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287results about How to "The test results are objective" patented technology

System and method for quantitative detection of test strips on basis of continuous fluorescent-substance markers

ActiveCN101592659AEmitting characteristic wavelengths with high fluorescence brightnessHigh fluorescence brightnessBiological testingFluorescence/phosphorescenceAcquired characteristicFluorescence
The invention belongs to the field of bio-medical instruments, and in particular relates to a system and a method for quantitative detection of test strips on the basis of continuous fluorescent-substance markers. The system comprises a continuous fluorescent-substance marker test strip, a test strip frame, a lighting system, an imaging system, a fluorescent image receiver, a signal amplifier, an analog / digital converter, a data processing-controlling system, an output display device, a printer, a keyboard and an IC card matched with the test strip. The data processing-controlling system reads parameters of the IC card and then controls the test strip frame to move so as to ensure that the light emitted by the lighting system is reflected via a dichroic mirror and then automatically scans the test strip; acquired characteristic wavelength reflection fluorescence is transmitted to the data processing-controlling system for optical density identification and concentration calculation via the fluorescent image receiver, the signal amplifier and the analog / digital converter; and the output display device displays results. The invention can quickly and accurately realize the quantitative or qualitative detection of single-component and multi-component samples. The system has the characteristics of high detection sensitivity, objective results, flexible use and the like.
Owner:马义才

Quantum dot marking test strip quantitative detection system based on CMOS image sensor

Disclosed is a CMOS image sensor-based on quantum dot marking test strip quantitative detection system, which comprises a quantum dot marking test strip, a test strip frame, a scanning system, a CMOS image sensor, a data-processing device, an output display device, a printer, a keyboard and an IC card matched with the test strip. After reading the IC card parameters, the data-processing device controls the test strip to move, so that the scanning system can automatically scan a detection band and a quality control band of the test strip; the collected signals are transmitted to the data-processing device through the CMOS image sensor, so that the optical density of the detection band and the quality control band can be identified and processed with concentration computing and technical analysis; and the test results are transmitted to the output display device and displayed. The invention can accurately achieve one-component and multi-component quantitative, semi-quantitative or qualitative detection of samples and can dynamically monitor the immunochromatographic reaction process. The system has high sensitivity, objective result and flexible operation.
Owner:马义才

Rapid lens flaw detection method and apparatus thereof

The invention discloses a rapid lens flaw detection method and an apparatus thereof. The method comprises the following steps: equally dividing the surface of a lens to be detected into n<2> parts, respectively obtaining the images of all the parts, and obtaining n<2> images within a preset time which is used for controlling the image obtaining rate; 2, carrying out median filtering, black hat transformation and binary processing on the n<2> images respectively, and partitioning off defective images; 3, carrying out opening operation on the defective images to filter out non-flaw interference parts; and 4, drawing contours of the defective images subjected to non-defective interference filter, there are flaws on the surface of the lens to be detected if there is a counter, and no flaws are on the surface of the lens to be detected if there is no counter. The rapid lens flaw detection method provided in the invention allows scratches on the lens to be clearly detected through a surface defect detection method based on the mathematical morphology under the high speed motion of a platform, and defect types to be effectively discriminated, and has the characteristics of fast speed, objective detection result and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

Bridge inspection vehicle

The invention relates to a device for bridge inspection, in particular a novel self-walking intelligent bridge inspection vehicle which comprises a lower carriage (8) and an upper carriage (10) connected with the lower carriage through a pivoting support (9), wherein the upper carriage (10) is connected with a vertical arm oil cylinder (16) at the upper end part of a vertical arm (17) through a quadrangular connecting and lifting mechanism, a rotating device (27) is arranged at the lower end part of the vertical arm (17) and connected with a horizontal working arm that extents to the bottom of a bridge, photographing devices are arranged on the rotating device (27) and the horizontal working arm, a frame oil cylinder (11) is arranged between the upper carriage (10) and the quadrangular connecting and lifting mechanism, and a connecting oil cylinder (19) is arranged between the rotating device (27) and a first telescopic arm (22). As the device is unmanned, the requirements to the structural strength of a cantilever crane are relatively smaller, thereby the volume and the weight of the bridge inspection vehicle are reduced, and the flexibility is enhanced; and meanwhile, an intelligent video device is adopted to store inspection videos, and the more specific analysis can be carried out conveniently, thereby the inspection result is more objective, and the inspection efficiency is higher.
Owner:YANSHAN UNIV

