663results about How to "Test results are stable" patented technology

The invention relates to an online detection and control method of the periphery of a filtering rod and a device. The device is characterized by mainly comprising a parallel light source (1), a linear array CCD (Charge Coupled Device) detector (2), a scanning motor (3), a signal processing module (4) and an executing mechanism (6), wherein the parallel light source (1) and the linear array CCD detector (2) are respectively positioned at the two opposite sides of the filtering rod; the scanning motor (3) drives the parallel light sources (1) and the linear array CCD detector (2) to rotate around the filtering rod; the signal input end of the signal processing module (4) is connected with the signal output end of the linear array CCD detector (2); and the signal output end of the signal processing module (4) is connected with the control end of the parallel light source (1), the control signal input end of a motor driver of the scanning motor and the signal input end of the executing mechanism (6) simultaneously. The invention has the advantages that the accuracy is high (the size of the received image element is 10mum), no influence is caused by various interference factors such asvibration, noise, temperature, dust and barometric fluctuation and the like on a site, and the detection result is accurate, stable and reliable.

The invention discloses a stereo coding target for calibrating an internal parameter and a distortion coefficient of a camera and a calibration method thereof. The stereo coding target is formed by four flat plates at a certain angle, the flat plates are provided with same circular characteristic pattern arrays, and the center of mass thereof is a to-be-extracted mark pint; and connecting positions of the flat plates in the vertical direction are provided with two quadrangular coding patterns used for coding of the four flat plates. The calibration method includes: firstly photographing a stereo coding target image; and extracting circular characteristic patterns in the image and the coordinate of the center of mass of the quadrangular coding patterns, wherein the quadrangular coding patterns are used for coding of the four flat plates, and the image coordinate and the physical coordinate of the center of mass of the circular characteristic patterns are used for calculating the internal parameter and the distortion coefficient of the camera. Compared with the prior art, according to the stereo coding target and the calibration method thereof, only one stereo coding target image needs to be photographed, the requirement of the depth of field of a camera lens is not high, the stereo coding target and the calibration method thereof are applicable to calibration of a multi-camera system, the mark points in different flat plates can be rapidly distinguished, the calibration process is simple, and the precision is high.

The invention provides a loading device for testing concrete chloride ion permeability by coulometry. A steel bottom plate is provided with two screw holes; two parallel screws are inserted into the screw holes; an underdraught steel plate, an overdraught steel plate and a top plate which are parallel to the steel bottom plate are sleeved on the screws sequentially; a jack is arranged between the top plate and the overdraught steel plate; a dynamometer is arranged between the overdraught steel plate and the underdraught steel plate; the steel bottom plate is provided with a convex steel support upwards; the underdraught steel plate is provided with a convex steel pressing head downwards; a overdraught steel plate positioning bolt cap is sleeved on one screw on the upper part of the overdraught steel plate; and a top plate positioning bolt cap is sleeved on the other screw on the upper part of the top plate. The invention also provides a method for testing the concrete chloride ion permeability by the coulometry by utilizing the loading device. The loading device solves problems that the conventional concrete chloride ion permeability testing device cannot apply bending loads on tested pieces, cannot simulate the actual load-up condition of in-service concrete members, and cannot measure the concrete chloride ion penetrability under the condition of the bending loads.

The invention relates to an air filtering material tester which comprises a high efficiency filter, a corona neutralizer, a filter clamp, an aerosol generator, a laser particle counter, a differential pressure meter and a computer, wherein an outlet of the high efficiency filter is respectively connected with an inlet of the corona neutralizer and an inlet of the aerosol generator through pipelines, and an outlet of the aerosol generator is connected with the inlet of the corona generator through a pipeline; the filter clamp is formed by hermetically assembling an upstream clamp and a downstream clamp, wherein the upstream clamp comprises an air inlet pipeline and an air inlet chamber, the downstream clamp comprises an air outlet pipeline and an air outlet chamber, and the outlet of the corona neutralizer is connected with the air inlet pipeline of the upstream clamp; the laser particle counter is connected with the air outlet pipeline of the downstream clamp, and the differential pressure meter is respectively connected with the air inlet chamber and the air outlet chamber; and the laser particle counter and the differential pressure meter are respectively connected with the computer. The air filtering material tester has the advantages of high detection efficiency and sensitivity and fully-automatic control of detection process.

