Abstract: The invention relates to a rheometer comprising of a container for receiving a material sample to be investigated, a shaft with a rotating body which is immersed into the material sample, and a container lid that moves in the axial direction of the shaft into the sample container to deliver consolidating stress to the material sample. The forces acting on the material sample due to the rotation of the rotating body and the motion of the container lid and the location of the sample lid are measured as consolidating stress and rotational strain are applied and removed from the material sample.

Abstract: A structural health monitoring system is provided comprising sensors and/or sensor modules attached to, or near to, one or more parts or regions of a structure that detect and measure data regarding physical or related features or phenomena associated with the structure before, during and after a load or other event impacting or otherwise affecting the structure. The sensor modules measure and convert the detected phenomena into digital data and transmit the data to a master station for data compilation, storage and analysis. The master station is configured to produce analytic work product based on sensed phenomena which is useful for assisting inspectors in determining what action to take with respect to a structure's health after an event.

Abstract: A motorized rolling maintenance cart that utilizes the angled trailing edge geometry of an airfoil-shaped body (such as a wind turbine blade or rotor blade) to traverse the length of the airfoil-shaped body. The trailing edge-following maintenance cart may be used to carry personnel doing maintenance activities on the blades, such as local repairs or re-painting. In accordance with one aspect, the maintenance cart carries non-destructive inspection sensor units or other maintenance hardware over the surface of the airfoil-shaped body (e.g., in a spanwise direction). In accordance with another aspect, the trailing edge-following maintenance cart is configured to also provide fall protection to one or more independently movable crawler vehicles by means of cables. Alternative embodiments may include only one of the two aspects.

Abstract: An apparatus for performing a well test operation includes a tubular member having a surge chamber and a valve that can control fluid flow from a well into the surge chamber during the well test operation. The apparatus can also include a flow control device, in addition to the valve, for further controlling fluid flow into the surge chamber from the well. Flow rate and pressure data can be measured during the well test operation and used to estimate reservoir properties. Various other systems, devices, and methods are also disclosed.

Abstract: A composite sensor for sensing gas and dust by using a single heat source, according to an embodiment of the present invention, can comprise: a base; a gas sensor module comprising a gas sensor and a first light source in a first space; a dust sensor module comprising a dust sensor, a lens, and a second light source in a second space; and a heat transfer wall for transferring heat generated by the first light source to the dust sensor module.

Abstract: A movement-synchronized wellbore inspection system and a movement-synchronization control method thereof are disclosed. The wellbore inspection system comprises a rope-climbing robot, a wire rope, a ground wire rope moving device, a ground wire rope moving track, an underground wire rope moving device, an underground wire rope moving track, an inertial sensor and a control device. An upper end of the wire rope is connected to the ground wire rope moving device, and an lower end of the wire rope passes through the rope-climbing robot and is then connected to the underground wire rope moving device. The control device controls the underground and ground wire rope moving devices to move in synchronization, and then the inertial sensor carried on the rope-climbing robot detects posture data of the wire rope and transmits the data to the control device.

Abstract: An air duct system for passing an air flow emanating from an air outlet to a measurement device for detecting parameter measurement values for at least one parameter of the air flow, includes at least one collecting unit for collecting the air flow emanating from the air outlet. That one collecting unit can be disposed on the air outlet so that a contact surface of the collecting unit encloses at least one outlet opening of the air outlet circumferentially. The collecting unit includes a wall defining a continuous air duct with an inlet end section and an outlet end section.

Abstract: A pressure sensing package includes a sensor chamber and an annular chamber extending about the sensor chamber. A primary diaphragm divides the sensor chamber into a first part receiving a first pressure and a second part including a differential pressure sensor approximately centered with respect to a sensor axis and a first transmission fluid. The first transmission fluid transmits the first pressure to a first differential pressure sensor face. A secondary diaphragm divides the annular chamber into a first part receiving a second pressure and a second part including a second transmission fluid. The second pressure is transmitted to a second pressure sensor face via the secondary diaphragm and the second transmission fluid. The primary and secondary diaphragms are positioned with respect to one another along the sensor axis direction such that pressures other than the first and second pressures acting on the pressure sensor sum to approximately zero.

Abstract: A core sample with carbonate veins is obtained from a well formed in the hydrocarbon reservoir. Formation water samples are obtained from the well. Mineralogy of carbonate in the carbonate veins is analyzed. An oxygen isotope ratio between oxygen isotopes in the formation water and an oxygen isotope ratio between oxygen isotopes in the carbonates are determined. A formation paleo-temperature value is determined based on the determined oxygen isotope ratio using a model that relates the formation paleo-temperature value and the oxygen isotope ratio.

Abstract: A room temperature nitrogen dioxide gas sensor comprising tin(IV) oxide decorated with gold nanoparticles is described. The tin(IV) oxide may have an average layer thickness of 10-1,000 nm, and is topped with dispersed gold nanoparticles having an average longest dimension of 200-650 nm. The room temperature nitrogen dioxide gas sensor may be used to detect and measure levels of nitrogen dioxide gas at room temperature and at concentrations of 100 ppb-1800 ppm, with a high stability. A method of making the room temperature nitrogen dioxide sensor is also described, and involves sputtering to deposit a tin(IV) oxide layer and a gold layer on a substrate, followed by annealing.