System for quantitative detection of quanta dot mark test bar and detection method thereof

The invention provides a system for the quantitative detection of a quanta dot mark test bar and a detection method thereof. The system comprises a quanta dot mark test bar, a test bar rack, a scanning system, a photovoltaic conversion system, an analog-to-digital converter, a data processing device, an output display device, a printer, a keyboard and an IC card matched with the test bar. The data processing device reads the parameters of the IC card and then controls the test bar rack to move so as to make the scanning system automatically scan a test bar detection band and a quality control band, the acquired signals are transmitted back to the data processing device by the photovoltaic conversion system and the analog-to-digital converter, so that the optical density values of the detection band and the quality control band undergo recognition, concentration counting and technical analysis, and the detection results are finally transmitted to the output display device for display. The system has the advantages of high detection sensitivity, objective results, flexible use, and the like.
Owner:马义才

Method of using electronic nose for detecting freshness of river crucian carp

InactiveCN102879436ATo achieve the purpose of freshness detectionReduce dosageMaterial resistanceRise rateSignal-to-noise ratio (imaging)
A method of using an electronic nose for detecting freshness of river crucian carp includes the steps: (1) placing river crucian carp samples to be detected into a sample container, sealing and standing for 20-40min at the room temperature; (2) inserting a filtered gas probe of the electronic nose into the sample container for 40-60s, and collecting top gas; (3) enabling the gas to enter a gas sensor array for detection and analysis; and (4) collecting and storing related data of gas according to the specific process: (4-1) extracting response characteristic values of the gas sensor array, wherein the response characteristic values include an initial value, a stable value, rise time and rise rate; (4-2) curing a non-linear stochastic resonance algorithm into a digital signal processor internally arranged in the electronic nose, and inputting the original response characteristic values of the electronic nose into a DSP (digital signal processor) and outputting a signal-to-noise-ratio spectral characteristic value by computing; and (4-3) computing a freshness value of the river crucian carp according to a freshness prediction model and the signal-to-noise-ratio spectral characteristic value. The method is simple, convenient, rapid and effective.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Method for detecting fresh degree of chicken meat by electronic nose

The invention discloses a method for using an electronic nose to detect the freshness of chicken. The invention aims at providing a method which uses the electronic nose to detect the freshness of chicken, has the advantages of rapidity and simpleness, easy use and objective and reliable detection result, and can reduce the impact of storing conditions to the detection result. The method comprises the following steps: a chicken sample to be detected is put into a sealed container and then heated in water bath with thermostatic control; the heated chicken sample is put into a test room, and then smell sent by the sample is detected by a gas sensor array which consists of four gas sensors of different types; the data which is aquired by the gas sensor array is collected and processed; and then the freshness of chicken is judged according to the processing result of the data. The detection method uses an electronic nose which consists of four gas sensors of different types to detect the chicken sample, and has the advantages of objective, accurate, and fast detection result, good repeatability, simple analysis process and small using amount of sensors, and reduces the extraction of eigenvalues.
Owner:TIANJIN UNIV OF COMMERCE

Automatic test method and system for intelligent televisions

The invention discloses an automatic test method and system for intelligent televisions. The method includes: acquiring a version to be tested; installing the version to be tested into an intelligent television; calling a test case to generate a control command according to the version to be tested; transmitting the control command to the intelligent television and judging whether the intelligent television already executes the control command or not; if yes, transmitting an identifier information acquisition command to the intelligent television, and acquiring acquired identifier information; judging whether the acquired identifier information is consistent to pre-stored identifier information or not; if yes, determining test is passed. Through the application of the automatic test method and system, the intelligent televisions can be tested more efficiently.
Owner:LE SHI ZHI ZIN ELECTRONIC TECHNOLOGY (TIANJIN) LTD

Method for preparing road base material cylindrical test piece simulating on-site rolling effect