The invention relates to an on-line quality detection system of motion belt material, comprising a parallel image sensor group constituted by at least two high-resolution linear CCD, a set of image transmission and process systems composed of a push-in local area network constituted by at least two DSP and a lighting system suitable for motion belt material. A high-speed CCD signal digital multiple circuit, an automatic control circuit of CCD sampling frequency based on the motion belt material speed, a data communication interface circuit between the CCD and DSP are built, then the real-time acquisition of the motion belt material image is realized without an image acquisition card and at the same time the strong image processing function of TMS320C6416 is applied on the image processing for the quality detection the motion belt material thus the collected image does not deform. The system is especially suitable for on-line quality detection of the motion belt material such as plastic film, textile fabric, paper or the like.

A water surface target detection tracking integration method facing a unmanned ship application is disclosed. The method comprises the following steps of S1, training a target detection nerve network model; S2 carrying out target detection and putting a detection result into a set Bd; S3, detecting a target tracking result, inputting the target tracking result of a previous frame of picture into the target detection nerve network model so as to carry out detection, retaining a tracking frame which does not lose a target, and putting the tracking frame into a set Bt; S4, adjusting sizes and positions of a target frame and the tracking frame in a fine mode; S5, determining whether there is a new target; S6, carrying out target tracking; and S7, continuously tracking m frames, and then repeating the step2 to step7 till the last frame of picture is tracked. In the invention, advantages of target detection and target tracking are combined, accuracy of the method is high and a speed is fast, and simultaneously stable target position information can be acquired; and effectively technology guarantee is provided for autonomous obstacle avoidance of an unmanned ship.

The invention relates to a detecting test paper, in particular to a dry chemical test paper for detecting the content of the analyzed object in the blood sample. The detecting test paper comprises a sample adding layer, a reacting layer, a base plate and a liquid-locking component, wherein the sample adding layer, the reacting layer and the base plate are vertically arranged from the top to bottom; at least one side of the reacting layer is provided with the liquid-locking component; and the speed of the liquid-locking component for absorbing the liquid is less than or equal to the speed of the reacting layer for absorbing the liquid. As the liquid-locking component is capable of absorbing the redundant liquid sample, the redundant sample does not flow out of the range of the test paper, and the phenomenon of polluting the environment or the sample contacting to the detector is avoided.

The invention relates to the method used to confirm asphalt mixture shear strength, which adopts single shaft penetration test firstly. It includes the following steps: laying a steel pressure head on the test piece and pressurizing; calculating the shear strength by three-dimensional finite element calculation and mechanics formula derivation. This can confirm that the diameter of the steel pressure head is 28.5mm; the size of the test piece is 100*100mm; penetration strength is 1MPa; Poisson ratio is 0.35. The calculating formula of the shear strength is as follows: Tau=intensive parameter*penetration pressure. The penetration pressure is the damage inflection point value of the penetration strength curve.

The invention relates to an electromagnetic tracking method based on an inductance coil. The inductance coil detects the magnitude of a magnetic field around a current carrying wire, so as to determine a position relationship between a moving object and the current carrying wire. Through the research on the number and the arrangement of the inductance coils, an electromagnetic-guidance-based tacking method consisting of seven inductance sensors is designed, so the detection of a magnetic signal under different wire arrangements and complicated magnetic field environment is well realized so as to determine the position. A detection result is more stable, reliable and effective, and the device has the characteristics of simpleness, reliability and wide application fields.

The present invention provides a method of identifying outlier traffic data, characterized in that the method firstly collects the traffic data, calculating data average local outlier factor, then judging the outlier data by one of the following two norms: the maximal m data of the average local outlier factor is outlier data, or the average local outlier factor more than the preset threshold is outlier data, finally the identified outlier factor is corrected by deleting or adopting filter method, or analyzing the concealed message contained in the outlier data. The method effectivily detect outlier data of boundary and interior, the effect precedes the outlier detecting method based on the statistics.

