32results about How to "Avoid test error" patented technology

The invention aims to provide a gas turbine blade unstable flow visualization testing method, and belongs to the technical field of gas turbine experimental testing. Comprising the following steps: inputting boundary conditions and geometric conditions of a calculation model; numerical simulation flow field data under the condition are obtained through CFD calculation; if yes, the next step is carried out, and if not, a higher-quality grid is generated and returned to the encrypted grid, and CFD numerical simulation calculation is carried out again; selecting a proper resolution ratio based on an actual demand; generating a data source quantity and obtaining CFD calculation data according to the data source quantity; and outputting the three-dimensional transient visual flow field at the moment obtained by the checked high-precision CFD numerical simulation. The actual working condition of the gas turbine blade can be simulated, the test error of an actual instrument under the severe working condition is avoided, and the test difficulty is reduced. The precision of CFD numerical simulation is optimized, and the error is reduced, so that the credibility of the three-dimensional visualization cloud picture is improved.

The utility model relates to the technical field of magnetic device testing, in particular to a magnetic device multi-station testing mechanism which comprises a carrying mechanism and a testing mechanism, the carrying mechanism comprises a portal frame, a carrying transmission module, a carrying connecting frame and a carrying grabbing module, and the testing mechanism comprises a Y-axis transmission module, a testing station and a testing jig. The carrying transmission module is arranged on the portal frame, the multiple carrying grabbing modules are arranged, the carrying connecting frame is arranged on the Y-axis transmission module, the multiple carrying grabbing modules are arranged on the carrying connecting frame side by side, the testing station is provided with an upper testing module and a lower testing module, and the upper testing module and the lower testing module are oppositely arranged. Therefore, the magnetic device on the test fixture can be tested. The device is high in automation degree, a series of operations such as carrying of magnetic devices and testing of each item are automatically completed, manual intervention is reduced, and labor cost is reduced.

This application discloses a double-pulse testing device and method for power semiconductors, belonging to the field of power semiconductor technology. The device includes: a global control module, used to generate a parameter package based on the test task and characteristic parameters of the target device when a double-pulse test is to be performed on a target device, send the parameter package to a target local execution module, and iteratively adjust the parameter package based on the double-pulse test results of the target device fed back by the target local execution module, while simultaneously sending the iteratively adjusted parameter package to the target local execution module until the double-pulse test results of the target device fed back by the target local execution module meet the test objective; and a target local execution module, used to perform double-pulse testing on the target device according to the parameter package issued by the global control module, and to feed back the double-pulse test results of the target device to the global control module. This device can improve the efficiency and accuracy of double-pulse testing of power semiconductors.

This invention discloses an automatic testing method for relay protection devices without configuration based on APPID information. The method involves real-time acquisition of messages from the device under test (DUT), parsing the APPID information of the GOOSE messages sent by the DUT, identifying the IEDname of the DUT based on the APPID information, identifying the bay to which the DUT belongs based on the IEDname, statistically analyzing the IEDname information of all devices within the bay, using regular expressions for matching, identifying IEDname information with the same category as the DUT, manually selecting IEDnames with bay-level association relationships with the DUT, extracting the APPID information of all IEDnames, constructing a message control block based on the APPID information, and outputting excitation quantities to complete the automatic testing of the relay protection device. This invention changes the traditional testing method for relay protection devices, enabling direct testing of protection devices without configuration files, and significantly enhancing the reliability of protection function verification and device linkage testing.

The utility model relates to the field of anchorage bearing capacity detection device discloses an anchorage bearing capacity detection device, including the casing, the inner wall of casing is provided with the sliding column, the right side fixed connection of sliding column has the rack no.

The invention provides a test data generation method and device, and is suitable for the technical field of data processing, and the method comprises the steps: generating primary test parameter population individuals according to product test demand information, product attribute information and test environment interference monitoring information; according to the product test demand information, the product attribute information, the test environment interference monitoring information and the product test precision calculation weight information, obtaining primary test parameter population individual precision information; performing selection processing on the primary test parameter population individuals according to the precision information of the primary test parameter population individuals, and generating secondary test parameter population individuals; and performing crossover variation and iterative calculation on the test parameter population individuals of the generation to obtain target test parameter configuration information, so as to analyze and calculate the to-be-tested product information and generate test data information. According to the invention, the adaptability of test parameters and the accuracy of test results are effectively improved, and test errors are greatly reduced, so that the accuracy and effectiveness of test data are improved.