The invention discloses a method for preparing a road (bottom) base material cylindrical test piece simulating on-site rolling effect. The vibration compaction test method is adopted to determine the maximum dry density rhodmax and the optimal moisture content wo and the vibration method is adopted to prepare the cylindrical test piece. The operation process of the method corresponds to the on-site practical construction process. The maximum dry density and the optimal moisture content of the tested (bottom) base material and the prepared test piece coincide with the on-site practical rolling effect. The test result of the performance of the test piece is objective and real; and the method has good repeatability. Steps of measuring the moisture content of dried aggregates and moisture content of dried test samples, a step of interlayer broom-finish treatment, a step of flattening the surface of the samples and the like are saved; the material feeding process is simplified; and the working efficiency is improved. The method has the advantages of simple operation, reliable result and good repeatability.
Owner:CHANGAN UNIV

Method for detecting breakage of lugs of high-speed rail contact net suspension device

The invention discloses a detection method adopting SIFT (Scale-Invariant Feature Transform) to detect a breakage fault of rotary double lugs. The method comprises the following steps of: firstly, carrying out local feature point matching on the image of a contact net supporting and suspending device and the image of a rotary double-lug template by utilizing an SIFT algorithm; secondly, screening successfully matched feature points by utilizing an improved RANSAC (Random Sample Consensus) algorithm and positioning the rotary double lugs; thirdly, extracting an upper boundary curve of the rotary double lugs by utilizing a boundary tracing method, and drawing a curvature curve of all points on the curve; and finally, carrying out difference treatment on the drawn curvature curve and the curvature curve under a normal condition at the corresponding point to judge whether the lugs have a breakage fault or not. The method provided by the invention can accurately identity the lug with the breakage fault in the image of a complex contact net suspending device, and greatly improves detection efficiency in comparison with an artificial screening method.
Owner:SOUTHWEST JIAOTONG UNIV

Method of using electronic nose for detecting freshness of tilapia

A method of using an electronic nose for detecting freshness of tilapia includes the steps: (1) respectively placing back and belly samples of tilapia to be detected into a sample container, and standing for 20-40min at the room temperature; (2) inserting a sample injection pinhead of the electronic nose into the sample container at the normal temperature, inserting an air filter filled with activated carbon into the sample container to balance air pressure, starting the electronic nose, and enabling the electronic nose to suck gas given out by the standing samples inside; (3) detecting the gas given out by the samples by the aid of a gas sensor array inside an electronic nose gas chamber, wherein detecting time is 40-60s, and cleaning time is 3-8min; (4) setting an experimental period interval as 10-12 hours; and (5) collecting data acquired by the gas sensor array, performing data processing for the acquired data, and computing so that a freshness value of the tilapia is obtained. The method is simple, convenient, rapid and effective.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Mobile phone curved glass typical defect online detection device and method

PendingCN110018178ASolve and overcome the disadvantages of artificial naked eye detectionFast online detectionOptically investigating flaws/contaminationRotary stageComputer graphics (images)
The invention discloses a mobile phone curved glass typical defect online detection device and method. The online detection device comprises a work-piece transmission device, wherein the work-piece transmission device comprises a transmission guide rail, a plurality of transparent objective tables, a motion control card and a motor, and a rotating table; a plane part detection device, a curve edgedetection device and a R angle part detection device for forming three stations are orderly arranged along a transmission direction of the work-piece transmission device; the online detection methodperforms previous training learning on the background and scratch, burning, edge breakage, pit and like typical defect sample images through a convolutional neural network, and original images collected at three stations are divided into multiple sub-images consistent with the size of the training sample, the segmented sub-images are quickly identified, thereby judging whether the original imageshave defects or judging the defect variety. The scratch, burning, edge breakage, pit and like typical defect sample images can be online detected in real time, and the detection device has the features of being fast, efficient, precise and stable.
Owner:SOUTH CHINA UNIV OF TECH

Method for measuring load threshold of geotechnical packing accumulated deformation state under cyclic loading