The invention discloses a storage battery performance on-line monitoring system and a storage battery performance on-line monitoring method. Each storage battery on-line monitoring unit comprises an acquisition unit, an internal resistance measuring unit and a communication unit; batteries in a storage battery pack are divided into a plurality of units; a load and the batteries in each unit form a closed-loop circuit, and the batteries are discharged; the acquisition unit acquires discharging parameters of each battery; the internal resistance measuring unit calculates the internal resistance of each battery according to acquired information and uploads the internal resistance to the communication unit; the communication unit accesses a local area network and transmits data to a server; after receiving the data, the server analyzes, processes and stores the data; the data are published in a webpage form through a built-in web publishing function; and a computer in the local area network checks the situation of each storage battery pack by accessing a webpage. By adoption of a multi-cycle on-line testing method, safety and reliability are realized, the discharging internal resistance is tested in a grouped mode, and during test, safety operation of a power system is not influenced. The invention has the advantages of stable and accurate test result and convenient testing process.

The present invention relates to protein chip based on labeling streptavidin-biotin technology. The hybridization reaction includes the following steps: dropping tested sample to sample applied chip and washing out redundant sample with elution liquid; blocking wtih blockage liquid, washing and air drying; dropping protein marked with biotin diluted by blockage liquid, washing and air drying; anddropping fluorescnet or enzyme labeled streptavidin diluted by blockage liquid, washing and air drying. The protein chip of the present invention is used in determining antigen and antibody, and detecting specific matter combined with protein. The improved method of the present invention has clear, stable and reliable test results and wide application range.

The invention discloses a detection method of an aquaporin-4 autoantibody, a fusion expression virus vector and application thereof. The virus vector is pCDH-MCS-AQP4-EF1-copGFP, the nucleotide sequence of which is shown as a sequence table SEQIDNO.2. The invention further discloses application of the fusion expression virus vector in improving the clinical diagnosis and treatment level of ophthalmoneuromyelitis and multiple sclerosis. By adopting immunofluorescent cytochemical staining with higher sensitivity and specificity combined with a flow cytometric detection technology, the AQP-4 antibody is quantitively and qualitatively detection clinically, so that the detection result is more stable, and the labor and the time cost are extremely saved. The project is established to extremely improve the diagnosis and treatment level of ophthalmoneuromyelitis and multiple sclerosis, so that the labor capacity and the living quality of the patient are improved, and huge social and economic benefits are generated.

The invention discloses an experimental method for measuring maximum dry density of a road base material, which comprises the following steps: filling a mixture into a test die, fixing the test die on a vibration gauge, and vibrating and compacting the test die for 100 to 120 seconds; calculating the dry density of the sample, repeating the experiment for five times to obtain five groups of blended water contents and dry densities of the sample, and drawing a relation curve of the water contents and the dry densities, wherein the horizontal coordinate is the blended water content, the longitudinal coordinate is the dry density, the dry density corresponding to a peak value of the curve is the maximum dry density and the corresponding water content is the optimal water content; and parameters of the vibration gauge are configured as follows: 30+ / -2Hz of vibration frequency, 7.6+ / -0.2kN of exciting force, 1.4+ / -0.2mm of nominal amplitude, 3.0+ / -0.4kN of working weight, 1.2+ / -0.2kN of loading system, and 1.8+ / -0.2kN of unloading system. The method has the advantages of simple and convenient operation, reliable result and good repeatability.

The invention relates to a device and a method for determining radial permeability of a compact rock core. The device comprises a rock core clamping device, an oil pressure pump, a pressurizing pump, an intermediate container, a pressure control system, a pressure acquisition system and a data analysis system, wherein the rock core clamping device is used for clamping a rock core, the oil pressure pump is used for applying confining pressure to the rock core from the axial direction to the end surface of the rock core, the pressurizing pump is used for applying air pressure to the rock core clamping device, the pressure control system is used for controlling the pressure, the pressure acquisition system is used for acquiring the air pressure of the rock core clamping device and the data analysis system is used for fitting data points of the pressure which is measured in an experiment and is varied along the time and calculating the permeability of the tested rock core in the radial direction.

