Abstract: The present invention discloses a sensing-acquisition-wireless transmission integrated microseismic monitoring system, comprising a sensing unit, wherein the system further comprises an acquisition-wireless transmission unit. The acquisition-wireless transmission unit comprises a flameproof enclosure, an acquisition instrument, a battery, a wireless transmitter and a transmitting antenna. A push nut is arranged at an open end of the flameproof enclosure. A support stage is sheathed on an outer wall of the flameproof enclosure. A connection ring is movably sheathed on the open end of the flameproof enclosure. The push nut is connected to the connection ring. Multiple inner wing elastic plates are circumferentially arranged on the connection ring. The inner wing elastic plates are connected to corresponding expandable plate outer wings, respectively. The present invention further discloses a sensing-acquisition-wireless transmission integrated microseismic monitoring method.

Abstract: A measurement device for polarization-maintaining optical fiber spindle difference delay is provided. The measurement device comprises a polarization-maintaining fiber (PM) Sagnac interferometer, a signal generator, a microwave detector, a microprocessor. The PM Sagnac interferometer comprises a laser, a photoelectric modulator, and a PM fiber coupler that are connected in sequence. The PM Sagnac interferometer further comprises an optical fiber interface J1 and an optical fiber interface J2 arranged at the two output ends of the PM fiber coupler, a PM fiber to be measured located between the fiber interface J1 and the fiber interface J2, and a photodetector arranged at the other output end of the PM fiber coupler.

Abstract: Disclosed are an antenna, an antenna control method and device, and a terminal. The antenna is applied to a terminal and includes: an antenna radiator container, an amorphous antenna radiator, and an antenna radiator control unit. The antenna radiator container is provided with a sealed accommodating cavity; the amorphous antenna radiator is provided in the accommodating cavity of the antenna radiator container; and the antenna radiator control unit is connected with the antenna radiator container and controls a configuration of the amorphous antenna radiator in the accommodating cavity, the configuration including a relative position of the amorphous antenna radiator in the accommodating cavity, or including a shape of the amorphous antenna radiator, or including a relative position of the amorphous antenna radiator in the accommodating cavity and a shape of the amorphous antenna radiator.

Abstract: A method for capturing a tensile force exerted during the pulling of a pipe or line during installation, includes capturing a strain on the pipe or line via one or more sensors arranged on the pipe or line. Multiple strain sensors may be arranged such that they are offset at various angles across the circumference of the element being installed. One or more sensors may be mounted to a towing head for pulling the pipe or the line during installation.

Abstract: Advanced compression garments and their methods of use, including garments with compression applying straps, and associated sensors that are able to sense the compression applied to an underlying body tissue by the straps. Pressure and/or temperature information from the sensors may be conveyed to a wearer of the garment and/or to another party.

Abstract: Among a plurality of sensors that detect a state of a control subject, a relationship fluctuation level between a magnitude of a signal output by a subject sensor and a magnitude of a signal output by another related sensor is calculated for each subject sensor and related sensor combination. Moreover, the subject sensor and related sensor combinations for which a value of the relationship fluctuation level is a predetermined value or more are identified, and a respective number of appearances of the subject sensor and the related sensor included in the identified combinations thereof is calculated.

Abstract: A stereo camera pair may be used to determine deformation and/or strain on a member based on differences in calculated movement of the cameras that capture images. In some embodiments, a first camera may be mounted to a first end of a member and a second camera may be mounted to a second end of the member opposite the first end. As the member bends, twists, or deforms in other ways, the deformation may be detectable based on differences in images captured by the first and second camera. This data may be used to detect possible wear or damage to the member, as a control input to a vehicle to reduce possible wear or damage to the member, as a prompt to initiate maintenance or inspection of the member, and/or for other reasons.

