Abstract: A vibration detection method is presented to accurately detect vibration physically applied to an optical fiber, using a simple determination reference. In a vibration detection method, scattered light of a given target segment of a measurement target fiber is indicated by vectors of an in-phase component and a quadrature component, and a triangular shape constituted by a near-end-side vector of the target segment and a far-end-side vector is used as a physical amount to be tracked. That is, it is determined whether or not there is vibration based on a change in shape of the triangular shape with respect to a reference state. This is a detection method in which DAS-I and DAS-P are combined, a simple determination reference such as shape change of a triangular shape is employed, and overlooking of vibration detection can be reduced.

Abstract: A material analysis device for analysing a material sample. The material analysis device is equipped with a—generally temperature-controllable—sample chamber and a sample holder, which, supported by at least one pillar, protrudes into the sample chamber, and a loading shaft, to one end of which force is applied by an exciter, and the other end of which bears a connecting member, with which it transmits force to the sample in a defined manner and loads same thereby.

Abstract: A pressure sensor with a communicating passage in a straight line. The pressure sensor includes a main body housing having an inner space and having a connector part provided for connection with an outside thereof. In the main body housing, the first end of a terminal is located in the inner space and the second end thereof is located in the connector part. A substrate is provided in the inner space of the main body housing and on which a sensing element is mounted, a cover housing coupled to the main body housing and comprising a seal configured to be in close contact with the main body housing and with edges of one surface of the sensing element. A communicating passage communicates with the inner space in a straight line, and thus communicates with one surface of the sensing element at a downstream side thereof.

Abstract: A testing machine includes a base, at least a pair of columns joined to the base and a crosshead joined to the columns at a location spaced apart from the base. At least a pair of specimen holders are provided. A first specimen holder is supported by the crosshead and faces the base, and a second specimen holder is supported by the base, the base being that portion joined to each of the columns closest to the crosshead. An actuator connected in series between one of the specimen holders and the corresponding base or crosshead. A brace connected to each of the columns and spanning between the columns, the brace being connected to each of the columns at a location along a length thereof between the base and the crosshead.

Abstract: A sensor configured to sense when a force is applied to a surface includes a capacitive structure having a first conductive layer, a dielectric layer, and a second conductive layer. The dielectric layer is overlain on the first conductive layer and the second conductive layer is overlain on the dielectric layer. A glass superstrate has a first side and a second side, with the first side overlain on the second conductive layer. The force is applied to the second side of the glass superstrate. The force results from an object attached to the second side of the glass superstrate. The force causes capacitance changes between the first and second conductive layers. The force can be compressive or tensile, depending on whether the object is attached by magnet or adhesive.

Abstract: Systems for real-time wave monitoring, which provide real-time updates of wave conditions to users who wish to access the beach for leisure or sporting activities, are described. One example system includes a plurality of buoys and a transceiver. Each of the plurality of buoys includes a sensor array configured to continuously monitor one or more characteristics of the wave conditions, and the transceiver is configured to transmit, to a remote server, information corresponding to the one or more characteristics of the wave conditions over a wireless communication channel. The information from each of the plurality of buoys is combined with a user preference to provide a user with a message regarding the wave conditions in response to a user request, and a duration between the user request and transmission of the information from each of the plurality of buoys is less than a predetermined value.

Abstract: An optical fiber sensing system with improved state detection includes: a cable including optical fibers; a reception unit configured to receive an optical signal from at least one optical fiber included in the cable and acquire a first parameter and a second parameter having a pattern in accordance with a state of a target to be monitored based on the optical signal; and a state detection unit configured to detect a predetermined event based on the pattern that the first parameter has and then detect the state of the target to be monitored based on the pattern that the second parameter has.

Abstract: A method of utility pole integrity assessment by distributed fiber optic sensing/distributed acoustic sensing (DFOS/DAS) employing existing telecommunications fiber optic cable as a sensor. The fiber optic cable is suspended aerially from a plurality of utility poles and a machine learning model is developed during training by mechanically exciting the utility poles. Once developed, and in sharp contrast to the prior art, the machine learning model—in conjunction with DFOS/DAS operation—determines an integrity assessment for a plurality of the utility poles aerially suspending the fiber optic cable from a mechanical impact of a single pole.

Abstract: An electric actuator includes a stationary support and a guide system having a single stationary guide joined to the stationary support having an axis. The actuator also includes a stationary assembly secured to the stationary support. A moving assembly is movable relative to the stationary support on the guide, where the moving assembly and the stationary assembly provide at least two sets of interacting magnetic fields disposed about the guide at equal angular intervals. A test specimen support is joined to the moving assembly and disposed on one side of the stationary support so as to move along the axis with movement of the moving assembly, the axis extending through the test specimen support.

Abstract: A compact material testing system is configured to expose multiple samples housed within separate sample chambers to simulated fluid, thermal, and mechanical loading conditions. The system includes multiple independent load actuators positioned to extend actuator rods into corresponding sample chambers to apply mechanical loading to the test sample within. A fluid control system is included to bathe each test sample in a fluid medium and replenish the fluid medium within its sample chamber as needed. Each sample chamber includes a gas inlet and gas outlet to provide non-turbulent circulation and control of atmospheric composition above the fluid medium inside the chamber. A logic programmable controller is provided for input of test parameters and automated simultaneous control of mechanical loading, fluid flow, and temperature in the sample chambers.

