Abstract: Provided is an accurate turbidity measurement system and method, using a speckle pattern, in which a speckle pattern may be used for turbidity measurement, thereby enabling turbidity and bacterial or microbial contamination to be measured with high accuracy. The system may include: a measuring container which has a light input part formed in one side thereof, has a light scattering space formed therein, and has a light output part formed in the other side thereof; and an optical dilution member which is formed in at least a portion of the light scattering space, has a sample receiving part formed in one side thereof, and comprises an optical dilution medium having a role of optically diluting a speckle pattern of the sample.

Abstract: Provided is a sample transport medium vial, which may include: a sample collection part having an extraction part formed at the front end thereof, having a handle part formed in the middle thereof, and having, at the rear end thereof, a push button that can be pressed with the fingers; a medium accommodation tube in which a medium accommodation space capable of accommodating the medium is formed, and which is formed in a shape that encompasses the extraction part so that the extraction part of the sample collection part can be protected; and a one-touch-type elastic push device, which is provided at the handle part so that the protrusion length of the extraction part from the handle part can be extended to a first length or contracted to a second length when a collector presses the push button once or twice.

Abstract: A water examination device includes 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 in time series, the laser speckle being generated due to multiple scattering of the waves in the fluid; and a controller for estimating existence of foreign material in the fluid in real-time by using the detected laser speckle. An imaginary first plane passing through the wave source is parallel to an imaginary second plane passing through the detector.

Abstract: Provided is a turbidity meter including a main body, a fluid container which is formed inside the main body and in which a fluid is accommodatable, a fluid inlet pipe which is connected to the fluid container and via which the fluid is supplied to the fluid container, a fluid outlet pipe which is connected to the fluid container and via which the fluid is discharged from the fluid container to the outside, a wave source configured to irradiate waves toward the fluid container, a detector configured to detect a laser speckle at every time point set in advance, the laser speckle being generated due to multiple scattering of the irradiated waves in the fluid, and a controller configured to estimate the presence or absence of impurities in the fluid in real-time by using the detected laser speckle.

Abstract: An embodiment of the present invention provides an image information acquisition device comprising: a sample unit for accommodating a sample; a driver for moving the sample unit in a first direction; a light source for irradiating light to a partial region of the sample unit; an optical mirror for reflecting the light having passed through the sample unit, by scattering or diffraction of the light; an image sensor for recording in time-series an interference image generated by light reflected from the optical mirror; and a controller for generating image information of the sample based on a time-dependent change of the interference image.

Abstract: Provided is an antibiotic susceptibility evaluation apparatus including a sample unit including a sample and at least an antibiotic disk arranged on the sample, a light source radiating coherent light to the sample unit, an image sensor detecting transmitted light passing through the sample unit to obtain a sample image, and a controller configured to receive a first sample image, which is an image of the sample at an initial time when the antibiotic disk is arranged on the sample unit, and a second sample image, which is an image of the sample after a preset time, to obtain a spatial correlation of an interference pattern between the first sample image and the second sample image, and to evaluate susceptibility of the sample to antibiotics based on the spatial correlation according a position.

Abstract: The present invention relates to a test sample receiving block and a microbial detection apparatus using the same. The test sample receiving block may include a sample receiving block having a sample groove portion formed therein, the sample groove portion containing the sample so that a light emission module emits light to the sample and a sensor module can detect a speckle generated when the emitted light is scattered by motion of bacteria or microbes contained in the sample, wherein the sample receiving block is surface-treated to increase an optical path of light reaching the sensor module when the emitted light is reflected or scattered by the sample accommodated in the sample groove portion, so that a pattern is formed on a surface of the sample groove portion.

Abstract: Provided is a turbidity monitoring apparatus including a multi-tubular structure including an inner tube through a fluid to be measured flows and an outer tube that surrounds the inner tube, a wave source configured to irradiate a wave towards the multi-tubular structure, a detection unit configured to detect a laser speckle at each preset time, the laser speckle being generated by multiple scattering of the irradiated wave in the multi-tubular structure, and a control unit configured to estimate, in real time, the concentration of suspended substances or turbidity substances in the fluid to be measured, by using the detected laser speckles.

Abstract: Provided is a microorganism detection apparatus including a body, a sample accommodator module provided in the body to accommodate a sample, a beam irradiation module for irradiating a beam to the sample, a sensor module for detecting speckles generated when the beam irradiated to the sample is scattered due to motion of bacteria or microorganisms included in the sample, and a controller for controlling the beam irradiated from the beam irradiation module, and storing and analyzing images detected by the sensor module, wherein the sample accommodator module includes a sample accommodation block having a sample hole capable of accommodating a container containing the sample, and a heater for supplying heat to the bacteria or microorganisms in the sample at a preset temperature.

Abstract: A system for detecting microbes is provided.

Abstract: 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.

Abstract: 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.

Abstract: An embodiment of the present disclosure provides an intestinal microorganism detection system including: a feces collection unit configured to collect the feces of a user: a storage unit including a plurality of accommodation units configured to accommodate a fecal sample, the fecal sample being formed by mixing the feces collected by the feces collection unit with fluid; a sensor unit configured to detect a microorganism in the fecal sample accommodated in each of the plurality of accommodation units and generate first information; and a control unit configured to estimate, on the basis of the generated first information, the type of intestinal microorganism present in the user and a concentration thereof, wherein the plurality of accommodation units are respectively exposed to different environmental conditions.

Abstract: Provided is a method of detecting microbial colonies, the method including: irradiating light having coherence to a sample unit in which a sample is accommodated; detecting, by an image sensor, transmitted light passing through the sample unit to obtain a sample image in a time-series manner; analyzing the sample image by a controller after a preset time to determine the concentration level of colonies in the sample; and obtaining a spatial correlation of the coherence pattern of the sample image when the concentration level determined by the controller is a high concentration that is equal to or greater than a preset reference value, and determining information about the concentration of colonies in the sample based on the change of the spatial correlation of the coherence pattern over time.