Abstract: The present disclosure relates to a touch input device. The touch input device includes a first touch sensing member which is provided with a first touch surface. A second touch sensing member is disposed across the first touch sensing member, and is provided with a second touch surface that is located on the opposite side of the first touch sensing member. A suspension is provided to be deformable in response to a touch direction when a touch is applied to one of the first touch sensing member and the second touch sensing member. A force sensor is provided in the suspension.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for causing a transducer to transmit an acoustic input signal into a member of a device. Receiving a detection signal representing reverberations of the input signal traveling within the member from a receiver. Detecting a contact of the member with an object external to the member based on a change in the detection signal, where the change in the detection signal represents an alteration in the reverberations of the input signal caused by the contact of the member with the object. Determining a position along the member of a point of the contact of the member with the object based on the change in the detection signal.

Abstract: A carrier of an electronic circuit, the carrier including a first sensor for determining a first signal based on a sum of a first normal stress component and a second normal stress component, and a second sensor for determining a second signal based on a difference between the first normal stress component and a second normal stress component. Also, a corresponding circuit, method and device.

Abstract: A stress compensated oscillator circuitry comprises a sensor arrangement for providing a sensor output signal SSensor, wherein the sensor output signal SSensor is based on an instantaneous stress or strain component ? in the semiconductor substrate, a processing arrangement for processing the sensor output signal SSensor and providing a control signal SControl depending on the instantaneous stress or strain component ? in the semiconductor substrate, and an oscillator arrangement for providing an oscillator output signal Sosc having an oscillator frequency fosc based on the control signal SControl, wherein the control signal SControl controls the oscillator output signal Sosc, and wherein the control signal SControl reduces the influence of the instantaneous stress or strain component ? in the semiconductor substrate onto the oscillator output signal Sosc, so that the oscillator circuitry provides a stress compensated oscillator output signal.

Abstract: An example method includes detecting a signal that represents a strain of a frame of a wearable computing device and causing the wearable computing device to perform a function based on the detected signal. The method may also include generating a representation of the detected signal, comparing the representation of the signal to a threshold value, and causing the wearable computing device to perform a function based on the comparison to the threshold value. An example wearable computing device and an example non-transitory computer readable medium related to the example method are also disclosed herein.

Abstract: A robot control device includes an operation axis setting unit that sets a axis rotationally moved according to an applied force as an operation axis and sets a rotational moving direction of the operation axis; a first operation force acquisition unit that obtains a first virtual force that is virtually applied to the operation axis to assume that the first virtual force is a first operation force; and an operation command unit that outputs an operation command for moving the operation axis set by the operation axis setting unit on the basis of an operation force determined from the first operation force. The operation command unit obtains a target moving direction and a target moving velocity of the operation axis on the basis of the first operation force and the rotational moving direction set by the operation axis setting unit, so as to move the operation axis.

Abstract: A deformation measurement sensor for measuring pressures and shearing forces according to the present invention includes: a plurality of beams shaped like a lattice; a strain gauge attached to each of the plurality of beams for measuring a deformation rate; a frame connected to the end of the lattice shape for surrounding the plurality of beams; and holes for arranging lines and formed in the intersections of the plurality of beams, whereby it is possible to precisely measure the deformation rate depending on the pressures or shearing forces exerted to a plurality of areas.

Abstract: A collaboration system provides enhanced user interface to enable users to interact with electronic devices. In one embodiment, users can add content to a digital system by using a pen that streams coordinates so that input to the digital system may be based on conventional pen and paper handwriting. In another embodiment, a pie-based menu system is used for input to large display area digital devices in which an occluded portion of the pie-based menu system is not used for direct input by the user. The selection of which areas of the pie-based menu system should be omitted from use is adaptive and responsive to whether the user is left-handed or right-handed, and the wrist angle defined by the user's posture. In still another embodiment, an ergonomic open-shaped pie menu system is provided to facilitate selection of options on a digital surface.

Abstract: A deformation measurement sensor for measuring pressures and shearing forces according to the present invention includes: a plurality of beams shaped like a lattice; a strain gauge attached to each of the plurality of beams for measuring a deformation rate; a frame connected to the end of the lattice shape for surrounding the plurality of beams; and holes for arranging lines and formed in the intersections of the plurality of beams, whereby it is possible to precisely measure the deformation rate depending on the pressures or shearing forces exerted to a plurality of areas.

