Abstract: A jointing structure includes a jointing member and at least two abutting members. The at least two abutting members are disposed on the jointing member. The jointing member includes a surface and a plurality of side surfaces surrounding the surface, and the at least two abutting members are disposed on at least two of the side surfaces respectively.

Abstract: An electrophysiology catheter (100) includes a catheter distal portion (110) on which a force sensor (200) is arranged. The force sensor (200) includes an elastic tube (210) and strain gauges (220). The elastic tube (210) has a hollow portion in its wall, and the strain gauges (220) are disposed external to the hollow portion. Compared to the design with the strain gauges (220) overlapping the hollow portion, arranging them over solid portions of the elastic tube (210) allows the strain gauges (220) to collect more accurate electrical signals while suffering from less interference. This can result in a significant improvement in contact force measurement accuracy of the catheter distal portion (110).

Abstract: Device for detecting highly stressed positions in a machining tool with a spindle head and a spindle motor, the device comprising: a measuring unit adapted to acquire measurement values of the spindle head during operation of the spindle unit, the measurement values having a current position of the spindle head; a memory unit adapted to store the measurement values acquired; a stress determining unit adapted to determine an associated stress value for each of the detected positions taking into account the measurement values; and an output unit adapted to at least one of outputting the detected positions with the respective associated stress value, and determining from a total number of the determined stress values at least one high stress value which is greater than the other stress values of the total number, and then outputting the at least one determined high stress value with the position assigned to it.

Abstract: Disclosed herein is a flexible and soft material-based pressure sensor and/or switch assembly that can be used for soft goods as a soft switch. The material selection and design enhances the maximum bending ability and squeezing ability of the pressure sensor/switch and the sensor/switch is made to withstand heavy washes while maintaining its functionality of switching with a light touch based on the use of a waterproof stacking assembly that contains a piezoresistant material, electrodes and other components.

Abstract: A controller for sensing deformation including a sensor structure having a deformable conductor and another conductor (which may also be deformable). The deformable conductor may be made out of a flexible non-fluid material (e.g., rubber) or a conductive fluid. The deformable conductor may be deformed by the deformation of the sensor structure or by other forces. The sensor comprises circuitry to drive and sense signals on interacting pairs of conductors (the deformable conductor or the other conductor can act as the drive side, or as the sense side). Sense signals are processed to analyze deformation of the deformable conductor, and deformation of the sensor structure. Where the sensor is deployed proximate to human skin, deformation and changes in deformation may be used to correlate or infer a body position, movement or pose.

Abstract: A platform load sensing system connected between a boom and a platform includes an upper bearing link connecting the boom side to the platform side, and a lower bearing link connecting the boom side to the platform side. The upper and lower bearing links are configured to allow for relative motion between the boom side and the platform side. A load member is secured to the platform side between the upper and lower bearing links, and a load cell is secured to the boom side. A load moment on the platform side is functionally eliminated by the upper and lower bearing links, and a vertical load on the platform side is transferred through the load member to the load cell.

Abstract: A device for measuring the pressure and temperature of fluids is provided, which has a temperature-sensitive element and a pressure-sensitive cell which are arranged connected to an electronic circuit, connected to which, in turn, are terminals of a connector by which a metal body is closed, in which the element and the cell are housed; the cell being housed in a cavity defined on one side of a plastic body through which electric conductors pass, which connect the element to the electronic circuit; the cell resting on a seal disposed between the cell and the base of the cavity, a wedge element placed over the cell which rests against the cell to compress the seal to thereby provide a seal around the mouth of a conduit through which the pressure of the fluid to be controlled is transmitted onto the cell.

Abstract: A button assembly is disposed in a rocker. The button assembly including a base, a pressure sensor and a keycap. The base has two lower positioning portions with each of the two lower positioning portions protruding outwardly from respective sides of the base. The pressure sensor is mounted on the base. The keycap overlies the pressure sensor. The keycap has two upper positioning portions with each of the two upper positioning portions protruding outwardly from respective sides of the keycap. The two upper positioning portions are individually fixed on each of the two lower positioning portions. As described above, a push-button structure is thus formed by the two lower positioning portions and the two upper positioning portions configured among the base, the pressure sensor and the keycap to achieve the modularization of the button assembly of the present invention.

Abstract: A rock sample is nano-indented from a surface of the rock sample to a specified depth less than a thickness of the rock sample. While nano-indenting, multiple depths from the surface to the specified depth and multiple loads applied to the sample are measured. From the multiple loads and the multiple depths, a change in load over a specified depth is determined, using which an energy associated with nano-indenting rock sample is determined. From a Scanning Electron Microscope (SEM) image of the nano-indented rock sample, an indentation volume is determined responsive to nano-indenting, and, using the volume, an energy density is determined. It is determined that the energy density associated with the rock sample is substantially equal to energy density of a portion of a subterranean zone in a hydrocarbon reservoir. In response, the physical properties of the rock sample are assigned to the portion of the subterranean zone.

Abstract: A transmission includes an input shaft and an output shaft, the input shaft selectively accepting a torque input from a prime mover, and the output shaft selectively providing torque output to a driveline. A controller determines a shaft displacement angle representing an angle value of rotational displacement difference between at least two shafts of the transmission, and performs a transmission operation responsive to the shaft displacement angle.