Abstract: According to at least one aspect, a monolithic sensor mount can include a first cylindrical portion and a second cylindrical portion. The first cylindrical portion can have a first diameter and the second cylindrical portion can have a second diameter larger than the first diameter. The second cylindrical portion defining a recess region to host an ultrasonic transducer. The second cylindrical portion can have an outer surface that defines a male thread to mechanically engage a female thread of a cavity within a fluid flow tube configured to host the sensor mount.

Abstract: Provided is a dust measurement apparatus for accurately measuring the dust concentration of two spaces and minimizing the possibility of noise generation, comprising: a dust sensor; a body housing having the dust sensor loaded therein, and having an inner space; a first outer hole and a second outer hole, which are respectively formed at two points of the body housing so as to connect the outside and the inner space; a first fan and a second fan, which are provided at the positions corresponding to each of the first outer hole and the second outer hole and driven so as to form a flow toward the inner space from the outside; and a control part for selectively driving the first fan or the second fan.

Abstract: An electronic scale calibrating method for an electronic scale is provided. The electronic scale includes a weighing pan, a memory unit, a first weight sensor and a second weight sensor. The weighing pan has a placement region. The first weight sensor and the second weight sensor are symmetric with respect to the placement region. Firstly, two standard samples are placed in the placement region simultaneously. Then, the first weight sensor and the second weight sensor sense the two standard samples to obtain a first read value and a second read value, respectively. Then, a first parameter, a second parameter, a first calibration coefficient and a second calibration coefficient are defined according to the first read value and the second read value. Then, a calibration formula is generated and stored in the memory unit.

Abstract: An inspection substrate for inspecting a component of an apparatus for processing production substrates, the inspection substrate having: a body having dimensions similar to the production substrates so that the inspection substrate is compatible with the apparatus; a sensor configured to generate inspection information relating to a parameter of the component of the apparatus, the sensor embedded in the body; a control detector embedded in the body and configured to detect a control signal transmitted by the apparatus for processing production substrates; and a controller embedded in the body and configured to control the sensor in response to detection of the control signal.

Abstract: The present invention comprises a test for evaluating spontaneous hydraulic fracturing fluid imbibition and oil displacement method and apparatus utilizing a composite core with a pressurized Amott cell test.

Abstract: A level sensing apparatus (110) for attachment to a sounding tube to measure levels of content in a tank. The level sensing apparatus includes a housing (16) for enclosing components of the level sensing apparatus (20). These components include a transmitter and an antenna (18) operatively connected to the transmitter for directing electrical or mechanical waves in a direction away from the transmitter. The antenna is adapted to also receive electrical and mechanical waves. The apparatus further includes a sounding tube adaptor (32) sized for attachment to a sounding tube, and a connector assembly operatively attaching the housing to the sounding tube adaptor. The connector assembly enabling the housing to rotate relative to the sounding tube adaptor about a horizontal axis to expose an open end of the sounding tube. In use, the level sensing apparatus allows for pulse radar measurement of liquid levels in the tank.

Abstract: A display device displays displacement of a bridge serving as a structure on a display part in the form of image information that is visually recognizable, based on a displacement amount of the bridge, the displacement amount having been calculated based on an output signal output from an acceleration detector serving as a physical quantity sensor provided on the bridge.

Abstract: Embodiments of the invention are directed to an integrated sensing system that includes a movable orientation device configured to dynamically position the movable orientation device based on receiving an air-flow. A gas sensor is coupled to the movable orientation device. The gas sensor includes a recognition element configured to detect a chemical in a plume. The movable orientation device is configured to perform a synchronized sensing operation that includes, based at least in part on the movable orientation device receiving the air-flow, moving the movable orientation device to dynamically maintain a predetermined orientation of the movable orientation device relative to a direction of the air-flow. The predetermined orientation includes positioning the gas sensor in a path of the air-flow, wherein the air-flow is influencing the plume to move along the path such that the recognition element is exposed to the plume.

Abstract: In one or more embodiments, a system for predicting health of a hydraulic pump comprises a reservoir tank temperature sensor to measure a temperature of a reservoir tank. The system further comprises a hydraulic pump temperature sensor to measure a temperature of the hydraulic pump. Also, the system comprises a differential pressure sensor to measure a differential pressure across a filter associated with the hydraulic pump.

Abstract: A physical quantity sensor includes: a movable body that includes a beam, a coupling portion that is connected with the beam and is provided in a direction intersecting with the beam, and a first and second mass portions that are connected with the coupling portion at connection positions; a first and second fixed electrodes are opposed to the first and second mass portions; and a protrusion are provided and protrude toward the first and second mass portions. In the intersecting direction, in a case where a distance from connection positions to end portions of the first and second mass portions opposite to the beam is L, and a distance from the protrusions to end portions of the first and second mass portions opposite to the beam is L1, the distance L1 is 0.5 L or longer and 3.1 L or shorter.