Abstract: A torque sensor device includes a circular body having an annular inner flange, an annular outer flange, and a circular intermediate portion between the annular inner flange and the annular outer flange. The annular inner flange is closer to a center of the circular body than the annular outer flange. The circular intermediate portion is a continuously solid portion.

Abstract: Aspects of the present disclosure relate to a piezoelectric device having at least one piezoelectric element, which has a support plane oriented to a force introduction element, wherein in the event of a thermal loading of the piezoelectric device in the support plane, expansion differences between the piezoelectric element and the force introduction element occur. To compensate for shear loadings, at least one transition element is arranged between the piezoelectric element and the force introduction element, the E-module of which is smaller than the E-module of the piezoelectric element in the support plane.

Abstract: An inductive sensor may include a first angle measurement path associated with determining an angular position based on a first set of input signals. The inductive sensor may include a second angle measurement path associated with determining an angular position based on a second set of input signals. The inductive sensor may include an amplitude regulation path associated with regulating amplitudes of a set of output signals. The inductive sensor may include a safety path associated with performing one or more safety checks. Each safety check of the one or more safety checks may be associated with at least one of the first angle measurement path, the second angle measurement path, or the amplitude regulation path.

Abstract: A sensor device comprising at least a first substrate, a capacitive sensor for recording the approach of an object, a piezoelectric sensor for recording a pressure, wherein the capacitive sensor is arranged on a first side of the first substrate and the piezoelectric sensor is arranged on a second side of the first substrate, wherein the second side is opposite the first side, or wherein the capacitive sensor and the piezoelectric sensor are arranged on the same side of the substrate.

Abstract: Systems for force measurement upon orthodontic appliances are described. Generally, a system for measuring a force or moment imparted by an orthodontic appliance may comprise a dentition mold having one or more target teeth each formed upon a fixture and which is movable independently of the dentition mold, a measurement sensor coupled to the fixture, and a processor in communication with the measurement sensor. An orthodontic appliance may be configured for placement upon the dentition mold where the orthodontic appliance imparts a force or moment upon the one or more target teeth such that the force or moment is transmitted to the measurement sensor via the fixture for measurement of the force or moment.

Abstract: The invention relates to an arrangement (100) for measuring a mechanical load on a test object, with the detection of changes in the magnetic field, said arrangement comprising a test object (14), which extends in a longitudinal direction L, and at least one sensor element (18) comprising a magnetic field generation device (20) for generating a magnetic field in the test object (14) and a magnetic field detection device (22) for measuring a change in the magnetic field in the test object (14). The sensor element (18) is arranged on a measurement surface (15) of the test object (14), at least one directional component of said measurement surface extending radially and/or transversely to the longitudinal direction L of the test object (14). A magnetic field is generated in the test object (14) and a change in the magnetic field in the test object (14) is measured on the measurement surface (15). The load measured is, in particular, a torque.

Abstract: There is described a method for interrogating optical fiber comprising fiber Bragg gratings (“FBGs”), using an optical fiber interrogator. The method comprises (a) generating an initial light pulse from phase coherent light emitted from a light source, wherein the initial light pulse is generated by modulating the intensity of the light; (b) splitting the initial light pulse into a pair of light pulses; (c) causing one of the light pulses to be delayed relative to the other of the light pulses; (d) transmitting the light pulses along the optical fiber; (e) receiving reflections of the light pulses off the FBGs; and (f) determining whether an optical path length between the FBGs has changed from an interference pattern resulting from the reflections of the light pulses.

Abstract: A comprehensive test platform for fluorescence microscope objective lenses, comprising a bottom plate (1), wherein a horizontal adjustment device and a vertical fixing mechanism are provided on the bottom plate (1); the horizontal adjustment device comprises a two-dimensional translation stage (2) and a two-dimensional tilting stage (3) stacked in sequence; a reticle (4) is provided on the two-dimensional tilting stage (3); the vertical fixing mechanism comprises a back plate (6), and the back plate (6) is fixedly connected onto the bottom plate (1); an optical detection device and a guide sliding device (7) in the vertical direction are separately fixedly provided on the back plate (6); and a sliding support (8) that can slide along the guide sliding device is provided on the guide sliding device (7), and a measuring objective lens (5) is fixed on the sliding support (8).

Abstract: A geometric inspection device for horological mobile components, including a headstock bearing a first spindle defining a first axis of rotation and a tailstock defining a second axis of rotation, on a common sole relative to which the headstock or the tailstock can move along a common direction parallel with the first axis of rotation. The device includes interchangeable micro-centering devices, at least one of the first spindle and the second spindle includes receiving means arranged to coaxially house a removable centering device, and at least one of the headstock and the tail stock includes pulling means arranged to pull without contact a micro-centering device axially along a common direction, opposite a space separating the headstock and the tailstock.

Abstract: An embodiment can provide a torque sensor comprising: a housing; a rotor that is arranged inside the housing; a stator that is arranged on an outer side of the rotor; a circuit board that is arranged in the housing; a Hall-effect sensor that is arranged on the circuit board; and a collector that is arranged adjacent to the Hall-effect sensor, wherein the collector includes a body portion and an extension portion extending from the body portion, the body portion is arranged to be spaced apart from the housing, and the extension portion is directly in contact with the housing.

