Abstract: The present disclosure relates to a force measuring device (1) comprising a spring module (2), and an electronic module (3), detachably mechanically connected to the spring module. The spring module comprises a test head (21) defining an outer surface of the device, a spring seat (23), and a spring (24) arranged between the test head and the spring seat, with a first end (24a) of the spring engaging the test head and a second end (24b) of the spring engaging the spring seat. The electronic module comprises a force sensor (31) arranged in physical contact with the spring seat.

Abstract: A contact detection device includes: an AC power supply switching between and applying first and second AC voltages to first and second electrode layers; a storage part storing an alternative quadrature component corresponding to a state in which a conductor is in contact with an electrostatic sensor; a quadrature component comparison part comparing between a first quadrature component extracted upon applying the first AC voltage to the second electrode layer and a second quadrature component extracted upon applying the second AC voltage to the second electrode layer; and a contact determination part that detects contact of a conductor based on the first quadrature component when the first quadrature component and the second quadrature component fall within a first quadrature error, and detects contact of a conductor based on the alternative quadrature component when the first quadrature component and the second quadrature component fall outside the first quadrature error.

Abstract: According to an aspect, a force sensor includes: a plurality of first electrodes that are arranged along a substrate; an elastic body that is in contact with the first electrodes; a second electrode that is in contact with the elastic body, the elastic body being interposed between the second electrode and the first electrodes; and a third electrode that is provided on the substrate side of the second electrode and configured to be electrically coupled to the second electrode. The elastic body includes a conductive particle that electrically couples the first electrodes and the second electrode when force is applied that causes the first electrodes and the second electrode to be approached. The third electrode has a continuous lattice shape that separates at least the first electrodes adjacent in one direction from each other.

Abstract: A sensor that includes: a piezoelectric film including an upper principal surface and a lower principal surface aligned in an up-down direction; a first electrode on the upper principal surface of the piezoelectric film; a second electrode on the lower principal surface of the piezoelectric film; and a first cured resin layer covering at least a part of the second electrode as viewed in the up-down direction.

Abstract: An electrical component having: a sensor cell; the sensor cell being configured to, firstly, detect a physical quantity and output an electrical measurement signal having at least three differentiable states based on the detected physical quantity and to, secondly, provide electrical energy when the physical quantity is applied.

Abstract: The present disclosure relates to the field of strain sensors, and specifically relates to a high-temperature thin-film strain sensor, including a substrate and a strain-sensitive grid. The strain-sensitive grid includes an indium tin oxide layer and a platinum layer, the indium tin oxide layer is deposited on the substrate, and the platinum layer is deposited on the indium tin oxide layer. The indium tin oxide layer contains 50% by mass of indium oxide and 50% by mass of tin oxide. The high-temperature thin-film strain sensor provided by the present disclosure can be used in an environment from room temperature to 500° C., and have extremely high sensitivity at a high temperature of 500° C. Unlike the conventional metal foil strain gauge with a thickness of several microns, the high-temperature thin-film strain grid has a thickness of 500 nm, which can better convey the strain of the measured object at high temperature.

Abstract: A cold-cast anchor stay cable containing fiber grating strain and an installation method are provided. The stay cable includes an anchor head structure, where one end of the anchor head structure is fixedly connected with an extension structure, one end of the extension structure away from the anchor head structure is fixedly connected with a cable body, and a plurality of steel strands are fixedly connected inside the anchor head structure, and the steel strands sequentially pass through the anchor head structure and the extension structure and are fixedly connected with one end of the cable body. A spot welding high-temperature grating sensor is fixedly connected to a side surface of a part of one of the steel strands located in the extension structure.

