Abstract: Disclosed are embodiments of hydrocarbon leak detection cables that utilize time domain reflectometry to indicate the location of changes in impedance in a hydrocarbon leak detection cable. In addition, an embodiment of a hydrocarbon leak detection optical fiber is disclosed.

Abstract: A device and method for testing bearing capacity of single-row grouped pillars in a horizontal goaf under biaxial loading is disclosed. Four fixed rings are arranged on testing machine base, and have stands installed therein respectively, bottom ends of the stands are connected with the base, top ends are connected with transverse frame, sliding rails are arranged on two sides of the base; the vertical force loading devices are arranged at a lower part of transverse frame and the horizontal force loading devices are arranged at inner sides of side frame. Simultaneous loading on multiple coal samples, rock samples, filling body samples, concrete samples, coal-filling samples and/or rock-filling samples can be achieved, the overall bearing capacity of a single-row group pillar system in the horizontal goaf under the biaxial compression condition can be obtained, and the mutual influence relation between grouped pillar individuals in the horizontal goaf can be attained.

Abstract: An arrangement for monitoring an antifriction bearing of a rotating shaft of a rotating electric machine. The arrangement includes: one or more capacitor electrodes to measure a capacitive shaft displacement parameter; one or more of the following additional measurement sensors; a microphone to measure a bearing noise parameter, a voltage sensor to measure a bearing current parameter, and/or an optical pyrometer to measure a shaft heat parameter; and one or more processors configured to evaluate a condition of the antifriction bearing based on the capacitive shaft displacement parameter and one or more of the following: the bearing noise parameter, the bearing current parameter, and/or the shaft heat parameter.

Abstract: In some examples, a device includes a body configured to receive an elongated medical device, and a conductive element configured to contact a touchscreen of a computing device. An amount of contact between the conductive element and the touchscreen varies based on the compressive force applied to the elongated medical device when the elongated medical device is received within the body.

Abstract: A system and method is provided for detecting fluid low-volume and occlusion in a device using force sensing resistor (FSR) sensor. One or more force sensing resistors are positioned in communication with a fluid channel at one or more of a pump intake and pump outlet to detect pressure in the fluid channel. The pressure is detected through communication with the force sensing resistor and indicates an irregular system condition including but not limited to, fluid low-volume level and occlusion. Also provided are a fluid flow sensor (e.g., FSR or MEMS sensor) disposed relative to an embedded fluid channel in the base of a wearable medicine delivery pump.

Abstract: An apparatus for forming an anchor to connect a fiber to an explosive charge wall includes an anchor insert tab disposed on the interior side of the wall, a top plate disposed on the exterior side of the wall, an ST connector disposed on the exterior side and attached to the top plate to position the ST connector at the fiber insert wall opening for receiving the fiber, a plurality of zip ties extending through the anchor insert tab, the wall, and the top plate, and a plurality of locking members one for each of the zip ties. The zip ties each have a locking head disposed on the interior side of the wall to press the anchor insert tab against the interior wall surface. The locking members are engaged with the zip ties to press the top plate against the exterior wall surface to form the anchor.

Abstract: A door handle includes a handle body with an external surface, an internal portion, and a mounting feature configured to couple the handle body to a door. The door handle also includes a force sensing element disposed in the internal portion of the handle body. The first force sensing element is configured to measure a force applied to the external surface of the door handle. The door handle further includes a communication element coupled to the force sensing element. The force measured by the force sensing element is used to determine an output function.

Abstract: A method for determining a fluid pressure parameter related to a fluid located within a fluid conduit, the method may include measuring one or more resistances of one or more nanoparticle based sensing elements to provide sensed information; wherein the one or more nanoparticle based sensing elements comprise nanometric particles having an electrical resistance that is responsive to at least one out of pressure and temperature; wherein the one or more nanoparticle based sensing elements are printed between conductive electrodes, wherein the conductive electrodes are either printed on an exterior of the fluid conduit or are formed on a substrate that is attached to the exterior of the fluid conduit; and determining, based on the sensed information, the fluid pressure parameter.

Abstract: A system includes a flow line connected to a fluid and a suction line in fluid communication with the flow line, wherein the fluid is to carry cuttings from a borehole. The system also includes a flow line pump to move fluid via the suction line onto a surface of a cuttings separation conveyor, wherein the surface of the cuttings separation conveyor comprises a separation screen. The system also includes a cuttings container positioned to collect a portion of the cuttings from the separation conveyor.

Abstract: A strain monitor (1) for attachment to part of a submerged structure (100), the strain monitor comprises: a main body (5), the main body comprising an attachment assembly which is arranged to secure the strain monitor to the submerged structure, a plurality of strain gauge assemblies (3), carried by the main body, arranged in a spaced apart relationship, each strain gauge assembly comprising a strain gauge and a carrier (6), and the strain gauge attached to the carrier, and the strain gauge assembly arranged to selectively adopt a stowed condition and a deployed condition.

Abstract: A flow field measurement device and a method for a scale model of a natural gas hydrate reservoir are provided. The measurement device includes non-central vertical well pressure sensors, non-central vertical well outlet valves, communicating vessel valves, differential pressure sensors, a communicating vessel, a central vertical well outlet valve, and a central vertical well pressure sensor. By providing differential pressure sensors, between a measuring point of the central vertical well and a measuring point of each of the non-central vertical wells, to measure pressure differences, the flow field measurement device enables a reasonable distribution of a three-dimensional space inside the reactor to analyze gas-liquid flow trends in the reactor with a simulated flow field. Determining whether to turn on the differential pressure sensors according to a predetermination based on a feedback from the pressure sensors, allows flow field measurements in the reactor under both high and low pressure differences.

