Abstract: The device serves for the qualitative and quantitive detection of particles in a fluid and includes a light source (1), an optical sensor (2) and a sample carrier (4) which is arranged therebetween and which is for receiving fluid to be examined. The sample carrier is (4) movable relative at least to the sensor (2) and is connectable via a fluid inlet (9) to a conduit (11) for feeding the fluid, and via a fluid outlet (10) to a conduit (12) for the discharge of fluid. The sample carrier (4) is exchangeably arranged in a receiver of the device, so that this sample carrier can be replaced by another one in a rapid and simple manner when the sample carrier (4) is contaminated.

Abstract: The present disclosure includes a method for optical measurements. The method includes providing a substrate with a structure for optical measurement on the substrate; and illuminating a light spot on the structure for optical measurement to obtain a measured light scattering spectrum. The method also includes performing a first matching process to obtain a plurality of matching standard optical scattering spectra and a plurality of first matching degrees, each standard optical scattering spectrum corresponding to one first matching degree; obtaining a plurality of combined optical scattering spectra based on the plurality of matching standard optical scattering spectra; and performing a second matching process to obtain a plurality second matching degree, each corresponding to one combined optical scattering spectrum.

Abstract: This inspection system has an optical head, a support system, and a controller in electrical communication with the support system. The support system is configured to provide movement to the optical head with three degrees of freedom. The controller is programmed to control movement of the optical head using the support system such that the optical head maintains a constant angle of incidence relative to a wafer surface while imaging a circumferential edge of the wafer. An edge profiler may be scanned across the wafer to determine an edge profile. A trajectory of the optical head can be determined using the edge profile.

Abstract: An X-ray apparatus includes an X-ray source configured to radiate X-rays onto an object, an X-ray detector configured to detect X-rays having penetrated through the object among the radiated X-rays and obtain pieces of raw data of different energy bands based on the detected X-rays, a raw image obtainer configured to obtain raw images in which different materials constituting the object are enhanced using the pieces of raw data, and an image processor configured to process the raw images and generate an X-ray image of the object based on the processed raw images.

Abstract: An apparatus and method of measuring an object (having at least two edges) projects a plurality of x-ray images of the object. At least two of the plurality of x-ray images are projected from different directions relative to the object. The apparatus and method also locate the at least two edges in the x-ray images, and ray trace a plurality of lines. Each ray traced line is tangent to at least one point on at least one of the located edges. Next, the apparatus and method reconstruct at least a partial wireframe model of the object from the tangent points of the ray traced lines. The wireframe model includes the at least two edges. Finally, the apparatus and method measure between the at least two edges of the at least partial wireframe model.

Abstract: The application relates to a method and device for imaging an object through photoneutron transmission. The method uses photoneutron rays to transmit the object, and comprises the following steps: emitting photoneutron rays by a photoneutron source to irradiate on the object; receiving the photoneutron rays from the photoneutron source by a detector; and imaging the object based on the photoneutron rays received by the detector; wherein the detector can slow down and absorb the photoneutrons, and wherein the incidence direction of the photoneutron rays from the photoneutron source and the normal direction of the detector surface form an angle ranging from 60 degrees to 87 degrees, or from about 60 degrees to about 87 degrees.

Abstract: An inspection system includes an irradiation source, an image detector, and a placement device. The placement device comprises a carrier and a rotation mechanism. With respect to connections, the placement device is configured to be disposed between the irradiation source and the image detector, and the rotation mechanism is configured to be connected to the carrier. With respect to operations, the irradiation source and the image detector are driven to be moved along a predetermined path, the carrier is configured to carry at least one object, and the rotation mechanism is configured to rotate the carrier.

Abstract: A device for indicating a presence of X-rays or gamma rays may include a visual indicator. The visual indicator may include a material and a plurality of quantum dots adhering to the material or disposed in the material. The quantum dots may be exposed on a surface of the material opposite an object when the material is attached to the object. The quantum dots fluoresce in response to the quantum dots being exposed to X-rays or gamma rays.

