349 results about "Test preparation" patented technology

The invention discloses a method for monitoring the corrosion capacity of a circulating salt spray test chamber, and relates to the technical field of aluminum alloys. The method comprises the following steps of test preparation, device configuration and environment debugging, test process management, monitoring and recording, corrosion degree evaluation and report arrangement and summarization. The test box comprises a box body, a positioning mechanism is mounted in the box body, a spraying mechanism is mounted at the top end of the inner wall of the box body, the positioning mechanism is located below the spraying mechanism, a lifting mechanism is mounted on the peripheral wall of the box body, and a collecting mechanism is mounted at the bottom end of the inner wall of the box body; by arranging the positioning mechanism, aluminum alloy materials of different specifications can be positioned, meanwhile, aluminum alloy can be turned over and rotated, then the aluminum alloy can be sprayed more uniformly and comprehensively through the spraying mechanism, so that it is ensured that salt mist uniformly and comprehensively covers the surface of a sample, and the quality of the sample is improved. And the accuracy of test data can be improved.

The invention relates to a full-automatic test system and method compatible with multi-type component irradiation tests, and the system comprises an irradiation main control board, an irradiation test board and an irradiation load board which are disposed in an irradiation room and are connected through a cable, and an electronic load, a programmable power supply, an upper computer and a digital oscilloscope which are disposed in a test preparation room. The system can compatibly support the irradiation test of the total dose effect and the single event effect, is suitable for the rapid assessment demand of multiple types of COTS components on a large scale, and can meet the urgent demand of the commercial spaceflight field for the evaluation of the radiation resistance of the COTS components.

The invention provides a thermal stratification reservoir particulate matter settlement motion test simulation device and method, and the device comprises a design stage, a test preparation stage, a preparation stage, a particle size measurement stage, a settlement test stage, a data processing and analysis stage and a test result stage. According to the method, the resistance coefficient CD and the Reynolds number parameter are calculated, the response relation between the resistance coefficient CD and the Reynolds number parameter and the particle morphology index is analyzed, the particle settling velocity is corrected, the influences of the fluid viscosity, the particle shape, the temperature gradient, the measurement error and other factors are considered, and the test result is more accurate and reliable.

The invention discloses an embedded software testing method and device, equipment and a medium, and relates to the technical field of computers, the embedded software testing method and device are applied to a Jenkins server, a plurality of testing nodes are mounted on the Jenkins server, each testing node comprises a to-be-tested piece and auxiliary testing equipment, and the method comprises the steps that task parameters of a testing task are extracted, screening out at least one target test node based on the task parameters and hardware environment parameters of the plurality of test nodes; the test task is issued to a target test node, so that the target test node configures a software environment and pulls a test case, and a test script of the test case is loaded to the software environment based on a CANoe target interface so as to perform a test; and uploading a test result to a project management server. According to the invention, full-process automation of test preparation, test execution and test feedback is realized, and the test accuracy, consistency and integrity are improved.

The invention discloses a fractured rock mass pressure-bearing deformation-seepage-grouting visual test device and method, relates to the technical field of test devices, and aims to solve the problem of grouting reinforcement of water-rich fractured rock mass in the field of underground engineering. The device comprises a base, a transparent test bin, an axial pressure chamber, an axial pressure head, a pressure plate and other key components, and can realize the pressure-bearing deformation, seepage and grouting integrated test operation of the fractured rock mass under the cyclic dynamic load condition. The ballasting and seepage phenomena are simulated by applying axial pressure and water pressure, and grouting tests at different positions are simulated through grouting. The method comprises the steps of test preparation, cyclic dynamic load test, seepage test, grouting test, test data recording and storage, pressure unloading, test device resetting and the like. The test device is simple in structure and convenient to operate, grouting reinforcement of unfavorable geologic bodies can be simulated, visualization of the test process is achieved, the slurry diffusion rule is visually reflected, and scientific basis and technical support are provided for underground engineering construction.