This utility model discloses a paperboard bursting strength testing device, comprising: a base; a stamping module disposed on the base, the stamping module including a drive assembly and a stamping head, the drive assembly connecting to and driving the stamping head to move vertically; and a fixture module disposed on the base and located below the stamping module, the fixture module including a fixture block, an air suction connector, and an air blowing connector. The end face of the fixture block is used to support the paperboard, the air suction connector can be connected to an air suction pipe for adsorbing and fixing the paperboard, the middle of the fixture block is provided with a pressure groove matching the shape of the stamping head so that the paperboard sinks after being stamped by the stamping head, and the air blowing connector can be connected to an air outlet pipe for blowing air into the pressure groove to blow out the paperboard and / or paper scraps. By applying precise pressure through the stamping module, the fixture module can adsorb and fix the paperboard before stamping and blow air to clean the pressure groove residue after stamping, ensuring the repeatability of subsequent tests, thereby improving the test accuracy, efficiency, and standardization.

The application provides a test device and a test system suitable for the test device. The test device comprises: a current probe sequence comprising a plurality of current probe rows extending along a first direction and sequentially and spacedly distributed along a second direction; and a voltage probe sequence comprising at least two voltage probe rows extending along the first direction and spacedly distributed along the second direction. The voltage probe sequence comprises a first voltage probe row, and the current probe sequence comprises a first current probe row and a second current probe row located on both sides of the first voltage probe row and closest to the first voltage probe row. The first current probe row and the first voltage probe row have a first spacing, and the second current probe row and the first voltage probe row have a second spacing. The ratio of the first spacing to the second spacing is not greater than 1 / 2. The test device can avoid the problem of a false high fill factor test result.

The utility model discloses a textile color fastness testing arrangement relates to color fastness testing arrangement technical field, and its technical scheme is: including frame component, be equipped with test drive assembly in frame component, test drive assembly top is equipped with test movable assembly, frame component top is equipped with test pressure assembly, and the beneficial effect of a kind of textile color fastness testing arrangement is: through electric push rod in test pressure assembly provides controllable driving force, cooperate pressure sensor and pressure display to realize the real -time monitoring and accurate adjustment of friction pressure, replace traditional pressure plate deadweight pressure mode, effectively avoid the pressure fluctuation caused by mechanical vibration, sample surface unevenness etc., ensure that actual friction pressure is consistent with preset value, greatly improve the accuracy and repeatability of test result, simultaneously, operator can adjust pressure value according to different textile types quickly, need not to replace pressure plate, and operation efficiency is significantly improved.

The utility model relates to a sampling device suitable for water vapor quality detection of a power station boiler, which comprises a box body provided with moving wheels at the bottom, a sealed flow cell is arranged in the box body, a cooling assembly is arranged in the sealed flow cell, the sealed flow cell is connected with a sampling pipeline and a feeding pipeline, and the feeding pipeline is connected with the sampling pipeline. And the pipe head of the feeding pipeline is connected with a water pipe universal joint. The device has the function of collecting a water sample to be tested, can ensure the sealing performance of an instrument in the whole test process, can effectively connect various sampling pipe joints of different models on a boiler with a feeding pipeline of the device, and ensures that the temperature and the flow of the water sample to be tested meet the test requirements of the instrument in the test process of the instrument; therefore, the accuracy and effectiveness of field test results are ensured. In addition, the device meets the requirement for portable sampling in field inspection of the water vapor quality of the power station boiler, and the standardization and accuracy of the test are improved.

The application discloses a kind of deep ultraviolet LED epitaxial wafer test methods, comprising: using laser device, marking is carried out on the front of the deep ultraviolet LED epitaxial wafer, to expose the N-type structure of the deep ultraviolet LED epitaxial wafer and form N-type exposure point, after N-type exposure point is made N-type contact point;The front of the deep ultraviolet LED epitaxial wafer is pressed in operation, to form a plurality of P-type contact points on the deep ultraviolet LED epitaxial wafer;The deep ultraviolet LED epitaxial wafer is placed on test support, and the position of the test support is adjusted, so that the P-type contact point of the deep ultraviolet LED epitaxial wafer and the data window of integrating sphere under test support are located on the same straight line;The positive and negative poles of power supply table are connected respectively P-type contact point and N-type contact point, and after power-on, the light data is collected by the integrating sphere, and the light data is sent to host computer.The application solves the problem that N-type layer and P-type layer cannot be accurately connected in the prior art.

