21 results about "Turbidity Measurement" patented technology

The invention discloses a high-turbidity measuring method, a high-turbidity measuring instrument, a medium and a program product, and relates to the field of testing or analyzing materials by means of measuring chemical or physical properties of the materials.In the method, the filtering transmission light intensity and the filtering scattered light intensity of a red light wave band and the filtering transmission light intensity and the filtering scattered light intensity of a white light wave band are collected; respectively determining a first group of weighting coefficients corresponding to the first turbidity range and a second group of weighting coefficients corresponding to the second turbidity range based on the corresponding relationship between the light intensity ratio and the turbidity value of the standard turbidity sample; calculating an initial turbidity value of the to-be-detected water sample based on the first group of weighting coefficients; judging whether the initial turbidity value is greater than a preset range threshold value or not; if yes, calculating a final turbidity value of the to-be-detected water sample based on a second group of weighting coefficients; if not, taking the initial turbidity value as the final turbidity value of the water sample to be detected; the final turbidity value of the water sample to be detected is displayed in the display screen. The method is used for improving the accuracy of testing the high-turbidity water sample.

The invention discloses a pressure-resistant high-precision water quality low-turbidity measuring device, and belongs to the technical field of water quality turbidity measurement. And the pressure buffering mechanism is arranged on the mounting back plate. According to the pressure-resistant high-precision water quality low-turbidity measuring device, a measuring flow cell is formed through cooperation of the mounting back plate, the pressure buffering mechanism and the detection mechanism, the problem that stable measurement cannot be achieved under the condition of long-term water pressure and pump pressure tolerance is solved, and the pressure-resistant high-precision water quality low-turbidity measuring device is convenient to use through use of the pressure buffering mechanism. Pressure water flow firstly impacts a buffering conical panel in a first-stage buffering cavity, a conical inclined surface of the buffering conical panel can disperse impact force and preliminarily remove large impurities and bubbles, then a buffering spring and a damping rod act synergistically to absorb pressure fluctuation energy and ensure that the buffering process is stable, and the water flow enters a second-stage buffering cavity through a second separating and filtering buffering plate. Finer flow stabilization and bubble removal are carried out, and unstable pressure water flow can be converted into soft and stable water sample flow.

The invention relates to the technical field of water quality on-line monitoring and optical detection, in particular to a water quality turbidity on-line monitoring system of a vegetable cleaning circulating waterway, which comprises the following steps: collecting 90-degree lateral scattering light intensity time sequence waveform, 180-degree transmission light intensity time sequence waveform and flow velocity characteristic parameters; constructing a low-frequency continuous change ideal reference based on a preset Mie scattering theory model and the flow velocity characteristic parameters; injecting a non-target scattering interference parameter to generate an interfered simulation waveform; respectively extracting an actual measurement residual error template set and a theoretical residual error template set; performing morphological similarity comparison and outputting an interference judgment result; eliminating and compensating interference fragments, reserving measured data of non-interference fragments, and resolving a corrected turbidity result; and updating the interference parameters and the ideal reference according to the corrected turbidity result and the interference judgment result. The stability and the accuracy of turbidity measurement in the dynamic circulating waterway can be improved.

The invention relates to the technical field of turbidity measurement, and discloses a turbidity measurement method and a turbidity sensor.The method comprises the steps that an infrared emission device is controlled to emit light pulses in a preset pulse width range to a water sample to be measured, and scattered light signal waveforms in the water sample to be measured are synchronously collected; identifying a peak point in the scattered light signal waveform, and determining a peak sampling moment corresponding to the peak point; obtaining a first sampling value at a previous moment adjacent to the peak sampling moment and a second sampling value at a next moment based on the scattered light signal waveform; and calculating the turbidity of the to-be-detected water sample based on the first sampling value and the second sampling value. Through the collaborative design of pulse driving and sampling at adjacent moments on two sides of a peak value, the linearity, the stability and the resolution of turbidity measurement are greatly improved.

1. The name of the design product: steady flow defoaming ultra-low turbidity measurement flow device. 2. The use of the design product: for providing steady water flow and eliminating bubbles interfering with measurement for ultra-low turbidity measurement process. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view.