Abstract: The invention provides a method and system of monitoring bending strain on a wind turbine blade. The method in one aspect comprises: locating at least three strain sensors on the turbine blade, in use each strain sensor providing a strain measurement, the strain sensors located such that edgewise and flapwise bending can be determined from the strain measurements; calculating a plurality of resultant bending strains using the strain measurements; calculating an average resultant bending strain from the plurality of resultant bending strains; and calculating a confidence value for a first sensor based on a comparison of resultant bending strains derived from the strain measurement from the first sensor with the average resultant bending strain.

Abstract: A strain sensor includes a package to be connected to a strain generating body, a detector configured to convert a mechanical strain of the strain generating body into an electric signal and output the electric signal, and a processor chip connected to an upper surface of the package and separated from a detector. A recess is provided in the upper surface of the package. The detector is accommodated in the recess and joined to the recess. This strain sensor can have a small size.

Abstract: A wheel operating force sensor includes: an attachment fixed to a vehicle body member supported by a suspension device; a hub to which a wheel is fixed and which is rotatably supported about a wheel axis with respect to the attachment; a sensing body having a tube formed substantially concentrically with the wheel axis, one end of the tube being fixed to the attachment, and the other end being connected to the hub, with a hub bearing being interposed between the other end and the hub; and a component force sensing unit having a bridge circuit including per component force at least four strain gauges that are provided on a circumferential surface of the tube of the sensing body. The hub bearing has: a radial bearing provided between the sensing body and the hub and receiving a load in a radial direction; and a thrust bearing provided between the sensing body and the hub and receiving a load in a thrust direction, and moreover provided separately from the radial bearing.

Abstract: A method of manufacturing a fluidic structure is disclosed. A cavity that defines a shape of an element of the fluidic structure within a material is formed. The cavity is filled with liquid metal. The cavity is sealed. The fluidic structure behaves as an antenna. A fluidic antenna includes a material that defines a shape of the fluidic antenna by a cavity filled with liquid metal formed within the material, where the material further defines at least one mechanical property of the fluidic antenna.

Abstract: A panel includes a plurality of integrated strain gauges for measuring deformation information relating to the panel. The strain gauges are arranged parallel to one another in the longitudinal direction of the panel and have at least two different lengths.

Abstract: A testing tool includes a tool body, a panel imitation member disposed on the tool body, an indicating device, and a probe device. A test panel cover is detachably disposed on the tool body. The probe device is disposed in the panel imitation member and includes a probe and a conductive member disposed under the probe. The probe is elastically disposed through the panel imitation member between initial and triggering positions. When the probe is located at the initial position, the probe extends out from the panel imitation member to abut against the test panel cover. When the test panel cover is sunken inward to contact with the panel imitation member so as to drive the probe to the triggering position, the probe contacts with the conductive member to electrically conduct the indicating device.

Abstract: A tension measurement apparatus that can carry out tension measurement of superior reproducibility with high sensitivity even for a target object of a stranded wire structure is provided. A cylindrical magnetizer arranged to surround a portion of a long magnetic element that becomes the target object of measurement direct-current magnetizes the magnetic element in the longitudinal direction up to the range of approach to saturation magnetization. Using a Hall element (magnetic sensor) arranged in proximity to the magnetic element at the central region in the longitudinal direction of the magnetic domain, the spatial magnetic field intensity in the neighborhood of the surface of the magnetic element, greatly differing corresponding to stress variation, is detected. Based on the detection value, the tension acting on the magnetic element is measured. Accordingly, a measurement result of superior reproducibility with high sensitivity is obtained.

Abstract: A resistive device includes at least one strain gauge (12, 14) comprising silicon nanowires, a power supply (16) that has at least one current source (22, 24) able to generate a current (Ibias) for biasing the strain gauge; and acquisition means (18) able to deliver a measurement signal which can be used to determine the variation in the electrical resistance of the gauge. The power supply includes a chopper (26) allowing the biasing current generated by each current source to flow through each gauge only during a fraction of an operating cycle of the device.