Abstract: An aircraft moveable element monitoring system is provided. An exemplary aircraft moveable element monitoring system includes a signal generator (108), a signal transmitter coil (110) electrically connected to the signal generator (108); a signal detector (112); a signal receiver coil (114) electrically connected to the signal detector (112); and one or more moveable element signal transmission units (115a-c). An exemplary moveable element signal transmission unit (115) includes a first signal transmission unit coil and a second signal transmission unit coil, the first signal transmission unit coil being electrically connected to the second signal transmission unit coil. Each moveable element signal transmission unit is configured to be installed on a respective moveable element of an aircraft. The signal transmitter coil, the one or more moveable element signal transmission units and the signal receiver coil form an inductively coupled transmission line.

Abstract: An embodiment may provide a sensing device comprising: a stator comprising stator teeth; and a rotor comprising magnets, wherein: the stator teeth comprise a first stator tooth and a second stator tooth arranged to overlap the first stator tooth in the radial direction from the center of the stator; the first stator tooth comprises multiple first teeth and multiple third teeth, and the second stator tooth comprises multiple second teeth; one of the multiple first teeth is arranged to overlap one of the multiple second teeth in the radial direction; and the magnets are disposed between the multiple first teeth and the multiple third teeth, respectively.

Abstract: Differential magnetic field torque sensors include first and second magnetic field concentrators that guide magnetic flux to a magnetic field sensor from first and second magnetic field directors and a target, such as a multipole magnet assembly configured as a ring magnet. The magnetic field concentrators have pairs of sections that are interdigitated and configured adjacent to magnetic field sensing elements of the magnetic field sensor. The magnetic field directors can each have a plurality of teeth, which can be interdigitated and adjacent or proximate to the target. The magnetic field directors can be configured to be mounted as a unit to a rotatable shaft while the target can be configured to be mounted to a different rotatable shaft. The magnetic field concentrators and magnetic field sensor can be fixed while the magnetic field directors and target can rotate with respect to each other about a twist axis.

Abstract: To estimate a fracture starting point of steel due to hydrogen embrittlement with high accuracy. A steel fracture starting point estimation device includes a hydrogen concentration distribution calculation unit adapted to calculate a hydrogen concentration distribution in steel-to-be-estimated when the steel fractures due to hydrogen embrittlement; a local critical hydrogen content calculation unit adapted to calculate critical hydrogen content at which the steel-to-be-estimated fractures due to hydrogen embrittlement; and a fracture starting point estimation unit adapted to read the hydrogen concentration distribution out of a storage unit. To estimate, calculate, from the hydrogen concentration distribution, a location in the steel in which hydrogen concentration of the critical hydrogen content is distributed, and designate the location in the steel as the fracture starting point of the steel-to-be-estimated.

Abstract: In one embodiment, a ruggedized wafer level microelectromechanical (“MEMS”) force sensor includes a base and a cap. The MEMS force sensor includes a flexible membrane and a sensing element. The sensing element is electrically connected to integrated complementary metal-oxide-semiconductor (“CMOS”) circuitry provided on the same substrate as the sensing element. The CMOS circuitry can be configured to amplify, digitize, calibrate, store, and/or communicate force values through electrical terminals to external circuitry.

Abstract: Described herein is a ruggedized microelectromechanical (“MEMS”) force sensor. The sensor employs piezoresistive or piezoelectric sensing elements for force sensing where the force is converted to strain and converted to electrical signal. In one aspect, both the piezoresistive and the piezoelectric sensing elements are formed on one substrate and later bonded to another substrate on which the integrated circuitry is formed. In another aspect, the piezoelectric sensing element is formed on one substrate and later bonded to another substrate on which both the piezoresistive sensing element and the integrated circuitry are formed.

Abstract: Aspects of various embodiments are directed to sensor apparatuses and methods thereof. An example sensor apparatus includes a capacitor and sensor circuitry. The capacitor includes a first substrate having a first electrode, a second substrate having a second electrode, and a dielectric layer. The dielectric layer has a plurality of apertures arranged in a pattern, the first and second electrode being separated by the dielectric layer and arranged with an overlapping area with respect to one another. The sensor circuitry is coupled to the capacitor and configured and arranged to detect normal and shear forces applied to the sensor apparatus based on changes in capacitance derived from changes in at least one of a distance between the first and second electrodes and the overlapping area of the first and second electrodes.

Abstract: An integrated heated member management system includes: a cable module at least partially inserted into a heated member; a measurement module for measuring information generated in the cable module; an integrated management module for identifying a degree of damage to the heated member by a molten material on the basis of the information measured by the measurement module, to generate management information relating to the heated member; and a local terminal for receiving, from the integrated management module, the management information relating to the heated member.

Abstract: A ground simulation device and method for an on-orbit manipulation of a space manipulator is provided. The ground simulation device includes: a dual-arm robot, configured to simulate the space manipulator operating a target object; a suspension device, including a fixed post and passive rods, where the passive rods are movably connected with a top end of the fixed post, and the target object is suspended to the passive rods; and a simulation platform, configured to fix the dual-arm robot and the suspension device thereon. The ground simulation device provides the passive rods on the suspension device and suspends the target object to the passive rods, thus overcoming the gravity of the target object. In addition, the passive rods can drive the target object to move under an influence of an external force, achieving a similar suspension effect to that in space, and providing a desired, safe, and reliable implementation effect.

Abstract: A method for detecting a phase on a gear includes obtaining a first determination result indicating whether the gear has been detected at a first detection position. A second determination result indicating whether the gear has been detected at a second detection position is obtained. A third angle between the first and second angles is obtained. A third determination result indicating whether the gear has been detected at a third detection position is obtained. The first angle is replaced with the third angle when the third and first determination results are same, or the second angle is replaced with the third angle when the third and first determination results are different. The phase on the gear is detected based on an angle that is between the first angle and the second angle.