26results about How to "The test data is reliable" patented technology

The invention relates to the technical field of concrete performance testing, in particular to a high-strength pervious concrete strength testing device which comprises a pressure testing machine, a testing table is arranged on the left side of the pressure testing machine, and a fixing unit used for fixing a concrete test piece is arranged at the upper end of the testing table. A testing unit for testing the compressive strength and the breaking strength of the concrete test piece is arranged above the testing table. The fixing unit used by the invention can accurately and stably fix the concrete test piece at the upper end of the test table, accurately align and stably fix the cubic test piece and the cuboid test piece, ensure that the loading force uniformly acts on the surface of the test piece, and avoid stress concentration caused by position deviation or inclination of the test piece; therefore, the authenticity and reliability of the test result are ensured. According to the invention, the structure of the fixing unit can be flexibly adjusted to adapt to the compressive strength test of the cube test piece and the breaking strength test of the cuboid test piece, so that one machine has two purposes.

The invention relates to a performance test method of composite structure laser ceramic. The method comprises the steps of physicochemical characteristic test and laser output characteristic test of the composite structure laser ceramic. The physical and chemical characteristic test at least comprises a ceramic density test, a microstructure test, a transmittance test, a stress test and an ion doping test; the laser output characteristic test at least comprises pump light absorption characteristic test, thermal lens focal length test, end surface temperature test and laser output power test. According to the invention, by testing the internal structure characteristics and laser output characteristics of the composite structure laser ceramic, the evaluation of the comprehensive performance of the laser ceramic is realized, and rapid optimization feedback is provided for the design and preparation of the composite structure laser ceramic.

This invention discloses a testing device and method for liquid crystal display modules, relating to the field of liquid crystal display module testing technology. The device includes a base, a flipping bracket, a housing, and a testing platform. The testing platform is equipped with a bidirectional clamping device driven by a first motor for automatically clamping the liquid crystal display module for bending resistance testing, and an auxiliary bending mechanism to ensure uniform force distribution. The housing also houses a click-resistance testing mechanism, including an electric hammer, a pressure sensor, and a displacement sensor, for testing the screen's resistance to click pressure. After testing, debris is automatically removed by a multi-stage cleaning mechanism including a scraper and a spray nozzle. When the testing platform flips, the spray nozzle moves closer to the testing platform to improve the cleaning effect. This invention features a high degree of automation, integrating bending resistance testing and click testing, providing accurate testing and thorough cleaning, effectively improving the efficiency and safety of liquid crystal display module mechanical performance testing.

The utility model discloses a tensile force testing machine which comprises a testing machine table for placing a display screen, a material pressing assembly and a tensile force testing assembly positioned above the material pressing assembly, the tension testing assembly comprises a tension testing head, a horizontal displacement module and a Z-axis displacement module, the tension testing head can be driven by the horizontal displacement module and the Z-axis displacement module to move in the horizontal or vertical direction, and the material pressing assembly comprises a pressing support located above the testing machine table; the pressing support is provided with at least one group of downward pressing components along the length direction, each downward pressing component comprises a downward pressing driving part and a downward pressing plate, and the downward pressing driving parts can drive the downward pressing plates to move downwards so as to press one side, close to the golden fingers, of the display screen on the surface of the testing machine table. The device detects whether the gluing fixation of the display screen and the golden finger is stable or not, ensures the stability of signals when the display screen is used subsequently, and is simple in structure and high in applicability.

The invention discloses a benchmark performance testing method and device, electronic equipment, a storage medium and a computer program product, relates to the technical field of automatic testing, is applied to a distributed cluster, and comprises the steps of generating a test case according to a received case factor, executing a benchmark test in the test case for any test case according to a preset concurrent parameter, and executing the benchmark performance of the test case according to the preset concurrent parameter. Obtaining a test execution record of the test case; performing iterative algorithm analysis on the test execution record, and determining a local optimal weight corresponding to each dimension index in the test execution record; and comparing and analyzing the benchmark performance of the distributed cluster from a plurality of dimension indexes based on the local optimal weight. The technical problem of low test efficiency is solved.