The invention relates to a method for measuring load thresholds of geotechnical packing accumulated deformation states under cyclic loading. According to the method, brick walls and sand bags are adopted to construct a filling model, so as to form a testing system along with loading equipment and a displacement sensor, and a cyclic loading test is performed on the filling model, so as to obtain a changing curve of accumulated deformation with loading times; then the changing curve of segmented single loading average deformation with the loading times is obtained through calculation, and a negative power function as shown in the specification is adopted to fit, so as to obtain a relation curve of a power exponent Pi value with the change of load levels; a function relation between the Pi value and the load levels is obtained by virtue of cubic polynomial regression, and the corresponding load levels when P is equal to 2, 1 and 0 are obtained through back calculation, so as to be used as the load thresholds delta t1, delta t2 and delta t3 for distinguishing different evolution states of the accumulated deformation, wherein an experimental basis is respectively provided for design and maintenance of ballastless and ballast track bed structures of railways by the delta t1 and delta t2. The method has the advantages of convenience in model manufacturing, low cost, simplicity in operation and clear distinguishing criterion, and the obtained load thresholds are accurate and reliable.
Owner:SOUTHWEST JIAOTONG UNIV

Method for detecting faults caused by foreign body pollution between electrified railway insulator plates based on affine invariant moment

The invention relates to a method for faults caused by foreign body pollution between electrified railway insulator plates based on affine invariant moment, which aims at solvating the problems of a complicated background of insulator problem detection and the like caused by much original image content. The method can be used quickly and accurately identifying and positioning insulators through overall image classification and by virtue of the affine invariant moment, and then can be used for carrying out fault detection on the insulators. The method comprises the following steps of: detecting, identifying and classifying shafts by virtue of a Hough transformation segment, thus obtaining an insulator type after setting the classified shafts as a background; then applying the affine invariant moment to extract the insulators in the insulator type; in order to solve the problem of different change of the angles of the insulators, carrying out straight-line fitting on the boundary curves of the insulators to obtain the rotation angles of the insulators; in order to avoid the loss of foreign body characteristics, amplifying the characteristics of the insulators by virtue of morphological dilation operation; in order to improve the local contrast of insulator images, dividing each piece of the image into a block to carry out local contrast control on each block; and then carrying out grey level value statistic on each row of the blocks, and finally identifying and positioning the faults through the width of each strip in a grey level statistical chart. The method based on prior classification disclosed by the invention simplifies the background of the insulators, efficiently improves the speed and accuracy of insulator identification and positioning, reduces the difficulty of fault detection, and provides an advisable reference for the insulating property detection of an electrified railway.
Owner:SOUTHWEST JIAOTONG UNIV

Lens detection method and device

The invention discloses a lens detection method and device. The method comprises the following steps: step 1, extracting pixels with brightness higher than a brightness threshold in an image shot by a to-be-measured lens based on the predetermined brightness threshold; step 2, in the extracted pixels, determining two pixels having the largest distance, and determining the distance between the two pixels; and step 3, comparing the largest distance with a predetermined distance threshold, and determining whether the to-be-measured lens is qualified according to a comparison result. By adoption of the lens detection method and device disclosed by the invention, the detection can be performed in a unified and objective manner to avoid the problems of high misjudgment rate and easy detection leakage caused by manual judgment, so that the detection accuracy is relatively high; and moreover, since the image processing method adopted by the lens detection method and device disclosed by the invention is relatively simple, it is easy to implement, the processing efficiency is relatively high, the detection time can be effectively shortened, which is conducive to improving the production efficiency.
Owner:NINGBO SUNNY AUTOMOTIVE OPTECH

On-line automatic detection device for pipe network leakage

ActiveCN102182934ATimely report the leakage situationEasy to usePipeline systemsFrequency spectrumSignal processing circuits
The invention discloses an on-line automatic test device for pipe network leakage and belongs to the technical field of detection of the pipe network leakage. The on-line automatic detection device comprises a water meter; and a sound sensor, a sound signal acquirement circuit, a time control device, a signal processing circuit, a comparison circuit, a communication module and a power supply are arranged in the water meter. Compared with the prior art, the on-line automatic detection device regularly and automatically collects and processes sound information in the pipe network through the sound sensor installed in the water meter and judges whether the pipe network has leakage after comparing with the standard frequency spectrum; due to automatic detection, the device is time-saving and labor-saving; moreover, the phenomenon that detection result and detection standard are inconsistent because manual detection of leakage depends on personal experience is avoided; and a detection result provided by the detection device has characteristics of objectivity and accuracy.
Owner:NINGBO WATER METER

