51results about "Liquid dispersion analysis" patented technology

A high-temperature and high-pressure core displacement test system includes a CT scanner configured to perform CT scanning, a gripper system configured to grip a core, a machine tool configured to move the gripper system to the CT scanner for CT scanning, a gripper load control system configured to heat and input a fluid into or / and receive a fluid output from the gripper system, and an acquisition and data analysis system configured to acquire a temperature and a pressure within a core gripping cavity, and detection data of the CT scanner and strain rosettes for analysis. According to the high-temperature and high-pressure core displacement test system and method, the strength of the gripper system in a high-temperature and high-pressure environment is improved, the projection performance of CT rays is ensured, and the optical fiber positioning precision and the core deformation measurement precision in a CT rapid scanning state are improved.

A light illumination and collection device (100; 200) for a micro-fluidic system comprises: a flow channel (110; 210) configured to extend in a first plane and allow flow of a sample through the flow channel (110; 210), a light source (120; 220) configured to transmit illumination light along an optical axis extending through a cross-sectional plane of the flow channel (110; 210) for causing light interaction between the illumination light and the sample to form sample information carrying light; a light collecting waveguide (130; 230) configured to extend in a second plane parallel to the first plane, wherein the light collecting waveguide comprises a light inlet (132; 232) configured to receive the sample information carrying light, wherein the light inlet (132; 232) and the light collecting waveguide (130; 232) are rotated in relation to a projection of a normal of the cross-sectional plane onto the second plane.

A particulate matter detection device takes holographic images of flowing particulate matter concentrated by a virtual impactor, which selectively slows down and guides larger particles to fly through an imaging window. The flowing particles are illuminated by a pulsed laser diode, casting their inline holograms on a CMOS image sensor in a lens-free mobile imaging device. The illumination contains three short pulses with a negligible shift of the flowing particle within one pulse and triplicate holograms of the same particle are recorded at a single frame revealing different perspectives of each particle. A deep neural network classifies the particles based on the acquired holographic images. The device was tested using different types of pollen and achieved a blind classification accuracy of 92.91%. This mobile and cost-effective device weighs ˜700 g and can be used for label-free sensing and quantification of various bio-aerosols over extended periods.

Aerosol jet printing is a popular digital fabrication method for flexible and hybrid electronics, but it lacks sophisticated process control architectures that would enable more widespread adoption in manufacturing environments. An optical measurement system can be used to track the aerosol density upstream of the printhead. For example, the measured optical extinction combined with the aerosol flow rate, is directly related to deposition rate and accurately predicts functional properties, for example electrical resistance. This real-time system offers a compelling solution for process drift and batch-to-batch variability, a valuable tool for more fundamental studies of the process science, and a viable technology to support real-time control of aerosol jet printing.

Methods, apparatus, systems, and articles of manufacture are disclosed to measure fallout from a liquid flare burner. An example apparatus includes a device configurator to invoke a first control valve to isolate the liquid flare burner from a test fluid source, and invoke a second control valve to fluidly couple the liquid flare burner to a hydrocarbon source to generate unburned fallout droplets to be captured by first and second measurement surfaces in first and second measurement regions, a parameter calculator to calculate first and second fallout volumes associated with the unburned fallout droplets captured by the first and second measurement surfaces, and determine a fallout efficiency of the liquid flare burner based on the first and second fallout volumes, and a burner configurator to, in response to the fallout efficiency not satisfying a fallout efficiency threshold, adjust a configuration of the liquid flare burner based on the fallout efficiency.

In one aspect, a detection device is described, comprising: at least one sensor configured to detect a signal of a fluid sample comprising at least one analyte at a plurality of time points within a time period to generate a plurality of readouts of the signal each measured at one of the plurality of the time points within the time period; a first processor configured to generate a temporal profile of the readouts; a memory storing a database comprising a plurality of temporal profiles, each generated from a plurality of readouts of the signal of a known analyte measured by the sensor at the plurality of time points within the time period; a second processor configured to compare the generated temporal profile of the fluid sample with the database to determine the identity and / or concentration of the analyte in the fluid sample; wherein the first and second processors can be the same or different processors. Methods of using detection device for analyzing a fluid sample are also described.

The invention relates to a system (1) for producing bubbles (2) and / or drops (32), wherein the system (1) comprises a production device (3) for the bubbles (2) and / or drops (32) which has a nozzle (4) and a monitoring device (5) for monitoring a production operation of the production device (3).In order to produce bubbles (2) and / or drops (32) with a desired defined buoyancy neutrality and consistency, and to be able to selectively adjust the properties of the bubbles (2) and / or drops (32) during production, it is proposed that the monitoring device (5) includes a sound transducer (6) which is configured to generate signals depending on sound waves (7) produced by the production of the bubbles (2) and / or drops (32), wherein the monitoring device (5) includes an evaluation device (8) which is configured to evaluate the signals generated by the sound transducer (6) to determine a characteristic property of the bubbles (2) and / or drops (32) produced by the production device (3) and / or to determine a characteristic parameter of the production.