A luminous intensity adjustment-based turbidity measurement method and system. The turbidity measurement method comprises the steps: 1, by means of a transmitting circuit, a controller stimulates a multi-light-intensity LED to emit light, which is received by a photodiode after passing through a test solution and is then transmitted to the controller by means of a receiving circuit, and the controller processes data to obtain an S value; 2, by means of an I / O, the controller controls the luminous intensity of the multi-light-intensity LED so as to emit light of multiple light intensities, and two or more standard solutions are used to calibrate the light of multiple light intensities, thereby calibrating parameters for calculating the S value; and 3, a solution under test is tested and, during the testing process, the controller controls the multi-light-intensity LED to separately emit one of the light of multiple light intensities so as to measure the S value, compares the S value with the parameters calibrated in step 2, and adjusts the light intensity of the multi-light-intensity LED on the basis of a comparison result so as to measure the turbidity of the solution under test. The accuracy and stability of test results are improved.

1. Name of the product in this design: Defoaming Ultra-Low Turbidity Measuring Flow Device. 2. Purpose of this product design: To assist in the measurement of ultra-low turbidity, ensuring the flow of water samples while eliminating air bubble interference. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The application discloses a long-time sequence environmental monitoring data storage and processing method, relates to the technical field of environmental monitoring data processing, and is suitable for a long-time continuous water environmental monitoring scene of a fixed section automatic monitoring station. Without increasing additional monitoring hardware, in view of the problems that single equipment disturbance, single real water body change and a mixture of the two in a turbidity deviation process in a device action adjacent period are difficult to distinguish, and abnormal entry and removal have time asymmetry, based on turbidity measurement records, auxiliary water quality index measurement records and device action records, the starting boundary and the ending boundary of the confused time section are stably determined, and the section is separately saved from a conventional abnormal processing chain, so that accurate and consistent section basis is provided for subsequent storage, statistics and processing.

A method, instrument, medium, and procedure for measuring high turbidity are disclosed, relating to the field of testing or analyzing materials by measuring their chemical or physical properties. In this method, the intensity of filtered transmitted light and filtered scattered light in the red light band, and the intensity of filtered transmitted light and filtered scattered light in the white light band are collected. Based on the correspondence between the light intensity ratio and turbidity value of a standard turbidity sample, a first set of weighting coefficients corresponding to a first turbidity range and a second set of weighting coefficients corresponding to a second turbidity range are determined. Based on the first set of weighting coefficients, the initial turbidity value of the water sample to be tested is calculated. It is then determined whether the initial turbidity value is greater than a preset range threshold. If so, the final turbidity value of the water sample to be tested is calculated based on the second set of weighting coefficients. If not, the initial turbidity value is used as the final turbidity value of the water sample to be tested. The final turbidity value of the water sample to be tested is displayed on a screen. This application aims to improve the accuracy of testing high-turbidity water samples.

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.

The invention provides a water transparency monitoring method and equipment based on turbidity measurement, belongs to the technical field of water environment monitoring, and aims to solve the problems of poor accuracy and stability of a monitoring result caused by poor fitting degree of a conversion model and neglect of environment illumination interference in the prior art. The method comprises the following steps: collecting an original turbidity value of a water body, water surface incident illumination intensity, a weather type and a water body type; compensating and correcting the original turbidity value based on the collected parameters to obtain a compensated turbidity value; and substituting the compensated turbidity value into a preset power exponent relational expression, and calculating to obtain the transparency of the water body. The equipment comprises an acquisition module and a processing module and is used for executing the method. According to the invention, through a strategy of first compensation and then conversion, the ambient light interference is effectively offset, the monitoring precision and stability of the full turbidity interval are improved, and low-cost and automatic continuous monitoring can be realized.