The invention discloses a grouting test device and method for simulating secondary lining concrete defects, the test device comprises a test platform and a small grouting machine capable of adjusting grouting pressure, the small grouting machine is connected with a defective concrete test piece test mold through a grouting pipe, the grouting pipe is provided with a pressure gauge, the pressure gauge is connected with data collection equipment, and the data collection equipment is connected with the test platform. All parts of the defective concrete test piece test mold are detachably connected, so that grouting can be completed in different grouting modes and different grouting pressures; the test method comprises the following steps: designing and manufacturing concrete test pieces with different defects, simulating secondary lining in-mold grouting, completing grouting of the test pieces in different solidification stages by adopting different grouting pressures and different grouting modes, detecting the obtained test pieces, researching and analyzing the influence of the grouting pressures, the grouting opportunity and the grouting modes on secondary lining grouting, and obtaining optimal grouting parameters. According to the device and the method, tunnel concrete secondary lining in-mold grouting and defect repair are truly simulated, so that test samples and test data are provided for research of tunnel grout and defect repair engineering.

The utility model relates to the technical field of tire performance testing, in particular to a tire puncture resistance testing device, which comprises a bottom plate, four groups of support columns, a top plate, a plurality of rows of puncture mechanisms, a position adjusting mechanism, a moving mechanism, a lifting mechanism, a lifting plate and a mounting mechanism, and is characterized in that the four groups of support columns are connected with the top end of the bottom plate, and the top plate is connected with the top ends of the four groups of support columns; the position adjusting mechanism is installed at the bottom end of the top plate, the moving mechanism is installed at the bottom end of the position adjusting mechanism, the lifting mechanism is installed at the bottom end of the moving mechanism, and the lifting plate is connected with the bottom end of the lifting mechanism. The multiple rows of puncture mechanisms are arranged and mounted at the top end of the bottom plate, the multiple rows of puncture mechanisms are used for testing tires of different specifications and types, and each of the multiple rows of puncture mechanisms comprises a fixing plate and multiple groups of puncture needles. The utility model provides a tire puncture resistance testing device, and aims to solve the problems of inconvenience in operation, inaccurate testing result, poor universality and the like of a tire puncture resistance testing device in the prior art.

The utility model belongs to electric motor car accessory production technical field, concretely relates to a kind of electric motor car hub cover bolt tension test tool, including placing plate, the upper surface of placing plate is overlapped with hub bottom surface, multiple hub bolts are installed on the hub.The utility model is by the multiple pull rods of axial uniform distribution, make the hub bolt to be measured be pulled in synchronism on its actual installation circumferential position, perfect reproduction its real layout and constraint condition on hub, when using, bolt can be according to the assembly position on hub and be pulled to measure, to accurately simulate the stress condition of hub bolt everywhere, and device is in use, using positioning column is positioned to hub center, then all hub bolts are pulled tight synchronously by the multiple pull rods of axial uniform distribution, ensure that the loading force of tension testing machine passes through hub center, eccentric load is effectively avoided, and test data is accurate and reliable.

The utility model relates to the technical field of curtain wall engineering detection, and discloses a curtain wall engineering detection device, which comprises a box body, one end of the box body is fixedly connected with a water inlet pipeline, the bottom end of the box body is fixedly connected with rollers, the top end of the box body is fixedly connected with a motor box, the interior of the motor box is fixedly connected with a motor, and the motor is fixedly connected with the roller. The bottom end of the motor is fixedly connected with a threaded transmission rod, the bottom end of the threaded transmission rod is meshed with a connecting block, the bottom end of the connecting block is fixedly connected with a push plate, a sliding groove is formed in the box body, and one end of the box body is fixedly connected with a water outlet pipeline. The curtain wall engineering detection device has a good real use condition simulation function, the water pressure function of the test box is controlled, so that the performance of a curtain wall under different water pressure conditions can be accurately simulated, the watertight performance of a curtain wall structure under the actual use condition can be more accurately evaluated, and a more reliable test result is provided; and therefore, the practicability of the device is improved to a certain degree.