Abstract: A flexible sensor that includes a printed circuit board (PCB), a capacitive structure on the PCB, and mechanical coupling sites. The PCB includes a slot extending from an outer edge of the PCB to an inner portion of the PCB, and the slot defines a first edge and a second edge facing the first edge. The first and second edges are separated by a gap when the PCB is in an unflexed state. The slot is configured to permit the PCB to flex so as to vary a relative position of the first edge with respect to the second edge. The capacitive structure on the PCB includes a first edge electrode on a portion of the first edge of the PCB, and a second edge electrode on a portion of a second edge of PCB. The second edge electrode is aligned with the first edge electrode across the slot.

Abstract: Vibratory meters (5), and methods for their use measuring a fluid are provided. Each vibratory meter includes a multichannel flow tube (300) comprising two or more fluid channels (302), a pickoff (170), a driver (180), and meter electronics (20) configured to apply a drive signal to the driver at a drive frequency ?, and measure a deflection of the multichannel flow tube with the pickoff. In examples, at least one fluid channel has an effective diameter that is related to kinematic viscosity, inverse Stokes number, and drive frequency. In further examples, the driver may apply a drive signal to the driver having a drive frequency proportional to the kinematic viscosity, inverse Stokes number, and effective diameter.

Abstract: A sensor suitable for measuring the pressure applied by a bandage is provided. The sensor comprises an elongate strip having a sensor region. The sensor region comprises: a base plate; a top plate; a compressible spacer positioned between the base plate and the top plate and, an electronic sensing apparatus configured to detect distance between the top plate and the base plate. The top plate is arranged to compress the compressible spacer and arranged such that the bandage exerts a force on the surface of the top plate perpendicular to the surface when the sensor is positioned between the bandage and a limb.

Abstract: A method to assemble a highly stretchable and highly sensitive strain sensor. Carbon nanofibers prepared by electrospinning of PAN followed by stabilization and carbonization, are sandwiched in two layers of elastomer PU. The CNFs/PU strain sensor shows large strain range of 300%, high sensitivity with gauge factor up to 72.5, and superior stability and durability during 8000 cycles of stretch/release. The CNFs/PU strain sensor shows fast, stable and reproducible responses following the bending movement of fingers, wrists, and elbows. The flexible CNFs/PU strain sensor with has broad applications in wearable devices for human motion monitoring.

Abstract: The invention relates to floating platform mooring and involves an improved platform mounted tendon tension monitoring system with porch mounted variable reluctance measurement technology sensors configured. The variable reluctance measurement technology sensors of this system are optimized for porch mounting. The porch mounted tendon tension monitoring system can also be configured such that the porch-mounted optimized variable reluctance measurement technology sensors are replaceable. Sensors may be replaced to extend the desired useful lifetime of a tendon tension monitoring system or in the event that a sensor happens to malfunction. A plurality of variable reluctance measurement technology sensors can be configured in sensor packs at the corners or at other locations where tendon tension monitoring can be useful for a floating platform.

Abstract: A physical quantity detection device includes: a housing; a circuit board; a resin material which covers the circuit board; a cover which forms a circuit chamber in which the circuit board is disposed and a flow path through which a gas to be measured passes together with the housing; and a conductor which is disposed to be exposed to the flow path, in which the conductor and the circuit board are electrically connected to each other.

Abstract: A method for evaluating the breakage strength of first and second cemented surfaces of well cementation under a dynamic load, includes: producing a rock-set cement-casing composite structure sample; clamping the sample between an incident rod and an output rod of a Hopkinson rod, hitting the incident rod with a conical punch to generate incident waves, enabling the incident waves to pass through the sample to generate reflected waves and projected waves, recording dynamic strain signals of incident waves, reflected waves and projected waves, and converting the dynamic strain signals into electrical signals and transmitting the electrical signals to a computer; recording the process and the corresponding time point from breakage starting to a complete breakage of the first and second cemented surfaces by a photographic instrument; obtaining a strain rate time travel curve and a stress-strain curve, and obtaining the corresponding breakage strength by analyzing the curve peak points.

Abstract: A concept for torque measurement on a shaft is described. To that end, millimeter waves are transmitted in the direction of a first encoder structure, which is coupled to a first shaft section of the shaft for conjoint rotation and is arranged around the shaft, and in the direction of a second encoder structure, which is coupled to a second shaft section of the shaft for conjoint rotation and is arranged around the shaft. The first encoder structure and the second encoder structure are rotatable relative to one another in the case of a torque to be transmitted via the shaft. At least one reception signal is generated on the basis of millimeter waves reflected or transmitted by the first and second encoder structures. A torque transmitted using the shaft is determined on the basis of the at least one reception signal.

Abstract: A sensing system (10) for monitoring the integrity of a structure has first and second channels (12 and 14) arranged for sealing onto a surface (16) of the structure (18) to form respective spaced apart first and second galleries (20 and 22). A fluid (F1) is in the first gallery (20) and a fluid (F2) is in the second gallery (22). A measurement system (24) measures for a change in a pressure independent physical characteristic: a) in the first gallery (20); b) in the second gallery (22); c) between the first gallery (20) and the second gallery (22); or d) a combination of two or more of a), b) and c) where the change is dependent on a mass flow of fluid from one of, or between, the sealed galleries due to a crack in the structure. The pressure independent physical characteristic of the fluid can be the conductivity of the fluid or the optical properties of the fluid.

Abstract: In some examples, the disclosure describes an accelerometer including a proof mass, and a housing enclosing the proof mass. The accelerometer includes a cold temperature sink defining a condensing surface. In some examples, the disclosure describes a technique for making an accelerometer. The example technique includes forming a cold temperature sink defining a condensing surface, and enclosing a proof mass in the housing. The condensing surface is configured to promote at least one of condensation or ice formation in an interior of the housing. The condensing surface is spaced from the proof mass to divert at least one of condensate or ice away from the proof mass.