[Problem] To provide a prediction system and a chemical solution that make it possible to predict the occurrence of troubles on paper, thereby preventing the occurrence of troubles on paper. [Solution] The present invention provides a prediction system and a chemical solution. The prediction system is provided with: a measurement unit 30 for performing water quality measurement of a pulp suspension; an imaging unit 40 for imaging paper that has passed through a dry part; and a control unit 20 connected to the measurement unit and the imaging unit. The water quality measurement is at least one selected from the group consisting of suspended solids measurement, turbidity measurement, ash content measurement, oxidation-reduction potential measurement, total raw material concentration measurement, raw material yield measurement, ash content yield measurement, conductivity measurement, water temperature measurement, and pH measurement. The control unit 20 includes: an acquisition means 21 for acquiring image data and a measurement result; a detection means 22 for detecting an incipient defect; an extraction means 23 for extracting a feature amount of the incipient defect; a classification means 24 for classifying the incipient defect by type; a model acquisition means 25 for acquiring a prediction model indicating a relationship between measurement information and defect count information; a setting means 26 for setting a threshold to a calculated measurement result obtained from the prediction model; and a transmission means 27 for transmitting an alert when an actually measured measurement result exceeds the threshold.

The present application relates to the field of liquid refractive index and turbidity measurement, and discloses a method, system and device for simultaneously measuring liquid refractive index and turbidity, wherein the method comprises the following steps: S1, measuring the liquid to be measured by using a reflection type refractometer, a photoelectric sensor in the refractometer collecting a brightness image, the refractometer having a prism, the prism being in contact with the liquid to be measured to form a contact interface, the brightness image including a reflected light spot formed by light directly reflected by the contact interface and a scattering factor formed by light reaching the photoelectric sensor after passing through the contact interface into the prism after being scattered by the liquid to be measured; S2, obtaining the refractive index of the liquid to be measured through the position of the brightness change boundary line of the reflected light spot, and obtaining the turbidity of the liquid to be measured through the scattering factor. The present application can simultaneously measure the liquid refractive index and turbidity by using a refractometer, and the measurement is simple and low in cost.

An online water turbidity and color measurement system, comprising a sampling module, a turbidity measurement module, a color measurement module, a data processing and analysis module, a communication module, and a power source module, wherein the sampling module is used for automatically collecting a water sample; the turbidity measurement module is used for measuring the turbidity of the water sample; the color measurement module is used for measuring the color of the water sample; the data processing and analysis module is used for receiving turbidity data and color data of the water sample, which are respectively transmitted by the turbidity measurement module and the color measurement module, processing, analyzing and storing the data in real time, and calculating a turbidity value and color value of the water sample; the communication module is used for remote communication with a user; and the power source module is used for providing a stable power supply for the measurement system. Such a technical solution can continuously measure the turbidity and color of a water body in real time, and provide accurate and reliable data and data transmission.

The invention provides a water quality turbidity measuring device and method, and belongs to the field of water quality detection.The measuring device comprises an umbilical tube, a camera, an artificial light source and a shade guide and is used for measuring turbidity and correcting color cast of an underwater image based on the white balance theory after the transmissivity is calculated. The measuring method comprises the following steps: the measuring device acquires a reference image and an underwater image, and respectively calculates the average brightness of a white block area; and calculating the water turbidity based on the average brightness of the white block area. The device disclosed by the invention does not need to use an additional turbidimeter, is adaptive to various navigation equipment and use scenes, and realizes efficient and convenient measurement of the water turbidity.

The invention relates to a river reservoir suspended sediment remote sensing recognition system and method based on water color difference, and belongs to the technical field of water ecological environment monitoring. The method comprises the following steps: firstly, acquiring a multispectral satellite image through a GEE cloud platform, and extracting reflectivity data of main and branch flows through preprocessing such as atmospheric correction and image fusion; performing space-time registration on the in-situ turbidity measured value and the satellite reflectivity to construct a training data set; aiming at different water color characteristics of the main stream and the branch stream, respectively establishing a support vector regression machine learning model of the main stream and a multi-hydrological-period empirical model of the branch stream, and realizing high-precision zoning inversion of turbidity; and finally, identifying the suspended sediment water body through turbidity grading, and generating a spatial-temporal distribution map. The method effectively solves the problem of water color difference of the main stream and the branch stream caused by reservoir regulation, remarkably improves the precision and the reliability of remote sensing monitoring of the suspended sediment, and provides technical support for river reservoir sediment treatment and water environment management.