The invention relates to a method for preparing a 12k multifilament sample and testing the stretching performance of the sample. The carbon fiber multifilament sample is obtained by preparing a gum from TDE-85, powdery DDM and acetone, impregnating and curing. When the carbon fiber multifilament sample is tested, the carbon fiber multifilament sample to be tested is wrapped by 80 or 100 mesh carborundum cloth and W28A metallographical sand paper. The method which adopts mechanical impregnation sample preparation allows a defect of the unstableness of manual sample preparation to be effectively overcome, no reinforcements to be needed by the cured sample, and the good exertion of performances of the whole multifilament to be guaranteed and makes test results be rapidly and stably obtained,and the sample can satisfy production requirements and technological indexes provided by manufacturers.

The invention relates to a system and a method used for online detecting the defect of a fluoroplastic film, comprising a parallel image sensor device which consists of a plurality of high-resolution line array CCDs so as to obtain line array images, a control device used for the image sensor array, a control device of the line array CCD image sensor arrays is formed by a plurality of industrial control computers and touch screens and can achieve the synchronous control on a plurality of line array CCD cameras, an image transmission and processing device which is connected with the parallel image sensor device, consists of an industrial control local area network consisting of a plurality of industrial control computers and can achieve the parallel data transmission and data processing of a plurality of line array CCD sensors, and an illumination device which is suitable for the characteristics of the movable belt-shaped enwinding materials. The system and the method firstly apply the secondary differential of the pixel point match for the online detection of the fluoroplastic film, and avoid the measurement error caused by film motion. The system and the method can be widely applied to the industries such as avigation, electronics and electrics, chemical engineering, machines, building, textile, food, medical treatment and the like.

The invention relates to a method for measuring glycosylated hemoglobin content, which comprises the following steps of: a, uniformly mixing a whole blood sample and hemolytic liquid; b, adding an appropriate amount of hemolyzed sample into latex suspending in glycine buffer solution; c, respectively adding an antibody B reagent and an antibody A reagent after preset time; d, uniformly mixing andreading a scattering value through a specific protein analyzer under the condition of single-wavelength light irradiation; and e, reading the glycosylated hemoglobin content from a standard curve diagram according to the scattering value. The glycosylated hemoglobin content of the blood sample can be directly determined without separately measuring the total hemoglobin content and the glycosylated hemoglobin content of the blood sample by taking fixed-time nephelometry as a detection principle; and antibody working solution does not need preparing in advance, so that the effective service time of the reagents is prolonged, the operating steps are simplified and the measuring time of the sample is shortened.

The invention discloses a detection device and a detection method of nitrite or nitrate content. The detection device comprises a peristaltic pump, a flowing cuvette, a light source, an optical receiver, a cadmium ring and seven three-way electromagnetic valves, wherein sampling, circulation, developing, reduction and waste discharging are realized via controlling of the peristaltic pump and selection of the three-way electromagnetic valves, so as to shorten the flow path of the detection device, and ensure high integration level, small size and on-line analysis suitability. Via circulation design, the reaction efficiency is greatly improved; reaction products in the whole loop are uniform in concentration; an average value can be obtained via repeated measurement; the parallelity and the stability are greatly improved. Moreover, the cadmium ring is taken as a reduction component, and a sample solution to be detected flows in the cadmium ring at a certain speed, so that not only is the reduction efficiency improved, but also repeated filling is avoided, and the operation is convenient and fast; use of poisonous and harmful reagents is avoided.

A protein chip for prenatal diagnosis features that the protein or polypeptide array is sequentially arranged on solid substrate for testing, recognizing, discriminating and diagnosing the protein. It is prepared by loading the dot matrix of the antigens of Toxoplasma, rubella, cytomegalovirus and herpes simplex viruses A and B, positive reference and negative reference in a same cavity on biochip. Its advantages are one-step reaction for different results, high speed and sensitivity, and high stability and reliability.

The invention provides a wireless terminal test system, which comprises a tested piece, a test antenna, a reflecting surface, an absorbing screen, a controller and a power detection device, wherein the tested piece is the wireless terminal; the reflecting surface is used for carrying out total reflection on wireless signals transmitted by the tested piece; the absorbing screen is used for absorbing radio waves; the controller is connected with the tested piece for controlling the tested piece to transmit the wireless signals; the power detection device is used for detecting the power of the wireless signals received by the test antenna; the position relation among the tested piece, the test antenna and the reflecting surface is corresponding to the same ellipsoid; the tested piece and the test antenna are arranged at two focal points of the same ellipsoid respectively; the reflecting surface is arranged on the ellipsoid; and the absorbing screen is arranged on the straight line between the tested piece and the test antenna. The wireless terminal test system of the invention can improve the test efficiency and reduce the cost.

