694 results about "Test region" patented technology

The invention provides a titanium plate performance analysis method and system, and relates to the technical field of metal material detection.The method comprises the steps that an optical scanner is adopted to establish a three-dimensional structure on the surface of a titanium plate, and test areas are divided; synchronously acquiring stress, hardness and conductivity data of a test point by using a multi-probe collaborative detection device; constructing a dual-branch feature extraction network, wherein the dual-branch feature extraction network comprises a surface topography feature branch and a physical feature branch; performing statistical integration on the features in the test area, calculating distribution features and determining a weight coefficient; and generating a performance analysis result through feature fusion and a multi-task output layer, and finally determining the performance grade of the titanium plate. According to the method, deep fusion of morphology information and physical characteristics is realized, and the accuracy and reliability of titanium plate performance evaluation are improved.

The present invention relates to an in-situ micro-nano impact indentation testing instrument, falling within the technical field of material micromechanical testing. The instrument comprises a nitrogen generation module, an environmental chamber, a high / low temperature loading module, an “optical-infrared” in-situ monitoring module, an “electromagnetic-piezoelectric” coupling impact module, etc. After the nitrogen is introduced into the environmental chamber and the test area is determined by microscopic imaging, the “electromagnetic-piezoelectric” coupling impact module can drive an indenter to indent a specimen. An acoustic emission sensor embedded in the high / low temperature loading module can monitor the surface crack propagation of the specimen. The “optical-infrared” in-situ monitoring module can perform real-time high-speed optical imaging and infrared imaging on the impact indentation process. The present invention can perform micro-nano impact indentation testing on the material at high or low temperatures.

The invention is applicable to the technical field of PCB testing, and particularly relates to a PCB electrical performance testing method, which comprises the following steps of: acquiring test object information; wherein the object information comprises a PCB image and at least one test area, the PCB image corresponds to the PCB and reflects the circuit structure of the PCB, the test area is marked on the PCB image, and the test area comprises a main test position and an auxiliary test position; when an electrical performance test instruction is received, contact judgment information is obtained based on the test object information; when it is detected that the auxiliary test probe is in stable contact with the auxiliary test position, the control device controls the main test probe to continuously send test signals and collect test results in real time, and test analysis information is obtained based on the test results. According to the PCB electrical performance test method provided by the embodiment of the invention, the problem of high test error caused by asynchronous actions of the main test probe and the auxiliary test probe can be improved.

A method for analyzing a sample includes introducing the sample into a vessel including a cation-exchange resin, where the cation-exchange resin has a high affinity to one or more interferent species in the sample, directing the sample through the cation-exchange resin to thereby capture one or more interference species in the cation-exchange resin to purify the sample, and releasing the purified sample from the vessel. Additionally, a method for analyzing a sample includes receiving an image depicting a diagnostic test region and a color reference chart, converting a test region image portion of the image to an analytical color space, determining first and second coordinate values characterizing the test region image portion in the analytical color space, and providing a quantitative measurement of an analyte of interest in the sample based on the first and / or second coordinate values and a predictive formula based on the color reference chart.

The invention relates to the technical field of camera testing, in particular to a camera triangulation distance measurement detection method. Comprising the following steps: selecting a tested camera, and adjusting the position and angle of the camera; according to the positions of the two targets in the image, setting test areas corresponding to different view field angle pictures, and adopting an area detection mode; angular point detection is carried out on the set area, the angular points and sub-pixel-level angular points are obtained, and checkerboard center angular points are judged and corrected; according to a distortion calibration model, selecting a corresponding function to carry out distortion removal calculation on the angular point to obtain a normalized distortion-removed angular point coordinate, and converting the normalized distortion-removed angular point coordinate into an actual distortion-removed pixel coordinate; calculating the calculation distance of two target angular points of each image, establishing a normalized three-dimensional coordinate, calculating the deviation angle of the left and right angular points by using the three points, and combining the measured parameters to obtain the calculation distance of the two angular points; and calculating a precision error. According to the technical scheme, the accuracy of the internal reference calibration data and the reliability of the distortion model can be effectively verified.