Abstract: The invention features a novel non-invasive approach for imaging, detecting and/or sensing metal ions with improved sensitivity and specificity in a biological sample or tissue. In certain embodiments, the invention provides a MR contrast-based approach for imaging, detecting and/or sensing metal ions in the biological sample/tissue containing various background ions by using 19F-based chemical exchange saturation transfer (CEST) technique.

Abstract: The disclosure concerns monitoring cables, such as stay cables used to support bridges. A cable comprises multiple strands which are electrically connected to each other at one or both ends of the cable and insulated from each other between the ends. A cable monitor selectively activates one or more inductive coils, such that electrical signals are 5 suppressed on a first set of the multiple strands and electrical signals are allowed to pass through a second set of the multiple strands. The monitor then applies an electrical stimulus signal to the cable and senses on the cable a reflection signal of the stimulus signal. Finally, the monitor determines based on the reflection signal a continuity of one or more of the second set of the multiple strands. Since reflections 10 are suppressed on some strands by the coils, the sensed reflections can be attributed to the strands without the suppression.

Abstract: A hydrogen gas sensor and a method for fabrication thereof are disclosed. The hydrogen gas sensor includes an insulating substrate, a pair of electrical electrodes deposited thereon, and a nanocluster film formed intermediate said electrical electrodes such that hydrogen concentration in ambient air surround the hydrogen gas sensor is measurable based on a change in electrical current established through the nanocluster film using a constant voltage power supply.

Abstract: A sensor chip comprises a substrate (1) with a front side (11) and a back side (12), and an opening (13) in the substrate (1) reaching through from its back side (12) to its front side (11). A stack (2) of dielectric and conducting layers is arranged on the front side (11) of the substrate (1), a portion of which stack (2) spans the opening (13) of the substrate (1). Contact pads (32) are arranged at the front side (11) of the substrate (1) for electrically contacting the sensor chip. A sensing element (4) is arranged on the portion of the stack (2) spanning the opening (13) on a side of the portion facing the opening (13).

Abstract: Provided herein is a gas sensor apparatus including a first sensor unit, second sensor unit, and signal processing unit. The first sensor unit has a channel area doped to an n-type such that it may selectively react to a donor molecule in gas. The second sensor unit has a channel area doped to a p-type such that it may selectively react to an acceptor molecule in gas. The signal processing unit receives a sense signal of the donor molecule from the first sensor unit and a sense signal of the acceptor molecule from the second sensor unit, processes the received sense signals and generates result data of processing the received sense signals. Therefore, the gas sensor apparatus may selectively sense donor gas and acceptor gas.

Abstract: At least one of apparatus (100, 400) and a method for determining one or more electromagnetic properties of a region of interest are described. One or more inductive measurements (410) corresponding to the region of interest and one or more capacitive measurements (420) corresponding to the region of interest are received. An estimate of electrical conductivity is obtained (430) based on at least the received one or more inductive measurements (410). This is used to determine a permittivity measurement (440) together with at least the received one or more capacitive measurements (420).

Abstract: A test strip with an incorporated optical waveguide and deflectors punched through the optical waveguide allows light to exit through a layer of the test strip and be detected by a photo detector. Using light and a photodetector, these uniquely coded strips are identified. The waveguide can be constructed by sandwiching two layers of the test strip around a light transmissible layer. This configuration allows light to be transmitted through the test strip and out the other end, as well as allowing some light to escape the deflector. This light is detected by a photodetector mounted in the analyte test meter. The deflectors may be placed in patterns such that detection of this light indicates certain characteristics of the strip, such as non-counterfeit, regional identification, type of analyte tested, and coding information.

Abstract: Various embodiments for a method that allow for a more accurate analyte concentration with a biosensor by determining at least one physical characteristic signal representative of the sample containing the analyte and selecting an analyte measurement sampling time based on measured temperature, physical characteristic and estimated analyte values along with temperature compensations provided for specific parameters used in the test assay.