The invention discloses a vacuum cavity pressure maintaining test and leak rate rapid estimation method and system, and the method comprises the steps: achieving the test preparation of multiple sections through a public metering manifold and a multi-way isolation valve, and building a section volume database; the pressure and temperature data are synchronously collected in a fixed sampling period by exhausting air to preset pressure and isolating a pump end; obtaining an equivalent pressure change rate through temperature normalization and deflation baseline deduction in combination with filtering and regression algorithms, and performing conversion to obtain a standardized leak rate; step-by-step detection is carried out on each functional section of the cavity through a segmented bipartite isolation strategy and volume correction, and rapid positioning of a suspicious leakage section is realized; through double-threshold determination of an early warning threshold and an unqualified threshold, a detection report is automatically generated and written into a historical database, and a detection-determination-maintenance closed loop is formed. The method can improve the precision of leak rate detection, and is suitable for vacuum coating equipment, semiconductor process equipment and industrial vacuum treatment devices.

The invention relates to the technical field of chips, in particular to a chip regression test method based on to-be-tested design configurations, electronic equipment and a medium, and the method comprises the steps: automatically generating a test case corresponding to each to-be-tested design configuration through setting chip regression test starting parameters and pre-constructed test case reconstruction information; recording test case states of a regression test preparation process and an operation process which need to record historical information in a database, and optimizing each to-be-tested design configuration to allocate a corresponding resource configuration based on a user identifier, historical regression test information corresponding to a to-be-tested design identifier and a current machine load; and the chip regression test efficiency and accuracy are improved.

The invention discloses an intelligent computer performance testing system based on a Shell script, belongs to the technical field of computer performance testing, and aims to solve the technical problem of how to improve the automation degree of computer performance testing, avoid man-machine interaction and further improve the testing efficiency and accuracy. According to the technical scheme, a test package program installation module is used for triggering and automatically installing a software test package program; the file generation module is used for generating an HPL.Dat file when the mpich software is installed; the file updating module is used for updating the HPL.Dat file generated in the process of installing the software test package program; the execution module is used for transmitting data; the test preparation module is used for providing test information for testing the performance of the computer and processing the test information; and the test item forming module is used for constructing test items according to the separated test information so as to obtain computer system performance test content and record test item information.

The invention relates to a protocol fuzz testing method and system based on multi-dimensional feedback information, and the method comprises the steps: carrying out the preprocessing of a target protocol entity program, and carrying out the testing preparation; performing a fuzzy test; the fuzzy testing process comprises a selection field variation stage and a variation field cost probability calculation stage for multi-dimensional feedback information processing; obtaining test result information, and feeding back the result information. The system comprises a test preparation module, a fuzzy test module and a result information feedback module. Multi-dimensional feedback information processing is carried out through the selection field variation stage and the variation field cost probability calculation stage, code space coverage of protocol fuzz testing is remarkably improved, more potential vulnerabilities are revealed, testing efficiency is greatly improved, under limited resources, testing is concentrated on a path which is most likely to cause collapse, and the testing efficiency is greatly improved. Therefore, the detection quality and speed are improved.

The invention discloses an FAKRA wire harness error code testing device and method, and relates to the technical field of error code testing. The method comprises the following steps of preparation before test, basic electrical test, limit plugging test, vibration test, stability test and test result analysis. According to the method, the initial bit error rate of the to-be-tested FAKRA wire harness is tested by using the bit error tester after the test equipment is calibrated, then the connectors at the two ends and the matched connector are subjected to the limit plugging test, then the vibration test is performed, and the simulation degree of the vibration test is evaluated, so that whether vibration simulation optimization is performed or not is determined; according to the method and the device, firstly, the fluctuation condition of the bit error rate is monitored in the test period, so that whether a clock optimization measure is taken or not is determined, finally, all test data are collected, the stability of the bit error test is ensured, and the problem that the bit error test accuracy is reduced due to the fact that the vibration test simulation degree is not high enough and the simulation quality is unstable in the prior art is solved.

