519 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.

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 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.

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 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 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 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.

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 measuring device (22) for inline measurement of the adhesion strength of a coating (16) of an electrode (12), comprising two deflecting rollers (28) and a measuring roller (30), which are aligned with their respective central axes parallel to each other, wherein the measuring roller (30) is configured to be moved in a lateral direction (32) perpendicular to a longitudinal extension direction of the central axes relative to the deflecting rollers (28), wherein the deflecting rollers (28) are configured to be positioned against the same side of the electrode (12) and the measuring roller (30) is configured to be positioned against the other side of the electrode (12), whereby by moving the measuring roller (30) the electrode (12) can be positioned around the measuring roller (30), whereby the electrode (12) has a bend in a test area defined by a radius of the measuring roller (30), and comprising an optical defect detection device (34).which is designed to optically detect and evaluate the area of ​​the electrode (12) to be tested.

The detection device comprises a first water-absorbing material which is used for contacting a liquid sample and is provided with a first test area, a second water-absorbing material which is used for contacting the liquid sample and is provided with a second test area, and a third water-absorbing material which is used for contacting the liquid sample and is provided with a second test area, in a preferred manner, the flow rate of the first water absorbent material is slower than the flow rate of the second material.

The present invention relates to the field of detection technology, and in particular to a device for testing the anti-permeability of a waterproof roll, comprising a base, two guide rails 1 being installed on the base, a lifting plate 1 being provided between the two guide rails 1, an upper detection tube being connected to the lifting plate 1, a lower detection tube being connected to the base and being located directly below the upper detection tube, a drain valve pipe being connected to the lower parts of the lower detection tube and the upper detection tube, an air supply pipe and a water supply pipe being connected to the top of the upper detection tube, and a flattening mechanism for flattening the waterproof roll being provided between the upper detection tube and the lower detection tube. By providing the flattening mechanism, the waterproof roll can be pulled outward and flattened during the process of the upper detection tube moving down and covering the lower detection tube, thereby ensuring that the test area of ​​the waterproof roll is flat and wrinkle-free, avoiding detection errors caused by wrinkles in the waterproof roll, thereby improving the accuracy and reliability of the anti-permeability performance test of the waterproof roll, and further being able to truly and objectively reflect the actual anti-permeability performance of the waterproof roll.

The disposable device for detecting the analyzed substance in the vaginal secretion comprises a smooth rod body used for entering the vagina, a test area is arranged in the smooth rod body, and the test area protrudes out of the surface of the smooth rod body, so that after the smooth rod body enters the vagina, the analyzed substance in the vaginal secretion can be detected through the test area. The protruding test region may contact or receive vaginal secretions, thereby testing the properties of the vaginal secretions.

The utility model provides a human body scale four-corner measurement value deviation automatic testing machine. The human body scale four-corner measurement value deviation automatic testing machine comprises a rack, a conveying belt, a centering device and a weight loading device. The conveying belt is used for automatically conveying a to-be-tested human body scale into a test area; the centering device accurately controls the movement of a first positioning plate, a second positioning plate, an X-axis positioning rod and a Y-axis positioning rod, so as to achieve the centering and positioning of the human body scale. The weight loading device accurately controls the weights to load the weights with different weights on the four corners of the human body scale through the cooperative work of the second X-axis driving assembly and the second Y-axis driving assembly, detects the weight output value of the human body scale in real time, and compares the weight output value with the actual weight of the weights, thereby accurately measuring the deviation of the measured values of the four corners of the human body scale. The device has the advantages of high test precision, fast test speed, simple operation and the like, can automatically, accurately and efficiently detect the deviation of the four-corner measured values of the human body scale, and meets the test requirements of different models of human body scales.

The invention discloses a testing device which comprises a cavity used for receiving a liquid sample, a cover body, the cover body is used for sealing the cavity, the cover body further comprises a carrier with a groove, the carrier is used for receiving and holding a test strip, the cover body further comprises a hole, the hole is communicated with the groove, and the hole is communicated with the groove. The cover body is provided with a mark, the connecting line between the mark and the hole is the shortest distance, and when a test is carried out, the mark is set to indicate an inclined direction, so that a liquid sample is in contact with a test area of the test strip in the groove, and by adopting the device, the test can be rapidly carried out, the operation is simple and convenient, and the test efficiency is improved. And the test result is more accurate.

The application discloses a precise satellite navigation data processing method, device and equipment and a storage medium. The method comprises the following steps: acquiring reference station data corresponding to a plurality of reference stations in a target test area, wherein the target test area is pre-set; calling a preset carrier phase observation model to process the reference station data corresponding to the plurality of reference stations respectively to obtain phase bias data corresponding to the plurality of reference stations, wherein the phase bias data is used for representing phase delay error, satellite orbit error and satellite clock error; and performing fusion processing on the phase bias data to obtain target area phase bias. The application calculates the phase bias data by using the reference stations in a specific area, so that the satellite ephemeris error is fused in the phase bias data of the satellite, the phase bias data can resist the error from the satellite orbit in the use process of a PPP-RTK server, and the positioning accuracy of the PPP-RTK server is improved.

