15results about How to "The test data is reliable" patented technology

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 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.

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 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 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.

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.