Abstract: A torque measurement system includes a first rotatable carrier structure and a second rotatable carrier structure mechanically coupled to a shaft; a first metamaterial track coupled to and configured to co-rotate with the first rotatable carrier structure; a second metamaterial track coupled to and configured to co-rotate with the second rotatable carrier structure; and a low-friction material arranged between the first and the second rotatable carrier structures. The first and the second metamaterial tracks are spaced apart by a predetermined distance and are mutually coupled to each other by a torque-dependent coupling. Responsive to a torque applied to the shaft, the first metamaterial track is configured to undergo a rotational shift relative to the second metamaterial track. The low-friction material provides a low-friction rotational shift between the first rotatable carrier structure and the second rotatable carrier structure such that the predetermined distance is constant during the rotational shift.

Abstract: A method includes disposing a wafer in a cup of a clamshell of an electroplating apparatus. The wafer is clamped using the cup and a cone of the clamshell. Pressure forces applied by the cone against the wafer are detected by pressure sensors. The pressure forces include a maximum pressure and a minimum pressure. Clamping the wafer is stopped when a difference between the maximum pressure and the minimum pressure is higher than a predetermined value.

Abstract: A micromechanical sensor system with a micromechanical structure and with a control and sensing device. The micromechanical sensor system is configured for repeatedly generating and outputting sensor measured values at a specified output data rate, and at an output of the micromechanical sensor system. During a first part of an output time interval, the control and sensing device realizes an energy-saving operating mode, and, for generating the sensor measured values, the micromechanical structure is controlled and/or its position or configuration is sensed by the control and sensing device during the output time interval. Temporally after the first part of the output time interval and as part of the measurement time interval, during a preparation or downtime interval, the generation of the sensor measured values is prepared. The duration of the preparation or downtime interval and/or the first part of the output time interval is changeable or adaptable.

Abstract: A method for imbalance detection of a wheel of a vehicle by providing a motor torque of a motor of a steering system of the vehicle, providing a position of a rotor of the motor, and detecting the imbalance of a wheel as a function of the motor torque and the rotor position. A vehicle. The method is performed by a vehicle and/or a device.

Abstract: It is disclosed herein a system for monitoring the integrity of a roof. The system comprises a plurality of monitoring devices. Each monitoring device may comprise at least one power supply, a sensor comprising at least one detection device, a shroud at the end of a conduit which is in sealed fluid communication with the inside of a roof assembly, a motivating source, a central processor, and a receiver.

Abstract: A physiological information measurement device includes a sensor connected to an airbag containing air, the sensor being configured to measure pressure received by the airbag from a subject, and a processor configured to process a measurement result of the sensor to obtain information on a dynamic pressure and a static pressure of the subject, and a detector configured to detect an abnormality in a path from the airbag to the sensor, based on a change in the dynamic pressure and/or the static pressure.

Abstract: A prefilled syringe testing system may include an interface configured to fluidly couple with the cavity of the prefilled sealed container. A prefilled syringe testing system may include a vacuum pump providing a predetermined negative pressure to the interface. A prefilled syringe testing system may include a pressure gauge coupled to the interface and providing a pressure measurement indicative of leakage from the cavity.

Abstract: Systems and methods are provided for detecting leaks in a hydraulic system. An example method can include retrieving from memory, current signatures for a plurality of components in a hydraulic system; monitoring current consumption of a hydraulic motor during operation of the motor; determining, based on a comparison of the current consumption and current signature of the motor, an abnormal operating condition of the motor; collecting, based on the determination of the abnormal condition of the motor, current consumption data from the remaining components of the plurality of components; comparing the collected current consumption data to the current signatures corresponding to each of the remaining components of the plurality of components; and identifying, based on the comparison of the collected current data and current signatures, an abnormal operating condition for at least one of the remaining components of the plurality of components.

Abstract: Different frequencies for steady state excitation of the structure may be tested by sweeping over an excitation frequency range. Partial measurements of the responses in the structure at different excitation frequencies may be used to select excitation frequencies, and the selected excitation frequencies may be used to inspect the structure.