Abstract: Various embodiments for a method that allow for a more accurate analyte concentration with a biosensor by determining at least one physical characteristic signal representative of the sample containing the analyte and selecting an analyte measurement sampling time based on measured temperature, physical characteristic and estimated analyte values.

Abstract: A method for measuring a target object in a sample by using an oxidase, wherein the influence of dissolved oxygen in the sample can be corrected, is provided. The method comprises: obtaining measurement values by causing the target object in the sample to react with the oxidase under different conditions of two or more types; and performing a correction based on the obtained two or more measurement values and a correction method preliminarily set so as to correct the influence of dissolved oxygen in the sample.

Abstract: Provided is a sensor chip for electrochemically measuring a concentration of an analyte in a blood sample. In one embodiment of the sensor, the sensor chip includes a substrate, and a preliminary measurement analyzer and a hematocrit value analyzer disposed on the substrate. The preliminary measurement analyzer includes a preliminary working electrode and a preliminary counter electrode. The hematocrit value analyzer includes a working electrode and a counter electrode. An oxidant of a redox substance is disposed on the preliminary measurement analyzer and the counter electrode. A reductant of a redox substance is disposed on the working electrode.

Abstract: Testing of the performance of an electrochemical meter used to measure the presence of an analyte in a biological sample, particularly glucose in whole blood, includes introducing a control solution containing a predetermined amount of the analyte and a predetermined amount of an internal reference compound. The internal reference compound is selected such that it is oxidized at a potential greater than that used to oxidize the analyte, thereby making it possible to distinguish the control solution from a biological sample.

Abstract: The present invention relates to analytical testing devices comprising a resistor for cartridge device identification and methods for assaying coagulation in a fluid sample based on the cartridge device identification, and in particular, to performing coagulation assays using a resistor for cartridge device identification in a point of care test cartridge. For example, the present invention may be directed to a chip including an analyte electrode connected to a first connection pin, a reference electrode connected to a second connection pin, and a resistor connected to the second connection pin and a third connection pin.

Abstract: A gas sensor element (10) includes a first composite ceramic layer (111) having a plate-shaped first surrounding portion (112) formed of an insulating ceramic and including a through hole inner-perimetric-surface (115) which defines a through hole (112h), and a plate-shaped first electrolyte portion (121) formed of a solid electrolyte ceramic, disposed in the through hole (112h), and including an electrolyte outer-perimetric-surface (125) in contact with the through hole inner-perimetric-surface (115). The electrolyte outer-perimetric-surface (125) of the first electrolyte portion (121) is sloped toward an exterior of the first electrolyte portion (121) as it approaches one side DT1. The through hole inner-perimetric-surface (115) and the electrolyte outer-perimetric-surface 125 are in close contact with each other along their entire perimeters.

Abstract: A gas sensor element (10) includes a composite ceramic layer (111) having an insulation portion (112) and an electrolyte portion (131) disposed within a through hole (112h), and a first conductor layer (150) extending in a continuous manner on a first insulation main surface (113) as well as on a first electrolyte main surface (133). The electrolyte portion (131) is thinner than the insulation portion (112), and the first electrolyte main surface (133) is located on a thickness-direction inward side DTN. The insulation portion (112) has, on a first insulation main surface side, a protruding portion (122) overlying the first electrolyte main surface (133). The thickness of the protruding portion (122) reduces toward the inward side DR1 of the through hole (112h). The first conductor layer (150) extends in a continuous manner on a protrusion surface (122s) as well as on the first electrolyte main surface (133).

Abstract: A process analytic instrument includes a measurement cell and an analyzer circuit. The measurement cell includes a solid state electrochemical oxygen sensor configured for exposure to a process gas. The analyzer circuit is coupled to the solid state electrochemical sensor to measure an electrical parameter of the solid state electrochemical sensor and provide an output indicative of oxygen in the process gas. A DC bias circuit is configured to selectably bias the solid state electrochemical oxygen sensor with a direct current when the solid state electrochemical sensor is in a reducing environment.

