28 results about "Step test" patented technology

The invention provides an anti-extrusion performance test system for preparation of a high-wear-resistance anti-extrusion rubber tube, and relates to the technical field of extrusion tests, the anti-extrusion performance test system comprises a test base, the rear side of the top of the test base is slidably provided with a sliding transmission plate; a transmission vertical groove A is formed in the front side of the sliding transmission plate; a transmission chute A is formed in the top end of the front side of the sliding transmission plate; a fixed transmission plate is fixedly mounted on the front side of the top of the test base; a transmission vertical groove B is formed in the front side of the fixed transmission plate; and a transmission chute B is formed in the bottom of the front side of the fixed transmission plate. The anti-extrusion performance test and the anti-bending performance test of the outer rubber pipe are integrated, integrated operation of two test steps is achieved, compared with a traditional step-by-step test, the outer rubber pipe does not need to be transferred between the two tests, inconvenience caused by multiple times of clamping and transferring is avoided, the problem of bending performance evaluation of the rubber pipe is solved, and the test efficiency is improved. And the other set of independent test system is needed to carry out special detection.

The present application relates to four-probe flying probe test equipment path optimization method, device and storage medium, the method includes task input module receives basic constraint condition and test task information, if using fixed grouping mode, according to the basic constraint condition fixedly divide four probes into two groups, the distance of two groups of probes from the current test task to the selectable next test task is calculated in turn and the moving path of each group of probes is planned, if using the variable grouping mode that allows probe to change group in each step test process, the optimization objective function of each step of each probe is calculated in turn and the moving path of each probe is planned, according to the moving path of each planned probe, control execution module controls each probe to move in turn and completes test task. The mathematical model constructed more comprehensively and accurately reflects the actual situation of four-probe flying probe test, provides more reliable theoretical basis for path optimization, and helps to improve the optimization precision of test path.

The invention discloses a mechanical property testing device and method, which can provide temperature, pressure, humidity and other environments close to a deep environment before and in the maintenance process of a sample, and can realize time sequence synchronous loading and space uniform distribution of multiple physical fields in deep high-temperature, high-stress and high-humidity environments. The technical defect of stress field-temperature field-humidity field decoupling evolution in a traditional step-by-step test is overcome, and the mechanical boundary condition of deep surrounding rock-filling body collaborative bearing is truly restored.

The utility model relates to the technical field of incomplete penetration detection of pipelines, in particular to a stepped test block for detecting weld defects. According to the technical scheme, an adjusting plate is arranged on one side of a fixing block, a second flat-bottom hole and a third flat-bottom hole are formed in the fixing block, a first flat-bottom hole is formed in the adjusting plate, and a second clamping groove and a third clamping groove are formed in the two sides of the fixing block respectively; the adjusting plate is connected with the second clamping groove or the third clamping groove in a clamped mode through the second inserting block. A first clamping groove is formed in the bottom end of the fixing block, a first inserting block is arranged at the bottom end of the adjusting plate, and the adjusting plate is clamped in the first clamping groove of the fixing block through the first inserting block and then is attracted and fixed through the first magnet and the second magnet. According to the utility model, the adjusting plate can flexibly slide on the fixed block or be fixed at different positions, so that different detection requirements are met, and the adjusting plate can be conveniently clamped on the fixed block, so that the device is convenient to store and carry.

The invention discloses an accelerated life test device and method for an MEMS inertial device. A test board of the device is fixed on a middle bracket at the bottom in a damp-heat test box; the damp-heat test box is mounted on a cantilever of the three-axis turntable; the direct-current power supply and the signal collector are respectively connected with the test box through a low-frequency electric connector; the control computer is connected with the three-axis turntable, the damp heat test box, the direct-current power supply and the signal collector; determining the highest stress level and the multi-stress level of the test sample; determining test sample groups, and constructing a test sample multi-stress acceleration model; determining a test point and a test truncation of the test sample; setting the test device to each stress level for testing, and after a specified test interval is reached, controlling a computer to acquire performance parameters and test stress of a test sample until the step test truncation requirements are met; according to the method, the research and development period is shortened, the test cost is reduced, and a theoretical and experimental basis closer to reality is provided for reliability design and life evaluation of the device.