The present invention relates to a system (1) and a method for coating a surface (3a) of an object (3) with a spray coating tool (2) spraying atomised coating particles (10) onto. A conditioning hood (20) is applied defining a spray chamber. In operation the spray coating tool (2) is mounted at a coating tool mounting end (21), and an output end (22) is positioned in proximity of the surface (3a) of the object (3) to be coated. The spray coating tool (2) is operated to spray atomised coating particles (10) which travel from the coating tool (2), through the spray chamber and the output end (22) to the surface (3a) of the object (3). A carrier gas is injected that in operation carries the atomised coating particles (10) to the surface (3a) of the object (3).

An aerosol generating device includes an aerosol generator configured to generate aerosols, and a potentiometric sensor configured to generate a signal based on an electric potential difference that changes according e to changes in components of aerosols generated by the aerosol generator.

A system comprises a particle sensor for a vehicle comprising a light source that directs a beam to an interrogation region outside the vehicle; and an optical detector that receives scattered or reflected light from an aerosol particle in the interrogation region. A processor performs a method for particle classification comprising measuring an optical response from a single particle in the interrogation region by identifying an optical response peak for scattered or reflected light from the interrogation region; measuring an amplitude and duration of the optical response peak; correcting the duration of the optical response peak based on a vehicle airspeed; based on the measured amplitude of the optical response peak, generating an expected optical response duration for water droplet using a calibration table; analyzing the measured optical response duration and the expected optical response duration to determine particle classification; and generating classification probabilities for one or more particle types.

A computer-assisted method to monitor soil porosity at a field study site using a portable apparatus, the method including: acquiring a soil sample using a first container; recording a first measurement of a mass and a volume of the soil sample; adding the soil sample to a second container until the soil sample is added in entirety, wherein the second container is pre-filled with a fluid medium, wherein the soil sample is added to the second container without causing soil clustering, and wherein a second measurement of a mass of the second container with the fluid medium is recorded; recording a third measurement of a mass of the second container with the soil sample fully immersed in the fluid medium; calculating a porosity of the soil sample based on the first, second, and third measurements; and providing, at the field study site, the calculated porosity of the soil sample.

This aerosol-generating device comprises: an aerosol generator for generating an aerosol; and a potential-difference sensor for generating a signal on the basis of potential difference that changes in response to variations in the components of the aerosol generated by the aerosol generator.

A system comprises a particle sensor for a vehicle comprising a light source that directs a beam to an interrogation region outside the vehicle; and an optical detector that receives scattered or reflected light from an aerosol particle in the interrogation region. A processor performs a method for particle classification comprising measuring an optical response from a single particle in the interrogation region by identifying an optical response peak for scattered or reflected light from the interrogation region; measuring an amplitude and duration of the optical response peak; correcting the duration of the optical response peak based on a vehicle airspeed; based on the measured amplitude of the optical response peak, generating an expected optical response duration for water droplet using a calibration table; analyzing the measured optical response duration and the expected optical response duration to determine particle classification; and generating classification probabilities for one or more particle types.

An example system is configured to estimate a concentration of an airborne glycol in an environment. The system includes a processor, a display device, a first sensor configured to generate first sensor data representing a concentration of particles in the environment having a diameter less than a threshold diameter, a second sensor configured to generate second sensor data representing a temperature of the environment, and a third sensor configured to generate third sensor data representing a humidity of the environment. The processor is configured to receive the first sensor data, the second sensor data, and the third sensor data: estimate, based on the first sensor data, second sensor data, and the third sensor data, the concentration of the airborne glycol in the environment; and present, using the display device, a visual indication representing the concentration of the airborne glycol in the environment.

The diagnostic device and method for detecting a respiratory infection in a subject include a particle detection unit that acquires data regarding particles contained in the exhaled breath from the subject's airway, and a processing unit that determines a respiratory infection based on the data acquired from the particle detection unit and subject-related characteristics.