Abstract: A system and method is provided for monitoring aircraft health and status using a situation-aware sensing system. The system includes an independent power source, a sensor that continuously measures a signal of interest to yield sensor data, and a processor that compares the sensor data to threshold data. The processor adjusts an operational parameter of the situation-aware sensing system to conserve power when the sensor data does not exceed the threshold data. The processor further adjusts the operational parameter of the situation-aware sensing system to stop conserving power when the sensor data exceeds the threshold data.

Abstract: A method of manufacturing a fluidic structure is disclosed. A cavity that defines a shape of an element of the fluidic structure within a material is formed. The cavity is filled with liquid metal. The cavity is sealed. The fluidic structure behaves as an antenna. A fluidic antenna includes a material that defines a shape of the fluidic antenna by a cavity filled with liquid metal formed within the material, where the material further defines at least one mechanical property of the fluidic antenna.

Abstract: A strain measurement device includes a reference material, and a displacement sensor configured to detect relative changes in distance between the sensor and the reference material. At least one of the displacement sensor and the reference material is coupled with a pre-cured elastomeric material. The displacement sensor generates a data signal to a processor that is configured to determine a strain of another elastomeric material based at least in part on the data signal received from the sensor. A displacement sensor and a reference material may be positioned within an elastomeric material within a casing of a solid rocket motor for determining strain experienced by the elastomeric material, such as the propellant of the solid rocket motor. A method includes installing a sensor of an elastomeric material. Another method includes determining strain of an elastomeric material of a solid rocket motor.

Abstract: An eddy current probe includes an excitation coil for coupling to a low-frequency alternating current (AC) source. A magnetoresistive sensor is centrally disposed within and at one end of the excitation coil to thereby define a sensing end of the probe. A tubular flux-focusing lens is disposed between the excitation coil and the magnetoresistive sensor. An excitation wire is spaced apart from the magnetoresistive sensor in a plane that is perpendicular to the sensor's axis of sensitivity and such that, when the sensing end of the eddy current probe is positioned adjacent to the surface of a structure, the excitation wire is disposed between the magnetoresistive sensor and the surface of the structure. The excitation wire is coupled to a high-frequency AC source. The excitation coil and flux-focusing lens can be omitted when only surface inspection is required.

Abstract: A wireless in-plane strain and displacement sensor includes an electrical conductor fixedly coupled to a substrate subject to strain conditions. The electrical conductor is shaped between its ends for storage of an electric field and a magnetic field, and remains electrically unconnected to define an unconnected open-circuit having inductance and capacitance. In the presence of a time-varying magnetic field, the electrical conductor so-shaped resonates to generate harmonic electric and magnetic field responses. The sensor also includes at least one electrically unconnected electrode having an end and a free portion extending from the end thereof. The end of each electrode is fixedly coupled to the substrate and the free portion thereof remains unencumbered and spaced apart from a portion of the electrical conductor so-shaped. More specifically, at least some of the free portion is disposed at a location lying within the magnetic field response generated by the electrical conductor.

Abstract: A robot according to an embodiment includes an arm, a strain sensor, one or more actuator, and a sensor fixing jig. The strain sensor includes a piezoelectric body that has a natural frequency higher than a natural frequency of a structural material forming the arm. The one or more actuators are provided in the arm to drive the arm. The sensor fixing jig is provided in a base of the actuator, among the actuators in the arm, closest to a base end of the arm. The strain sensor is provided in the sensor fixing jig.

Abstract: A method for manufacturing an integrated circuit includes forming in a substrate a measuring circuit sensitive to mechanical stresses and configured to supply a measurement signal representative of mechanical stresses exerted on the measuring circuit. The measuring circuit is positioned such that the measurement signal is also representative of mechanical stresses exerted on a functional circuit of the integrated circuit. A method of using the integrated circuit includes determining from the measurement signal the value of a parameter of the functional circuit predicted to mitigate an impact of the variation in mechanical stresses on the operation of the functional circuit, and supplying the functional circuit with the determined value of the parameter.