Abstract: Various implementations disclosed herein include devices, systems, and methods that determine a lens characteristic of an attachable lens using reflections. In some implementations, a method can include producing a pattern of light using an arrangement of light sources. Then, reflections are detected in an image obtained via an image sensor, the reflections corresponding to light from each of a plurality of the light sources reflecting from a surface of an attachable lens. In some implementations, a lens characteristic of the attachable lens is determined based on the detected reflections and a 3D spatial relationship between the image sensor and the plurality of the light sources. In some implementations, the lens characteristic is a prescription, and content is provided at the electronic device based on the prescription, where the content is viewable through the attachable lens.

Abstract: An optical fiber characteristics measurement apparatus includes a first optical splitter that splits modulated light into pump light and reference light, a second optical splitter that causes the pump light to be incident on a fiber under test from one end and extracts Brillouin scattered light generated within the fiber under test, an adjuster that changes frequency of at least one of the reference light and pump light to a plurality of frequencies, and a calculator that measures characteristics of the fiber under test based on a second harmonic component among frequency components of a signal yielded by homodyne detection of interference light between the Brillouin scattered light and the reference light at each frequency, the second harmonic component having a frequency that is two times the modulation frequency of the modulated light.

Abstract: The present disclosure relates to chain monitoring systems and methods. In particular, the chain monitoring system is configured to mount onto a portion of a chain and measure one or more parameters associated with one or more characteristics of the chain. The measured parameters are processed by the chain monitoring system and/or transmitted to a remote system for analysis. The analysis may be used to determine a characteristic and/or change in the characteristic of the chain. In some examples, the characteristic is an elongation value associated with the chain, which can be transmitted to a networked system for analysis, display, and/or control. In some examples, a sensor can be employed to measure one or more characteristics of the chain. The sensor may include, but is not limited to, a strain gauge, an accelerometer, an optical, a sonic, and/or a magnetic sensor.

Abstract: A system and method for estimating remaining useful life of a bearing is provided. The method includes receiving, by a processing unit, operational data associated with the bearing from at least one source in real-time. Further, one or more failure modes associated with the bearing are determined based on one or more features associated with the operational data. Based on the one or more features, a best-suited virtual model corresponding to the bearing is identified from a plurality of virtual models. Each of the virtual models indicates a behavior of the bearing for a predefined set of conditions. Further, a remaining useful life of the bearing is computed based on the best-suited virtual model.

Abstract: An inspection method of inspecting a moving object includes: a first step giving an instruction to a moving object as an inspection target to drive the moving object so that an output relating to moving of the moving object becomes a predetermined target value; a second step measuring the output and acquiring a measured value using an inspection device on the moving object; a subsequent inspection step performing the first and second steps on the moving objects different from the moving object as the inspection target when a difference between the target and measured values is not within a predetermined first range; and a third step outputting information indicating an abnormality in the inspection device when the difference between the target and measured values is outside a predetermined second range in all the moving objects among the moving objects as a result of the subsequent inspection step.

Abstract: An inspection method for a moving object that can move by unmanned driving includes: a first step of giving an instruction to drive from a server to a moving object of an inspection target wherein an output value related to movement of the moving object is a predetermined target value; a second step of measuring the output value using an inspection device that inspects the moving object, and acquiring a measurement value; a maintenance information acquiring step of acquiring maintenance information related to a history of maintenance executed with respect to at least one target device of the server and the inspection device; and an abnormality specifying step of, when a difference between the target value and the measurement value is not within a predetermined reference range, specifying which one of the server, inspection device, and moving object of the inspection target has an abnormality using the maintenance information.

Abstract: A prediction method includes: measuring an actual shape of a rolling reference tire; acquiring a displacement profile as a change in the actual shape due to rolling; calculating displacement amounts of order components of first to Nth orders (N is an integer of 2 or more) in the displacement profile through fast Fourier transform; obtaining, as a quantitative index value, a reciprocal of a sum of displacement amounts of order components reflecting a change in the actual shape due to a sign of the standing wave phenomenon, and acquiring a correlation between a performance index value representing durability of the reference tire and the quantitative index value; and simulating rolling of the reference tire to estimate a virtual quantitative index value corresponding to the quantitative index value, and acquiring a correlation between the virtual quantitative index value and the quantitative index value.