The invention discloses a variable-shaft-diameter rolling bearing testing device and testing method, and aims to solve the problems that an existing rolling bearing testing device is difficult to adapt to bearings with different shaft diameter specifications, and a main shaft needs to be replaced frequently. The device is composed of a testing platform, a lead screw driving mechanism, an axial loading mechanism, an inner diameter variable mechanism, an outer diameter variable mechanism, a main shaft, a bearing seat mechanism, a main shaft coupler, a main shaft motor and a supporting frame. The inner diameter variable mechanism adapts to the inner diameters of different rolling bearings through a plurality of ring petals and a chuck structure, the outer diameter variable mechanism can adjust the outer diameter and the radial applied force in real time according to the outer diameter of the rolling bearing, the axial loading mechanism can apply a preset axial load to the bearing, and besides conventional constant axial force, the axial loading mechanism can also apply axial torque in different directions. The device can adapt to the testing of rolling bearings with various shaft diameter specifications without replacing the whole set of main shaft, effectively shortens the testing preparation time, and improves the testing efficiency. And the universality and the applicability are high.

The invention discloses a battery expansion force testing device and a testing method thereof, and relates to the technical field of battery testing. The battery expansion force testing device comprises a transparent case, an observation window communicated with the interior is formed in the outer wall of the transparent case, a first supporting frame is fixedly installed in the transparent case, a second supporting frame is fixedly installed on the top face of the first supporting frame, and a third supporting frame is fixedly installed on the top face of the first supporting frame; a servo motor and a controller are fixedly installed on the top face of the second supporting frame, an electric push rod is fixedly installed on the outer wall of the second supporting frame and electrically connected with the servo motor, the movable end of the electric push rod slidably penetrates through the first supporting frame, a force sensor is installed on the electric push rod, and a fixed clamping plate is fixedly installed at the movable end of the electric push rod. The battery expansion force testing device and the testing method thereof have the advantages that the adaptability is high, and different battery types and testing requirements can be met in the testing preparation stage.

The embodiment of the invention discloses a multi-channel test method, electronic equipment and a test system thereof, and the method comprises the steps: receiving first identification information obtained by scanning of scanning equipment, and selecting a corresponding test channel according to the first identification information; the test channel is provided with a to-be-tested circuit board in advance; receiving second identification information obtained by scanning the to-be-tested circuit board by the scanning equipment; sending a test instruction to the test equipment on the corresponding test channel to enable the test equipment to test the to-be-tested circuit board according to a pre-configured test item to generate test data; and obtaining test data, and storing the test data according to the second identification information. By means of the mode, multi-channel parallel test preparation can be achieved, the test efficiency is improved, the overall test time is shortened, and therefore the test cost and human resource investment are reduced; and cloud storage and tracing of test data can be realized.

According to the penetration test system and method for the vehicle-mounted controller, various types of communication interfaces and equipment interfaces are integrated in the industrial personal computer, so that the rigid requirements for communication configuration in various test scenes are met. Furthermore, through division of a bus security test module, a system security test module and a communication security test module, each module can independently construct connection with a target vehicle-mounted controller based on a Vector tool chain, an ADB / SSH, a wireless network card and a Bluetooth adapter, parallel execution of multiple test cases is supported, and the test cases do not interfere with one another; and synchronous promotion of safety tests such as bus diagnosis, system login, wireless communication and the like is realized. The upper computer serves as a control core and can automatically drive any module or multiple modules to work cooperatively according to the target test case, and test instructions are issued in a unified mode through the VT test system, so that the test preparation time and the execution period are greatly shortened, and the effect of improving the penetration test efficiency of the vehicle-mounted controller is achieved.