Abstract: A method for diagnosing disconnection of an oxygen sensor includes measuring, by a controller, a voltage supplied to an oxygen sensor through a voltage divider; measuring a voltage of a reference cell of the oxygen sensor; determining whether the voltage supplied to the oxygen sensor and the voltage of the reference cell fall within a reference range from preset reference values, respectively; and determining that a ground wire of the oxygen sensor is disconnected, when the voltage of the oxygen sensor or the voltage of the reference cell deviates from the reference range.

Abstract: An electrostatic force testing apparatus applies an electrostatic force to a test specimen and thereby imparts stress on the specimen. A focused electrostatic force is applied to the test specimen using a shaped probe tip of the electrostatic force testing apparatus. The force applied to the test specimen may be varied based on a distance of the probe tip from the test specimen, a voltage applied to the probe tip, and a shape of the probe tip.

Abstract: The invention relates to the identification of molecules using electromagnetic write-heads and magneto-resistive sensors. In one embodiment, an electromagnetic write-head magnetically excites a molecule with an alternating magnetic field. A magneto-resistive sensor measures the resonant response of the magnetically excited molecule. A processor compares the resonant response to a table of known responses of different molecules to identify the chemical composition of the molecule based in whole or in part on the comparison.

Abstract: A sensor including a vibrating wire is used to measure a dew point of a fluid.

Abstract: One aspect of a process of inspecting a joint that connects two parts includes directing an ultrasonic beam from an ultrasonic beam transmitter at a joint that connects two parts, the ultrasonic beam forming an angle between at least 14 degrees and at most 21 degrees with a joint axis of the joint, wherein the ultrasonic beam passes through a joint thickness of the joint. The process also includes determining a quality of the joint based, in part, on a difference between a strength of the ultrasonic beam directed at the joint and a strength of a portion of the ultrasonic beam that passed through the joint thickness.

Abstract: A method for estimating the detonation performance of a material is executed by first preparing a small sample of the material to be tested. That sample is lased with a laser beam having sufficient energy to induce a plasma from a portion of the sample and to produce a shock wave, without detonation of the sample. The velocity of the shock wave is then measured at different times. And a characteristic shock velocity determined for the material based on the relationship between shock velocity and time. The characteristic shock velocity represents the velocity of the shock wave at the point in time when the shock front expands freely without additional energy input from the plasma or subsequent chemical reactions. The characteristic shock velocity can be used to determine whether a material is non-energetic or energetic; if it is energetic, the estimated detonation performance can be determined.

Abstract: Methods and systems for monitoring vibrations introduce baseline vibrations into a fiber optic cable with one or more of a designated frequency or a designated amplitude. Changes in the baseline vibrations are monitored using the fiber optic cable. Information about environmental conditions outside of the fiber optic cable and/or moving objects can be determined based at least in part on the changes in the baseline vibrations that are monitored. The information that is determined about the objects, such as vehicles, can be modified based on the changes in the baseline vibrations.

Abstract: A system and method for testing an acoustic probe having a series of transducer elements adapted to convert between acoustic and electrical signals is provided. The system comprises an acoustic signal generator and a receiver. The acoustic signal generator sends an acoustic signal into at least one of the series of transducer elements of the acoustic probe. An electrical transducer signal generated in response to receipt of the acoustic signal at the selected transducer element. The receiver has a switch to receive the electrical transducer signal from each selected transducer element of the acoustic probe. A display provides an illustration indicative of an operative ability of the selected transducer element of the acoustic probe to convert between acoustic and electrical signals.