The invention discloses a wearable physical fitness testing device. According to the equipment, an acceleration sensor, a heart rate sensor and a single chip microcomputer are used, and automatic measurement of heart rates of physical fitness test items such as push-up, sit-up, pull-up, standing long jump, rope skipping, 50-meter running, 800-meter running, 1000-meter running and step experiments is achieved. The equipment can be used in a wearable mode, and supports an online data uploading mode and an offline manual data recording mode. The invention provides equipment for automatically carrying out multiple physical fitness tests, and is widely applicable to schools, physical training and management departments.

The invention relates to the technical field of heat-sensitive sensor testing, in particular to a response speed testing system and method based on a heat-sensitive sensor, and the system comprises a product testing platform, a testing management unit, a calibration supervision unit, a dynamic step unit, a frequency testing unit and a testing processing unit. According to the method, analysis is preliminarily carried out from the aspect of test interference, so that the test interference is locked and fed back, the influence of test interference items on the following heat-sensitive sensor test is reduced, analysis is further carried out from the aspect of calibration of the heat-sensitive sensor in an information progressive mode, the subsequent test precision is improved, and the test efficiency is improved. And analysis is deeply carried out from two points of a dynamic step test and a frequency response test in an information feedback mode, that is, whether the response speed of the heat-sensitive sensor is qualified or not is comprehensively evaluated, so that the response speed test accuracy and credibility of the heat-sensitive sensor are improved, and reasonable management on the heat-sensitive sensor is facilitated.

The utility model relates to an inner step ultrasonic detection test block, which belongs to the technical field of ultrasonic nondestructive testing and comprises a test block body provided with a plurality of through holes along the length direction. The plurality of through holes are arranged on the test block body in a step shape, and the distance between the through hole at the head end and the upper end surface of the test block body is not equal to the distance between the through hole at the tail end and the lower end surface of the test block body. Compared with the prior art, the step test block is formed by hollowing the interior of the test block body, so that different step distributions can be formed when the test block body is positively placed and reversely placed, compared with the existing step test block, the number of steps of the test block is doubled, and as the appearance is not provided with actual steps, the two-side placement is of a stable structure.

The invention discloses a foot shape collecting device which comprises a rack, a flexible collecting module, a top depth camera and a bottom depth camera, the rack is used for fixedly installing the flexible collecting module, the flexible collecting module comprises a guide plate and a plurality of probes, the probes vertically penetrate through the guide plate, and the bottom depth camera is arranged on the guide plate. The top of the probe is provided with a head used for being in contact with the sole of a foot. According to the invention, the rack and the flexible acquisition module are combined to form a foot downward treading test area after area optimization, so that the space occupation of the equipment is greatly reduced while the whole foot acquisition is ensured; the top depth camera and the bottom depth camera are matched with the orientation layout of the rack and the flexible acquisition module, the top and the bottom of the flexible acquisition module are considered in all directions, and acquisition of whole foot data included in the instep and the sole is formed.

The utility model discloses a multi-model step-by-step test fixing device and a test system of a split type two-stage compressor, and the multi-model step-by-step test fixing device of the split type two-stage compressor comprises a first-stage gear box body, a first-stage positioning plate, a second-stage gear box body and a second-stage positioning plate. The first-stage gear box body comprises a first driving shaft, a first main driving gear and a first gear box, one end of the first driving shaft is rotatably connected into the first gear box, the first main driving gear is located in the first gear box and connected to the first driving shaft in a sleeving mode, and a first assembling hole is formed in the first gear box; one side of the first-stage positioning plate is detachably connected to the first gearbox, and the other side of the first-stage positioning plate is detachably connected to the first-stage testing machine body; the second-stage gear box body comprises a second driving shaft, a second main driving gear and a second gear box. The performance of a multi-type single-stage machine body can be tested; and meanwhile, the dismounting difficulty can be greatly reduced, the time is saved, and the cost is effectively reduced.