The invention relates to the technical field of pile foundation testing, in particular to a test pile load testing method and a loading structure, and the method comprises the following steps: testing preparation: establishing a real-time data acquisition link; graded loading: graded loading: collecting pile top settlement-time sequence data in real time at the load holding stage of the current load stage; self-adaptive load holding judgment: calculating a settlement convergence trend based on settlement data acquired in real time under the current load level; if the prediction model judges that the settlement is fully converged under the current load level, directly entering the next load level without waiting for the settlement rate to be reduced to a fixed threshold value; if the prediction shows that the settlement cannot be converged or tends to be damaged, triggering damage early warning and turning to a damage treatment flow; continuously detecting, namely repeating the step of graded loading and the step of self-adaptive load holding judgment until a preset maximum test load is reached or damage is triggered; and evaluation: evaluating the bearing capacity of the pile foundation. The test efficiency is improved, and the intelligent degree is improved.

The invention discloses a multi-attitude test platform for a quadruped robot, and relates to the technical field of intelligent robot testing, and the test platform comprises a main pedal, a lifting mechanism assembly, a driving mechanism assembly, a driven mechanism assembly and a pressure sensor assembly. A mounting hole is formed in the surface of the main pedal; the lifting mechanism assembly comprises a lead screw servo motor, a lead screw, a guide rail, a sliding plate, a transmission belt and the like. The lead screw servo motor drives the lead screw to be matched with the driven mechanism to achieve pitching motion of the main pedal. The driving mechanism assembly comprises a servo motor, a worm and gear reduction gearbox, a fixing shaft, a right lifting plate and the like. The servo motor drives the worm and gear reduction gearbox to achieve inclined rotation movement of a main pedal. The driven mechanism assembly comprises a guide rail, a sliding table, a driven shaft, a left lifting plate and the like. And the pressure sensor assembly comprises a small top plate, a spring and a pressure sensor and is arranged in the mounting hole. The test platform can simulate slope environments of different angles according to needs, is used for multi-posture static test of the tested quadruped robot, collects change parameter data of standing postures of the quadruped robot in the slope environments of different gradients through devices such as the pressure sensor and a built-in sensor of the robot, and performs multi-posture static test on the quadruped robot according to the change parameter data. Test preparation is made for optimizing and adjusting the standing posture of the quadruped robot in the later period, so that the stable performance of the robot is guaranteed, and the purpose of testing the multiple postures of the quadruped robot is achieved.

The invention discloses a hydraulic anchor and mooring equipment braking force test bracket and a using method thereof.The hydraulic anchor and mooring equipment braking force test bracket comprises an adapter plate, an oil cylinder, a pressure hose, a pressure gauge and a hand pump, one side of the adapter plate is detachably and fixedly connected with a baffle of a cable winding drum of an anchor and mooring equipment, and the other side of the adapter plate is hinged to the output end of the oil cylinder; the hand pump is communicated with a cylinder body of the oil cylinder through the pressure hose, and the pressure gauge is arranged on the pressure hose in series. The using method comprises the following steps: preparing before testing; the bracket main body is switched to a moving state; preliminarily positioning the bracket main body; the bracket main body is finally positioned and switched to a storage supporting state; completing the braking force test of the anchor and mooring equipment; the bracket main body is switched to the moving state again; and the bracket main body is hoisted and stored. When the bracket is used for testing, the switching of the walking mechanism is efficient and safe, the driving assembly is convenient to disassemble and assemble, the base is simple to fix, the operation difficulty of the test is reduced, and the test efficiency is improved.

The invention relates to the technical field of ice engineering measurement, and discloses an ice pool underwater special-shaped structure icebreaking load simulation test method comprising the following steps: test preparation: carrying out test preparation, and attaching a flexible pressure sensor array to the surface of an underwater test piece; data acquisition: synchronously acquiring data acquired by the flexible pressure sensor array in the icebreaking process; and data processing: reconstructing the data acquired by the flexible pressure sensor array by adopting a hybrid interpolation algorithm based on physical constraint and adaptive weight to obtain a simulated icebreaking evolution track. According to the method, the precision and reliability of ice load reconstruction are remarkably improved, and the method is particularly suitable for identification and analysis of local peak load on the surface of a special-shaped structure.