This invention discloses an automated testing device for the two-dimensional magnetic properties of a flat plate, specifically comprising a magnetic excitation module, a high-precision measurement module, a two-degree-of-freedom automatic control system, and a support and positioning module. The magnetic excitation module includes a magnetic yoke and an excitation coil. The yoke forms mutually perpendicular magnetic flux loops to ensure the strength of the test signal, while the excitation coil provides the excitation setting for the test magnetic field. The high-precision measurement module consists of a magnetic field strength coil and a magnetic induction intensity probe, which acquire magnetic field strength and magnetic induction intensity data in mutually perpendicular directions. The two-degree-of-freedom automatic control system uses a motor drive to achieve precise positioning and automatic measurement of the measurement module at any test point on the horizontal plane. The support and positioning module ensures the installation position between components and serves as a positioning reference for the test sample. This invention has a compact structure, is easy to operate, has wide applicability, and provides good testing results.

This utility model relates to the field of materials testing technology and discloses a constant temperature heating furnace for a high-temperature tensile creep testing machine. It includes a base cover, a rubber pad fixedly connected to the top of the base cover, a protective shell fixedly connected to the top of the rubber pad, a base plate fixedly connected to the inner wall of the protective shell, a fixed shell fixedly connected to the top of the base plate, a central crossbeam slidably connected to the front side of the fixed shell, a clamping seat fixedly connected to the front side of the central crossbeam, a force-applying rod slidably connected to the top of the clamping seat, a force-applying block fixedly connected to the bottom of the force-applying rod, two rotating plates rotatably connected to the bottom of the force-applying block, and limit plates rotatably connected to adjacent sides of the two rotating plates. Limit blocks are slidably connected to the bottom of the clamping seat. In this utility model, moving the force-applying rod moves the force-applying block, causing the rotating plates at the bottom to rotate, disengaging the limit plates on both sides of the rotating plates from the limit blocks, thus enabling rapid mold replacement.

The utility model provides a sample preparation tool for an I-type fracture toughness test. The sample preparation tool comprises a platform, the upper surface of the platform is horizontal and is used for placing a lower-layer base material; a base material limiting mechanism; the limiting device is arranged on the upper surface of the platform and is used for limiting the end parts of the laminated lower-layer base material and the upper-layer base material and limiting the displacement of the lower-layer base material and the upper-layer base material in the horizontal direction; the film fixing mechanism comprises a first gasket, a second gasket and a gasket pressing part; the first gasket is arranged on the upper surface of the platform, and the thickness of the first gasket is the same as that of the lower-layer base material located at the bottom; the second gasket is arranged on the first gasket, and the thickness of the second gasket is the same as that of an adhesive layer between the lower-layer base material and the thin film; the gasket pressing part is used for pressing the second gasket and the first gasket to the upper surface of the platform. When the sample preparation tool for the I-type fracture toughness test is used for sample preparation, the accurate position of a film in a sample and the accurate and uniform thickness of an adhesive layer can be ensured, and the tool is simple to operate and high in sample preparation efficiency.

The utility model relates to pipeline tensile test method technical field, and disclose a kind of round pipe tensile fixture, including fixed support rod, the outside rotation of fixed support rod is connected with rotary handle, the outside sliding connection of fixed support rod has fixed support rod, the top fixed connection of fixed support rod has loading mechanism fixed slot, the top sliding connection of fixed support rod has big wedge and small wedge, the inside sliding connection of fixed support rod top has big wedge, the utility model has remarkable advantage, one is simulation real force precision test, through big, small wedge cooperation, can accurately reflect the stress strain in round pipe actual engineering, obtain accurate mechanical property data, two are simple and easy to operate efficient, utilize rotary handle and side handle, adjust fixed support rod position to easily realize round pipe clamping loosening, save test time, three are clamped stable and reliable, wedge automatic gap filling, prevent round pipe skewing sliding.