To provide an optical air data system for measuring aerosol and molecular scattering of light.SOLUTION: An optical air data system 110 performs one or more signal analysis and data fusion methods comprising: (a) determining aerosol and / or molecular concentration from received data, modifying a data analysis algorithm to optimize any remaining unknown parameters, and outputting enhanced air data parameters; (b) determining aerosol concentration from the received data, dynamically optimizing hardware settings in the air data system to enhance a signal level and avoid system saturation, and outputting enhanced air data parameters; or (c) determining aerosol and / or molecular concentration from the received data, estimating a confidence level of an air data algorithm, verifying optical health of the air data system, and reporting the optical health to a user.SELECTED DRAWING: Figure 1A

The invention relates to a method and a device adapted for the selective counting of individual respiratory droplets and particles comprising water within ambient air. The method is based on a planar capacitive sensor to which droplets and particles are led with a nozzle, which increases their velocity. Entering the electric field of the capacitive sensor, the respiratory droplets and particles change the sensor's capacitance. Because the respiratory droplets and particles containing water exhibit a notably distinct dielectric constant compared to other airborne particles and the air itself, they are counted in a selective way independently on other particulate matter air pollutants. The alteration in the capacitance is converted into an electrical signal, which is measured by known methods.

A method of analysing a spray of liquid (8) from a nozzle comprises: receiving a fluorescent liquid composition comprising fluorophores of a first type and fluorophores of a second type, wherein the fluorophores of the first type are excitable by absorption of electromagnetic radiation in a first absorption wavelength band and are configured to emit electromagnetic radiation, following excitation, in a first emission wavelength band, and wherein the fluorophores of the second type are excitable by absorption of electromagnetic radiation in a second absorption wavelength band and are configured to emit electromagnetic radiation, following excitation, in a second emission wavelength band, wherein the first emission wavelength band overlaps with the second absorption wavelength band; ejecting the fluorescent liquid composition from the nozzle to generate a spray; projecting, within a sheet plane, a sheet of light (5) through the spray, wherein the light comprises wavelengths within the first absorption wavelength band and within the second absorption wavelength band; capturing, in a side scattering orientation, light scattered by the spray within the sheet plane and determining a first intensity corresponding to an intensity of the captured light within the first emission wavelength band and a second intensity corresponding to an intensity of the captured light within the second emission wavelength band; and determining a characteristic of the spray based on the first intensity and the second intensity.

An optical sensor (10) for an aircraft includes two detectors (14, 16), a light source (12), and a controller (100). The detectors (14, 16) are oriented along detector paths and have tilt angles and fields of view. The detectors (14, 16) are configured to detect light reflected from an illumination volume and to generate detector signals that correspond to intensities of detected light. The tilt angles are equal such that each detector (14, 16) is oriented in an opposite direction within a plane containing a light source path and the detector paths. The light source (12) is oriented along the light source path and is configured to illuminate the illumination volume which overlaps with the fields of view within a predetermined distance range. The controller (100) is configured to receive the detector signals, detect whether a cloud is present based upon the detector signals, determine a cloud phase, and calculate a density of the detected cloud.

A nebulizer system capable of identifying when activation has occurred and aerosol is being produced. The nebulizer system monitors the inhalation and exhalation flow generated by the patient and communicates proper breathing technique for optimal drug delivery. The nebulizer system may monitor air supply to the nebulizer to ensure it is within the working range and is producing, or is capable of producing, acceptable particle size and drug output rate. When a patient, caregiver or other user deposits or inserts medication into the nebulizer, the nebulizer system is able to identify the medication and determine the appropriate delivery methods required to properly administer the medication as well as output this information into a treatment log to ensure the patient is taking the proper medications. The system is able to measure the concentration of the medication and volume of the medication placed within the medication receptacle, e.g., bowl.

The invention relates to a method and a device adapted for the selective counting of individual respiratory droplets and particles comprising water within ambient air. The method is based on a planar capacitive sensor to which droplets and particles are led with a nozzle, which increases their velocity. Entering the electric field of the capacitive sensor, the respiratory droplets and particles change the sensor's capacitance. Because the respiratory droplets and particles containing water exhibit a notably distinct dielectric constant compared to other airborne particles and the air itself, they are counted in a selective way independently on other particulate matter air pollutants. The alteration in the capacitance is converted into an electrical signal, which is measured by known methods.

A system comprises a particle sensor for a vehicle comprising a light source that directs a beam to an interrogation region outside the vehicle; and an optical detector that receives scattered or reflected light from an aerosol particle in the interrogation region. A processor performs a method for particle classification comprising measuring an optical response from a single particle in the interrogation region by identifying an optical response peak for scattered or reflected light from the interrogation region; measuring an amplitude and duration of the optical response peak; correcting the duration of the optical response peak based on a vehicle airspeed; based on the measured amplitude of the optical response peak, generating an expected optical response duration for water droplet using a calibration table; analyzing the measured optical response duration and the expected optical response duration to determine particle classification; and generating classification probabilities for one or more particle types.