The invention relates to the technical field of air tightness detection, and discloses a wafer box air tightness detection method based on temperature change and gas concentration difference, the method is realized through a wafer box air tightness detection device, and the wafer box air tightness detection device is a closed chamber composed of a cavity, a cavity door and a wafer box support; in the aspect of detection accuracy, the gas replacement state and the leakage condition of the wafer box can be accurately judged through real-time monitoring of a monitoring sensor, a unique stability judgment and leakage analysis method and comparison of related parameter thresholds, and the misjudgment rate is effectively reduced; the temperature and the oxygen concentration are monitored at the same time, misjudgment caused by a single parameter is avoided, the detection process is efficient, the links of test preparation, gas replacement and the like are closely linked, original gas can be rapidly replaced by flow formed during gas replacement, and the gas tightness judgment basis is scientific and reasonable; only an electromagnetic valve switch needs to be controlled and sensor data acquisition and analysis are carried out, so that the technical threshold is reduced and the detection efficiency is greatly improved.

The invention relates to a stateful protocol fuzzy test method and system based on response information. The method comprises the following steps: S1, a preprocessing stage; S2, a fuzzy test stage; s3, a state selection stage; and S4, a seed scheduling stage. The system comprises a test preparation module, a fuzzy test module, a state selection module and a seed scheduling module. According to the method, the source code of the protocol entity program to be tested is statically analyzed to capture distribution and use of enumeration type variables in the source code. According to the method, the response result information of the tested program is analyzed, the response header field is extracted, on the basis that the response code represents the state, the state is further subdivided, the states represented by a plurality of same state codes in the same seed are effectively distinguished, and the detection accuracy is improved. And the seed value and the variation position are adjusted by using the response header field information reaching the target state and the coverage rate information, so that the code coverage rate of the stateful protocol fuzz test is remarkably improved, more vulnerabilities are found, and the fuzz test efficiency is greatly improved.

The invention discloses a part joint degree thermal resistance testing method based on natural convection cooling, and relates to the technical field of thermal resistance testing. The problems that in the prior art, testing time is long, efficiency is low, drying cost is increased, and production efficiency is reduced are solved. Through test preparation, real-time monitoring and control, temperature difference calculation and repeated test verification, the thermal conductivity and the processing quality of the joint surface of the component can be quickly judged, the production efficiency is effectively improved, the test cost is reduced, the test conditions are accurately controlled, the thermal steady state is quickly achieved, the test time is remarkably shortened, the test efficiency is improved, and the test cost is reduced. Meanwhile, the drying cost is reduced, the production efficiency is improved, the stability and the reliability of a test result are ensured through repeated testing and verification, the processing quality of a component joint surface can be accurately evaluated, whether the joint process is qualified or not is quantitatively evaluated by establishing a standard temperature difference threshold value, and the reliability of the test result is enhanced.

The invention relates to the technical field of material performance testing, and discloses a multi-parameter simulation salt spray environment test system and method, and the system comprises a multi-parameter cooperative control module, a bionic fog drop generation and salt spray adjustment module, an energy recovery and resource circulation module, a salt spray environment adaptive compensation module, and a test data intelligent analysis module. The modules are in closed-loop communication through an industrial Ethernet; the method comprises the steps of test preparation, model initialization, dynamic simulation and compensation, energy resource circulation and data processing ending, specifically, a salt mist concentration-temperature-humidity-wind speed coupling model is constructed, uniform salt mist is generated through bionic atomization and electrostatic adsorption, self-adaptive compensation is achieved in combination with partition sensing and corrosion current detection, and the salt mist concentration-temperature-humidity-wind speed coupling model is obtained. And heat is recovered, and condensate water and non-atomized saline water are recycled. The problems of multi-parameter coupling interference, resource waste and low data value in the prior art are solved, the simulation precision and the resource utilization rate are improved, and the method is suitable for multi-field material corrosion resistance testing.