Abstract: An emissions sampling apparatus for sampling from an exhaust stack of a maritime vessel to aid in regulator and efficiency monitoring of the maritime vessel. The emissions sampling apparatus including an exhaust sample intake apparatus mounted within the exhaust stack and connected to an emissions sensor apparatus mounted to the outer circumference of the exhaust stack.

Abstract: Presented are systems, methods, and devices for provisioning sample support, controlled liquid deposition, and/or desired sample thicknesses during cryo-electron microscopy processes. A sample support for a cryo-electron microscopy process includes a support grid with multiple grid faces. The grid may be substantially rigid, flat and circular, may have a diameter of between about 2.9 and 3.1 mm, and may have a thickness of about 10 to 25 ?m. A foil covers at least one of the grid faces and includes multiple foil regions that each has a distinct thickness. The foil may be a thin and flexible metal or carbon foil. At least one of the foil regions contains an array of through-holes. A boundary between the foil regions with distinct thicknesses forms a step edge that pins thereto a receding contact line of a liquid drop deposited on the foil.

Abstract: Control compensation methods and configurations for controlling actuators that are applying forces to a test article. The control compensation methods and configurations reduce force control tracking errors by the use of combined stroke feedforward and stroke feedback signals. These counteract errors caused by multi-actuator cross coupling and other challenging behaviors caused by various issues with the actuators.

Abstract: A device to standardize laboratory air-particle abrasion testing includes a specimen section and a handpiece section, each located on ends of a platform. The specimen section includes a specimen metal table, a specimen metal plate, a metal clamp, a clamp locknut, and a horizontal arm that connects the specimen metal table to the specimen metal plate. The clamp locknut tightens the metal clamp around a specimen, and the metal clamp holds the specimen on the specimen metal table. The handpiece section includes a vertical arm and an abrasion handpiece. The abrasion handpiece extends through an aperture in the vertical arm and an abrasion handpiece holding screw surrounds a circumference of the abrasion handpiece so that the abrasion handpiece is fixed longitudinally when extending through the aperture in the vertical arm.

Abstract: An apparatus for fluid measurement is disclosed. The apparatus includes a leaf cell sensor having one or more piezoelectric radial components connected to a circumferential component, a first electrode positioned on a distal face of at least one radial component, a second electrode positioned on a proximal face of the at least one radial component, a voltage source having a negative terminal and a positive terminal, the negative terminal being connected to the first electrode and the positive terminal being connected to the second electrode, an electric current measurement device connected to the first and second electrode to measure current flowing between the first and second electrode, and a processor of a computing device that determines, from the measured current, one or more properties of the fluid, where the voltage source couples electrical energy into the one or more piezoelectric radial components at multiple frequencies concurrently.

Abstract: A device for monitoring liquid includes an apparatus for measuring a parameter representative of the density of the liquid to be monitored. This measurement apparatus includes at least one floating structure, at least one member for determining the position of at least a part of the floating structure, and at least one transmitter for transmitting data. The device includes an enclosure accommodating the floating structure and a system for hanging the enclosure. The enclosure has a first end and extends from the first end in the direction of the opposite second end, forming a chamber delimited by a solid wall and a porous wall so as to form inside the chamber, in the manner of a diving bell, with a first space in which air is able to be trapped in the submerged state of the enclosure and a second space inside which the liquid to be monitored can circulate.