Abstract: A system is described that includes a known fuels database of data from gas chromatography-mass spectrometry analyses of a library of fuels with known fuel properties for a multiple known fuel samples. Gas chromatography-mass spectrometry equipment can acquire gas chromatography-mass spectrometry data for an unknown fuel sample. A metaspectrum module can accept and transform the gas chromatography-mass spectrometry data collected by the gas chromatography-mass spectrometry equipment for the unknown fuel sample into a single metaspectrum for the unknown fuel sample, wherein the metaspectrum is a quantitative representation of every compound detected in the unknown fuel sample. A correlation module can correlate the metaspectrum for the unknown fuel sample to a plurality of fuel properties of known fuel samples using a regression model to predict fuel properties for the unknown fuel sample. A reporting module can report the fuel properties for the unknown fuel sample to a user.

Abstract: A method for measuring a relative content of Gram-negative bacteria in an active sludge, the method including: 1) breaking zoogloeas in the active sludge; 2) isolating 2-keto-3-deoxyoctonic acid (KDO) from free bacteria and cell debris; 3) performing fluorescence labeling on the isolated KDO to obtain a fluorescent derivative; and 4) isolating the fluorescent derivative by high performance liquid chromatography (HPLC) and conducting quantitative measurement by fluorescence to obtain the relative content of the Gram-negative bacteria in the active sludge.

Abstract: A method for the determination of film-forming amines in liquids by adding a reacting agent with the amine to form a coloured complex to be measured by photometric method. For the reaction, the pH of the liquid mixture is lowered by using hydrochloric acid.

Abstract: A system and method for creating a scent database is described. An electronic sensing unit is used to receive an odorant sample and generate an electronic signature characterizing the sample received therein via a sample guiding unit that guides first portion of the sample into the electronic sampling unit and a second portion of the sample towards an outlet, thereby enabling one or more users to be exposed to said gas-phase sample. A control unit is used to receive data indicative of the electronic signature genrated by the electronic sensing unit and a data from the one or more users indicative of a plurality of olfactive descriptors characterizing the sample to which the users are exposed, thereby enabling creation of a data record including first and second characterizing data corresponding to the same sample.

Abstract: Various arrangements for detecting and mitigating toxic gases are presented. Components of a home automation system may be used to monitor gas concentrations in home. Changes or elevated levels of gas concentrations may trigger mitigation or diagnosis procedures. Diagnosis procedures may include correlating the gas sensor readings with the activity of components of a home to identify possible causality. The activity of components may be changed and altered to test correlations or determine causality between components.

Abstract: A sensor arrangement for determining the CO2 concentration in an interior space has an NDIR sensor unit that can determine the number of CO2 molecules on an optical measuring section and therefrom the CO2 concentration in an interior space. The sensor arrangement further has an evaluation unit that can calculate the air pressure from measurement values of the NDIR sensor unit and that can carry out an air-pressure compensation on the basis of the value calculated for the air pressure or of an air pressure correction value calculated therefrom for the measurement value of the CO2 concentration determined by the NDIR sensor unit.

Abstract: A generator condition monitoring device using gaseous decomposition products sensor according to the present invention comprises moisture trap and a filter for removing moisture and oil in generator cooling hydrogen gas, three way solenoid valve for changing flow of hydrogen gas, hydrocarbon trap for absorbing and removing gaseous decomposition products in a hydrogen gas, a dew point meter for measuring amount of moisture in hydrogen gas, and detection sensor for detecting gaseous decomposition products in hydrogen gas.

Abstract: A method for hourly, daily, weekly, monthly, quarterly and annual forecasted air quality health effects caused by air pollutants generated over a determined geographical area and a system implementing the method.

Abstract: An environment sensitive coating system is disclosed that includes a pressure sensitive component comprising a first portion of an oxygen sensitive light emitting material dispersed in an oxygen permeable binder; and a pressure reference component comprising a second portion of the oxygen sensitive light emitting material dispersed in an oxygen impermeable binder.

Abstract: A system for measuring a gas plume includes a vehicle affixed or attached with a mast comprising a plurality of perforated inlet tubes configured to measure or detect real-time height-resolved sampling of a gas of interest, such as methane, over the height of the mast, and/or a plurality of gas analyzers, wherein the analyzers are configured to provide a continuous readout of the gas of interest from each height interval using the plurality of gas analyzers from each height interval.