The application relates to the field of concrete testing, in particular to a concrete seamless floor strength testing device and an operating method thereof. The concrete seamless floor strength testing device comprises a mounting frame, a moving driving part one, a connecting table one and a dynamic rebound apparatus; the upper end of the mounting frame is provided with the moving driving part one; the driving end of the moving driving part one is provided with the connecting table one, and the moving driving part one controls the up-down movement of the connecting table one; three dynamic rebound apparatuses are arranged on the connecting table one; the device further comprises a moving driving part two, a connecting table two and a cylinder; the connecting table one is provided with the moving driving part two; the driving end of the moving driving part two is provided with the connecting table two; three cylinders are arranged on the connecting table two; three groups of concrete seamless floor strength data are collected by the three dynamic rebound apparatuses for parallel comparison, so that the error is reduced, and the test area of the dynamic rebound apparatus is protected by the cylinder.

The invention relates to a uniformity detection method and device for a silicon-based material and a computer readable storage medium. Comprising the following steps: obtaining test luminescence brightness values corresponding to a plurality of test areas of a to-be-detected silicon-based material in a photoluminescence test process, wherein the plurality of test areas cover the whole surface area of the to-be-detected silicon-based material; according to a first standard curve of the silicon-based material to be detected, each test luminance value is converted into a test doping concentration, and the first standard curve represents a corresponding relation between the doping concentration and the luminance value; according to a membership relationship between the plurality of test doping concentrations and a preset doping concentration range, counting the total number of test qualified areas with qualified doping concentrations in the plurality of test areas; and detecting the doping concentration of the to-be-detected silicon-based material according to the total number of the test qualified areas and the total number of the test areas corresponding to the plurality of test areas. By adopting the method, the detection effect of detecting the uniformity of the silicon-based material is improved.

The invention provides a method for measuring the thickness of an epitaxial layer. The method comprises the following steps: providing a substrate; forming a doped test region in the substrate through an ion implantation process; forming an epitaxial layer on the substrate, wherein a doping concentration difference exists between the epitaxial layer and the doping test region; and based on the doping concentration difference between the epitaxial layer and the doping test region, performing thickness detection on the epitaxial layer on the doping test region through a Fourier transform infrared spectrometer to obtain the thickness of the epitaxial layer. According to the method, the thickness of the epitaxial layer can be directly measured on the production line of the semiconductor manufacturing process, the doping testing area is formed by conducting ion implantation on the substrate, the doping concentration difference exists between the doping testing area and the epitaxial layer, and therefore the testing principle of a Fourier transform infrared spectrometer (FTIR) is met. According to the method, the thickness of the epitaxial layer can be accurately monitored in real time without damaging the wafer, and the stability of semiconductor production and manufacturing is greatly improved.

The invention relates to the technical field of friction coefficient measuring devices, and discloses a device for testing the friction coefficient of an anti-skid coating of a cultivation work ship deck. Comprising a testing platform, a friction coefficient testing mechanism arranged below the testing platform, a driving mechanism arranged on the testing platform and used for driving the friction coefficient testing mechanism to horizontally move, and a partition assembly and a water spraying assembly arranged in the middle of the lower surface of the testing platform; through the arrangement of the high-pressure nozzles, in the moving process of the testing platform, high-pressure gas can automatically clean a deck testing area through the high-pressure nozzles, dust attached to the surface of a deck is effectively removed, manual pre-cleaning is not needed, the testing efficiency is remarkably improved, meanwhile, seawater is sprayed to the designated testing area through the water spraying assembly, and the testing efficiency is improved. The environment of the residual seawater on the deck in the actual operation of the cultivation work ship is accurately simulated, and the technical problems that an existing portable sliding friction instrument needs to be manually cleaned and cannot simulate the residual seawater environment are solved.

The invention discloses a rapid aging test device and evaluation method for an LED advertising lamp box, and relates to the field of aging test devices.The rapid aging test device comprises an end base and a supporting table, a lower test area is fixedly arranged on the upper side of the end base, a middle test area is installed on the upper side of the lower test area, and an upper test area is installed on the upper side of the middle test area; a top frame is fixedly mounted at the top of the upper test area, a supporting frame is connected to the bottom of the end seat, a base is fixedly connected to the bottom of the supporting frame, universal wheel mounting hole positions are formed in the bottom of the base, and the base is placed in the aging test room. According to the rapid aging test device for the LED advertising lamp box, the three-dimensional space of a test room is fully utilized through the layered and partitioned design, the containing capacity of a unit area is greatly improved, space waste caused by plane placement is avoided, LED lamp boxes of multiple batches and multiple models can be tested at the same time, and the test efficiency is improved.