The invention provides a formaldehyde gas sensor. The formaldehyde gas sensor comprises a gas inlet housing, a seal housing, a gas inlet filter membrane, a membrane electrode module, a cavity support, an anode lead and a cathode lead, wherein the gas inlet housing is provided with a gas inlet; the gas inlet filter membrane is attached to the exterior of the gas inlet of the gas inlet housing; the seal housing is embedded in the gas inlet housing to form a hollow closed housing; the anode lead, the membrane electrode module, the cathode lead and the cavity support are orderly arranged in the closed housing from left to right; the membrane electrode module comprises a solid polymer electrolyte, and an anode and a cathode which are arranged on the two sides of the solid polymer electrolyte, respectively; the anode and the cathode both are gas diffusion electrodes, and each gas diffusion electrode comprises a two-layer structure with a gas diffusion layer and a catalytic layer. The formaldehyde gas sensor is capable of detecting tested gas at normal temperature, and is low in production cost, long in service life, high in detection sensitivity and stable in detection result.

The invention discloses a device and a method for online detection of water content of plant leaves. The device comprises a detection box, a first electrode piece, a second electrode piece, a frequency measuring device and a computer, an SAM resonance detector and a stabilized-voltage power source are arranged in the detection box, the stabilized-voltage power source is electrically connected with a power source end of the SAM resonance detector, two detection ends of the SAM resonance detector are electrically connected with the first electrode piece and the second electrode piece respectively, an output end of the SAM resonance detector is electrically connected with an input end of the frequency measuring device, and an output end of the frequency measuring device is electrically connected with the computer. The method includes detecting a plant leaf to be detected by the SAM resonance detector, subjecting frequency of signals output by the SAM resonance detector to nonlinear random resonance processing to acquire a feature value M, and substituting the feature value into a water content proportion precasting formula to calculate to acquire the water content of the plant leaf. By the device and the method, the water content of the plant leaves can be quickly and accurately detected in an online and lossless manner.

The invention relates to a K-SVD learning dictionary based woven fabric texture flaw detection method. The whole woven fabric texture image is decomposed into multiple sub-images, a flaw contained sub-image is obtained by discrimination, and the position of a flaw of a fabric is determined according to the position of the flaw contained sub-image; and flaw discrimination is realized by comparing and reconstructing the sub-images, all the sub-images are unfolded into column vectors and then combined to obtain a test sample image matrix, discrete cosine transform is selected for an initial dictionary, an initial sparse coefficient matrix is solved from the initial dictionary and a training sample image matrix via an orthogonal matching and tracking algorithm, K-SVD dictionary learning is carried out on the training sample image matrix to obtain a dictionary, a sparse coefficient matrix is solved from the dictionary and the test sample image matrix via the orthogonal matching and trackingalgorithm, the test sample image matrix is reconstructed, and column vectors of a reconstructed sample image matrix are converted into reconstructed sub-images. According to the method of the invention, detection is rapid and accurate, and a detection result is stable and highly adaptive.

The invention provides a tunnel detector. The detector comprises an antenna box, an elastic telescoping mechanism, a direction adjusting mechanism and a support mechanism, wherein the antenna box is used for filling a radar antenna used for detecting the quality of a tunnel lining; the elastic telescoping mechanism is arranged below the antenna, is connected with the antenna box, and is used for enabling the radar antenna to be always in contact with the surface of the tunnel lining during detecting; the direction adjusting mechanism is arranged below the elastic telescoping mechanism, is connected with the elastic telescoping mechanism, and is used for enabling the radar antenna to angularly rotate so as to detect the different positions of a tunnel; the support mechanism is arranged below the direction adjusting mechanism so as to support the antenna box, the elastic telescoping mechanism and the direction adjusting mechanism. According to the tunnel detector provided by the invention, the radar antenna can be always closely contacted with the surface of the tunnel lining in the process of detecting, so that a detection result is stable; and in addition, the tunnel detection device provided by the invention can detect the different positions, such as the vault, haunch or side wall of the tunnel, and is flexible to adjust, and strong in applicability.