Abstract: According to example embodiments of the invention, a microscale testing stage comprises a frame having first and second opposing ends and first and second side beams, at least one deformable force sensor beam, a first longitudinal beam having a free end, a second longitudinal beam having a facing free end, a support structure, and a pair of slots disposed at each of the free ends. In certain embodiments, a layer of a conductive material defines first and second conductive paths and an open circuit that can be closed by the specimen across the gap. In other embodiments, the stage is formed of a high melting temperature material.

Abstract: Embodiments relate to stress compensation in differential sensors. In an embodiment, instead of compensating for stress on each sensor element independently, stress compensation circuitry aims to remove stress-related mismatch between two sensor elements using the sensor elements themselves to detect the mismatch. A circuit can be implemented in embodiments to detect mechanical stress-related mismatch between sensor elements using the sensor elements, and tune the output signal by a compensation factor to eliminate the mismatch. Embodiments are therefore less complicated and less expensive than conventional approaches. While embodiments have applicability to virtually any differential sensor, including magnetic field, pressure, temperature, current and speed, an example embodiment discussed herein relates to magnetic field.

Abstract: The invention relates to a device (1) for converting a force or a pressure into an electrical signal, the device (1) having a first deformation element (10), in particular a first membrane (12), by means of which the force or the pressure can be applied to the device (1), and a second deformation element (20), in particular a second membrane (22), by means of the deflection of which the force or the pressure can be converted into an electrical signal, wherein the first deformation element (10) has a first force transmitting means (14) and the second deformation element (20) has a second force transmitting means (24) for transmitting the force from the first deformation element (10) to the second deformation element (20).

Abstract: The invention provides a method and system of monitoring bending strain on a wind turbine blade.

Abstract: A quasi-static bend sensor is taught that comprises a layering of a plurality of ionic polymer metal composite (IPMC) sections with intervening dielectric sections in a vertical stack configuration. The IPMC sections are electrically connected in parallel. The surface of the stack is coated with high-purity synthetic isoparaffins for polymer hydration to increase step response consistency. Finally, the vertical stack configuration is electrically connected to an electric field measurement device and a linear quadratic regulator based controller for reducing settling time.

Abstract: The present disclosure relates to a pressure control switch. The pressure control switch includes a bistable resistance element. The bistable resistance element includes an organic, soft, low-conductivity matrix, and a plurality of high conductivity particles dispersed in the matrix. The bistable resistance element switches from a low resistance state to a high resistance state by receiving a pressure change applied to the bistable resistance element. The present disclosure also relates to a method for using the pressure control switch and an alarm system.

Abstract: Provided is a moisture detection device including: a moisture detection label that has at least a pair of detection terminals and a pattern, the detection terminals being provided on a base material with an insulated front surface, the pattern being provided on the surface of the base material and formed between the detection terminals with water-dispersible and conductive paint; and detection circuit which detects an electrical connection state between the detection terminals.

Abstract: A device is provided for monitoring strain and acoustic emission in an object. The device includes: a strain measurement portion operable to measure strain; an adhesive layer disposed on the strain measurement portion; and a peel-off mask disposed on the adhesive layer. In an example embodiment, the strain measurement portion includes a body, a transparent window portion, a strain measurement device and a signal processing portion. The body includes an attachment surface, wherein the adhesive layer is disposed on the attachment surface for attachment of the body to the object. The transparent window portion is arranged to enable viewing of a portion of the object through the body. The strain measurement device is disposed within the transparent window portion and is operable to generate a strain signal based on strain in the object. The signal processing portion is operable to generate a processed signal based on the strain signal.

Abstract: An apparatus for testing flexible containers traveling along a production line is disclosed. The apparatus includes a compression assembly in line with the production line. The compression assembly has a flexible section for directly contacting and applying a predetermined compression over a predetermined distance to a plurality of containers as they travel by an inspection station. The apparatus also includes a sensor assembly provided in direct contact with a container while a container is in the inspection station. The sensor assembly is arranged to sense the force applied by the compression assembly to the container. The sensor assembly generates a signal that varies in accordance with the internal pressure of the containers as they pass by the sensor assembly. The apparatus further includes a processing circuit configured to receive the signals from the sensor assembly and to determine the acceptability of the internal pressure of the containers.