The present invention discloses a device for testing the anti-adhesion property of cigarette plugging paper, comprising the following components: an upper cover (1), the inner side surface of which is a plurality of upper cover semi-cylinders (11) with the same radius arranged in parallel, the upper cover semi-cylinders (11) being cylinders with an arched cross section; a box body (2), the upper surface (21) of the box body having a plurality of holes (211) connected to the inner cavity of the box body (2); and the side wall of the box body (2) having an opening (22). The present invention also discloses a method for testing the anti-adhesion property of cigarette plugging paper using the device. The device of the present invention can qualitatively and quantitatively test the adhesion of simulated plugging paper under different environmental conditions.

The utility model relates to a kind of fruit and vegetable production simulation device for indoor test, belong to agricultural technology field.It is integrated multiple planting module, respectively including fall vine type, hedge wall type, ground planting type and frame type / ridge type planting module, and equipped with ground module;Among them, various planting module uses simulation plant, is not influenced by seasonal environment, and the testing condition of sustainable observation agricultural robot, and each module can be flexibly adjusted, fully simulates real agricultural scene.The utility model provides stable test environment for agricultural robot, which is not affected by season, solves the problem of single and environmental dependence of traditional simulation device, and improves the comprehensiveness and reliability of robot test.

The utility model relates to the field of testing of tire testing machines, in particular to a multi-angle obstacle strip mounting device for a tire clean test. Comprising a fixing frame, a first connecting disc, a pressing block and at least one fixing bolt. The whole fixing frame is of a [-shaped structure. The lower plate is provided with a plurality of round holes, the fixing bolts are in one-to-one correspondence with the round holes, and the fixing bolts are inserted into the round holes; the fixing bolt is sleeved with a nut, and tensioning adjustment is conducted on the fixing bolt by rotating the nut. The pressing block is detachably connected with the first connecting disc, a fixing groove for containing a barrier strip is formed in the lower surface of the pressing block, and the lower surface of the pressing block is in an arc shape. A rubber strip fixing groove is formed in the lower surface of the barrier strip and used for containing a rubber strip. According to the rotary drum punching device, the rotary drum punching link is abandoned, the manpower and material resource cost needed by rotary drum punching is saved, and damage to the integrity of the rotary drum due to punching is avoided.

The invention discloses an AC double-swing-angle milling head reliability test bench with dynamic force and torque mixed loading, which belongs to the field of reliability testing of machine tool parts and comprises a test bench base, a milling head supporting mechanism, an X-direction dynamic force loading device, a Y-direction dynamic force loading device, a Z-direction dynamic force loading device, a tested AC double-swing-angle milling head, a transmission device and a dynamometer. Dynamic cutting force and torque borne by the AC double-swing-angle milling head in the actual machining process can be simulated, simulation loading of dynamic force in the X direction, the Y direction and the Z direction is achieved through the piezoelectric ceramic drivers, high dynamic force frequency can be achieved, and cutting force and frequency of various different machining modes can be simulated; meanwhile, the dynamometer is used for carrying out torque loading on the tested AC double-swing-angle milling head, and different types of stress conditions of the tested AC double-swing-angle milling head in machining are well restored, so that test data obtained in further research are more real and reliable.

