Abstract: A pressure measuring cell or flow rate measuring cell includes a pipe piece in which either a membrane to which a pressure that is to be measured is applied or an orifice plate is arranged in the cross-section through which a fluid flows, wherein the membrane or orifice plate and the pipe piece are formed together and interconnected via a solid-body joint, where a sensor is arranged outside the pipe piece near the solid-body joint or is accessible from this side, a tubular carrier part diverts forces past the solid-body joint when the pressure or flow rate measurement cell is being installed, and where the tubular carrier part has an inner diameter that is greater than the outer diameter of the pipe piece and has a wall in its cross section with a central circular opening, into which the pipe piece shortened to the thickness of the wall is inserted.

Abstract: A cartridge-style flow sensor for sensing fluid flow. The includes an exterior, interior, head, base, a circuit board, and first and second ports. The first and second ports permit fluid to flow into and out of the interior. A Hall Effect Sensor in the interior detects the number of revolutions of an impeller. An electric coupler interfaces with the sensor and a transmitter for communication of the revolutions of the impeller to a controller. The controller determines the rate of fluid flow in a conduit. The controller automatically issues a command signal to a component of a hydraulic system to alter the rate of fluid flow in the conduit. The cartridge hydraulic flow sensor is easily and releasably engaged to a cavity of a hydraulic circuit manifold.

Abstract: A pressure sensing mat including a first conductive layer, a second conductive layer, and an insulative layer disposed therebetween. The first conductive layer includes a first plurality of spaced apart conductive paths and a first plurality of non-conductive paths therebetween and defining a plurality of gaps in the first plurality of non-conductive paths having a first repeating pattern of a cross shape. The first plurality of spaced apart conductive paths and the first plurality of non-conductive paths extend in a first direction. The second conductive layer includes a second plurality of spaced apart conductive paths and a second plurality of non-conductive paths therebetween and defining a second plurality of gaps in the second plurality of non-conductive paths having a second repeating pattern. The second plurality of spaced apart conductive paths and the second plurality of non-conductive paths extends in a second direction different than the first direction.

Abstract: The present disclosure provides a heat transfer limit experimental device of a high-temperature heat pipe equipped with a convenient temperature measurement box and a method based on the heat transfer limit experimental device. The heat transfer limit experimental device includes a high-temperature heat pipe, an electric heating system, a convenient temperature measurement box, a control system, a gas-cooled heat exchange system, and a data acquisition system. The electric heating system is connected to the high-temperature heat pipe. The convenient temperature measurement box is connected to the gas-cooled heat exchange system. The data acquisition system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system. The control system is connected to the gas-cooled heat exchange system, the convenient temperature measurement box, and the electric heating system.

Abstract: A method for testing a rotor blade of a wind turbine may include predefining a setpoint bending moment distribution. At least two active load-introducing means may be provided which each engage on a load frame. A first of the at least two active load-introducing means may be configured for introducing load in a pivot direction of the rotor blade and a second of the at least two active load-introducing means may be configured for introducing load in an impact direction of the rotor blade. Also provided is at least one passive load-introducing means. A cyclic introduction of load is effected by the at least two active load-introducing means, where a load introduction frequency of the first active load-introducing means and a load introduction frequency of the second active load-introducing means are selected such that the ratio thereof is rational. A testing device for carrying out the method is also provided.

Abstract: A sensor device including a deformable substrate and a plurality of sensing elements formed on or in the deformable substrate, each of the plurality of sensing elements including at least one of a plurality of strain sensitive lines radially extending with respect to a center of the sensor device and a plurality of strain sensitive lines extending along a circular section with respect to the center of the sensor device, and one or more electrically conducting vias formed in the deformable substrate for electrically connecting between one or more of the sensing elements formed on the first side of the deformable substrate and one or more of the sensing elements formed on the second side of the deformable substrate.