Abstract: In a first aspect the present invention relates to a system for continuous measurement of osmolarity in situ. Said system comprises phase-separated membrane enclosed compartment as the sensor in osmolarity; detection means: a processing unit, and, optionally, an output unit of absolute or relative osmolarity and/or osmolarity changes. Further, the use of the phase-separated membrane enclosed compartment, whereby the membrane is permeable to a solvent and non-permeable to the osmotically active substance for non-invasive osmolarity measurement in a liquid system is described. In addition, a method for determining osmolarity and/or osmolarity change in a system is provided including the phase-separated membrane enclosed compartment, whereby the membrane is a permeable to a solvent and non-permeable to the osmotically active substance.

Abstract: A particle characterization apparatus is disclosed comprising: a first light source; a second light source, a sample cell; a first detector and a second detector. The first light source is operable to illuminate a first region of a sample comprising dispersed particles within the sample cell with a first light beam along a first light beam axis so as to produce scattered light by interactions of the first light beam with the sample. The first detector is configured to detect the scattered light. The second light source is operable to illuminate a second region of the sample with a second light beam along a second light beam axis. The second detector is an imaging detector, configured to image the particles along an imaging axis using the second light beam. The first light beam axis is at an angle of at least 5 degrees to the second light beam axis.

Abstract: Provided herein are methods to characterize preparations of recombinant viral particles using analytical ultracentrifugation. Recombinant viral particles include recombinant adeno-associated viral particles, recombinant adenoviral particles, recombinant lentiviral particles and recombinant herpes simplex virus particles. Variant species of recombinant viral particles including empty capsids and recombinant viral particles with variant genomes (e.g., truncated genomes, aggregates, recombinants) can be identified and quantitated. The methods can be used to characterize preparations of recombinant viral particles regardless of the sequence of the recombinant viral genome or the serotype of the recombinant viral capsid.

Abstract: Methods and systems are disclosed. The methods may include determining a first sequence of permeabilities by subjecting a rock sample to a first sequence of confining stress, axial stress, pore pressure (CSASPP) triplets and determining a first rock parameter using the first sequence of permeabilities, the first sequence of CSASPP triplets, and a first permeability model. The methods may further include determining a second sequence of permeabilities by subjecting the rock sample to a second sequence of CSASPP triplets and determining a second rock parameter using the second sequence of permeabilities, the second sequence of CSASPP triplets, and the first permeability model. The method may still further include determining an in situ permeability for an in situ rock based on an initial permeability, a second stress sensitivity parameter, a first stress sensitivity parameter, a confining stress value, axial stress values, a pore pressure value, and a second permeability model.

Abstract: A flexible wall device and method for measuring gas permeability coefficient and gas diffusion coefficient of unsaturated soil includes a gas washing device, a confining pressure-volume change system, a drying-wetting cycle control system and a gas measuring device. The drying-wetting cycle control system includes a humidity controller and valves. The gas measuring device includes a top lid, a cylindrical wall, a base, an upper chamber and a lower chamber. The top lid, the cylindrical wall and the base are connected by bolts and nuts, and the base has four passages, which are respectively connected to the gas washing device, the confining pressure-volume change system, the drying-wetting cycle control system and the gas measuring device, between the base and top lid are sequentially arranged from bottom to top as the lower chamber, lower perforated plate, lower permeable stone, sample, upper permeable stone, upper perforated plate, upper chamber, and control rod.

Abstract: Provided is a system for accurately calculating the degree of clogging of a filter with reduced amount of required data. The system includes a controller. The controller stores a judgment permission condition including that the flow rate of hydraulic fluid passing through a filter exceeds a predetermined flow rate threshold, and calculates: a judgment-permissible time, which is an integrated value of time in which the judgment permission condition is satisfied; and a judgment target time, which is an integrated value of time in which the judgment permission condition is satisfied and the differential pressure across the filter exceeds a predetermined differential pressure threshold. The controller calculates the degree of clogging of the filter on the basis of a comparison between the judgment permission time and the judgment target time.

Abstract: Systems and methods for determining breakdown overpressure are disclosed. The methods may include obtaining a borehole radius and a porosity value in a borehole; determining a rock brittleness index value from the porosity value; determining a breakdown overpressure radius from the rock brittleness index value and the borehole radius; and determining a breakdown overpressure from the breakdown overpressure radius. The methods may further include planning a fracking operation in a well based on the determined breakdown overpressure.