The invention discloses a high-power turboprop engine preassembling device and a test run method, which are used for preassembling a high-power turboprop engine, and the high-power turboprop engine comprises an engine main body, a propeller and a test structure, the preassembling device comprises a preassembling frame used for supporting, a height adjusting structure arranged on the preassembling frame and an installing frame used for being detachably connected with the height adjusting structure, the preassembling frame is used for being installed in a test preparation room so as to preassemble the installing frame and the high-power turboprop engine, and the height adjusting structure is used for adjusting the vertical height of the installing frame when the installing frame is preassembled. The mounting rack is used for mounting the engine main body in a cantilever manner and mounting the propeller and the test structure on the engine main body after being connected with the height adjusting structure, and then hoisting the engine main body into a test room after being separated from the height adjusting structure; the preassembling requirement of the high-power turboprop engine is met, rapid reloading and preassembling of the high-power turboprop engine are achieved, and the utilization rate of a test bed is increased.

The embodiment of the invention provides an environmental simulation test system and test method for executing ultrasonic leak detection in a normal pressure environment, and the system comprises a vacuum container, an ultrasonic transmitting module, a sealing module, an ultrasonic detection module and a preset clamping object. The ultrasonic leak detection device can execute ultrasonic leak detection in a normal-pressure environment, can be used as a preventive maintenance means to detect whether leakage is caused by clamping objects at a sealing module (such as flange connection) of a vacuum container in a test preparation stage, namely the normal-pressure environment, so as to realize early discovery, early intervention and early elimination of vacuum leakage, and greatly shorten the detection time of vacuum detection required in the conventional technology.

The invention discloses a thermal control method and device for improving the performance of a lunar orbit laser corner reflector, and belongs to the technical field of space flight and aviation. The method comprises the following steps: in a non-test stage, analyzing illuminated and thermal environment data of the corner reflector in a lunar orbit, and designing heat dissipation and heat insulation measures, so that the corner reflector is in a low-temperature storage stage; in the test preparation stage, heating belts are started for preheating, temperature measurement data of all areas of the corner reflector are collected, and the duty ratio of all the heating belts is independently adjusted in combination with a novel PID temperature control algorithm and an external heat flow prediction model; in the test process, the heating belt is started, all areas of the corner reflector are monitored and adjusted in real time, and when temperature deviation occurs, the duty ratio of the heating belt is adjusted through a novel PID temperature control algorithm and an external heat flow prediction model; and after the test is completed, the corner reflector enters the low-temperature storage stage again. According to the invention, high precision and high reliability of the laser corner reflector on the lunar orbit can be ensured, and the success probability of laser ranging on the lunar orbit spacecraft corner reflector by the ground is improved.

The invention relates to the technical field of electronic device test, in particular to a high-frequency high-speed switch test system based on diversified fusion analysis, which comprises a diversified test center, a test execution unit, an acquisition response unit, a progressive test unit, an area positioning unit, a degree division and label acquisition unit and a test feedback unit, according to the method, preliminary analysis is performed from the perspective of test preconditions, interference of test preparation work of the high-frequency high-speed switch on subsequent tests is reduced, and the performance condition of the high-frequency high-speed switch is evaluated in an information progressive and comprehensive quantification mode so as to judge whether the performance of the high-frequency high-speed switch is abnormal or not. According to the method, multi-dimensional collaborative testing of electrical performance, thermal characteristics and environmental adaptability is achieved, so that the test coverage rate is increased, the reliability of performance test results is improved, analysis is carried out from the perspective of feature extraction, fault positions and fault types are judged, and a test feedback label of the whole high-frequency high-speed switch is obtained through fault comprehensive severity analysis.