Abstract: Disclosed example material testing systems include: a material testing apparatus configured to receive an electrical supply, wherein the material testing apparatus comprises: guide means; sample holding means configured for holding a sample; force means configured for applying force to the sample; and a crosshead arranged to support at least a portion of one or both of the sample holding means and the force means, wherein the crosshead is moveable about the guide means; a three phase switched-mode power supply unit arranged to provide the electrical supply to the material testing apparatus; and one or more blocking means connected with a power output of the three phase switched-mode power supply unit, wherein the blocking means is arranged to prevent an electrical current at the power output of the three phase switched-mode power supply unit from flowing in a predetermined direction.

Abstract: Pressure sensors include stacking of sensor capacitors on top of reference capacitors. A pressure cavity may be extended below a bottom electrode. The pressure sensors may include a mechanical link of a top membrane with the bottom electrode in order to form a dual membrane, or a mechanical link of the top membrane, the bottom electrode and an intermediate electrode within a cavity. A pressure sensor includes a first and second pressure sensing portions, each including a first and second rigid electrodes, and a deflectable membrane structure. The second rigid electrode is between the first rigid electrode and the deflectable membrane structure arranged in a vertical configuration. The first and second rigid electrodes of the first and second pressure sensing portions form respective reference capacitors, and the second rigid electrodes and the deflectable membrane structures form respective sensing capacitors.

Abstract: A method and system for the wireless interrogation of a body immersed in a circulatory bath or a tank for heating. More specifically, the system may include a probe having multiple sensors for gauging a core temperature associated with the immersed body in combination with one or more wireless connections leading to a controller (on a circulator or a user interface) such that the user can determine temperature information (e.g., core temperature) of the body being immersed.

Abstract: A structure deterioration detection system includes an optical fiber cable that is placed along the longitudinal direction of a structure and continuously detects any vibration along the longitudinal direction of the structure, and a signal processing unit including a vibration measurement unit that measures the strength of a detected vibration, a per unit time integration unit that integrates the vibration strength for a specified period of time, an information storage unit that stores the integrated vibration strength, and a deterioration determination unit that makes a determination about whether deterioration of the structure has occurred by comparing the integrated vibration strengths at different times.

Abstract: A heat flux sensor, comprising: a ceramic heat sink; a sensitive element made of a single-crystal material and fixed to the ceramic heat sink through a thermally conductive and electrically insulative adhesive; a heat absorption layer arranged on an upper surface of the sensitive element; a first metal electrode and a second metal electrode arranged on the upper surface of the sensitive element; a third metal electrode arranged on the upper surface of the sensitive element; a fourth metal electrode arranged on a lower surface of the sensitive element; and a fifth metal electrode arranged on an upper surface of the ceramic heat sink; wherein a voltage signal between the first metal electrode and the second metal element is a transverse voltage Ux, and a voltage signal between the third metal electrode and the fourth metal electrode is a longitudinal voltage Uz.

Abstract: Described is a compression apparatus for a testing system having a load cell. The disclosed compression apparatus ensures proper seating relative to the load cell to yield accurate compression friction (CF) measurements. The disclosed compression apparatus includes a compression rod and at least one mechanical fastener. The compression rod has a first portion at a distal end and a second portion that defines a threaded bore at a proximal end. The first portion is configured to contact a specimen and the second portion is configured to couple to the load cell. The mechanical fastener is configured to mate with the threaded bore.

Abstract: The present disclosure provides a linear motor including: a housing body with a containment space; a vibrator assembly suspended in the containment space by an elastic member for vibrating along a vibration direction; a stator assembly fixedly connected to the housing body and having a magnetic axis along the vibration direction; and two magnets located on both sides of the magnetic axis and spaced from the stator assembly, including a first magnet section and a second magnet section located on both sides of the first magnet section. A magnetic field strength of the first magnet section along the magnetic axis is greater than a magnetic field strength of the second magnet section along the magnetic axis. The configuration of the invention can effectively reduce the static attraction force of the magnetic circuit, and increase the overall rigidity of the linear motor.