The application discloses a wide-band silicon light wafer-level multi-channel coupling error calibration structure and method, and relates to the technical field of silicon light integrated chip wafer-level testing. The structure comprises at least one set of passive straight-through reference gratings; the design parameters of the set of passive straight-through reference gratings are respectively one-to-one corresponding to the design parameters of all working channel coupling gratings in a Die on a wafer, and are completely consistent with the channel number and channel pitch of a fiber array; for each shot: the set of passive straight-through reference gratings are arranged in the non-silicon light chip area in each shot, and are at the same plane height as the coupling gratings on the wafer, and the coupling additional loss matrix of the shot is obtained through testing; the coupling additional loss matrix is used for calibrating the actual measured insertion loss by channel and wavelength, and wafer-level median normalization optimization is carried out to obtain the calibrated insertion loss. The application can eliminate the inter-channel coupling additional loss, improve the calibration accuracy and the accuracy of silicon light wafer testing.

The utility model discloses a kind of fiber drawing experimental device based on press, including push assembly, fixed component and test piece;The fixed component is composed of support cylinder, fixed cylinder and support disc;The support cylinder is equipped with groove and fixed cylinder and is assembled;The fixed cylinder below is equipped with connecting protrusion and support cylinder and is assembled, inner wall is equipped with support groove and lifts support disc;The support disc is equipped with guide rail groove, test piece groove and fiber hole 1;The push assembly is composed of pressure disc, guide rail column, fixed disc, fixed ball and nut;The lower end of guide rail column is equipped with bolt;The fixed disc is equipped with bolt hole and fiber hole 2;The fixed ball is equipped with fiber hole 3;The test piece is composed of fiber and matrix;The fiber passes through fiber hole 1, fiber hole 2 and fiber hole 3, knot is fixed;The utility model discloses a kind of device capable of measuring the bonding relationship between fiber and matrix by press, solve the pain point that cannot be tested due to tensile test equipment shortage, have certain application prospect.

A hydraulic nut testing equipment is used for testing the performance parameters of hydraulic nuts. The main shaft is connected to the box body; the hydraulic nut is threadedly connected to the main shaft, and the hydraulic nut is connected to the pressure ring through a pressure transmission ring, and a pressure sensor is provided between the pressure transmission ring and the pressure ring; a vibration motor, an impact assembly and a displacement sensor are installed on the box body; the pressure sensor and the displacement sensor perform static or dynamic testing on the hydraulic nut. The present invention can scientifically collect and store the operating data of the hydraulic nut, and compare it with its design parameters. It can effectively solve the problem of the relationship between the design parameters of the hydraulic nut and the parameters under actual working conditions, provide data support for the design of the hydraulic nut, and provide technical reference for the selection of the working medium of the hydraulic nut. It has a high degree of automation, and the test data is stable and reliable. It can prevent the oil and the like in the equipment from being thrown out, and can also prevent the operator's hair, clothes, etc. from being accidentally entangled in the rotating parts. It has very high safety performance and can meet the parameter testing of hydraulic nuts of different specifications.

The invention discloses an industrial grade decibel meter-based encoder noise efficient test system, which comprises a test bench, a mounting plate, bases, an electric control cabinet, a test mechanism, an auxiliary mechanism and a control display mechanism, and is characterized in that the mounting plate is arranged in the middle and at the bottom of the test bench, the bases are uniformly arranged at the bottom of the test bench, and the electric control cabinet is arranged in the test bench. The electric control cabinet is arranged on the bottom mounting plate, the testing mechanism is arranged on the upper mounting plate, the auxiliary mechanism is arranged in the testing mechanism and beside the testing mechanism, and the control display mechanism is arranged on the testing rack. According to the scheme, through a special mechanical structure, an excellent sound insulation design, an efficient operation process and stable hardware configuration, the problems that existing equipment is poor in adaptability, insufficient in sound insulation and low in efficiency are solved in a targeted mode, precision, high efficiency and stabilization of encoder noise testing are achieved, and the industrial batch detection requirement is met.