The invention discloses a device and a method for detecting water content of fresh tobacco leaves. The device comprises a detection box, a first electrode plate, a second electrode plate, a frequency measuring device and a computer, wherein the detection box is internally provided with an SAW (Surface Acoustic Wave) harmonic vibration detector and a stabilized voltage supply; the stabilized voltage supply is electrically connected with a power supply end of the SAW harmonic vibration detector; two detection ends of the SAW harmonic vibration detector are electrically connected with the first electrode plate and the second electrode plate respectively; the output end of the SAW harmonic vibration detector is electrically connected with the input end of the frequency measuring device; the output end of the frequency measuring device is electrically connected with the computer. With the method, the fresh tobacco leaves to be detected are detected through the SAW harmonic vibration detector, a characteristic value M is obtained after nonlinear stochastic resonance processing of frequency of output signal of the SAW harmonic vibration detector, and the characteristic value is substituted into a forecast formula of proportion of the water content to calculate and obtain the water content of the fresh tobacco leaves. According to the device and the method, the water content of the fresh tobacco leaves can be quickly and accurately detected in a lossless manner.

The invention relates to a scanning type upper rectification phosphorescence distributed tester, which comprises: a light-electricity changing and signal processing system, a data collecting and controlling system, a phosphorescence exciting light path and a phosphorescence receiving light path, wherein the phosphorescence exciting light path comprises an infrared semiconductor laser and a spherical adjusting mirror, a dichroic mirror and a focus / collimation lens and a scanning plane on the direction of the exciting light beam from the infrared semiconductor laser, wherein the scanning plane is used to lay the paper which is on the focus plane of the focus / collimation lens; the phosphorescence receiving light path is formed by the focus / collimation lens, the dichroic mirror, and a light filter, a rear focus mirror, an one-focus narrow slit baffle and the light-electricity changer; the one-focus narrow slit baffle is positioned on the rear focus plane of the rear focus mirror.

The invention provides an indoor heat environment comfort evaluation thermal manikin system and an indoor heat environment comfort evaluation method. The indoor heat environment comfort evaluation thermal manikin system comprises a thermal manikin, a measuring and control system and an evaluation system. The thermal manikin has good joint motion capability, and has 16 independent measuring and heating control split regions; the split regions sufficiently consider the physiological structure characteristics of a human body and the heat exchange characteristics of the human body in the heat environment with the environment. The indoor heat environment comfort evaluation thermal manikin system has the advantages that the application range is wide; the system can be applied to heat environment in various fields such as civil use, military use, aero-space and navigation; the heat environment parameters can be directly and accurately measured; the heat environment comfort can be objectively evaluated; the test and the evaluation result is stable and accurate; the repeatability is high; the indoor heat environment comfort evaluation thermal manikin system conforms to the real human body heat state; the reasonableness and the reliability are realized.

The invention relates to a impulse valve impulse valve detection device and method, whose apparatus is consisted of air compressor, air container, water-oil separator, pressure reducing valve, voltagestabilizing air pocket, inspected pulse valve, blowing pipe, pressure sensor, target, acceleration transducer, data collection card and computer and, detecting and measuring acceleration and voltagestabilizing air pocket of impulse valve by measuring pressure of shell of pipe of blowing pipe, acceleration created by target and pressure change of voltagestabilizing air pocket property. The content tested by the invention is overall, complete, with good versatility, which can supply scientific foundation for designing and choosing impulse valve, avoiding economic lose caused by incorrect choice and doing good to impulse bag dust catcher reaching the best effect of ash removal.

The invention relates to a computer image processing technology and discloses a method for predicting the water content of tea on the basis of near-infrared hyperspectral textural feature modeling. The method comprises the steps of carrying out hyperspectral data acquisition on tea leaves, extracting textural features and spectral features of acquired data, and brightening a prediction model to finally obtain the predicted water content of the tea leaves. The method disclosed by the invention has the advantages that the computation is convenient and fast, the steps are simplified, and compared with the traditional determination method, the method has higher accuracy rate and determination speed and higher application value.