Abstract: Systems, methods, and devices for testing gaseous samples for concentrations of specific chemicals. An apparatus has two sensing assemblies for testing for hydrogen sulfide concentrations in gaseous samples. A first assembly is disposed to expose a first side of a sensing tape to a first stream of a gaseous sample. A second assembly is disposed to expose a second side of the same sensing tape to a second stream of another gaseous sample. Both assemblies detect and analyze the hydrogen sulfide concentrations of their respective gaseous samples by way of their respective sides of the sensing tape.

Abstract: Optical analysis systems and methods that utilize integrated computational elements (“ICE”) may be useful for characterizing dry cements and determining cement slurry additives suitable for use therewith. For example, a method may include optically interacting a dry cement with an ICE configured to detect a characteristic of the dry cement; generating a plurality of output signals corresponding to the characteristic of the dry cement detected by the ICE; receiving and processing the plurality of output signals with a signal processor to yield a value for the characteristic of the dry cement; and determining at least one of a composition and a concentration of a cement slurry additive for use in combination with the dry cement based on the value of the characteristic of the dry cement.

Abstract: The presence of a detectable entity within a detection volume of a microfabricated elastomeric structure is sensed through a change in the electrical or magnetic environment of the detection volume. In embodiments utilizing electronic detection, an electric field is applied to the detection volume and a change in impedance, current, or combined impedance and current due to the presence of the detectable entity is measured. In embodiments utilizing magnetic detection, the magnetic properties of a magnetized detected entity alter the magnetic field of the detection volume. This changed magnetic field induces a current which can reveal the detectable entity. The change in resistance of a magnetoresistive element may also reveal the passage of a magnetized detectable entity.

Abstract: In certain embodiments, the invention stems from the discovery that analysis of population distribution curves of metabolite levels in blood can be used to facilitate predicting risk of autism spectrum disorder (ASD) and/or to differentiate between ASD and non-ASD developmental delay (DD) in a subject. In certain aspects, information from assessment of the presence, absence, and/or direction (upper or lower) of a tail effect in a metabolite distribution curve is utilized to predict risk of ASD and/or to differentiate between ASD and DD.

Abstract: In certain embodiments, the invention stems from the discovery that analysis of population distribution curves of metabolite levels in blood can be used to facilitate predicting risk of autism spectrum disorder (ASD) and/or to differentiate between ASD and non-ASD developmental delay (DD) in a subject. In certain aspects, information from assessment of the presence, absence, and/or direction (upper or lower) of a tail effect in a metabolite distribution curve is utilized to predict risk of ASD and/or to differentiate between ASD and DD.

Abstract: A method for detecting at least one analyte in a body fluid is disclosed comprising performing an optical measurement, wherein at least one test chemical is contacts the body fluid. The test chemical is an optical test chemical adapted to perform at least one detection reaction, wherein at least one optically detectable property is changed due to the detection reaction to provide at least one optical measurement value. At least one impedance measurement is generated wherein at least one alternating electrical signal is applied to the body fluid via the impedance measurement electrodes and at least one answer signal is recorded, and at least one impedance measurement value is generated. At least one evaluation step is performed wherein at least one evaluation algorithm is used, and the optical measurement value and the impedance measurement value are used for determining a concentration of the analyte in the body fluid.

Abstract: Some embodiments of a blood coagulation testing system include an analyzer console device and a single-use cartridge component configured to releasably install into the console device. In some embodiments, the blood coagulation testing system can operate as an automated thromboelastometry system that is particularly useful, for example, at a point-of-care site.

Abstract: A blood analyzer comprises a flow cell, a first light source, a second light source, a first light receiving part, a second light receiving part, and a processing unit. The processing unit obtains values related to the number of red blood cells, the number of white blood cells, and hemoglobin based on a first scattered light information based on the signals output from the first light receiving part, and a second scattered light information based on the signals output from the second light receiving part.