The utility model discloses a leather color fastness testing arrangement, include: base, install fixed bolster, and the end of fixed bolster is installed with felt block, sliding seat, along horizontal direction sliding setting in base, the upper surface of sliding seat can place leather, and the felt block is located the top of leather and is in contact with leather, and the upper surface of sliding seat is inclined plane and extends downward to the side of base, fixed subassembly, connect in sliding seat and be used for to leather fixed, drive subassembly, install in base, and drive subassembly are used for drive sliding seat and reciprocate in the horizontal of inclination to the inclined plane upper, to drive the periodic change of friction between felt block and leather. Through the inclined plane sliding seat and drive subassembly cooperation, utilize gravity component force and horizontal reciprocating motion to make felt block and leather friction periodic change, simulate real dynamic friction scene, and then improve test accuracy and the correlation in actual use.

The utility model relates to the technical field of detection devices, and discloses an underground coal mine flame-retardant cable copper conductor detection device which comprises a base, an air cylinder is installed below the base, a base is installed at the bottom of the interior of the base, a sample tube base is installed above the base, a sample tube is placed on the sample tube base, and the sample tube is connected with the air cylinder. A connecting port is formed in the upper portion of the interior of the base, the connecting port upwards extends out of the base to be connected with a container type pipeline module, a pressure sensor is installed on the surface of the right face of the container type pipeline module, and an air inlet device is installed on the container type pipeline module. According to the underground coal mine flame-retardant cable copper conductor detection device, through the arrangement of the integrated container type pipeline module and the air cylinder, an instrument automatically installs a sample tube to a connecting port, operation is more convenient, meanwhile, test errors caused by manual installation of the sample tube are avoided, through an integrated container type pipeline, no pipeline connector exists between valves, and the detection efficiency is improved. Gas leakage points are reduced and a temperature field is uniform.

The invention discloses a phased-array antenna beam forming test method in a darkroom-free environment, and relates to the technical field of satellite communication terminal complete machine testing, comprising the steps of initializing test system configuration, setting test parameters, initializing an antenna state, establishing a test environment, and connecting a test antenna with a channel simulator; cross coupling of non-corresponding channels is isolated and reduced through an algorithm, a signal transmission link between a test antenna and a tested antenna is established through a wireless channel by adopting a virtual wire connection mode, non-contact test is realized, beam forming test is performed, a mobile station moves to a preset test area, impedance of the test antenna is adjusted by adopting an electronic tuning mode, and the antenna is tested. The beam former realizes independent control of an uplink and a downlink, analyzes a test result and generates a report, does not need to depend on fixed test facilities such as a microwave anechoic chamber and a calibration tower, can directly test in an actual working scene, and is particularly suitable for field test of mobile equipment such as a large vehicle-mounted phased array system.

The application provides a refractory compression resistance detection device and method, and relates to the technical field of refractory detection. The detection device comprises a detection box body and an internal positioning assembly, a first heating assembly, a pressurizing assembly and a data acquisition assembly. The positioning assembly supports both ends of the sample to achieve suspended positioning through two positioning blocks. The heating assembly comprises a first heating device that can be lifted and is in contact with the surface of the sample to heat. The pressurizing rod of the pressurizing assembly vertically penetrates the heating device to press the center of the sample. The data acquisition assembly monitors the pressure, temperature and deformation in real time. The device realizes synchronous thermal loading through the cooperative work of the heating and pressurizing assemblies, avoids the thermal history interference problem caused by the separation of heating and pressurizing in the traditional method, can truly simulate the service state of the refractory in the high-temperature industrial environment, and provides accurate data support for the high-temperature compression resistance evaluation.