Abstract: A method for determining rock microscopic physical parameters and an apparatus may determine, based on the acquired macroscopic physical parameters and capillary pressure curve experimental data of a rock, a volume and a saturation of a nonwetting phase fluid injected into different pore throat distribution intervals, and calculate microscopic physical parameters of the rock, through which the properties of the rock, such as a pore structure, storage, seepage and the like can be depicted, thereby facilitating evaluation of hydrocarbon occurrences of a reservoir and formulation of a reasonable hydrocarbon field development strategy.

Abstract: Methods and systems for detecting a sample via optical pathways are described herein. In one aspect, a light detection system can include: a first optical pathway configured to direct emissions from an interrogation site to a first detector; a second optical pathway configured to direct emissions from the interrogation site to a second detector; and an automated switching module configured to receive a signal that induces the automated switching module to switch between (i) a first state that directs emissions from the interrogation site to the first optical pathway or a second state that directs emissions from the interrogation site to the second optical pathway and (ii) the other of the first state and the second state.

Abstract: The present invention relates to a method for the simultaneous detection and quantification of fungi and bacteria present in a divided solid containing cellulosic organic matter. According to the invention, to said sample before introducing into said cytometer, at least a first fluorochrome capable of binding to DNA and emitting, following an excitation, in a wavelength equal to or greater than 599 and equal to or greater than 657 nm is added.

Abstract: Environmental test equipment for the cooperative control of salt spray concentration and relative humidity, comprising: a dry salt spray generation system, an air conditioning system, a mixing chamber, a test chamber and an electric control cabinet; in accordance with the principle of conserving salt content and moisture content before and after mixing, the environmental test equipment obtains a salt spray concentration relationship formula and a relative humidity relationship formula between: environmental parameters in the test chamber, dry salt spray environmental parameters in the dry salt spray generation system, and air conditioning environmental parameters in the air conditioning system; after determining environmental test parameters required in the test chamber, the salt spray concentration relationship formula and the relative humidity relationship formula are used to obtain: temperature parameters and relative humidity parameters required to be set in the dry salt spray generation system, and tempe

Abstract: The sample holder (12) for supporting a hair strand comprises at least a first arm (24), the first arm (24) comprising an inner face (28) and an outer face (30), the sample holder (12) defining a housing (32) for receiving the hair strand delimited at least in part by the first arm (24). The first arm (24) comprises a through orifice arranged facing the housing (32) for receiving the hair strand and intended to removably receive an optic (18) of a hair strand analysis device (16), the first arm (24) comprising attachment means intended to removably attach the optic (18) of the analysis device (16) to the outer face (30) of the first arm (24).

Abstract: A photoacoustic remote sensing system (PARS) for imaging a subsurface structure in a sample, comprising one or more laser sources configured to generate a plurality of excitation beams configured to generate pressure signals in the sample at an excitation location, and a plurality of interrogation beams incident on the sample at the excitation location, a portion of the plurality of interrogation beams returning from the sample that is indicative of the generated pressure signals, an optical system configured to focus the plurality of excitation beams at a first focal point and the plurality of interrogation beams at a second focal point, the first and second focal points being below the surface of the sample, and a plurality of detectors each configured to detect a returning portion of at least one of the plurality of interrogation beams.

Abstract: A reflectometer and method of use for measuring an amount of analyte in a sample are provided. The reflectometer can include a plurality of reading heads for obtaining reflectance information from discrete regions on a lateral flow test strip. The reflectance information is processed to obtain a digital value for the reflectance. The discrete regions can include a test zone and at least two control zones that each has a differing amount of detection moiety binding substance. The digital values for each control zone can be employed to establish a high end standard and a low end standard. The digital value for the test zone interpolated to the standards to obtain an accurate quantitative value for the analyte in the sample.