Abstract: A novel method and system is disclosed for using a commodity RFID system for automatically measuring levels of soil moisture in planting containers. A large number of planting containers are used to grow pots in soil in a greenhouse. An RFID reader interrogates passive RFID tags affixed to the planting containers. The RFID reader can be attached to a robotic arm configured to move above multiple rows and columns of containers. Signal features of specific passive RFID tags affixed to specific ones of the containers are automatically monitored, including a minimum response threshold of RFID reader transmission power to activate the passive RFID tag (“MRT”), based on the wireless interrogation of specific tags by the reader. Soil moisture levels of specific containers are then automatically determined based on the signal features of the attached tags, and effects of soilure moisture on electromagnetic fields of antennas of tags.

Abstract: A method for manufacturing a sensor. The sensor includes a sensing element and a housing, the housing including an interior space, which is accessible through a housing opening, and the sensing element being situated in the interior space and being designed to detect a property and/or a composition of an ambient medium of the sensor. The method includes filling the interior space with a protective medium through the housing opening, the protective medium being designed to transfer the property and/or the composition of the ambient medium to the sensing element; fixing a preferably flexible diaphragm at or in the housing opening preferably for sealing the housing opening, the diaphragm including at least one diaphragm opening; and sealing the at least one diaphragm opening. A sensor, which is manufactured according to this method, is also described.

Abstract: Provided is a digitalization system capable of digitalizing the skills of delicate work. This digitalization system comprises a first sensor mounted on a work tool and which detects a deformation of the work tool when the work tool is pressed against a work target, a second sensor which detects a force applied to the work target or a force applied to the work tool when the work tool is pressed against the work target, and a computer which calculates an angle of a corner formed with the work tool and the work target based on sensor values acquired with the first sensor, and calculates a force applied to the work target when the work tool is pressed against the work target based on sensor values acquired with the second sensor.

Abstract: A temperature measuring device and a temperature measuring method are provided. The temperature measuring device includes a processing module, a first image capturing module and a second image capturing module. The processing module calculates a second reference area, a third temperature measuring area and a fourth temperature measuring area of a second image information according to a first reference area, a first temperature measuring area and a second temperature measuring area of a first image information, respectively. The processing module obtains a first detected temperature value of a test subject in the third temperature measuring area.

Abstract: A microprobe is provided that includes a microsphere optical resonator operatively coupled to a nanoscatterer. The microsphere optical resonator includes a back surface and a front surface opposite the front surface. The front surface is configured to receive a focused laser beam, and the nanoscatterer is positioned adjacent to the back surface.

Abstract: A sensor device for measuring a physical quantity. The sensor device includes a sensor element having a semiconductor chip, a first terminal electrically connected to the sensor element, and a housing portion having a terminal, which is a second terminal and is electrically connected to the first terminal. The second terminal has a through-hole formed therein, the through-hole having a first end and a second end opposite to each other, an inner surface of the through hole at the first end being an R-surface that is a curved surface with a radius R. The first terminal is housed in the housing portion, and has one end thereof inserted in the through-hole from the first end of the through-hole.

Abstract: An LADCP and combined inertial navigation system combined observation system and method. The system includes an LADCP, combined inertial navigation system host, data processing unit, wireless transmission module, voltage-resistant wireless antenna, battery cabin, first and second GNSS antennae and an instrument support. The data processing unit is connected to the LADCP and the system host through serial ports to obtain ocean current profile measurement data, a GNSS position, GNSS orientation data, three-axis acceleration data, a three-axis gyroscope angular velocity, a roll angle, a pitch angle and a course angular rate. Real-time high-precision correction is performed on a three-dimensional flow velocity of an ocean current profile observed by the LADCP based on the orientation data, roll angle, pitch angle and the course angular rate. Accordingly, measurement precision of flow velocity and flow direction by the LADCP is improved, and working costs to carry out profile flow observation are reduced.

Abstract: A MEMS sensor, including a substrate, and at least three functional layers, which are connected to the substrate on top of one another and spaced apart from one another. A first of the at least three functional layers is deflectably situated. A first electrode, which includes at least two areas being situated at the first functional layer. A first area of the first electrode together with a second electrode of a second of the at least three functional layers form a first capacitance, and a second area of the first electrode together with at least one area of a third electrode of a third functional layer form a second capacitance. The electrodes are situated in such a way that, upon a change in the distance of the electrodes of the first capacitance, a contrary change in the distance of the electrodes of the second capacitance takes place.

Abstract: An assembly for pressure testing of components, such as a valve of an HVAC system. The assembly includes a hand truck, a tank and a housing mounted on the base of the hand truck. A control unit is encased within the housing and coupled to a solenoid, wherein the solenoid is coupled to a valve. The valve connects a pressure regulator of the tank to the component. The control unit can receive instruction from an external device at a safe distance from the assembly, and upon receiving the instruction, the control unit can actuate the solenoid to open the valve.

Abstract: A core body thermometer that includes a wiring substrate on which a power supply switch and electronic components are mounted. The power supply switch is housed so as to face a back surface of an upper exterior body in a space formed by the upper exterior body and a lower exterior body. Moreover, a lining member is formed in a thin plate shape and disposed on the back surface of the upper exterior body, and a buffer member is disposed between the wiring substrate and the lining member. The lining member has a through-hole in which the power supply switch is placed in an inner side in a thickness direction when viewed in a plan view, and has flexibility in an operation direction of the power supply switch).