The invention discloses a turbidity detection method, a dual-light-path turbidity sensor and electronic equipment, and relates to the technical field of sensor detection.The turbidity detection method comprises the steps that a light guide assembly guides a measuring light source emitted by a first light-emitting assembly to a light sensing assembly through detected water flow; controlling the second light emitting assembly to emit a reference light source to the light sensing assembly; controlling the photosensitive component to receive the measuring light source and the reference light source respectively; collecting the data sensed by the photosensitive component through the collection unit to obtain sampling data; and inputting the sampling data into the pre-trained convolutional neural network model to obtain a turbidity measurement result, the turbidity value is obtained by adopting the convolutional neural network model, the labor cost is saved, and meanwhile, the accuracy of the finally obtained turbidity value is also improved.

This invention discloses a method for reducing the influence of lipemia on transmission-scattering fusion-enhanced immunoturbidimetric assays, specifically including the following steps: S1, measuring the average absorbance signal value of a specific measurement point after adding reaction buffer to each sample; S2, measuring the non-lipemia turbidity value of different samples that does not cause a low scattering measurement after adding reaction buffer, i.e., the background; S3, comparing the value measured in step S1 with the value measured in step S2 to determine whether the scattering turbidity measurement results need to be revised; This invention relates to the field of transmission-scattering fusion-enhanced immunoturbidimetric assay technology. This method for reducing the influence of lipemia on transmission-scattering fusion-enhanced immunoturbidimetric assays achieves this by demonstrating a strong correlation between the turbidity of lipid particles in lipemia samples and the transmission turbidity signal value in the reaction buffer during transmission-scattering fusion-enhanced immunoturbidimetric assays, and by quantifying this correlation through the transmission absorbance values ​​of the sample and R1.

The present application relates to a visual turbidity measuring device for identifying particle disturbance caused by soft particles and moisture contamination when measuring particle contamination in lubricating oil and hydraulic oil, comprising: a measuring device body forming a measuring part cover space to place a sample cover sampled as a sample for particle contamination measurement; a turbidity chart arranged in a manner that can confirm and diagnose the contamination of the sample cover of the measuring part cover space; a laser optical sensor for measuring the contamination of the sample cover of the measuring part cover space; a display for displaying the contamination measurement results of the sample cover measured by the laser optical sensor; a photographing management part for photographing the sample cover to store and manage oil images; and a control part for performing control management. According to the present application, the accuracy of the measurement can be further improved by the dual measurement of the naked eye and electronic contamination.

The application is a river reservoir suspended sediment remote sensing recognition system and method based on water color difference, belonging to the technical field of aquatic ecological environment monitoring. First, multispectral satellite images are obtained through the GEE cloud platform, and dry and branch stream reflectivity data are extracted after preprocessing such as atmospheric correction and image fusion. Then, in-situ turbidity measurement values are spatiotemporally matched with satellite reflectivity to construct a training data set. According to the different water color characteristics of the dry and branch streams, a support vector regression machine learning model for the dry stream and a multi-hydrological period empirical model for the branch stream are respectively established to realize high-precision partition inversion of turbidity. Finally, suspended sediment water bodies are identified through turbidity grading, and a spatiotemporal distribution atlas is generated. The application effectively solves the problem of water color difference between dry and branch streams caused by reservoir regulation, significantly improves the precision and reliability of suspended sediment remote sensing monitoring, and provides technical support for river reservoir sediment control and water environment management.

The invention discloses a drug sensitive test sample separation device and a control method thereof, and belongs to the technical field of microbiological detection.A turbidity measurement module and a liquid relief module are integrated into the same automatic device, the turbidity measurement module is used for measuring the turbidity of a sample in a sample container, and the liquid relief module is used for transferring liquid to the sample container; the pipetting module is used for preparing a diluent for diluting a sample in a dilution container of a dilution station; then, the pipetting module is used for preparing a liquid medicine-containing culture solution in the culture container of the culture station, finally, the diluted sample in the dilution container is added into the liquid medicine-containing culture solution to prepare a culture sample, and the culture sample can be directly used for a drug sensitivity test; therefore, by adopting the sample separation equipment for the drug sensitive test, the culture sample required by the drug sensitive test can be prepared by the same automatic equipment, the automation degree is relatively high, and the pollution problem occurring in the storage and transfer processes of a bacterial liquid sample and a culture solution can be avoided.