Provided herein are systems and methods for collecting biological samples. The sample may be collected using a sample collection device, where the device is configured to prevent oxidation of the sample within the device. The sample collection device may include a component that absorbs oxygen within the device. The sample collection device may be used to preserve the sample for transport. The sample collection device may be used to preserve the sample for later analysis. The sample collection device may include a membrane with one or more test areas for detecting one or more target analytes within the sample.

A manufacturing method includes providing a substrate including a circuit region and a peripheral region, wherein the peripheral region includes a plurality of test areas; performing a via-forming process on the first substrate, wherein the via-forming process includes forming a test cell in each test area; performing a test cell inspection step to the test cells and comparing the inspection result with inspection standard to obtain a comparison result; based on the comparison result, determining whether the parameters of the via-forming process need to be modified, or whether at least a through via or cavity of the substrate is qualified or needs to be reworked, or whether the substrate needs to be scrapped; and when the through via or cavity is determined to be qualified, forming a conductive layer in the through via or disposing an electronic unit in the cavity.

A first polymer layer is formed across a package region and a test region. A first metal pattern is formed in the package region and a first test pattern is simultaneously formed in the test region. The first metal pattern has an upper portion located on the first polymer layer and a lower portion penetrating through the first polymer layer, and the first test pattern is located on the first polymer layer and has a first opening exposing the first polymer layer. A second polymer layer is formed on the first metal pattern in the package region and a second test pattern is simultaneously formed on the first test pattern in the test region. The second polymer layer has a second opening exposing the upper portion of the first metal pattern, and the second test pattern has a third opening greater than the first opening of the first test pattern.

The invention relates to the technical field of measurement and testing, in particular to a leakage detection method and system for transformer oil tank production, and the method comprises the steps: dividing a to-be-detected oil tank into a plurality of test regions; determining an ideal net pressure attenuation rate by using the average pressure drop rate, the pressure change rate corresponding to the temperature change and the volume change amount of the oil tank cavity in the target time period in the target test area; determining a pressure attenuation deviation degree by using the ideal net pressure attenuation rate and the actually measured net pressure attenuation rate; determining an acoustic activity weight by using the acoustic activity degree of the acoustic signal in the acoustic event and the background noise average energy of the plurality of test areas in the acoustic event; and determining a regional leakage comprehensive index by using the acoustic activity weight and the pressure attenuation deviation degree, and further determining the leakage detection condition of the oil tank by using the regional leakage comprehensive index. According to the technical scheme, the accuracy and reliability of leakage detection are effectively improved, environment temperature interference is effectively eliminated, and background noise changes are dynamically adapted.

The invention discloses a nozzle voltage adjustment method and device based on camera automatic identification printing color blocks and a storage medium, and relates to the technical field of printing device calibration, and the method comprises the steps: controlling a printing device to output a pattern containing each nozzle independent test area and color blocks; acquiring chromaticity distribution data through an image acquisition device, and extracting characteristic parameters such as brightness and saturation; determining a reference characteristic parameter based on a reference selection rule, and calculating a deviation value between each test area and the reference; an adjustment instruction is generated according to the mapping relation between the deviation value and the voltage adjustment amount, verification printing and iterative optimization are carried out after implementation until the precision is met, and through dynamic selection of a reference color block, LAB color space chromatic aberration calculation, voltage sensitivity coefficient matrix mapping and aging compensation, the adjustment precision and efficiency are improved, the dependence on artificial experience is reduced, and the adjustment precision and efficiency are improved. The method is suitable for nozzle calibration of high-precision printing equipment.

The invention relates to the technical field of probe testing, in particular to a PCB probe positioning method and system and a storage medium, and the method comprises the steps: obtaining a three-dimensional contour of a bonding pad, screening interference nodes, evaluating a contact error in combination with a probe structure, analyzing the density of test points, dividing a compression region, and carrying out the statistics of a space interference probability. And probe positioning and contact verification are completed according to the error and probability sorting path. The method has the beneficial effects that the dot matrix height on the surface of the bonding pad is comprehensively sampled, the space contour of the bonding pad is reconstructed, and the edge point residual error is extracted, so that the identification of the interference node is more accurate. And in combination with CAD boundary identification of a probe end face structure, comparing a node set formed by three-dimensional sampling points of a bonding pad, and establishing a contact area error evaluation mechanism in normal distance standard deviation calculation to realize multi-dimensional contact adaptation judgment. And forming a density evaluation sequence by the ratio of the spatial distribution to the projection area of all point locations in the test area, mining a local abnormal compression state, and completing the calibration of the high-density interference area.