The utility model relates to cable tension technical field, and disclose a kind of cable tension test chuck, including support frame, box and two clamping blocks, adjusting assembly is equipped in the box, two The clamping block is placed oppositely, the outside of two The clamping block is equipped with locking assembly, adjusting assembly includes three-phase asynchronous speed reducer, screw rod, gear mechanism, two pressure sensors, controller and rotary cylinder, the utility model is driven rotary cylinder rotation by speed reducer drive gear mechanism, make screw rod push clamping block automatic clamping cable, cooperate pressure sensor real-time monitoring clamping strength, realize the accurate control of clamping force, avoid cable bruise or clamping not firm;Locking assembly can quickly fix the position of clamping block, adapt to different diameter cable test demand, need not frequently replace fixture;Bellows protective cover protects screw rod moving part, prolongs service life.The device is easy to operate, and test data is accurate and reliable.

The application discloses a standard spectrum ratio test method and system based on direction effect, relates to the technical field of data processing, and comprises the following steps: acquiring power spectrum density sequences of target and reference node signals; identifying an energy pole initial partial beam interval, and dynamically adjusting a boundary according to a wave field polarization degree; calculating an interval initial spectrum ratio to construct a two-dimensional projection matrix, locating a dominant azimuth angle and a resonance frequency according to the two-dimensional projection matrix, and extracting a main polarization direction from a coherence weighting matrix; and finally extracting physical bandwidth and scattering amplitude parameters, combining a deviation angle to calculate a compensation increment, and performing addition reconstruction on an initial standard spectrum ratio to obtain a correction result. The application solves the technical problem of underestimation of coherent energy leakage and amplification effect caused by fixed discrete sampling and surface noise interference under complex terrain, realizes wave field self-adaptive decoupling and directional energy fidelity compensation.

The invention discloses an adjustable inductance clamp applied to a double-pulse test, a control circuit and a control method, and relates to the field of power module double-pulse test, the clamp comprises a double-pulse test board card and an adjustable inductance module; the adjustable inductor module comprises a plurality of field effect transistors and an adjustable inductor; source electrode pins of all the field effect transistors are mutually connected, and one end of the adjustable inductor is an output pin; a drain electrode pin of the field effect transistor is connected with the surface of the adjustable inductor, and the other end of the adjustable inductor is an input pin; a grid electrode pin of the field effect transistor is connected with the microcontroller; and the microcontroller is used for controlling the on or off of each field effect transistor and adjusting the inductance value of the adjustable inductor so as to adjust the stray inductance of the double-pulse test board card. According to the invention, the stray inductance of the double-pulse test board card can be accurately adjusted.

The present invention relates to a photovoltaic junction box diode characteristic detection device, comprising a photovoltaic junction box detection platform, comprising at least one detection station for positioning the photovoltaic junction box, and each detection station is provided with a sensor; a gantry bracket, erected on the photovoltaic junction box detection platform, the gantry bracket comprises a horizontally arranged slide rail, a corresponding number of lifting cylinders are provided on the slide rail corresponding to the number of detection stations, and a test probe is fixed at the bottom of the lifting cylinder; a detection controller, electrically connected to the lifting cylinder and the sensor, when detecting, the photovoltaic junction box is electrically connected to the detection controller, the sensor senses that the photovoltaic junction box is inserted, the sensor feeds back to the detection controller, the detection controller controls the lifting cylinder to descend until the test probe contacts the diode test point in the photovoltaic junction box, and the photovoltaic junction box feeds back the detection result to the detection controller. The detection efficiency and qualified rate are greatly improved.

A hollow fiber membrane performance test device, characterized by comprising a frame, a flux test tube, a pure water storage tank, a test liquid storage tank, a cup holder, a test measuring cup set, an electronic scale, a first conductivity meter, a second conductivity meter, a booster pump, a controller and an output display device. The invention also discloses a test method using the test device. The invention completes the hollow fiber membrane water flux and desalination rate test at one time; pure water and test liquid are used to flush the pipeline in each test, the test process is optimized, and the accuracy of the test data is improved.