Automatic testing system for power supply

The invention discloses an automatic testing system for a power supply. The automatic testing system comprises the power supply to be tested, a power supply switching module, a testing instrument device module, an automatic testing module, a monitoring module for the power supply to be tested, a testing device and upper computer software. The upper computer software generates corresponding testing data through compiling of a testing script, after receiving the testing data, the automatic testing device converts the testing data into corresponding interface data, and the whole automatic testing system is controlled to finish the testing process through sending of the interface data. The testing process includes the steps that the testing device is used for testing the power supply to be tested according to the interface data, the monitoring module for the power supply to be tested controlled to monitor the testing process of the testing device according to the interface data, the data in the testing process are recorded, the upper computer software receives the data recorded by the monitoring module through the monitoring module for the power supply to be tested, the recorded data are analyzed and compared after being received, and a testing conclusion is obtained. The whole testing process of the power supply can be rapidly, efficiently and automatically completed.
Owner:ZHUHAI XJ ELECTRIC +1

Method for detecting freshness of crab by utilizing electronic nose

InactiveCN105223240ATo achieve the purpose of freshness detectionThe test results are objectiveMaterial resistanceSensor arrayRoom temperature
The invention discloses a method for detecting freshness of crab by utilizing an electronic nose. The method comprises the following steps: (1) putting a to-be-detected crab sample into a sample container, sealing and standing for 30-50min at room temperature; (2) inserting a filtered gas probe of the electronic nose into the sample container, setting time as 40-60s and collecting headspace gas; (3) guiding the gas to enter into a gas sensor array, detecting and analyzing; (4) collecting and storing the related data of the gas through the following specific steps: 1) extracting response characteristic values of the gas sensor array, including an initial value, a stable value, a rise time and a rise speed, 2) in a DSP (Digital Signal Processor) built in the electronic nose, inputting the collected original response characteristic values of the electronic nose to the DSP and calculating an output signal-to-noise ratio spectrum signature value according to a solidifying nonlinear stochastic resonance algorithm, and 3) calculating a freshness value of the crab according to a freshness forecasting model and the signal-to-noise ratio spectrum signature value. The method provided by the invention is simple, convenient, high-speed and effective.
Owner:SHANGHAI INST OF TECH

Method, kit and oligonucleotide for detecting novel coronavirus

The invention discloses an oligonucleotide, a kit and a method for detecting novel coronavirus SARS-CoV-2, and relates to a primer and a probe for designing specificity aiming at Orf1ab, N and S generegions in a novel coronavirus genome. After nucleic acid in a sample is rapidly extracted, a one-step fluorescent RT-PCR technology is adopted to detect novel coronavirus nucleic acid. The method issimple to operate, and three target genes of the novel coronavirus are detected at the same time, so that missing detection can be avoided.
Owner:ACON BIOTECH (HANGZHOU) CO LTD

Lug piece breakage detection method for high-speed rail overhead line system supporting device based on HOG features and two-dimensional Gabor wavelet transformation

The invention discloses a lug piece breakage detection method for a high-speed rail overhead line system supporting device based on HOG features and two-dimensional Gabor wavelet transformation. According to the method, a rotating double-lug lug piece breakage failure is detected. The method comprises the following steps that a positive and negative sample library of a rotating double-lug body is built firstly; the HOG features of a positive and negative sample are extracted, and a feature descriptor of the sample is generated; on the basis of an AdaBoost algorithm, a Cascade classifier is trained, the trained classifier is utilized for carrying out classification and identification on an area where the rotating double-lug body in an image is located and an area where a non-rotating double-lug body in the image is located, and positioning of the rotating double-lug body in the image is completed; finally, the two-dimensional Gabor wavelet transformation is utilized for screening edge information of the rotating double-lug image, and therefore identification on fault cracks caused by the lug piece breakage failure is carried out. According to the method, a lug piece where the breakage failure happens can be accurately identified in a complex overhead line system hanging device image, and compared with a method of manual screening, the detection efficiency can be greatly improved.
Owner:SOUTHWEST JIAOTONG UNIV