Abstract: Sensing strain in an adhesively bonded joint includes inducing a strain wave in the joint, and sensing a change in local magnetic characteristics in the joint.

Abstract: A low-cost and non-invasive method for remote monitoring deformations of a structure (2), which method envisages to couple at least two RFID tags (3) to the structure (2) in its respective points (10a, 10b, 10a-10c), to interrogate at radio frequency the RFID tags (3) so that a resultant electromagnetic field is produced at a certain distance (DINF) from the structure (2), the resultant electromagnetic field ensuing from a combination of the electromagnetic fields produced individually by each RFID tags (3) in response to the interrogation, to measure the resultant electromagnetic field at such a distance (DINF) from the structure (2) for obtaining measurements of the resultant electromagnetic field, and to determine the deformations of the structure (2) as a function of the measurements of the resultant electromagnetic field.

Abstract: Disclosed herein is a sonic resonator system for use in testing the adhesive bond strength of composite materials. Also disclosed herein are a method of calibrating the sonic resonator system to work with a particular composite bond joint, and a method of non-destructive testing the “pass-fail” of the bonded composite bond strength, based on a required bond strength.

Abstract: A method, an arrangement and a program process a measurement signal generated in a measurement transducer of an electronic force-measuring device, particularly a balance. The generated measurement signal corresponds to the force acting on the transducer. The measurement signal is entered directly or by way of a pre-processing stage into a display function which assigns corresponding output values to the values of the measurement signal. The output values are subsequently presented in a display or passed on for further processing. The input range of the display function contains a capture range, so that the values of the measurement signal that lie within the capture range are assigned a common output value by the display function, and the position of the capture range within the input range is controlled dependent on the generated measurement signal.

Abstract: Methods and systems for sensing strain are disclosed. A thin film sensor includes a thin film polymer matrix that has two electrical terminals, conductive nanoparticles dispersed within the polymer matrix, and carbon nanotubes dispersed within the polymer matrix. The thin film sensor has a resistivity across the two electrical terminals that varies with a magnitude of strain applied to the thin film sensor. Strain may be sensed by applying a voltage to the thin film sensor, and an electrical response of the thin film sensor may be detected due to a strain present across the sensor. A magnitude of the strain can be determined based on the electrical response. Methods and systems for a memristor are also disclosed. The memristor has a resistivity that varies with a time-varying voltage input and with a time-varying strain input.

Abstract: A method and device for determining critical buffeting loads on a structure of an aircraft is disclosed. The device (1) comprises means (2, UC) implementing a semi-empirical method for determining the critical loads generated by some buffeting on the structure of the airplane.

Abstract: Provided is a moisture detection device including: a moisture detection label that has at least a pair of detection terminals and a pattern, the detection terminals being provided on a base material with an insulated front surface, the pattern being provided on the surface of the base material and formed between the detection terminals with water-dispersible and conductive paint; and detection circuit which detects an electrical connection state between the detection terminals.

Abstract: A hybrid component supporting component for a motor vehicle includes a base component made of a metallic material, at least some parts of which are provided with a plastic material. The hybrid component includes a detection device having at least one conductor element by means of which a deformation of the hybrid component can be detected.

Abstract: A method to compensate geometrical errors in processing machines, in which a workpiece holder (8) is arranged such that it can be adjusted on the basis of measurement signals that have been received by being able to be rotated relative to a fixture (9) in the processing machine to which the workpiece holder is attached. A method for the alignment of a workpiece in processing machines, and an arrangement for the realization of the method are disclosed. The arrangement includes a workpiece holder (8), the angle of which relative to a fixture (9) in the processing machine to which the workpiece holder (8) is connected can be adjusted.

Abstract: A fabric strain sensor (10) for measuring in-plane unidirectional strain, the sensor (10) comprising a mixture (20) of electrically conductive particles or fibers and an elastomer matrix, applied onto an elastic fabric substrate (30).