A measuring device for process automation in an industrial environment is provided, the measuring device including: a first sensor device configured to detect a process variable; a position detection device configured to detect a position of the measuring device; a second sensor device configured to acquire environmental data; and a controller configured to analyze the acquired environmental data, determine, based on the analysis, whether or not a current position of the measuring device should be detected, and instruct the position detection device to detect the current position of the measuring device when the analysis of the environmental data has determined that the current position should be detected. A method for determining a position of a measuring device is also provided.

A torque sensor includes a disk comprising a magnetostrictive, magnetically biased, or magnetizable material, and a magnetic field sensor assembly. A torque acting about an axis of rotation of the disk can be applied to the disk and the magnetostrictive material is configured to generate a magnetic field outside the disk that changes dependent on the effective torque. The magnetic field sensor assembly is configured to output a signal based on the magnetic field generated by the magnetostrictive material, and the torque sensor is configured to determine a value of the acting torque based on the signal that is output.

Disclosed is a power-output wireless torque detection mechanism, which includes an input assembly and an output assembly that is driven by the input assembly separately mounted on a fixed body. A wireless detection device is arranged between the input assembly and the output assembly, so that the wireless detection device is operable to detect a rotating torque value and a rotating speed value that are transmittable in a wireless manner. As such, a modularized arrangement is formed, which exhibits bettered universality and enhances accuracy of torque detection and also improves stabilization and correctness of signal transmission to allow a subsequent input of an assisting power to be conducted in a more timely and more accurate manner and to achieve an effect of easy assembling and servicing, and also to reduce an overall cost.

A device (10) for monitoring strain of an elongate member (12) is deployed underwater. The device (10) comprises a first clamp (14) configured to embrace and couple to the elongate member (12) at a first axial location, a second clamp (16) configured to embrace and couple to the elongate member at a second axial location separated from the first axial location, and a sensor which is responsive to an angle between the first clamp and the second clamp.

An optical cable (31) includes: a stress wave detection optical cable (30) having an optical fiber (7) and a plurality of first steel wires (8) which are helically wound so as to surround the optical fiber (7) and which are surrounded by a flexible material (9); and second steel wires (32) different from the first steel wires (8). The stress wave detection optical cable (30) and the plurality of second steel wires (32) are helically wound to form one annular body as a whole, and a winding angle (α) of the stress wave detection optical cable (30) with respect to the axis is determined by a property value prescribed by Lamé constants of the flexible material (9).

Systems and methods are presented for cancelling noise from sensed magnetostriction-based strain measurements. A drive signal corresponds to a drive coil, and a sensed signal corresponds to a sensed coil. The drive signal is used to at least partially eliminate noise similar to the drive signal from the sensed signal to generate an output signal.

A torque detector includes a torque cam, a pulse gear, a rotation pulse detection member, and a torque acquisition member. The torque cam is disposed on a rotating shaft and capable of moving in an axial direction of the rotating shaft according to torque input to the rotating shaft. The pulse gear includes a tooth formed on an outer circumferential surface of the torque cam. The rotation pulse detection member disposed so as to oppose the pulse gear is configured to detect the tooth of the pulse gear in rotation and to output a pulse train. The torque acquisition member is configured to acquire the torque from the pulse train. The tooth extends in the axial direction and a tooth thickness becomes continuously larger or smaller from a first side to a second side in the axial direction.

A relative rotational angular displacement detection device includes a pair of rotatable members rotatable relative to each other in a circumferential direction. A permanent magnet is attached to one of the rotatable members and includes magnetic poles magnetized in an axial direction of the axis of rotation and arranged to alternate in polarity in the circumferential direction. A magnetic flux guiding ring includes an annular ring body attached to the other of the rotatable members and is arranged coaxially with the axis of rotation, and a plurality of protruding portions each having a circumferential width smaller than the circumferential width of the magnetic pole. A magnetic detection unit is configured to detect magnetic fluxes of the ring body of the magnetic flux guiding ring. The magnetic flux guiding ring is magnetized depending on the positions of the protruding portions relative to the positions of the magnetic poles.

A resistance apparatus for exercise equipment includes a resistance adjusting unit and a sensor unit. The resistance adjusting unit includes an adjusting member, a tubular sleeve located above the adjusting member, an adjusting shaft disposed in the tubular sleeve. A first threaded nut is pivotally mounted to the adjusting member and threadedly connected to the adjusting shaft. The sensor unit has a moveable member, a second threaded nut, a first sensing member and a second sending member. One end of the moveable member is pivotally mounted to the adjusting Member. The second threaded nut is threadedly connected to the adjusting shaft and moveable member. The sensing members are disposed on the other end of the adjusting member and the moveable member, respectively. Thereby, a distance between the sensor and the sensing member is changed with respect to the corresponding movements of the first and second threaded nuts on the adjusting member and the moveable member for generating corresponding sensing signals.

The present disclosure is directed to a shaft assembly (95) for a turbine engine (10), the shaft assembly (95) defining an axial direction and a radial direction, wherein the turbine engine (10) includes a fan or propeller assembly (14) and an engine core (20) and further wherein the fan or propeller assembly (14) includes a gearbox (45). The shaft (assembly 95) includes a coupling shaft (100) defining a plurality of coupling shaft teeth (105) extended in the axial direction, wherein each coupling shaft tooth (105) is in circumferential arrangement along the coupling shaft (100). The coupling shaft (100) includes a first material (103) and the plurality of coupling shaft teeth (105) include a second material (104) different from the first material (103).