383results about How to "Improve test accuracy" patented technology

The utility model discloses an optical module test system which comprises a rack, a mechanical arm is arranged on the rack, and a feeding station, a code scanning station, an end inspection station, a plugging station, a test station and a discharging station are arranged on the periphery of the mechanical arm. The plugging station is used for connecting or separating the optical module and the optical fiber; the code scanning station is used for identifying and acquiring information of the optical module; an end detector is arranged on the end detection station; a high and low temperature detector is arranged on the test station; the manipulator is arranged to transfer materials among the stations, automation of the optical module testing process is achieved, manual operation is reduced, testing efficiency and accuracy are improved, and labor cost and personal errors are reduced. In addition, all the stations are arranged around the manipulator, the structure is compact, the occupied space is small, the system is particularly suitable for use scenes with high requirements for the site and the occupied area, meanwhile, operation of the manipulator and circulation of materials are facilitated, and the operation efficiency of the system is improved.

This utility model discloses a test lightbox for image acquisition in vision-based color fastness testing of textiles. It includes a first housing with a tray on its bottom wall. The upper surface of the tray has a groove for holding a sheet of material to be tested. A window communicating with the interior space of the first housing is also provided on one side of the first housing. The tray is slidably connected to the bottom wall of the first housing. An illumination source is also provided inside the first housing. A second housing is located on top of the first housing. The second housing contains a camera device and a power module. A mounting through-hole communicating with the interior space of the first housing is provided on the bottom wall of the second housing. The camera device is embedded in the mounting through-hole so that its field of view covers the tray inside the first housing. This test lightbox can provide highly consistent and repeatable image data, laying a reliable foundation for subsequent image analysis and color fastness assessment, thereby improving testing accuracy and efficiency.

A device for measuring in-situ drilling rock hardness based on a high-pressure water pressure head comprises a hydraulic power system, a data acquisition system, a test probe and a push rod, the front end of the push rod is connected with the rear end of the test probe; the hydraulic power system comprises a manual hydraulic plunger pump; the manual hydraulic plunger pump is connected with the test probe through a reversing three-way valve; the data acquisition system comprises a data recorder, a displacement sensor and a pressure sensor, the displacement sensor and the pressure sensor are arranged on the manual hydraulic plunger pump, and the displacement sensor and the pressure sensor are connected with the data recorder through a signal receiver. The device is simple in structure, convenient to operate and capable of measuring the rock strength of different drill holes, different depths and different point positions so as to obtain the distribution condition of the roadway rock strength, the measuring result is close to the on-site rock mass, a water medium is used for pressure transmission, the measuring process is simple, convenient, environment-friendly and safe, errors in the processes of sampling, processing and the like are avoided, and the working efficiency is improved. And the measurement cost is reduced.

The embodiment of the invention provides a multi-module automatic testing method and device, electronic equipment and a storage medium, a to-be-tested target function module and a corresponding association module are obtained, and the association module is called in the operation process of the target function module and can influence the operation result of the target function module; according to the execution logic of the target function module and the association module, generating a contract file of the association module, the contract file being used for representing an expected operation result corresponding to the target function module when the association module executes at least one execution action; and when the test of the target function module is executed, obtaining a test result of the target function module by configuring the contract file. By generating the contract file corresponding to the association module and configuring the contract file when the target function module is tested, the test case corresponding to the association module is automatically obtained and executed, so that the efficiency and accuracy of software testing are improved.

The invention discloses a high-speed heavy-load working condition bearing dynamic stiffness testing device and testing method, and relates to the field of bearing testing. The invention solves the problems that the existing bearing dynamic stiffness test technology and equipment only can load in a single direction, cannot simulate axial and radial composite loading, depends on contact transmission, is insufficient in heavy load bearing, lacks system vibration error suppression measures, and is poor in reliability. And the high-precision test requirement of the independent rolling bearing under the high-speed heavy-load composite working condition is difficult to meet. A shafting supporting module is arranged on the upper portion of a test bench support, a measuring module is located over the shafting supporting module, an axial loading module and a radial loading module apply axial force and radial force to a tested bearing respectively, and a driving module drives a supporting shaft and an inner ring of the tested bearing to rotate. Axial and radial composite loading under the high-speed heavy-load working condition can be achieved, axial and radial displacement can be monitored synchronously, system errors are reduced, and high-precision measurement of the dynamic stiffness of the bearing is achieved.