The invention discloses an automatic software testing method based on behavior-driven development, belongs to the technical field of software testing, and remarkably reduces repeated work of manual coding by automatically generating a test script. Based on a test scene described by a natural language, the system directly converts a structured test model into an executable test code by utilizing a predefined template library and a dynamic code generation technology. For example, key actions and parameters are extracted from a user story written by a Gherkin language through an analyzer and mapped to a code template of a framework such as Selenium or JUnit, and scripts do not need to be written manually line by line. The hierarchical design of the test model further simplifies the script generation process, supports batch processing of multi-scene test tasks, greatly shortens the test preparation period, improves the overall test efficiency, is compatible with various programming languages and test frameworks, and can adapt to project requirements of different technology stacks.

The invention relates to the technical field of high polymer material performance detection, in particular to a method and system for testing the thermal stability of a double-sided adhesive tape, and the method comprises the following steps: S1, sample preparation: cutting the double-sided adhesive tape by using cutting equipment, marking the cut double-sided adhesive tape, and classifying the marked double-sided adhesive tape; s2, test preparation: putting the double-sided tapes classified in the same group into a bearing appliance, putting the bearing appliance into test equipment, and then sealing the test equipment; s3, starting the test: starting the supply equipment, and supplying heat to the test equipment by the supply equipment; temperature-time nonlinear loading is achieved through a sandwich multi-cavity structure (40 DEG C / 100 DEG C / 120 DEG C / 150 DEG C partition), compared with a traditional single-temperature-zone test, thermal stress accumulation of a material in a sudden change temperature field can be synchronously simulated, the aging rate simulation precision is improved, and the test efficiency is improved. And liquid nitrogen quenching (-40 DEG C) is superposed in four layers of temperature zones, so that the material interface microcrack density can be induced, and the thermal mechanical fatigue weak point of the adhesive layer can be effectively exposed.

The invention relates to the field of filters, and discloses positive and negative pressure general filter testing equipment and a testing method, and the equipment comprises the following modules: a pressure control module which is equipped with a positive and negative pressure bidirectional pressure pump, a positive and negative pressure collector and a master controller; the flow adjusting module comprises an intelligent flow adjusting valve and a positive and negative pressure collector; the test cavity module adopts a sealed pressure-resistant structure, and an adjustable airflow distribution device is arranged in the test cavity module; the data acquisition and analysis module is used for acquiring pressure, flow, filtering efficiency and resistance data in real time and generating a test report; all the modules are connected through standardized interfaces and can be combined and expanded. By adopting the positive and negative pressure integrated test process, the operation complexity is reduced, the operation error probability is reduced, the test preparation time is shortened, meanwhile, the idle and repeated operation time of equipment is shortened through the coherent test process, seamless transition from positive pressure test to negative pressure test and complex working condition simulation test can also be efficiently completed, the test quantity in unit time is increased, and the test efficiency is improved. The rapid detection requirement is met.

The invention belongs to the related technical field of integrated circuit testing, and discloses a power semiconductor dynamic parameter alternating test system, which comprises a plurality of groups of test fixtures, a protection device, a switching matrix and a limiting trigger circuit, and is characterized in that the test fixtures are independently and controllably used for clamping and fixing each test object; the protection device is designed to be capable of being switched among a plurality of groups of test clamps, and after the protection device is switched to a certain group of test clamps and completely covers the test clamps, the protection device immediately triggers the limiting trigger circuit installed at the test clamps. And the limiting trigger circuit is used for activating the switching matrix after being triggered, then distributing the test resources to the current test fixture, and executing an alternate dynamic parameter test. The invention further discloses a corresponding testing method. According to the invention, the test process is optimized, the test preparation time is reduced, the test efficiency of the power semiconductor can be significantly improved, and the safety and reliability of the test process are enhanced.