This application relates to a method, system, electronic device, and storage medium for early warning of acute mountain sickness. The method includes: collecting physiological data from a step test conducted on a subject at a target plain altitude; generating at least one physiological principal component based on the step test data; performing cluster analysis on the at least one physiological principal component to obtain risk classification clusters; obtaining the actual high-altitude Lake Louise score of the subject in each risk classification cluster and calculating the score interval proportion to determine the risk classification label; and providing an early warning of acute mountain sickness to the user based on the risk classification label. This solves the problems in related technologies, such as high dependence on specialized testing equipment and laboratories, time-consuming testing processes, inability to screen individuals before they enter high altitudes, difficulty in achieving non-invasive and simple screening, and inability to effectively determine the acute mountain sickness tolerance of new subjects, thus hindering personalized early warning and prevention.

The invention relates to the technical field of Sic Mos module detection, and discloses a Sic Mos module detection device which comprises a detection table and detection equipment provided with a plugging port, one side of the plugging port is provided with a first mounting frame, the first mounting frame is provided with a rotating mechanism, the rotating mechanism is provided with a fixed disc, and the fixed disc is provided with a second mounting frame. A Z-axis swing plate is arranged on one side of the fixing disc, a sliding groove is formed in the outer wall of the top of the side, away from the fixing disc, of the Z-axis swing plate, a sliding block is slidably connected into the sliding groove, and a connecting spring is fixedly connected between the sliding block and the inner wall of the sliding groove. According to the invention, vibration, plugging and vibration combined stress tests can be realized, compared with a traditional step-by-step test of first independent vibration and then independent plugging, the combined stress during maintenance or installation can be accurately simulated, the required test time can be greatly reduced, the operation condition of the Sic Mos module after each vibration time can be recorded in real time, and problems can be conveniently found.

The invention relates to an inner step ultrasonic detection test block, which belongs to the technical field of ultrasonic non-destructive testing and comprises a test block body, and a plurality of through holes are formed in the test block body along the length direction; the plurality of through holes are arranged on the test block body in a step shape, and the distance between the through hole at the head end and the upper end surface of the test block body is not equal to the distance between the through hole at the tail end and the lower end surface of the test block body. Compared with the prior art, the stepped test block is formed by hollowing the interior of the test block body, so that different stepped distributions can be formed when the test block body is positively placed and reversely placed, compared with the existing stepped test block, the number of steps of the test block is doubled, and due to the fact that actual steps are not arranged on the appearance, the two surfaces of the test block are of a stable structure when the test block is placed.

The utility model discloses a PCIe Gen5RDT stepping type test room, which comprises a refrigeration cabinet, an air circulation assembly, a plurality of test chambers and a drawer type cart, the refrigeration cabinet is respectively communicated with the plurality of test chambers through the air circulation assembly, the test chambers are provided with the drawer type cart, the drawer type cart comprises a plurality of test cavities, and the test cavities are communicated with the refrigeration cabinet through the air circulation assembly. And the test cavity is used for testing the SSD hard disk. According to the stepping type test room, air cooling and air circulation are combined, tunnel type air cooling is formed, and rapid heat dissipation of the SSD is effectively achieved.

The present application relates to a method and device for digitizing and applying human posture in a truck stepping test, and relates to the field of truck testing. The method for digitizing and applying human posture in a truck stepping test first collects the coordinates of the stepping point corresponding to each step when getting on and off the vehicle in the real stepping scene, and then calculates the coordinates of the center of gravity of the human body when stepping on each step, and calculates the stepping angle when stepping on each step according to the stepping point coordinates and the center of gravity coordinates of the human body, and finally controls the mechanical arm to perform the truck stepping test according to the theoretical stepping point coordinates on each step and the corresponding stepping angle. The method provided in the present application ensures that the stepping situation in the real scene is restored as much as possible under the test conditions, provides a reliable basis for the loading of human posture in the stepping test, and greatly improves the restoration degree and the accuracy of the test.