The invention discloses a test method and system for a mobile communication indoor signal monitor and a storage medium, and the method comprises the steps: collecting a plurality of RSSI values of a to-be-tested region and current environment test parameters, calculating an RSSI initial test value based on the plurality of RSSI values, carrying out the cross-modal aggregation analysis based on the current environment test parameters, obtaining an aggregation coding feature, and carrying out the detection of the aggregation coding feature. And optimizing the RSSI initial test value based on the aggregation coding feature to obtain an RSSI optimized test value. By comprehensively considering the influence of multiple factors such as environment temperature, humidity, wall material and electromagnetic environment on the RSSI test value, the real quality of the mobile communication indoor signal can be reflected more accurately, and the accuracy and reliability of signal monitoring are improved.

The present invention discloses a method, system, medium and equipment for obtaining simulation parameters of vehicle door sealing strip materials. The method includes the following steps: obtaining measured load and displacement curves of sealing strips in various regions of the vehicle door during compression tests of the sealing strips, and selecting the measured load and displacement curves of the sealing strips to be tested; performing simulation compression analysis on the simulation model and simulation working conditions of the sealing strips in the tested regions, and obtaining multiple groups of load and displacement simulation curves of the sealing strips to be tested; fitting the measured load and displacement curves of the sealing strips to be tested with the multiple groups of load and displacement simulation curves of the sealing strips to be tested, and obtaining target material parameters of the sealing strips; obtaining load and displacement simulation curves of the sealing strips in other regions of the vehicle door, and fitting the measured load and displacement curves of the sealing strips in other regions of the vehicle door with the load and displacement simulation curves of the sealing strips, and obtaining final material parameters of the sealing strips; the method can quickly and effectively obtain material parameters consistent with those of the actual vehicle sealing strips, and improve the simulation accuracy of the vehicle door opening and closing durability.

The invention discloses a method and a device for detecting the bonding strength of a coating, and belongs to the technical field of coating detection. The method for detecting the bonding strength of the coating comprises the following steps: respectively bombarding test areas of a plurality of samples to be detected by adopting first laser according to different control parameters; the method comprises the following steps: detecting the falling degree of a coating in a test area of each to-be-tested sample from a substrate, and judging whether the falling degree reaches a set degree or not; taking the control parameter of the first laser corresponding to the to-be-detected sample with the falling degree reaching the set degree as a critical control parameter; and controlling the first laser to bombard a coating area of a to-be-tested product with the same model as the to-be-tested sample according to the critical control parameter, and evaluating the coating bonding strength of the to-be-tested product according to the surface appearance of the to-be-tested product. The coating bonding strength can be measured without contact with the coating, matrix damage is avoided, detection precision and detection efficiency can be improved, manual intervention is reduced, cost is reduced, and environmental pollution is avoided.

The invention relates to the technical field of metal material detection, in particular to a test method for evaluating the recrystallization completion degree of a steel material. The method comprises the following steps: dividing a to-be-detected steel plate into a plurality of blocky steel plate samples; preliminarily determining the range of the recrystallization temperature of the steel plate to be measured according to experience, setting a plurality of temperature gradients in the range, respectively heating a plurality of steel plate samples at different temperatures, carrying out heat preservation for a period of time, and then cooling to room temperature; grinding and polishing the cooled steel plate sample; putting the polished steel plate sample into an X-ray diffractometer sample table, and starting an X-ray diffractometer for scanning to obtain diffraction patterns of the steel plate sample at different temperatures; and judging the recrystallization completion degree of the steel plate sample according to the separation condition of the diffraction peaks K alpha1 and K alpha2 in the diffraction pattern. The method has the advantages of simple sample preparation and inspection methods, and results are representative and are basically not influenced by subjective effects of operators due to a large test area.