The utility model discloses a seat movable armrest rotation durability detection device, which comprises a frame, a support assembly and rotation modules are arranged in the frame, at least one group of stations for loading seats are formed on the support assembly, the number of the rotation modules is the same as the number of the stations, and the rotation modules are in one-to-one correspondence with the stations. The rotating modules are connected into a power module through corresponding air pipes, and the rotating modules can drive the movable armrests of the seat to rotate in an opening and closing mode through control of the power module. The device further comprises a control system, the power module is in electric signal connection with the control system, and the power module can be controlled through the control system. According to the utility model, the rotation durability test is carried out on the movable armrest of the seat, the structure is simplified, the cost is reduced, and the test accuracy is improved.

The utility model discloses a self-adaptive force stabilizing device for characterizing a mechanoluminescence cycle process, and belongs to the technical field of material testing. According to the device, collaborative operation is achieved through a reciprocating testing mechanism and a force loading mechanism which are in linkage design; the reciprocating testing mechanism drives a lead screw transmission assembly through a servo motor to drive a single-axis moving platform, a pressure digital display and a material to achieve reciprocating friction in the y-axis direction; the force loading mechanism pulls a sliding platform to slide on a sliding rail through a spring, a round-bottom quartz tube is arranged at the end of the force loading mechanism and is in point contact with a sample of a pressure digital display accessory, and when the sample is slightly abraded to cause position change, the spring dynamically compensates pressure loss to ensure that force loading in the x-axis direction is constant. An optical fiber is integrated in the round-bottom quartz tube to synchronously collect mechanoluminescence signals. The device solves the problem of force attenuation in the existing cycle test, and is beneficial to systematic research on the cycle characteristics of the mechanoluminescent material.

The application provides a kind of based on multiple range adaptive switching pressure reducing valve transient response data acquisition method and system, it is related to fluid control technical field, the method includes: step 1, obtains the preset test working condition parameter of pressure reducing valve, based on the pressure threshold value and flow interval in preset test working condition parameter, from multiple parallel test channel adaptive matching and switch to target range branch, construct initial fluid conduction loop;The centroid position, moment of inertia, polar moment of inertia and bending center of the fluid passage section of target range branch are executed analytical calculation, obtain section geometric characteristic parameter;Step 2, based on section geometric characteristic parameter and the flow cross section characteristics of initial fluid conduction loop, establish reference pressure field with stable negative pressure gradient on the outlet side of pressure reducing valve, and real-time monitoring steady state convergence state of reference pressure field.The application realizes the standardized collection of pressure reducing valve in positive pressure-negative pressure full working condition, high-low flow range under transient response.

The application discloses a positioning system error testing method, and belongs to the technical field of positioning. The method comprises the following steps: determining the coordinate systems of a measured system and a positioning reference system, and the positions of a test target point and a measured target point on a carrier; controlling linear motion of the carrier, and calculating a deflection angle between the two coordinate systems through a plurality of coordinate points of the test target point and the measured target point on a track of the linear motion; controlling rotation and linear motion of the carrier, acquiring a plurality of coordinate points of the test target point and the measured target point on a linear motion track after each rotation before the rotation, and an included angle between a longitudinal axis of the carrier and a coordinate axis of the measured system; and calculating errors of the measured system at each measurement point based on a preset relationship between positioning errors and distances between the two target points. The application has low requirements on the test target point and the measured target point in the testing process, can simplify coordinate system conversion calculation, and improves the accuracy of a positioning precision test result.

The utility model discloses a burning test fixture for a PCB (Printed Circuit Board), which comprises a test platform, a control circuit board, a test probe and a display screen, and is characterized in that the test platform is used for fixing the PCB to be tested; the control circuit board is installed in the test platform. The test probe is electrically connected with the control circuit board and is used for being in contact with a test point of the PCB; the display screen is installed on the test platform, is electrically connected with the control circuit board, and is used for displaying test data. Direct display of test data is realized through the integrated display screen, and an external computer terminal is not needed; a user can check a test result in real time, data transmission and display through external equipment are not needed, and the test intuition and response speed are remarkably improved; and the fixture can be more conveniently applied to workshops, laboratories or mobile test scenes without depending on an external computer terminal, so that the adaptability is higher.