Abstract: A speed measuring device for a wheel hub assembly equipped with a rolling bearing. The measuring device having an encoder wheel mounted on a rotating ring of the bearing, a mechanical support disposed between the encoder wheel and the ring to cause the encoder wheel and the ring to be angularly fixed to one another, and a mechanical lock for axially locking the encoder wheel in a seat formed by the mechanical lock together with the mechanical support. The encoder wheel is equipped with a base structure made of plastic material mounted in a seat.

Abstract: A new multifunctional biomass suspension deflagration test-bed is provided, which includes a closed combustion chamber. An integrated temperature and pressure sensor is arranged in the combustion chamber, and a high-speed camera and a laser concentration-measuring instrument are arranged outside the combustion chamber, which can monitor suspension deflagration. A bottom of the combustion chamber is provided with a hollow mushroom-shaped dispersion nozzle with a tray. A nozzle body is provided with a gas main-flow channel at a center thereof and gas deflected-flow channels arranged around the gas main-flow channel. A mushroom-shaped baffle plate is arranged above the nozzle body. The gas main-flow channel extends upward to the mushroom-shaped baffle plate. A vent hole is formed in a portion of the mushroom-shaped baffle plate which is corresponding to the gas main-flow channel. Each gas deflected-flow channel is inclined outward from bottom to top and directed to the mushroom-shaped baffle plate.

Abstract: Techniques determine if a gas service (e.g., piping and/or meter) is undersized for the customer's needs. In one example, flowrate information corresponding to gas usage at a service site over a first period of time is obtained. The flowrate information is disaggregated to determine an expected flowrate associated with each of two or more appliances having generally fixed-rates of gas consumption. Flowrate information is again obtained, corresponding to a second period of time. The second flowrate information is compared to one or more combinations (i.e., summations) of the expected flowrates associated with each of the two or more appliances. Based on the comparison, it may be determined that the service site is not appropriately sized. In an example, failure to detect two fixed-rate of gas-consumption appliances operating at their respective fixed-rates at the same time may indicate that the service cannot provide gas at a sufficient flowrate.

Abstract: A sealing integrity evaluation device for high-temperature and high-pressure casing-cement ring-formation and a method thereof are provided. the device includes: a high-temperature autoclave, a temperature and pressure control system, and a casing-cement-formation combination; wherein the autoclave realizes alternating temperature and pressure during the experiment; the control system monitors, controls and records the temperature and pressure data; the combination simulates a full size or a compact size casing-cement-formation of a well.

Abstract: An accelerometer is included within the confined space and limited volume of a distal portion of a surgical instrument. The surgical instrument includes an end component, a joint coupled to the end component, a shaft coupled to the joint, and a force transducer and accelerometer apparatus. The force transducer and accelerometer apparatus is coupled between the joint and the shaft. The force transducer and accelerometer apparatus includes a force sensor and an accelerometer. The accelerometer includes an optic fiber having a Fiber Bragg Grating. Information acquired from the Fiber Bragg Grating is used to drive a vibro-tactile haptic feedback output device coupled to a master control arm surgeon grip.

Abstract: A test platform for an automatic flushing valve is described. It includes a fluid source, weighing parts, a bracket, a diverter and several driplines. The driplines are parallel to each other and are evenly arranged in an array in a circumferential direction of the diverter. Emitters are installed on each of the driplines; one end of each driplines is fixed to the diverter, which is connected to the fluid source to feed fluid into the driplines. The diverter is pivotally connected to the bracket, so that the diverter and the driplines can pivot relative to the bracket; the other end of each driplines is used to install automatic flushing valves. Weighing parts are installed below the automatic flushing valves to measure the solution flowing out of the automatic flushing valves, and other weighing parts are installed below the driplines to measure solution flowing out of the emitters.

Abstract: According to one embodiment, an inspection device includes a transmitter, a receiver, and a supporter. The transmitter is configured to transmit a first ultrasonic wave including burst waves having a first period Tp. The receiver on which the first ultrasonic wave is incident is configured to output a signal corresponding to the incident first ultrasonic wave. The supporter is provided between the transmitter and the receiver. The supporter is configured to support an inspection object. The first period Tp (s), a distance Dx (m), and a velocity vx (m/s) satisfy 2Dx/((n+1)·vx)<Tp<2Dx/(n·vx). n is 1 or 2. The distance Dx is a shorter distance of first and second distances. The first distance is a distance along a first direction between the transmitter and the supporter. The second distance is a distance along the first direction between the supporter and the receiver.

Abstract: A scale and scanner system includes a controller to control operation of the scale and scanner system. A scale calibration parameter memory for storing scale calibration parameters is coupleable to the controller. A scanning module and a scale module are coupleable to the controller. When the controller is not coupled to the scanning module or scale module, the scale calibration parameter memory remains in the system.

Abstract: A system features an acoustic sensor configured to mount on a wall of a mixing drum, sense an acoustic characteristic of a mixture of a slurry, including concrete, contained in a mixing drum when rotating, and provide acoustic sensor signaling containing information about the acoustic characteristic sensed; and a signal processor configured to receive the acoustic sensor signaling, and determine corresponding signaling containing information about a slump characteristic of the mixture of concrete contained in the mixing drum, based upon the signaling received.