Provided is a water examination device including: a main body; a fluid accommodation unit formed in the main body; a wave source for irradiating waves toward the fluid accommodation unit; a detector for detecting a laser speckle at every set time period that is set in advance, the laser speckle being generated due to multiple scattering of the waves in the fluid; a controller for estimating existence of impurities in the fluid in real-time by using the detected laser speckle; and a calibration unit for controlling the wave source or the detector such that an intensity of light irradiated from the wave source and measured by the detector is within a certain range set in advance.

The present disclosure describes a computer implemented method, a system, and a computer program product of measuring quality attributes of a virus sample. In an embodiment, the method, system, and computer program product include (1) receiving light scattering (LS) data from a light scattering detector analyzing separations of a virus sample, dRI data, and UV data, (2) receiving a molecular weight of a protein component of the sample, Mprotein (expected), a refractive index increment of the protein component, (dn/dc)protein, a refractive index increment of a DNA component of the sample, (dn/dc)DNA, and an extinction coefficient of the protein component, εprotein, (3) calculating a protein fraction of the sample, xprotein, with respect to the LS data, the dRI data, the Mprotein (expected), the (dn/dc)protein, the (dn/dc)DNA, and an optical constant, K, (4) calculating a DNA extinction coefficient of the sample, εDNA, and (5) calculating quality attribute values of the sample.

The present disclosure describes an apparatus, method, system, and computer program product of identifying a cuvette for measuring light scattering of a sample. In an exemplary embodiment, the apparatus includes at least one sensor configured to detect at least one shape feature of a cuvette, and an insulating block configured to maintain a temperature of the at least one sensor within an operating temperature range of the at least one sensor. In an exemplary embodiment, the method, system, and computer program product include receiving a first set of signals from a first sensor directed to a cuvette, receiving a second set of signals from a second sensor directed to the cuvette, and executing a set of logical operations detecting a shape feature of the cuvette.

Blood analysis apparatus, method, and storage medium are provided, including: obtaining optical signals of a first test sample; determining a first test result of a blood sample from the optical signals of the first test sample; determining whether any one or a combination of reticulocytes, immature platelets and large-volume platelets in the blood sample is abnormal from the optical signals of the first test sample; outputting the first test result if it is determined that reticulocytes, immature platelets and large-volume platelets in the blood sample are normal; if it is determined that any one or a combination of reticulocytes, immature platelets and large-volume platelets in the blood sample is abnormal, preparing a second test sample and obtaining optical signals of the second test sample; and obtaining a second test result of the blood sample from the optical signals of the second test sample and outputting the first test result.

Blood analysis apparatus, method, and storage medium are provided, including: obtaining optical signals of a first test sample; determining a first test result of a blood sample from the optical signals of the first test sample; determining whether any one or a combination of reticulocytes, immature platelets and large-volume platelets in the blood sample is abnormal from the optical signals of the first test sample; outputting the first test result if it is determined that reticulocytes, immature platelets and large-volume platelets in the blood sample are normal; if it is determined that any one or a combination of reticulocytes, immature platelets and large-volume platelets in the blood sample is abnormal, preparing a second test sample and obtaining optical signals of the second test sample; and obtaining a second test result of the blood sample from the optical signals of the second test sample and outputting the first test result.

According to one embodiment, a sample inspection apparatus includes a photodetection circuitry, an image sensor, processing circuitry, and an output interface. The photodetection circuitry has light incident on an optical waveguide in an inspection container and detects the light having propagated within the optical waveguide and coming out of the optical waveguide. The image sensor acquires an image signal for the optical waveguide, using scattered light originated from the light propagating within the optical waveguide. The processing circuitry acquires one or more inspection index values based on at least one of an output of the photodetection circuitry or an output of the image sensor. The output interface outputs a result of processing by the processing circuitry.

According to one embodiment, a sample inspection apparatus includes a photodetection circuitry, an image sensor, processing circuitry, and an output interface. The photodetection circuitry has light incident on an optical waveguide in an inspection container and detects the light having propagated within the optical waveguide and coming out of the optical waveguide. The image sensor acquires an image signal for the optical waveguide, using scattered light originated from the light propagating within the optical waveguide. The processing circuitry acquires one or more inspection index values based on at least one of an output of the photodetection circuitry or an output of the image sensor. The output interface outputs a result of processing by the processing circuitry.

The present disclosure provides for an apparatus for measuring optical properties of liquid samples. The apparatus includes a sample chamber and a spectrometer optically coupled with the sample chamber. One or multiple sources of electromagnetic radiation are positioned relative to the sample chamber to direct electromagnetic radiation through the sample chamber to measure the color, haze, and/or clarity of the sample. Also provided is a method for measuring optical properties of liquid samples, including inserting a cuvette containing a liquid sample into the sample chamber of the apparatus, and directing electromagnetic radiation from the one or more sources and through the sample to measure the color, haze, and/or clarity of the sample. The apparatus and methods may be used to analyze various samples, such as petroleum-based fluids, including fuels and lubricants.

Provided is a water examination device including: a main body; a cup accommodation unit formed inward from a surface of the main body such that a cup containing a fluid is accommodated therein; a wave source for irradiating a wave toward the cup accommodation unit; a detector for detecting a laser speckle generated when the irradiated wave is multiple-scattered in the fluid, at every time point set in advance; and a controller for estimating whether foreign substances exist in the fluid in real-time by using the detected laser speckle.

Provided is a water examination device including: a main body; a cup accommodation unit formed inward from a surface of the main body such that a cup containing a fluid is accommodated therein; a wave source for irradiating a wave toward the cup accommodation unit; a detector for detecting a laser speckle generated when the irradiated wave is multiple-scattered in the fluid, at every time point set in advance; and a controller for estimating whether foreign substances exist in the fluid in real-time by using the detected laser speckle.