The application discloses a kind of air pressure-temperature-damage coupling's flexible material air tightness test system and method, test system includes tensile fatigue device, sample holder, high-pressure permeation device, fixed support device and holder, the two ends of sample are fixed by sample holder, first fixed in tensile fatigue device to carry out cyclic tension test with sample holder, to obtain the sample with different fatigue damage degree;Through holder, the sample after cyclic tension is transferred and fixed on fixed support device, so that the center test area of sample is located in the high-pressure sealed box permeation region formed by upper box assembly and lower box assembly in high-pressure permeation device, so as to carry out air tightness detection under different temperature and different air pressure, to obtain the gas permeation rate and gas permeation coefficient of sample, realize the overall evaluation of flexible material air tightness and fatigue resistance.

The invention relates to the technical field of down jacket performance detection, and provides a down jacket fabric windproof performance detection device and method.The down jacket fabric windproof performance detection device comprises a detection box, a test cylinder is arranged in the detection box, a material carrying piece used for containing sample fabric is arranged on the test cylinder, and the detection device further comprises a circumferential pulling assembly; a material pressing assembly for pressing and fixing a sample fabric testing area and an air blower for simulating air blowing are arranged in the detection box; an elastic film is arranged in the test cylinder, a communicated transparent tube is arranged on a cylinder section, between the bottom of the detection box and the elastic film, of the test cylinder, and a liquid column is arranged in the transparent tube; after the sample fabric is laid on the testing cylinder and the material loading piece, the sample fabric is uniformly pulled in the circumferential direction through the circumferential pulling assembly so that a sample fabric testing area can be flat, then the sample fabric testing area is pressed and fixed through the material pressing assembly, the sample fabric fixing efficiency is effectively improved, and meanwhile the accuracy of a detection result is guaranteed.

The invention is a method and computer system for determining one or more parameters quantitatively characterising the interaction between an antigen and an antibody. The method comprises producing a test region carrying an antigen that produces a first luminescence spectrum, bringing into contact with the test region a sample solution comprising an antibody that forms a complex with the antigen and produces a second luminescence spectrum different from the first luminescence spectrum, recording an image (30) or images of the test region with a digital imaging device, producing a 2D histogram (40) from intensity values of the image (30), performing curve fitting on the points of the 2D histogram (40), and determining the one or more parameters by means of the fitted curve.

A drug testing platform for simulating a lung environment includes a microfluidic chip and a stretching device. The microfluidic chip defines a microfluidic channel structure. The microfluidic channel structure includes a test unit, a cell shunt unit and a drug shunt unit. The stretching device is configured to stretch and contract the test unit in a manner of a reciprocal motion, thereby making degree of deformation of a plurality of test area of the test unit to be same during the reciprocal motion. The drug testing platform for simulating the lung environment according to the present disclosure may configure an environment that simulates a breathing motion of a human lung, and obtain multiple results within a single test.

The invention discloses a crawler excavator driving speed and driving linearity detection system and method, and the system comprises a target plate group, a laser displacement sensor, a microcontroller MCU and a Phyphox mobile phone terminal special test software, the target plate group comprises target plates A, B and C which are sequentially arranged along a preset driving route, the center lines of the three target plates are collinear and are parallel to the initial advancing direction of the excavator; the detection axis of the laser displacement sensor is orthogonal to the advancing direction of the excavator, and the horizontal distance between the excavator and the target plate is collected in real time; the MCU is used for acquisition, preprocessing, operation and data communication of signals of the laser displacement sensor; the Phyphox mobile phone end special test software establishes communication with the microcontroller MCU through Bluetooth to process detection data, synchronous detection of the driving speed and linearity is achieved, and the test efficiency is improved; whether the excavator is in a constant-speed driving state on a test road section or not is accurately judged, and the requirement that the driving speed of the excavator in a test area is constant is met.

The invention provides a chip test system and a chip test method, and in the chip test system, a test machine is used for loading a to-be-tested chip and carrying out a crimping test on the to-be-tested chip. When the to-be-measured chip is in compression joint with the pressing arm, the temperature sensing channel unit of the temperature sensing module carries out temperature sensing measurement on the corresponding to-be-measured area to obtain temperature information, and each temperature adjusting unit of the temperature control module is in contact with the corresponding to-be-measured area. And the temperature adjusting unit is used for receiving the temperature adjusting signal of the corresponding temperature control channel unit and adjusting the temperature of the corresponding to-be-tested area according to the temperature adjusting signal of the temperature control channel unit, so that the temperature of the to-be-tested area is in a target test temperature range. Thus, on the premise that the pressure is not changed, multi-channel independent temperature control and setting of the test area can be achieved, efficient active temperature control is achieved, and uneven temperature caused by uneven heat dissipation can be avoided.