The invention belongs to the technical field of optoelectronic equipment testing, and particularly relates to a method for testing irradiation intensity of an area light source device, which comprises the following steps of: firstly, dividing the area light source device into a plurality of test areas, and numbering each area; secondly, acquiring the irradiation intensity of each test area in real time by using a high-precision optical sensor array; then, the collected analog signals are converted into digital signals through an A / D conversion circuit, and the digital signals are transmitted to a data processing unit; then, the data processing unit calculates the irradiation intensity value of each area, and analyzes the uniformity and consistency of the overall irradiation intensity distribution; and finally, displaying a test result through an upper computer control system, and generating an irradiation intensity distribution diagram. Through the high-precision sensor array and the data processing technology, the irradiation intensity distribution of the area light source device can be rapidly and accurately tested, a reliable basis is provided for light source performance optimization, and the method has the advantages of being efficient, accurate and high in practicability.

The invention discloses a radio frequency probe card, and relates to the technical field of probe cards. The radio frequency probe card comprises a substrate, the substrate is connected with a PCB, and one end, far away from the substrate, of the PCB is provided with a connecting ring; a mounting groove is formed in the substrate, a connecting block is mounted in the mounting groove, the connecting block is connected with a radio frequency probe piece, an accommodating groove is formed in the PCB, and the radio frequency probe piece is arranged in the accommodating groove in a penetrating manner and extends into the connecting ring; the PCB is further connected with a direct-current probe piece, the direct-current probe piece also extends into the connecting ring, and the substrate is further provided with a connector connected with the PCB. A test area is formed on one side, far away from the PCB, of the connecting ring; and one end, far away from the substrate, of the radio frequency probe piece and one end, far away from the PCB, of the direct current probe piece extend into the test area. The test efficiency can be improved.

Systems and methods are directed toward low temperature testing of motion, vibration, or force responses of test fixtures. For cryogenic shock testing, a test object can be secured on a test apparatus, such as a test fixture of a shock table. An elongated enclosure, such as a flexible tube, can be connected between the test fixture and a laser vibrometer, positioned orthogonal to a surface normal at a test region of the test fixture to enable light emitted by the vibrometer to be reflected from the test region back to the vibrometer. A flow of purge gas can be introduced into the tube, proximate the test fixture, to direct moisture away from the test fixture. The flow can prevent condensation or ice from forming on the surface of the test fixture at the cryogenic temperature. A shock event can be simulated, and the response of the test region measured by the laser vibrometer. The impact of the shock event on the test object can then be observed.

The invention provides a roadbed compaction quality detection method and device based on three-dimensional laser scanning, and relates to the technical field of roadbed quality detection.The method comprises the steps that a roadbed to be compacted is subjected to regional division; performing a pre-test on the pre-test area based on three-dimensional laser scanning to obtain a compaction degree calculation formula about the compression amount; performing interval division and roadbed compaction on the to-be-compacted area, and performing compaction quality detection based on a compaction degree calculation formula and real-time three-dimensional laser scanning to obtain a compaction quality result of each interval; and according to the compaction quality result, obtaining an interval with unqualified quality, performing pressure supplement on the interval with unqualified quality, and stopping pressure supplement until the compaction quality result of each interval of the to-be-pressed area is qualified. The method solves the problems that a traditional quality detection method cannot well reflect the compaction quality of the whole site, and meanwhile the quality detection efficiency is low due to the fact that the traditional method is long in consumed time, proficiency of detection personnel, weather and the like.

The invention discloses a crustal stress field inversion method for multiple stress paths in a stress superposition state, and the method comprises the following steps: obtaining protolith crustal stress in a tested region, obtaining the magnitude and direction of unloading stress, building a three-dimensional geologic model of an engineering region, and obtaining a three-dimensional geologic model of the engineering region through numerical simulation calculation. And obtaining a theoretical calculation value of a ground stress measuring point of the engineering area, inputting the measured values of the field initial ground stress and the unloading ground stress into the trained neural network, and carrying out inversion to obtain a corresponding boundary condition. Compared with an existing inversion method, the inversion method has the advantages that a nonlinear mapping relation between a model boundary condition and a test point calculation stress value is established by using the neural network, and the protolith crustal stress of a field measured value and the disturbance crustal stress of the unloading area are input into the neural network for inversion to obtain the boundary condition; the secondary adjustment of the stress field of the primary rock by the underground development excavation is considered, the relevance between the boundary condition and the stress field is increased, and the precision of the inversion method is improved.