Abstract: A system, an apparatus and a method of determining refined petiole nutrient values based on leaf spectral data are provided. The method includes storing leaf spectral data in a memory, transforming, using a processor, the leaf spectral data into preliminary petiole nutrient values by inputting the leaf spectral data into one or more linear machine learning models trained to provide petiole nutrient value outputs based on leaf spectral data inputs, and refining, using the processor, the preliminary petiole nutrient values by inputting the preliminary petiole nutrient values into one or more non-linear machine learning models. The one or more non-linear machine learning models are trained to provide refined petiole nutrient value outputs based on preliminary petiole nutrient value inputs.

Abstract: A method and a system for automatically detecting nitrogen content, an electronic device and a medium are provided and relate to the field of nitrogen content detection. The method includes: selecting an optimal nitrogen content prediction model from a prediction model base according to a variety and a growth stage of a target crop to obtain a target model; detecting, based on a spectral image of the target crop, a nitrogen content of the target crop by using the target model to obtain a predicted value of the nitrogen content. The optimal nitrogen content prediction model is the model with best performance among a first nitrogen content prediction model constructed based on a hyperspectral vegetation index, a second nitrogen content prediction model constructed based on a sensitive band, and a third nitrogen content prediction model constructed based on a machine learning method.

Abstract: A substance(s) contained in a sample may be identified based on a measured spectrum obtained from the sample via an optical spectroscopy method. The measured spectrum may be compared with a plurality of reference spectra of known pure substances. In a single substance search phase, an optimization problem formulated as a single optimization problem for regression, substance filtering and spectral corrections is solved to optimally adapt the reference spectra to the measured spectrum for a spectral comparison and to determine a HIT list of best matching reference spectra. In a subsequent limited multi-substance search, composite spectra, which are composed on the basis of the HIT list and remaining reference spectra by solving the optimization problem, are evaluated using a similarity metric, and one or more substances associated with composite spectra having a quality above a predefined quality threshold are provided the as set of substances contained in the sample.

Abstract: Disclosed is a soil sampling device designed to enhance efficiency and accuracy in soil analysis processes. The soil sampling device includes a computer system for data storage and processing, along with a display screen for visualizing collected scan data. Equipped with a GPS sensor, the device precisely identifies soil sampling locations. A sampling chamber ensures sample integrity by blocking ambient light during spectroscopy readings and facilitates sample disposal post-testing. Operating with a core rod column and an auger, the device efficiently extracts soil samples while homogenizing materials. A driver mechanism propels the auger, supported by a homogenization cylinder for mixing soil samples. Additional features include a stomp pad for depth control during sampling, a calibration standard mechanism for sensor calibration, and an sampling element/auger cover for sample containment.

Abstract: The present invention discloses an ultra-wideband terahertz imaging system and an imaging method. The ultra-wideband terahertz imaging system includes a terahertz wave generator, a terahertz signal emitter, a terahertz biological signal receiver, a terahertz biological signal processor, an image displayer and an intelligent scanning controller. The 3D holographic terahertz imaging system provided by the present invention can perform 2D or 3D image reconstruction on organs, and makes it unnecessary to paste any detector on organs in a manner of non-contact and non-trauma.

Abstract: A system for detecting a gas may include a first laser having a wavelength overlapping with two or more absorption features in a spectrum of the gas, a second laser having a wavelength centered away from absorbing features in the spectrum of the gas, and at least one sensor to determine a received power of the first laser and a received power of the second laser.

Abstract: A method for detecting filter status is applicable to an electronic device including a filter, and the method includes the following steps. In response to activation of the electronic device, timing is started and an accumulated operating time is obtained. In response to the accumulated operating time being greater than or equal to a time threshold value, a level of dirtiness of the filter is detected through an optical sensing element. The time threshold value is adjusted according to the level of dirtiness of the filter. A notification related to the filter is provided according to the level of dirtiness of the filter.