Abstract: A gas separation system includes a separation column for separating components contained in sample gas, a sample gas supplier fluidly connected to an inlet of the separation column for supplying sample gas to the separation column, a detector fluidly connected to an outlet of the separation column, a collection tube filled with an adsorbent having a property of adsorbing a target component in the sample gas under a condition of a first temperature or less and desorbing the adsorbed target component under a condition of a second temperature or more higher than the first temperature, a temperature adjuster for adjusting a temperature of the collection tube, a collection container for collecting the target component, and a switching mechanism for switching between a state in which the collection tube is connected to an outlet of the detector and a state in which the collection tube is connected to the collection container.

Abstract: A flexural-rigidity measuring apparatus includes an ultrasonic device including an oscillating unit that oscillates an ultrasonic wave toward a sheet and a receiving unit that receives the ultrasonic wave that has passed through the sheet, an electromagnetic induction device including an electromagnetic induction unit that generates electromagnetic induction with respect to a sheet, and a near-infrared spectroscopic device including a light-emitting unit that emits near-infrared light toward a sheet and a light-receiving unit that receives the near-infrared light that has passed through the sheet.

Abstract: The present disclosure discloses a deformation and control simulation test system for a tunnel engineering supporting structure, including a follow-up hoisting platform, actuators, a control system. It is horizontal structure. The follow-up hoisting platform reduces the friction caused by the weight of testing sample and facilitates experimental operations. Each actuator fixed on an annular box body reaction frame can move independently through a control system in form of force control or displacement control mode, and can achieve circumferential contraction loading through its gomphodont configuration. The hinged and curved design of the cushion blocks of actuators can adapt to the circumferential contraction deformation of a test sample and maintain a close fit with them during the loading process.

Abstract: A pipetting device is disclosed. The pipetting device can include a piston with a stepped profile. The piston can be inserted into a barrel and can have at least two seal elements. The pipetting device can operate in a low volume dispense mode and a high volume dispense mode. The pipetting device can allow for high volumes of liquids to be transferred and also provide for the ability to transfer low volumes of liquids with high precision and accuracy without the need for two or more separate pipettor devices.

Abstract: An elongate force sensor assembly for measuring a force applied in a force application direction and a method of manufacturing the assembly, the force sensor assembly including an extruded elongate force responsive beam element (EFRB) extending along a longitudinal axis which is generally perpendicular to the force application direction, the EFRB having a hollow and generally rectangular cross-section generally perpendicular to the longitudinal axis and being formed with a throughgoing longitudinal bore along the longitudinal axis, the throughgoing longitudinal bore being formed together with the EFRB and a strain engine extending along a transverse axis, generally perpendicular to both the force application direction and to the longitudinal axis; at least one strain gauge affixed to the EFRB, each strain gauge generating an output in response to the force, and a plurality of circuit elements operative to convert the output into a force indication, indicating a magnitude of the force.

Abstract: A distributed acoustic sensing (DAS) system based on random fiber lasing amplification (RFLA) and a Rayleigh scattering enhanced fiber (RSEF), and relates to the field of distributed optical fiber sensing. The system comprises a DAS demodulation unit, a high-order RFLA unit and a RSEF. The present disclosure adopt the high-order RFLA technology to replace the traditional high-order distributed Raman amplification technology, and it does not need to use a plurality of pumps with different wavelength, and only needs a high-order random fiber laser pump and a broadband reflector to provide feedback for cascaded random fiber lasings to perform distributed amplification on signal light. By using high-order RFLA combined with the RSEF, high-efficiency and low-threshold RFLA can be achieved, and the signal-to-noise ratio and performances of a DAS system can be further improved, which enables realization of long-distance and high-performance distributed acoustic sensing.

Abstract: A sample analysis substrate capable of holding a plurality of liquids. The sample analysis substrate has a microchannel structure for transferring a liquid through rotary motion, the sample analysis substrate including: a substrate body having a rotation axis; a first and a second container holding a first and a second liquid therein; a first and a second accommodating section accommodating the first and the second container; and a cap having a first and second projection and movably supported on the substrate body. As the cap moves, the first drive projection and the second drive projection move the first container and the second container with staggered timing, thereby releasing the first and the second liquid accommodated therein.