The utility model discloses a kind of high-precision plug-in durability test equipment, belong to quick coupling detection technical field, including test box, the inside fixed connection of test box has workstation, the top fixed connection of workstation has the bottom plate of upper and lower parallel distribution, and fixedly connected with precision guide rod between bottom plate;The utility model, the setting of precision guide rod ensures that the sliding direction of push plate is accurate, prevents push plate deviation and causes plug alignment deviation;Female plug and female plug base thread connection, male plug and male head base bolt fixing mode, both facilitate staff to dismantle replacement female plug and male plug at any time, adapt to the test demand of different model plug, improve equipment versatility;Driving unit drives push plate to complete plug-in action automatically, replace manual operation, not only improve test efficiency, also avoid the error of manual operation, ensure the consistency of test result.

A rotor engine comprehensive bench test system and test method belong to the technical field of engine test. The system contains rotor engine, AC power dynamometer, main control unit and other groups of modules. The dynamometer can realize forward and reverse reversible rotation of the engine. The main control unit is provided with forward and reverse switching and three-stage alarm module. Each component is connected and communicated. Sensors, acquisition modules, analyzers and the main control unit are cooperatively networked. The test method sequentially completes bench building, system inspection, pre-starting verification, lubrication establishment, engine starting, top dead center searching, mechanical loss test, warming, full-range boundary monitoring, hot-state running-in, ECU online calibration and data evaluation. The combustion analyzer can calculate cylinder pressure parameters. ECU modified parameters take effect immediately. Data analysis covers power and economic indicators. The present invention solves the problem that existing benches cannot adapt to rotor engine tests, builds a safe and efficient comprehensive test platform and provides technical support for rotor engine research and development.

This utility model discloses a warehouse vehicle wiring harness torsion testing device, characterized in that it includes a frame and at least one rotary mechanism assembly mounted on the frame, and a control unit for controlling the rotary mechanism assembly; the rotary mechanism assembly includes a rotary plate rotatably connected to the frame, and a rotary drive component for driving the rotary plate to rotate relative to the frame is provided between the rotary plate and the frame; a telescopic component is connected to the lower end of the rotary plate, and a handle connecting seat is provided at the lower end of the telescopic component. This application, by setting a rotary mechanism and a control unit for wiring harness torsion testing, drives the forklift handle to rotate through the rotary structure. The rotary structure of this application can not only drive the handle to rotate horizontally, but also to rotate vertically, which is closer to the actual working conditions, improves the accuracy of the test, and can detect the status of the forklift wiring harness in real time during the test, so as to accurately obtain the node where the forklift wiring harness has a fault.

The conductive light shield for a probe station of the present invention for cable connection pin clips includes a conductive shield body and a light-absorbing layer. The conductive shield body covers the outside of the pin clip on the probe station. The conductive shield body includes a top wall and side walls extending downwards from the edge of the top wall, with one end of the side wall away from the top wall contacting the probe station. The conductive shield body provides electrostatic shielding and optical protection, ensuring that the pin clip is protected from electrostatic discharge and stray light interference during testing, thereby improving testing accuracy and stability. Cable openings are provided on the side walls to accommodate the cable layout between the pin clip and the testing machine, ensuring that the cable can pass smoothly and maintain a normal connection with the testing system. The light-absorbing layer is disposed on the surface of the conductive shield body. The organic carbon black coating has good light absorption properties and can effectively absorb stray light from the environment, reducing interference from light reflection on the optical alignment system.

This invention discloses a continuous conductivity testing bench for lubricating grease and its testing method. The test bench includes a grease pump, a conductive base plate, a heating module, and an upper conductive plate. It can continuously measure the dynamic conductivity of the lubricating grease before and after breakdown and before and after blockage at a preset temperature, calculate the average conductivity during the continuous thickness change process, and conclude that the grease thickness is different when breakdown and blockage occur. It obtains the accurate values ​​of the grease thickness in the test area corresponding to each breakdown and blockage. In the blockage analysis, the volume of the grease to be injected into the test area is calculated by integration. Based on the instantaneous volume flow rate detected by the elliptical gear flow meter, the actual volume of the grease to be injected into the test area is calculated, and the flow rate of the grease pump is adjusted to ensure that the difference between the volume of the grease to be injected into the test area and the actual volume of the grease injected into the test area is within a preset range. This avoids the pressure changes caused by insufficient grease thickness or excessive grease affecting the test accuracy.