Micro-flow controlled chip used for detecting erythrocyte osmotic fragility

The invention relates to a micro-fluidic chip used for testing erythrocyte osmotic fragility, which comprises a chip main-body, wherein, two solution inlets and a blood sample inlet are formed on the chip main-body; and a plurality of detection pools arranged inside the chip main-body are communicated with the blood sample inlet through a blood sample microchannel and communicated with the two solution inlets through a microchannel network that generates concentration gradient automatically. Based on the micro-fluidic chip, a test method of erythrocyte osmotic fragility comprises the steps asfollows: (1) blood samples are introduced into the different detection pools in the micro-fluidic chip through the blood sample inlet; (2) two NaCl solutions with different concentrations are introduced into the micro-fluidic chip through the two solution inlets at the same flow speed at the same time, and mixed with the blood samples in the detection pools; (3) erythrocytes in the detection pools are observed through a microscope and are shoot; and (4) the intact erythrocytes in each detection pool are distinguished in erythrocyte pictures and counted. The micro-fluidic chip reduces use of blood, reduces manual intervention, and has high detection speed and objective and accurate detection results.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Fluorescence PCR (Polymerase Chain Reaction) detection kit for group B streptococcus

The invention discloses a fluorescence PCR (Polymerase Chain Reaction) detection kit for group B streptococcus. The fluorescence PCR detection kit comprises the following components: a PCR reaction liquid, an enzyme mixed liquid, a group B streptococcus reaction liquid, an internal reference plasmid, a positive reference and a negative reference. The fluorescence PCR detection kit is used for overcoming the defects that more time is wasted by using a gold standard bacterial culture method, a serological diagnosis method has hysteresis and a gene sequence determination method is more complex. The fluorescence PCR detection kit has the advantages of high sensitivity, good specificity, strong repeatability, rapid and objective detection result and the like so as to have a wide application prospect in the field of in-vitro diagnosis of the group B streptococcus.
Owner:JIANGSU BIOPERFECTUS TECH CO LTD

Method and system for implementing connectivity detection

The utility model provides a connectivity detecting method. Based on the user's configured detection mode and the customized task information under the configured detection mode, the connectivity detection is carried out for the equipment to be examined; the calculation is conducted for the response message's parameters to obtain and store the statistic information. The utility model also provides a connectivity detecting system. The method and the system can objectively reflect the connectivity among the network equipment.
Owner:ZTE CORP

Nucleic acid dual fluorescence PCR (Polymerase Chain Reaction) detection kit for influenza A/B virus

The invention provides a nucleic acid dual fluorescence PCR (Polymerase Chain Reaction) detection kit for an influenza A / B virus. The detection kit comprises an RNA (Ribonucleic Acid) enzyme inhibitor, an RT-PCR (Reverse Transcription-Polymerase Chain Reaction) liquid, an enzyme mixed liquor, an influenza A / B virus dual reaction liquid, a positive control and a negative control, wherein the influenza A / B virus dual reaction liquid comprises a component (1) which consists of a pair of primers for detecting the influenza A virus and a probe for detecting the influenza A virus and a component (2) which consists of a pair of primers for detecting the influenza B virus and a probe for detecting the influenza B virus; and the enzyme mixed liquor comprises a Taq enzyme and a reverse transcription enzyme. By adopting the detection kit, the influenza A and B viruses can be detected at the same time, and the problem that only one influenza virus can be detected in one reaction in the conventional product is solved. The detection kit has the advantages of easiness and convenience for operating, high repeatability, quick and objective detection result and the like, and has a great application prospect in the field of in-vitro diagnosis of influenza viruses.
Owner:JIANGSU BIOPERFECTUS TECH CO LTD

