A method including selecting image data of a mechanical mud separation machines (“MMSM”) to detect objects in an object flow and other operational conditions at the MMSM. The image data may be processed by a Deep Neural Network to identify objects in the object flow, operational parameters of the MMSM, and environmental conditions. Additional image data may be selected for additional processing based on the results of the analysis.

Examples disclosed herein generally relate to systems and methods for detecting the size of a particle in a fluid. In one example, a system for imaging a particle includes a first imaging device. The first imaging device includes a lens and a digital detector. The system further includes a laser source. He laser source is configured to emit a first laser beam and a second laser beam. The digital detector is configured to accumulate a metric of an intensity of an accumulated light that passes through the lens. The accumulated light is scattered from the particle. The accumulated light includes light from the first laser beam and the second laser beam.

The purpose of the present invention is to provide a particulate observation device using light scattering, which includes a means for determining the three-dimensional position of a particle, and can measure an accurate particle size or impart various properties of same. The present invention is characterized by including a position determination means which captures, with an optical microscope, an image of light scattered from particles in a dispersion medium to which laser light is emitted, and determines a three-dimensional position of each particle from the obtained two dimensional image, wherein the position determination obtains two-dimensional coordinates along the two-dimensional image from luminescent point positions of the particles, and determines the depth position along a coordinate axis vertical to the two-dimensional image from the diameters of diffraction fringes of the luminescent points.

To provide a particle measuring device capable of removing particles adhering to an observation window for capturing an image of the particles and measuring an accurate particle size distribution. A particle measuring device that image-recognizes particles contained in a fluid to be measured and measures a physical quantity of the particles includes: a sample holding region that holds a sample containing the particles; an observation window disposed on a wall surface of the sample holding region; and a cleaning nozzle configured to discharge a cleaning liquid toward the observation window, in which the cleaning liquid is different from the fluid to be measured.

Disclosed is an approach to differentiating between different particle types in samples flowing through microfluidics chips. A sample may have an initial proportion of a first cell type to a second cell type. An illuminating light source may emit a coherent light at the sample, and light leaving the chip in a first direction may be detected using a first light detector, and light leaving the chip in a second direction (e.g., orthogonal to the first direction) may be detected using a second light detector. The detected light may be fluorescence. An orientational feature of a plurality of cells in the sample may be determined based on the light detected by the detectors. Based on the orientational features and the detected light, a biasing operation may be performed for each cell in the sample to obtain a modified proportion of cell types in the sample.

A particulate matter sensor module includes a light source and a light detector mounted on a substrate. A housing is attached to the substrate and includes first and second sections attached to one another in a stack over the substrate such that the first section is disposed between the substrate and the second section. The first and second sections, in combination, define a light reflection chamber, a fluid flow conduit, a particle-light interaction chamber, and a light trap chamber. The first section has a first aperture through which light emitted by the light source can pass to a reflective surface within the light reflection chamber. The reflective surface is configured to reflect the light toward the particle-light interaction chamber where the light can interact with particles in a fluid flowing in the fluid flow conduit. The first section has a second aperture through which light scattered in the particle-light interaction chamber as a result of interaction with one or more of the particles can pass for sensing by the detector. The fluid flow conduit includes a fluid inlet portion having an end coupled directly to the particle-light interaction chamber.

A particle sensor is provided for sensing the number or mass concentration of particles within a particular particle size range, the particles having a particle size distribution. The sensor comprises a light source (14) for providing light which is scattered by the particles to generate scattered light; a light detector (16, 18) for detecting the scattered light to provide a light detector signal; and a controller (24) for analyzing the light detector signal to determine information relating to the particle size distribution. Based on that information relating to the particle size distribution, the controller selects a mode of operation of the particle sensor to sense the particles only within the particular size range.

The invention provides an optical particle sensor which uses light sources of different first and second wavelengths. A first light source is used to detect light scattering and also to determine when a particle reaches a target positional area. In response to the particle being determined to reach the target positional area, a second light source is operated to provide a pulse of light, and light emitted from the particle in response to the pulse of light is detected by the same detector.

An apparatus is provided for determining particle characteristics, in which a flow path is generated containing particles to be analyzed. A light detection system detecting light received from a measurement zone which has been scattered by the particles. A time duration for which a particle remains in the measurement zone is measured to determine an effective aerodynamic particle diameter and a peak detected received light intensity is measured to determine an effective optical particle diameter. A further particle parameter is also obtained relating to the shape and/or density of the particle. This approach enables more information than only a particle size to be obtained using a single-stage optical analysis system. The additional information may be used to characterize the particles more accurately.

The purpose of the present invention is to provide a particulate observation device using light scattering, which includes a means for determining the three-dimensional position of a particle, and can measure an accurate particle size or impart various properties of same. The present invention is characterized by including a position determination means which captures, with an optical microscope, an image of light scattered from particles in a dispersion medium to which laser light is emitted, and determines a three-dimensional position of each particle from the obtained two dimensional image, wherein the position determination obtains two-dimensional coordinates along the two-dimensional image from luminescent point positions of the particles, and determines the depth position along a coordinate axis vertical to the two-dimensional image from the diameters of diffraction fringes of the luminescent points.