The invention provides a chip batch test system and method and related equipment, and the system comprises an upper computer which is used for transmitting a test task; the FPGA chip module is connected with the upper computer and is used for receiving the test tasks, classifying the test tasks into a first test task and a second test task according to priorities, correspondingly configuring an independent transmission channel for the first test task and configuring a shared transmission channel for the second test task; and the tested chip is connected with the FPGA chip module and used for receiving and executing the test task sent by the FPGA chip module after channel allocation so as to obtain test data and feeding back the test data to the FPGA chip module, and the FPGA chip module obtains a test result based on the test data. According to the system and the method, the chip testing efficiency is high, and the accuracy is high.

The utility model relates to the technical field of flexible circuit board performance electrical testing, and discloses a pin die insulation and voltage resistance testing jig. The test fixture comprises a base, a connecting seat, a test device and a translation device, wherein the connecting seat, the test device and the translation device are all arranged on the base; the translation device comprises a driving assembly and a guide rail, the testing device is slidably connected to the guide rail, and the driving end of the driving assembly is detachably connected to the testing device; the connecting seat is used for assembling an integrated busbar to be tested, and the testing device is provided with a connector used for being electrically connected with the integrated busbar. Through driving of the translation device, automatic butt joint and separation of the testing device and the integrated busbar are realized, manual operation is reduced, and testing precision and efficiency are improved. The driving assembly is detachably connected with the testing device, and the integrated busbar is detachably connected with the connecting base, so that to-be-tested integrated busbars or testing devices of different specifications can be conveniently and rapidly replaced, the universality and flexibility of the testing jig are improved, the testing requirements of products of multiple models are met, and maintenance of the testing jig is facilitated.

The utility model relates to negative pressure test technical field, and disclose a kind of negative pressure detection device, shell, the shell top is provided with placing mechanism, the placing mechanism top is provided with test mechanism, the placing mechanism top left side is provided with fixed frame, the fixed frame inside is fixedly connected with ammeter, the fixed frame inside is fixedly connected with voltmeter, the placing mechanism inside is provided with printed circuit board, the shell inside is fixedly connected with control mainboard, the test mechanism includes compression assembly and negative pressure component, when using, when needing to carry out negative pressure test work to the printed circuit board of assembly completion, and printed circuit board is placed in placing groove and placed completion time, compression pliers, pressing plate cooperate first guide pillar and elastic press bar, can ensure that pressing plate is stably pressed down, it can be fixed to printed circuit board, simultaneously make the connection point of upper probe and printed circuit board top close contact, avoid the test error caused by poor contact.

This utility model discloses a display screen sealing performance testing device, belonging to the technical field of sealing performance testing devices. It includes a device body with a built-in air pump, a test chamber in the middle of the device body, an electric push rod, a positioning component, and an auxiliary sealing component installed at the bottom of the test chamber, a test air nozzle installed at the top output end of the electric push rod, and an air guide tube fixedly connected between the test air nozzle and the air pump. The positioning component fixes the back of the display screen, and the auxiliary sealing component seals the interface on the back of the display screen. During testing, the back of the display screen faces downwards, and the front is not subjected to downward pressure. The positioning suction cup acts on the back of the display screen, preventing changes in sealing performance due to fixation, thus greatly reducing testing errors. Positive pressure and negative pressure tests are performed separately. The positive pressure test effectively avoids testing errors caused by the frame and polarizer being tightly adhered during the negative pressure test.

The application discloses an intelligent high-voltage test platform for laminated busbar production and relates to the technical field of laminated busbar high-voltage test, which comprises a workbench and a laminated busbar. The upper side of the workbench is provided with a clamping mechanism for clamping and positioning the laminated busbar. Two positioning plates are fixedly connected to the inner wall of the workbench. An industrial camera is used to shoot the laminated busbar upper surface image and compare and identify the image with an internal database in cooperation with a judgment module, so that the system can automatically distinguish whether the current laminated busbar belongs to a large, medium or small type and accurately identify the coordinate positions of the input end and the output end. Thus, the required soft copper wire specification can be automatically determined according to the identification result, and a mechanical hand is controlled to grab a corresponding specification terminal post and insert the terminal post into a busbar terminal. Meanwhile, a corresponding back-shaped plate is driven to slide by cooperating with an electric push rod, so that the automatic magnetic attraction butt joint of a large current generator and the selected soft copper wire is realized.