Method of length detection and system thereof

The invention relates to the detection field and provides a method of length detection and a system thereof; the method comprises the following steps: a detection system which is provided with an image acquisition device is provided; the detection system is calibrated; images at two ends of a product to be detected are respectively acquired, and image processing is carried out; the length of the product to be detected is detected. In the invention, a high-pixel camera with high price is replaced by at least two low-pixel cameras, the production cost is reduced, the structure is rational, the operation is simple, the environmental requirements are low, the measuring precision is high by effective processing of image parameters, accurate length value of the product to be detected can be obtained, the error is reduced and the detection result is objective.
Owner:BYD CO LTD

Method and device for testing dynamic range of camera by utilizing closed LED (light emitting diode) light source lamp box

The invention relates to a method and a device for testing a dynamic range of a camera by utilizing a closed LED (light emitting diode) light source lamp box, and belongs to the field of testing. The method comprises the following steps of partitioning a closed box into two adjacent mutually independent first / second testing spaces; arranging a front plate with a camera testing hole in the front part of each testing space; respectively arranging an LED light source in the two testing spaces; respectively arranging a transparent testing card between each LED light source and each front plate; arranging movable sliding rails with movable sliding blocks in the longitudinal directions of the two testing spaces; arranging the LED light sources on the movable sliding blocks; connecting control ends of the LED light sources, control ends of the movable sliding rails and an image output end of camera lens to be tested with I / O ports of a control computer. According to the method and the device for testing the dynamic range of the camera by utilizing the closed LED light source lamp box, which are disclosed by the invention, an closed testing light source environment isolated from the outside is provided, the two light sources are completely independent without any crosstalk, and the configuration of optical parameters of the LED light sources and the adjustment of the distances and the positions of the LED light sources and a device to be tested are controlled by the computer, so that the whole testing device is convenient to operate, and the measurement accuracy is largely improved.
Owner:SHANGHAI RES CENT OF ENG & TECH FOR SOLID STATE LIGHTING

Green tea beverage quality analysis apparatus based on intelligent electronic nose system, and method

The invention relates to a green tea quality analysis apparatus based on an intelligent electronic nose system, and a method. In the prior art, detection on volatile gases in beverage samples is performed through human body organs, such that technical problems of subjective difference and harm on human body exist. A purpose of the invention is to solve the technical problems in the prior art. The apparatus comprises a gas collection unit, a gas sampling unit, a treatment unit and a control unit, wherein the gas collection unit comprises a gas chamber, a sample chamber, a first communication pipe and a second communication pipe, the gas chamber, the sample chamber, the first communication pipe and the second communication pipe form a loop-shaped circulation path, the gas sampling unit is connected with the gas chamber, the treatment unit and the gas sampling unit are connected, and a gas inlet mechanism, a gas outlet electromagnetic valve and the gas sampling unit are respectively connected with the control unit. According to the present invention, the electronic nose system is built, such that the detection result is comprehensive and objective, and hazard of sample gas on human health is avoided; and gas is subjected to circulation flow during gas sampling, such that gas mixing is uniform, and detection data is accurate.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Quantitative detection system of quantum dot mark test strip based on CMOS image sensor

InactiveCN101634632AFast and accurate qualitative detectionAccurately Realize Qualitative DetectionFluorescence/phosphorescenceLuminescent compositionsFiberFluorescence
The invention belongs to the field of biomedical medical apparatuses, particularly relating to a quantitative detection system of quantum dot mark test strip based on a CMOS image sensor and a method thereof. The system comprises a quantum dot mark test strip, a test strip bracket, a scanning system, a CMOS image sensor, a data processing device, an output displaying device, a printer, a keyboard and an IC card matched with the test strip, wherein, after reading an IC card parameter, the data processing device controls the motion of the test strip bracket so as to adapt to that the fiber optic probe of the scanning system automatically scans a test strip detecting zone and a quality control zone; the collected characteristic wavelength reflection fluorescence signal is transmitted to the data processing device by the CMOS image sensor for identifying optical density and calculating concentration, and the output displaying device displays the testing result. The invention can quickly and accurately realize quantitative or qualitative detection of single-component samples and multi-component samples and can dynamically monitor an immunity chromatography reaction process. The system of the invention has the characteristics of high detection sensitivity, object result, flexible utilization and the like.
Owner:马义才
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