiving a torque signal, comparing the torque signal to the acceptable range of torques, and stopping a motor if the torque applied by the motor is outside of the acceptable range of torques. The verification signal is indicative of the current drawn by the motor and the torque signal is indicative of torque applied by the motor.

A detection device includes: a plurality of sensors configured to detect a value to be detected; and a processing section configured to process a detection signal output from each of the plurality of sensors. A periodicity with which one or some of the plurality of sensors output detection signals is shorter than a periodicity with which others of the plurality of sensors output detection signals.

A torque measurement system determines torque on a shaft by monitoring angular deflection of the shaft under load using phase shift measurements. Calibration of the system uses a defined offset that is determined using a reference operating condition. The offset calibration value is determined for a rotorcraft using the following steps: defining a reference operational condition in which the shaft is rotating, estimating the torque at the reference condition based on aerodynamic knowledge of the rotors coupled to the shaft, operating the shaft at the reference operational condition, capturing sensor data to determine the phase difference at the operational condition, and associating the phase difference and an estimated torque as a calibration value to enable calculation of torque in the torque measurement system.

A simulation device for the screw joint simulation of a nutrunner includes a test connecting element rigidly connected to a brake unit. The nutrunner can be coupled to the test connecting element and activated to exert a torque that rotates the test connecting element about an axis of rotation. Activation of the brake unit brakes the test connecting element. A torque transducer includes a rotational angle transducer for measuring a rotational angle by which the test connecting element rotates about the rotation axis. The simulation device includes a zero mark, and the brake unit can be adjusted to a zero angle with respect to the zero mark.

A drive bearing includes an element rotatably mounted and which comprises magnetized magnetostrictive material. A torque can be applied to the element and the magnetostrictive magnetized material is formed to generate at a first position outside the element a magnetic field as a function of the torque applied. A measuring circuit comprises a first magnetic field sensor for detecting a total magnetic field at the first position, the total magnetic field comprising the magnetic field generated by the magnetostrictive magnetized material and an external magnetic field. The first magnetic field sensor outputs a first signal as a function of the total magnetic field detected. A second magnetic field sensor detects the external magnetic field at a second position and outputs a second signal as a function of the external magnetic field detected. The measuring circuit determines a value of the torque applied using the first and the second signals.

A simulation device for the screw joint simulation of a nutrunner includes a test connecting element rigidly connected to a brake unit. The nutrunner can be coupled to the test connecting element and activated to exert a torque that rotates the test connecting element about an axis of rotation. Activation of the brake unit brakes the test connecting element. A torque transducer includes a rotational angle transducer for measuring a rotational angle by which the test connecting element rotates about the rotation axis. The simulation device includes a zero mark, and the brake unit can be adjusted to a zero angle with respect to the zero mark.

A surgical robotic system includes a plurality of magneto sensors for measuring a torque, axial force, angle, position, or speed of various driven members in the surgical robotic system.