Abstract: The present invention relates to a deep rock in situ environment reconstruction and integrated three-dimensional mechanical-thermo-acousto-seismic-flow testing method, which comprises: preparing a cubic sample; placing the cubic sample in a sample holder; extending the 6 indenters to butt with the sample holder; butting 6 butting indenters with the 6 indenters; butting each of 6 hydraulic actuators with one of the butting indenters, performing stress loading on the cubic sample by the hydraulic actuator, filling a fluid medium into the cubic sample by a percolation medium channel, and dynamically measuring related parameters. The present application can achieve three-way multi-parameter synchronous monitoring and acquisition of deformation, acoustic emission, ultrasonic wave, temperature field, percolation field and heat flow field.

Abstract: A method and sensor system for monitoring in time a geometric property of a gasket (32, 34) that sealingly interconnects two structural members (20, 21) of a subterraneous or immersed tunnel (10). The system includes a sensor (42) for measuring position indications for surface portions (48) of the gasket relative to a reference (26, 27, 47) associated with one or both structural members, and a processor (44) that is coupled with the sensor to receive the position indications. The processor is configured to derive indications of displacement (?Y) for each of the gasket surface portions based on the measured indications of position, to compare the indications of displacement for each of the gasket surface portions with at least one threshold value (Ty), and to generate a warning message for an operator if at least one of the indications of displacement transgresses the at least one threshold value.

Abstract: A blade tip measurement system includes a case and a blade that rotates within the case, the blade having an outer blade tip surface that has a clearance distance from an inner surface of the case. A light source emits light along an optical path that is directed toward the outer blade tip surface by a lens, and the outer blade tip surface reflects the light back along the optical path. An optical interferometer generates an interference pattern using the reflected light, and a photoreceiver receives the interference pattern. A complex logic device determines the clearance distance of the blade tip surface from the inner surface of the case based on the interference pattern. The interferometer may be a Fabry-Perot optical interferometer formed using a window positioned between the lens and the blade tip surface, or a Michelson interferometer formed using a reference optical path. The system may alternatively include an optical time of flight measurement of the blade tip clearance.

Abstract: A mobile device (10) for measuring out at least one ingredient associated with a predetermined mass comprising: means (105) for guiding into position opposite at least one reservoir comprising an ingredient to be measured out, means (110) for reading an identifier of an ingredient on the reservoir comprising said ingredient, motorized means (115) for delivering the ingredient to be measured out from the reservoir, means (120) for acquiring a mass measurement of the ingredient, control means (125), configured to activate the motorized means when the reservoir of the ingredient to be measured out is identified by the means for reading an identifier and the device is positioned opposite the reservoir, until the mass of the ingredient acquired by the acquisition means is equal to the predetermined mass for the ingredient.

Abstract: The invention relates to a method for determining the direction and the amplitude of a force applied to a system (IO) comprising a stationary portion (13) and a mobile portion (12) which can deform when exposed to said force. Mechanical deformations applied to the mobile portion when exposed to said force are measured by measuring a distance between the stationary portion and the mobile portion in the direction of application of the force, and the distance measurements are processed in order to determine the amplitude and the direction of the force.

Abstract: A sensing assembly includes a magnet assembly configured to be coupled to a first component and a pair of hall-effect sensors configured to be coupled to a second component. The pair of hall-effect sensors are configured to generate substantially identical signal changes in response to a first relative motion in a first direction between the magnet assembly and the pair of hall-effect sensors, and to generate substantially equal but opposite signal changes in response to a second relative motion in a second direction between the magnet assembly and the pair of sensors. The first direction is perpendicular to the second direction.

Abstract: The auto-sampler for chromatographs includes a sampling needle, a pipe, a pump portion, and a connecting mechanism configured to connect the sampling needle and the pipe. The connecting mechanism includes a first component fixed to the sampling needle, a second component fixed to the pipe, a fixing component, and a packing. The fixing component fixes the first component and the second component using screwing of screws while the end surface of the sampling needle and the end surface of the pipe are in contact with the packing. As a result, dead volume at the connecting portion between the sampling needle and the pipe is reduced.

Abstract: A method for determining an axle load on a vehicle axle of a tractor includes providing a power lift and a payload coupled thereto, driving the power lift by a hydraulic pump, setting a pump pressure of the hydraulic pump as a function of the coupled payload, detecting the pump pressure by a sensor, and determining the axle load as a function of the detected pump pressure from characteristic data which represents a relationship between the pump pressure and the weight of the payload.

Abstract: A leak detection system including a sensor having a first state having a first condition when dry and a second condition when wet, and a second state adapted to monitor the operability of the sensor; a communication device operatively connected to the sensor; and an attachment element adapted to attach the leak detection system to a fluid component for monitoring fluid leakage.

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for payload estimation and fault detection using hitch integrated sensors. An example apparatus includes a pin orientation determiner to determine a first orientation of a first pin and a second orientation of a second pin, the first pin and the second pin disposed within a hitch and calculate a relative orientation of the first pin and the second pin based on the first orientation and the second orientation. The example apparatus further includes a hitch condition detector to determine if a physical change has occurred in the hitch by comparing the relative orientation to an installation orientation of the first pin and the second pin.