The utility model belongs to the technical field of plastic shearing clamps, and particularly relates to a plastic shearing clamp which is used for shearing and testing a fiber reinforced plastic sample and comprises a base, a lower pressing groove is formed in the base, a shearing pressing head is arranged in the lower pressing groove, an upper pressing head is connected to the shearing pressing head, and a mounting groove is formed in one side of the lower pressing groove. A mounting groove is formed in the base, a sample preassembling block is mounted in the mounting groove, a reset mechanism is arranged on the shearing pressure head, a fiber reinforced plastic sample is placed in the sample preassembling block and directly and integrally mounted in the mounting groove of the base, a user is allowed to quickly and simply mount and dismount the sample, and the stability and accuracy of the sample in the shearing process are ensured; meanwhile, a user can conveniently replace samples of different specifications or types according to test requirements, and test errors caused by complicated disassembly and assembly are avoided.

The invention provides a testing device and a testing method for a fan control panel. The test device simulates the electrical behavior of the fan through the second programmable logic chip loaded on the test board, so that the test process does not need to depend on the entity fan as a load, the material management difficulty required by the test is reduced, and the test efficiency is improved because a large number of entity fans do not need to be driven to operate. And the testing environment can meet the energy-saving and environment-friendly requirements of low energy consumption and low noise. Moreover, by reserving enough pins in the second programmable logic chip, the test board can support the connection of a large number of fan connectors, so that the implementation of parallel test is facilitated, and the test efficiency is further improved. In the test process, the second programmable logic chip can stably and accurately generate the rotor pulse signal corresponding to the received control pulse signal, and test errors caused by individual differences, mechanical wear or poor contact and the like of entity fans can be avoided, so that the reliability of a test result is improved.

The utility model discloses a rubber tension testing machine which comprises a base, a frame supporting mechanism, a group of sliding mechanisms, a screw rod assembly, a connecting plate, a tension meter, a first clamp and a second clamp, a frame supporting mechanism is arranged in the Z-axis direction of the base, and sliding mechanisms are arranged on the two sides of the frame supporting mechanism. The sliding mechanism is connected with the connecting plate, and the connecting plate is in sliding connection with the frame supporting mechanism. One end of the mounting plate is connected with the screw rod assembly, the other end of the mounting plate is provided with the tension meter, the tension meter is connected with the first clamp, the first clamp and the second clamp are correspondingly arranged in the Z-axis direction, and the second clamp is arranged on the base; the first clamp and the second clamp are each provided with a flexible structure. The device can measure the tensile property of rubber, realizes flexible adjustment, adapts to rubber samples of different shapes and sizes, protects the integrity of the samples, and ensures the stability and consistency in the stretching process.

The utility model relates to the technical field of magnetic device testing, in particular to an automatic inductance and elastic sheet testing mechanism for a magnetic device, which comprises a testing jig, an upper testing module and a lower testing module, and is characterized in that the testing jig is arranged between the upper testing module and the lower testing module and is used for fixing the tested magnetic device; the upper test module comprises an upper support, an upper driving assembly, a first contact assembly, a second contact assembly and a pressing assembly, the upper driving assembly and the pressing assembly are both arranged on the upper support, and the first contact assembly and the second contact assembly are both arranged on the upper driving assembly; the upper driving assembly is used for driving the first contact assembly and the second contact assembly to make conductive contact with the magnetic device. The lower test module is used for conducting contact with an elastic sheet on the lower surface of the magnetic device. According to the utility model, the comprehensiveness and the reliability of the performance test of the inductance and the elastic sheet of the magnetic device are improved, and the higher requirement on the quality control of the magnetic device under the scenes of industrial production and the like can be met.

The utility model belongs to gear drive and speed reducer technical field, specifically disclose a gear box torque test bench, including device frame, the outer surface of device frame is connected with support frame through fastening mechanism sliding, support frame is provided with a plurality of evenly distributed sleeve, the sleeve is movably inserted with drive shaft, the top fixed mounting of device frame has fixed cylinder, the bottom rotatable connection of fixed cylinder has internal thread, the outer surface fixed connection of internal thread has connecting plate. The gear box torque test bench, through double rotation coordination mechanism can make the friction head in the rotation simultaneously revolve, thereby let the friction head to all drive shafts contact friction, namely can carry out temperature rise test to multiple drive shafts simultaneously, has guaranteed to each drive shaft's friction condition is consistent, this kind of design avoided the test error of traditional test because of the friction condition is not uniform, improved the precision of temperature rise test.