The utility model discloses a buffer temperature and pressure acquisition and analysis system, relates to the technical field of buffer test equipment, and aims to solve the problem that whether the structural design of an airborne buffer meets the low-temperature environment requirement of a project or not, research whether the structural design of the airborne buffer has risks or not and research whether related tests are sufficient or not. And whether local structure changes can generate beneficial changes and improvements can be solved. Comprising a buffer and a box body, the buffer is installed in the box body through an installation assembly, the telescopic end of the buffer penetrates through the box body to be exposed outside, and the interior of the box body communicates with external refrigeration equipment through an air pipe; a buffer solution in the buffer is connected with an analyzer through a connecting pipe, after the buffer is verified by a prototype structure, buffer solutions with various low-temperature characteristics are injected, low-temperature tests in multiple temperature ranges (multi-frequency step tests from-55 DEG C to 0 DEG C) are carried out, test data are recorded in detail, and the buffer solution with the optimal performance is screened out for the buffer to use.

The utility model discloses a polymer nanometer reinforced rubber strip strength test equipment after forming, it includes base, tow end, clamping end, tensile testing machine, removal structure, the one end of rubber strip that clamping end clamps, the tow end is used for clamping and through removal structure tow rubber strip's other end removal, forms the pulling of rubber strip, when pulling, through tensile testing machine tensile testing machine test tension, clamping end includes tray, and the tray is installed with carousel, and the motor is installed in the tray, and the drive end of motor is connected with carousel, and the sleeve is installed on carousel, still install two symmetrical clamping plates on the tray, and two clamping plates are connected with the pneumatic cylinder respectively. The test equipment in the utility model can test directly from the rubber strip of winding, need not cut a section in advance to test, and simultaneously, can carry out step -by -step test to every section of the rubber strip of winding, after testing, and let rubber strip keep winding, can improve test efficiency.

The invention discloses a water-turbine generator set speed regulator guide vane step test method. The method comprises the steps of S1, a preparation stage; s2, initializing a speed regulator system of the water-turbine generator set; s3, step signal application and data acquisition: the system generates a corresponding guide vane step signal through an internal algorithm of a speed regulator control system according to step signal parameters preset by a program, and acquires an actual opening position signal of a guide vane in real time through a position sensor mounted on a guide vane servomotor; s4, data analysis and result judgment are conducted, collected data are preprocessed to obtain a guide vane opening change curve, and the change rate of the guide vane opening is calculated based on the corresponding curve; meanwhile, the overshoot of the guide vane opening degree, namely the maximum deviation value of the guide vane exceeding the target opening degree in the step response process, is calculated, and the time required for the guide vane opening degree to reach the stable state is calculated; comparing each performance index obtained by calculation with a preset qualified standard one by one to obtain a judgment result; and S5, generating a test report.

The utility model provides a battery cell cover plate explosion-proof valve test fixture, which comprises an upper clamping plate and a lower clamping plate which can clamp a battery cell cover plate, a hollow area is preset in the middle of the upper clamping plate, a groove area is arranged on the lower clamping plate, a gas channel is arranged on the lower clamping plate, the gas channel is communicated with a vent hole arranged in the groove area, and the vent hole is communicated with the hollow area. The upper clamping plate and the lower clamping plate are connected through a buckle. According to the utility model, the quality of the explosion-proof valve of the cell cover plate is detected through the upper clamping plate and the lower clamping plate, the cell cover plate and the shell do not need to be welded, test procedures are reduced, error increase caused by multi-step test is avoided, and other procedures and materials are not needed in the test process, so that the test cost is reduced to the greatest extent, the test time is saved, and the test efficiency is improved. Therefore, the test efficiency is improved.