Abstract: A method and test apparatus determines a volume of a droplet of liquid. The test apparatus deposits a drop of liquid to be measured on a surface that provides a known contact angle with the liquid under the deposition conditions used, thereby establishing one of: (i) an advancing, (ii) a receding, and (iii) an intermediate contact angle. The test apparatus images the drop. The test apparatus measures a dimension of height or diameter of the drop. In one embodiment, the test apparatus calculates a volume of the drop of liquid from the relationship of the contact angle to one or more parameters selected from the maximum height, the diameter of the contact patch, the radius of curvature, or the cross sectional area of the drop.

Abstract: A system for determining the temperature of a supercritical fluid that involves determining the speed of sound in the supercritical fluid.

Abstract: Disclosed are a sensor including a first metal layer and a second metal layer facing each other, and a volume changeable layer disposed between the first metal layer and the second metal layer and capable of absorbing a material to change the thickness thereof, wherein at least one of the first metal layer and the second metal layer is a semi-transmissive layer and the sensor indicates a color change by changing a resonance wavelength of light transmitted through the semi-transmissive layer according to a change in thickness of the volume changeable layer, and a sensor device, an electronic device, a smart window, and an IoT system including the same.

Abstract: A method of introducing a sample into a separation column includes introducing the sample into a trap column, isolating the trap column from ambient atmosphere and pressurizing the trap column to a first pressure while the trap column is isolated from ambient atmosphere, providing a fluid connection between the trap column and the separation column after pressurizing the trap column to the first pressure, supplying the sample from the trap column to the separation column.

Abstract: The present disclosure relates to a method of detecting crack propagation in a wall of a metallurgical furnace by a detection unit. The detection unit is configured to extract one or more dominant frequency parameters from the corresponding reflected stress signal, and analysing, a phase from each dominant frequency parameters. The analysing of the phase comprises determines, one or more coefficients for each dominant frequency parameters. The detection unit then identifies, a dominant phase based on the corresponding one or more coefficients and selects a frequency relevant to a thickness parameter based on the dominant phase. The crack propagation in the wall of the metallurgical furnace is then detected based on the frequency relevant to the thickness parameter at each of the one or more locations. The present disclosure provides an accurate method for determining condition of refractory lining by elimination unwanted noise signals.

Abstract: A membrane defect inspection method that can detect damage in a filtrate membrane and can detect presence or absence of damage or a seal defect in a membrane module; and the method is for a membrane module set including multiple membrane modules connected under gas detection piping communicating with primary spaces of the multiple membrane modules where raw water is supplied or secondary spaces in multiple membrane modules where treated water is extracted after the raw water is filtrated by membranes. The method includes a gas injection process where gas is injected into spaces opposite the primary or secondary spaces communicating with gas detection piping in the multiple membrane modules while the gas detection piping is filled with water, and a vibration detection process where a vibration sensor is brought into contact with a protrusion protruding outward from the gas detection piping to detect vibration of the gas detection piping.

Abstract: A filtering device is provided to an analyzing instrument to block the passage of oversized particles that may otherwise clog the aperture of a sample analyzing device. The filtering device can be arranged to be proximate to the mixing chamber. In certain examples, the filtering device is placed at or adjacent an output port of the mixing chamber.

Abstract: Provided are a device for measuring the amount of snowfall and a method of controlling the same, the device including a bottom plate, a graduated ruler extending upward from the bottom plate, an image capturing unit configured to capture an image of the graduated ruler and an upper portion of snow deposited on the bottom plate by using an image capturing device, a measurement unit configured to measure the amount of snowfall based on information on the captured image, and a movement unit configured to move the device for measuring the amount of snowfall so that a position of the bottom plate moves from a first position to a second position.

Abstract: The present disclosure relates to methodologies, systems and apparatus for cooling pump heads and providing balanced cooling and heat transfer between multiple pump heads. Multi-pump systems that are used to pump fluids that vary greatly in density with minor changes in temperature, such as the mobile phase of a C02-based chromatography system, require highly stable temperature conditions. In order to achieve a substantially equal average heat transfer between multiple pump heads and a coolant fluid, coolant fluid may be flowed through coolant passageways within the pump heads in a recursive and/or parallel coolant flow patterns. Such recursive and/or parallel coolant fluid flow patterns provide increased stability in temperature, compressibility, and density of the fluids passing through a multi-pump system.

Abstract: Embodiments of the present disclosure provide a multi-physical field imaging method based on PET-CT and DAS, comprising: wrapping distributed acoustic sensors on a surface of a non-metallic sample to be tested, and then placing them in a pressure device; loading triaxial pressures; preparing a tracer fluid; pumping the tracer fluid into the non-metallic sample; collecting PET images and CT images of internal structure of the non-metallic sample, meanwhile, monitoring internal acoustic emission events of the non-metallic sample in real time; combining the PET images with the CT images, to obtain PET/CT images; locating the acoustic emission events, and obtaining occurrence time and spatial location of internal structural perturbations; and analyzing a mechanism of fluid-solid coupling effect in the non-metallic sample under loaded stress. The imaging method and system of the present disclosure can accurately and reliably image the fluid-solid coupling process in the material.