The disclosed embodiments describe a system comprising: a deposition chamber; a light source for generating an incident light beam, wherein the incident light beam is used to illuminate a region of the deposition chamber; and a camera for collecting scattered light originating from the illuminated region of the deposition chamber, wherein scattered light is generated when the first incident light beam interacts with particles within the illuminated region of the deposition chamber. The described system may optionally include a processing device coupled to the camera to generate scattering data at multiple locations within the illuminated region, wherein the scattering data at each location includes the intensity of the scattered light originating from that location.

Methods, apparatus, systems, and articles of manufacture are disclosed to measure fallout from a liquid flare burner. An example apparatus includes a device configurator to invoke a first control valve to isolate the liquid flare burner from a test fluid source, and invoke a second control valve to fluidly couple the liquid flare burner to a hydrocarbon source to generate unburned fallout droplets to be captured by first and second measurement surfaces in first and second measurement regions, a parameter calculator to calculate first and second fallout volumes associated with the unburned fallout droplets captured by the first and second measurement surfaces, and determine a fallout efficiency of the liquid flare burner based on the first and second fallout volumes, and a burner configurator to, in response to the fallout efficiency not satisfying a fallout efficiency threshold, adjust a configuration of the liquid flare burner based on the fallout efficiency.

Device (10) for measuring the particle characteristics of a particle (12) located in a measuring volume (14) of the device (10). The device (10) has a light source (16) for generating a light beam (18) that passes through the measuring volume (14) and whose polarization in a cross-sectional plane (30) can be described by a spatially dependent Stokes vector that has a spatially dependent S3 Stokes parameter. Furthermore, the device (10) has a detector unit (34) configured to measure an S3 Stokes parameter of the light beam (18) reflected and / or scattered by the particle (12) and to output a measurement signal as a function of the measured S3 Stokes parameter, and an evaluation unit (82) configured to determine the particle characteristics as a function of the measurement signal from the detector unit (34).

The invention relates to a system (101) for discriminating the size of supercooled droplets for an aircraft. The system (101) comprises at least one laser source (103) configured to emit a laser beam (105) and a focusing device (107) for focusing the laser beam (105) into a cloud (109) of supercooled droplets. The laser source (103) is configured to generate an optical back-injection interference signal from a reflection of the laser beam (105) into the cloud (109) of supercooled droplets, and a processing unit (113) is configured to acquire the interference signal and analyze the amplitude variations of said interference signal using a convolutional neural network so as to classify the droplets in the cloud (109) according to their size. Figure for the abstract: Fig. 3

A device for particle sensing is disclosed. The device includes a sensor including a bulk acoustic wave resonator having a resonant frequency, an acoustic mirror arranged to support the resonator, and a heater in thermal communication with the resonator such that a resonator temperature is based on a heater temperature. The device also includes circuitry connected to the sensor. The circuitry comprises a driver configured to drive the heater with a driver signal having a constant periodic cycle, and an oscillator configured to generate an output signal indicative of the resonant frequency. The resonant frequency is modulated by the resonator temperature.

A device (10) for measuring the particle characteristics of a particle (12) located in a measuring volume (14) of the device (10), comprising: a light source (16) for generating a first light beam (18) and a second light beam (20), each passing through the measuring volume (14); a detector device (69) configured to detect the first light beam (18) and the second light beam (20) reflected and / or scattered by the particle (12) and to output an intensity signal; and an evaluation unit (82) configured to determine the particle characteristics as a function of the intensity signal. The first light beam (18) and the second light beam (20) propagate within the measuring volume (14) along a beam axis (30, 32).The ray axis (30) of the first light ray (18) and the ray axis (32) of the second light ray (20) define between them a propagation angle (34) which is not equal to 0°.

The aerosol generating device comprises: an aerosol generator for generating an aerosol; and a potential difference sensor that generates a signal in accordance with a potential difference that varies as the composition of the aerosol generated by the aerosol generator varies.

The present invention discloses an experimental device and method for simulating trace aerosol leakage and gas leakage. The aerosol generation and introduction module comprises a gas source and an aerosol generator which are connected in sequence. The aerosol generated by the aerosol generator passes through an experimental cavity to a leak plate, a simulated leak tube, an aerosol collection tube and a particle sampling analyzer. The particle sampling analyzer collects aerosol particle characteristic data before and after leakage and transmits it to a data acquisition system. By measuring the mass concentration, particle number concentration and particle size of the aerosol at the inlet and outlet of the simulated leak tube and in the compensation gas, the aerosol mass leakage rate, particle number leakage rate and aerosol leakage ratio are obtained in combination with the volume of the experimental cavity, the working flow rate of the particle sampling analyzer, the compensation gas flow rate and the sampling time. The gas leakage parameters and the aerosol leakage parameters are coupled to establish a relationship between aerosol leakage and gas leakage, which is applied to the analysis of the source term of radioactive material leakage release. The method of the present invention is easy to operate.