The invention discloses stepped vehicle-mounted BOX function test equipment and a stepped vehicle-mounted BOX function test method. The function test equipment comprises a stepped test cabinet and at least one modular test fixture. The test cabinet is provided with a plurality of mounting platforms which are arranged in a stepped and staggered manner, each platform is provided with a plurality of test stations, and a central control unit, a shared function test module and a standardized electrical interface are integrated in each platform; the test tool is detachably installed on the station and is provided with a positioning detection assembly and a plugging test assembly. And the function test module is electrically connected with the test fixture through the test cabinet and is in signal communication with the plugging test assembly so as to perform data interaction with the vehicle-mounted BOX during test. According to the invention, the parallel test of a plurality of vehicle-mounted BOXs and the rapid line change test of different types of products are realized by constructing the architecture of the universal platform and the special jig and combining the stepped spatial layout and the standardized rapid change interface, so that the test efficiency is high, and the space utilization rate is high.

The application discloses an aerogel thermal stability test system and a test method thereof, and belongs to the technical field of aerogel testing. The system comprises a test table and a control seat. An insulation groove for testing the thermal stability of aerogel is arranged at the top of the test table. A heating seat is fixedly connected to the inner side wall of the insulation groove. A test frame is connected to the top of the heating seat through a heat conduction plate. The piston plate is used to drive the oxygen supply through the downward pressing action, so that the mechanical pressure and the flame combustion are coupled in the physical mechanism. Not only the additional control gas circuit is saved, but also the real physical process of "pressure leading to structural deformation, and then affecting the flame impact effect" is simulated. The fire test under dynamic pressure is realized. The key working condition which is difficult to simulate in static or step-by-step test is realized. The protective performance of the material in the extreme dynamic event can be more truly evaluated.

The present invention discloses a method and system for evaluating the performance of a lower limb power-assisted exoskeleton based on a continuous stair-climbing gait. The method includes performing a continuous stair-climbing test on a number of test subjects, and each test subject performs a continuous stair-climbing test with and without an exoskeleton, wherein the continuous stair-climbing test includes multiple complete stair-climbing gait cycles, wherein the stair-climbing gait cycle includes a first double-support period, a single-support period, a second double-support period, and a swing period; muscle activity data and metabolic cost data of the continuous stair-climbing test with and without an exoskeleton are collected; statistical data processing is performed on the collected muscle activity data and metabolic cost data; and the processed data is analyzed to draw conclusions. The power consumption reduction ratio and power-assisted efficiency of the power-assisted exoskeleton are calculated by analyzing the test subject's electromyographic signal, oxygen consumption, and carbon dioxide exhalation, and a comprehensive evaluation of the exoskeleton's performance is performed. The evaluation method is accurate, stable, simple, and easy to implement.

The invention provides an automatic performance testing method and device, and relates to the technical field of performance testing. The method comprises the steps of firstly recording a performance test script corresponding to a to-be-tested application, then debugging the performance test script to generate a to-be-tested script set, then configuring step test scenes for to-be-tested interfaces in batches according to the to-be-tested script set, and finally performing automatic performance test on the to-be-tested interfaces according to the step test scenes. Therefore, the performance test efficiency of the interface can be improved by recording the performance test script corresponding to the to-be-tested application, configuring the step test scene and performing automatic performance test on the to-be-tested interface by using the configured step test scene.