The invention discloses a large model driven automatic driving limit scene test method based on vehicle and road cloud collaboration, and relates to the technical field of automatic driving, and the method comprises the steps: a vehicle end and a road side unit cooperatively collect the vehicle state and surrounding environment data, the road side unit carries out the quantitative representation of the dynamic attribute of a traffic flow, and recognizes a potential risk fragment; triggering the potential risk fragment to be uploaded to the cloud; the cloud performs structured reconstruction on the uploaded potential risk fragment data to generate a parameterized basic test scene; inputting the parameterized basic test scene into the trained large model, adjusting the coupling relationship among key scene parameters, and generating a limit test scene for exposing the performance boundary of the automatic driving decision planning module; and issuing the limit test scene to a road side unit of the target test area, and injecting scene information into the test vehicle by the road side unit. According to the method, the limitation of a traditional test method in the aspects of complex coupling scene generation efficiency and boundary exploration depth is solved.

The invention provides an actual road emission testing method and electronic equipment, and relates to the technical field of road emission testing. According to the method, the travel track of the vehicle trip chain with the highest score can be selected from a plurality of vehicle trip chains to serve as a simulation route for simulating an actual road emission test. In this way, the vehicle trip chain with the highest similarity between the average driving speed corresponding to the natural environment condition and the road type of each road section and the target test area can be obtained. Furthermore, the actual road emission test can be performed on the simulated route. If the actual road emission test on the simulation route fails, the simulation area is close to the vehicle production site, so that adjustment can be directly carried out in the vehicle production site nearby, the cost is low, and the time is saved; and after the test succeeds, the success rate of putting the vehicle into the target test area for actual road emission test is high, and the vehicle does not need to return to a vehicle production place for adjustment.

The display panel includes an active area and a border-frame area located at a periphery of the active area, the active area includes a plurality of sub-pixels and a plurality of data lines connected to the sub-pixels, and the border-frame area includes a testing area and a bonding area; the testing area includes a plurality of testing units that are arranged periodically in a first direction, each of the testing units includes one or more switching transistors, a first electrode of each of the switching transistors is connected to a testing-signal lead wire, and a second electrode is connected to one of the data lines; the bonding area includes a plurality of bonding units that are arranged periodically in the first direction, each of the bonding units includes one or more bonding pads, and each of the bonding pads is connected to one of the data lines.

An inspection and a method for the automated identification of an undesired deformation of an edge of a crossbeam of a shelf are disclosed, the method comprising the steps of: projecting, with a laser, a structured light pattern onto the inspection area, wherein the light pattern is aligned parallel to the inspection area and positioned in close proximity to the inspection area; capturing, with a camera, a raw image of the supporting element, which includes at least part of the inspection area and a reflection of the projected light pattern; generating an inspection image from the raw image by computer, wherein lines are extracted from the reflected light pattern of the raw image and converted into a line pattern and stored as the inspection image, and wherein straight lines are selected from the line pattern, in particular by means of a Hough transform;Computer-implemented verification, in the test image, of whether the selected lines include a broken straight line and / or a straight line with a different slope; and computer-implemented determination that the test area exhibits damage caused by deformation if the broken straight line and / or the straight line with the different slope is present.

The invention relates to a camera lens focusing definition analysis method and system, and the method comprises the steps: obtaining a checkerboard image collected by a to-be-tested camera lens module; performing angular point detection on the checkerboard image to obtain angular points of checkerboards in the checkerboard image; determining a test area from the checkerboard image based on the angular points of the checkerboard, and calculating a definition index of the test area; and performing subdivision statistics on the definition index of each test area based on the sagittal direction and the meridian direction of the camera lens to obtain the definition index of the camera lens module to be tested after subdivision statistics. According to the invention, the method achieves the automatic determination of the test region based on corner detection, can efficiently obtain the definition index, achieves the subdivision and statistics of the indexes in the sagittal direction and the meridian direction of the camera lens, can achieve the complete definition evaluation of the whole imaging view, helps a camera production process to improve the efficiency, and improves the production efficiency. The problem of low efficiency in existing camera focusing debugging is solved.