The utility model discloses an adhesive force testing device for adhesive tape production, which comprises a testing frame, an upper support is arranged at the top of the testing frame, a screw sleeve is arranged below the middle of the upper support, and extension plates are arranged on the front side, the rear side and the left side of the screw sleeve. Fixing side plates are fixedly arranged below the two sides of the outer wall of the testing frame, a lower support is arranged between the tops of the fixing side plates, the lower support is located below the threaded sleeve, a guide rod is arranged on the parallel side of the threaded sleeve, tension meters are arranged on the front side and the rear side of the threaded sleeve correspondingly, and a clamping groove is formed in the lower support. Fixing piles are fixedly arranged on one side of the outer wall of the fixing side plate, the two fixing piles are oppositely arranged, and a to-be-tested table is arranged between the two fixing piles. According to the adhesive force testing device for adhesive tape production, a user can know the performance of the adhesive tape under different temperature conditions, interference of environmental fluctuation can be effectively eliminated for temperature control, and the adaptability of the device to adhesive force detection of the adhesive tape is improved.

The utility model discloses an electrode auxiliary support and pH tester, electrode auxiliary support includes support rod, and the support arm for supporting pH electrode of being sleeved on support rod, support rod is screw rod, be equipped with the axle hole for being sleeved on the tester support rod in support rod, be equipped with the first nut for fixing the height of support arm on the support rod of support arm lower side. The utility model discloses support rod can be directly sleeved on the support rod of existing pH measuring instrument, and support rod is screw rod, and the tester can fix the height of support arm after determining the pH electrode height according to sample container, avoids the test error of electrode height, and promotes test result consistency and accuracy.

The utility model relates to the technical field of capacitor testing equipment, in particular to an automatic sorting testing machine for laminated capacitors, which comprises a machine table, a base plate is arranged on the machine table, and an auxiliary positioning assembly is arranged on the base plate. The auxiliary positioning assembly comprises a tool bottom plate installed on the chassis, a plurality of sets of test limiting cavities are formed in the two faces of the tool bottom plate, a rectangular groove is formed in the transverse middle of the tool bottom plate, a guide rod is arranged in the rectangular groove, and notches are formed in the ends, close to the guide rod, of the test limiting cavities in the two ends of the tool bottom plate. The auxiliary positioning assembly further comprises an abutting plate, multiple sets of test limiting cavities are formed in the two faces of the tool bottom plate, a telescopic air cylinder is combined to drive a guide rod to drive the abutting plate, multiple sets of laminated capacitors can be rapidly and accurately positioned at the same time, the positioning efficiency is greatly improved, and compared with a traditional single capacitor sequential positioning mode, the positioning efficiency is greatly improved. The number of capacitors tested in a positioning mode in unit time can be increased by several times, and the efficient detection requirement of large-scale production is effectively met.

The invention belongs to the technical field of communication testing, and particularly relates to a multi-system wireless testing method and system based on FPGA reconstruction, which are applied to a testing system consisting of backplane interconnection, eight-channel signal processing, a radio frequency channel, a clock, a master control and a power supply module through power-on self-test, power supply, clock distribution and bus establishment. Matching and uploading FPGA reconstruction firmware of a to-be-tested system, and dynamically loading the firmware based on an FPP * 32 mode to complete FPGA reconstruction; analyzing a test instruction of the upper computer, issuing parameters by sub-buses, and completing radio frequency link establishment and time sequence calibration; multi-system radio frequency signal receiving and transmitting and baseband processing are completed in a transmitting / receiving mode, and test data are generated; the working states of all the modules are integrated; power failure is not needed, and the steps S2-S5 are repeated to realize multi-system test seamless switching; and finishing test ending and system resetting. Flexible adaptation of multi-system testing is achieved through FPGA dynamic reconstruction, the testing efficiency is greatly improved, and the testing cost is reduced.