The invention relates to the technical field of test pencils, in particular to a test pencil and a self-checking use method thereof. Comprising a pen body, a power supply assembly, an electricity testing circuit assembly for testing whether an electricity-tested object is electrified, an electricity testing circuit detection assembly for testing whether the electricity testing circuit assembly is intact, and a contact detection assembly for testing whether the electricity testing pen is in good contact with the conductive surface of the electricity-tested object. Whether the electricity testing result is valid or not is judged by judging whether the test pencil is in contact with the conductive surface of the electricity-tested object or not; the three-step electricity testing method is automatically realized, and whether the electricity testing result is effective or not is judged by judging whether the electricity testing circuit assembly of the test pencil is intact or not before and after electricity testing. Therefore, the possibility that the electrified tested object is misjudged to be non-electrified due to poor contact or the fault of the test pencil is effectively solved, the correctness of electricity testing is ensured, the potential safety hazard is avoided, and the working efficiency of electricity testing is improved.

The embodiment of the application provides a health assessment chair assembly, and belongs to the technical field of health assessment. The health assessment chair assembly comprises an assessment chair component, a first sensor component, a second sensor component and a controller. The first sensor component is configured to monitor the sit-to-stand state of a subject. The second sensor component is configured to measure the number of leg lifts of the subject in a step test mode. The controller is configured to obtain the number of sit-to-stand times of the subject in a sit-to-stand test and the time used in the sit-to-stand test according to the sit-to-stand state of the subject in the sit-to-stand test mode. When the controller determines that the subject is in an abnormal step state according to the sit-to-stand state of the subject in the step test mode, the step test mode is exited. The health assessment chair assembly of the embodiment of the application makes the test results of the in-place step test and the sit-to-stand test of the subject more objective.

The present invention provides a step rise time identification method based on quasi-second-order response, comprising the following steps: (1) reading step test data to obtain a set of disturbed data containing a time series; (2) constructing a quasi-second-order response function; (3) solving the undetermined coefficients in the quasi-second-order response function using a genetic function so that the variance between the fitted function and the original data is minimized; (4) based on the obtained undetermined coefficients, taking the moment when the data on the quasi-second-order response function reaches a final value of 0.9 as the rise time. The present invention identifies the rise time by calculating the quasi-second-order response function, thereby avoiding errors caused by manual interpretation based on experience. The present invention is suitable for performance testing and parameter setting of various control systems.

The utility model discloses a two-minute stepping test evaluation device, particularly relates to the technical field of medical instruments, and solves the technical problems of inconvenience in marking process and recording deviation of the existing two-minute stepping test operation method. The device comprises a base with the top provided with a supporting rod, the supporting rod is connected with a measuring body in a sliding mode, and an induction mechanism used for detecting the number of times that the leg lifting height of a patient reaches the standard within two minutes is arranged at the midpoint position of the outer side of the measuring body. A first marking rod and a second marking rod are sequentially connected to the measuring body in a sliding mode in the vertical direction, and a linkage mechanism used for enabling the vertical distance between the first marking rod and the sensing mechanism and the vertical distance between the second marking rod and the sensing mechanism to be kept the same is arranged in the measuring body. By using the device, medical staff do not need to measure related distances and count through a ruler, the marking process is very convenient, and errors are not prone to being generated.

The invention relates to the field of sports test equipment, and discloses a portable detachable weight-bearing bow step test equipment, which comprises a slide rail, a moving plate is slidably arranged in the slide rail, one end of the slide rail is provided with a support assembly, and two corners of the other end of the slide rail are provided with connecting blocks. The connecting block is connected with the mounting base through a fourth fastening knob, the top of the mounting base is connected with a fixing block through a plurality of hinges, the fixing block is connected with a vertical plate through a plurality of second fastening knobs, the rear side of the vertical plate is connected with a handle through an angle adjusting mechanism, and a first clamping block is arranged on the outer side of the vertical plate. By means of connection of the sliding rails, the vertical plates and other components, disassembly and combination are convenient, movement is convenient due to the universal wheels, use is convenient, and mobility is high; secondly, the buckle connection is beneficial to disassembly, storage and maintenance; the height, the angle and the like can be adjusted through a sliding rod, a rotating block and the like to adapt to different conditions, test stability is guaranteed, and the training effect and the data accuracy are improved.