This application relates to the field of HVAC and building energy conservation technology, and discloses a method and system for testing air conditioning equipment. One specific implementation of the method includes: receiving target conditions for testing the air conditioning equipment; performing semantic path reasoning using a pre-established association model to determine a target load mode and target test dataset matching the target conditions, and generating a test script; executing the test script to drive the air conditioning equipment to operate under the target load mode, and collecting operating data of the air conditioning equipment during operation; and using the operating data to determine and output evaluation indicators for the air conditioning equipment, wherein the evaluation indicators reflect the air conditioning performance and operating energy efficiency. This implementation can generate dynamic test conditions that conform to the characteristics of real building use without relying on traditional static experimental conditions, improving test accuracy, efficiently completing the evaluation of air conditioning equipment performance and operating energy efficiency, and providing a reliable basis for the optimized control of air conditioning equipment.

The invention discloses a control method of a test system and the test system, and relates to the technical field of electrothermal alloy wires, and the method comprises the steps: starting a first heating mode of a power module in response to a test start instruction, so as to enable the electrothermal alloy wire to be electrified and heated; the first real-time temperature of the electric heating alloy wire is collected; responding to the condition that the first real-time temperature is equal to the preset target temperature, controlling the power supply module to be switched to a second heating mode; acquiring a second real-time temperature of the electrothermal alloy wire, and determining a real-time difference value between the second real-time temperature and the target temperature; in response to the fact that the real-time difference value is larger than a preset temperature threshold value, the output current of the power module is adjusted through a current control unit until the third real-time temperature of the electric heating alloy wire is equal to the target temperature; if the electric heating alloy wire is detected to be fused, the power module is controlled to be powered off, and the test is finished; and storing test parameters in the test process, and generating a test result of the electrothermal alloy wire based on the test parameters. The control method can effectively improve the test efficiency and the test precision.

The application aims to provide a dielectric property testing system and method of a wave-transparent material under high temperature and high pressure, and belongs to the technical field of microwave and millimeter wave dielectric material testing. The system innovatively adds a temperature device for heating and a pressure device for pressurizing in a conventional quasi-optical cavity method testing device, and sets a fused quartz considering the influence of temperature and pressure on the optical cavity, so that the system can test the dielectric property of the wave-transparent material under high temperature and high pressure by using the quasi-optical cavity method. Meanwhile, the system is simple to operate and has high testing precision.

The utility model discloses an airplane wheel rotation driving device, which belongs to the technical field of rotation driving devices, and comprises a rotation driving equipment table and a friction wheel, the friction wheel is arranged on one side of the rotation driving equipment table, a turnover adjusting mechanism is arranged between the rotation driving equipment table and the friction wheel, and the turnover adjusting mechanism comprises a turnover angle adjusting frame, a rotating shaft and an adjusting assembly. The rotating shaft is rotationally connected to the interior of the belt rotating equipment table, and the overturning angle adjusting frames are fixed to the two ends of the rotating shaft; according to the utility model, through the arrangement of the overturning adjusting mechanism, the lifting toothed plate is driven by the lifting air cylinder to be in meshing transmission with the driven gear, so that the friction wheel is automatically overturned and moved out, reset and stored, the use state and the idle state are freely switched, the operation is simple, convenient and efficient, and the friction wheel can be completely stored in the accommodating groove of the belt rotating equipment table when being idle; the device is flush with the surface of the equipment table, so that the occupied space is greatly reduced, avoiding space is provided for airplane wheel falling, interference to airplane traction and other testing operations is avoided, and the smooth testing process is guaranteed.

The utility model relates to the technical field of shoe sole wear resistance testing, in particular to a clamp damage prevention structure of a shoe sole wear resistance machine, which comprises a base, two sides of the top of the base are provided with clamping parts for clamping two sides of a shoe sole, the middle of the top of the base is provided with a supporting part for supporting the shoe sole, and the upper ends of the clamping parts are provided with clamping heads. A driving part is installed in the base close to the lower end of the clamping part, and the middle of the clamping part is rotationally connected with the base through a pin shaft. According to the clamp damage prevention structure of the shoe sole wear-resisting machine, the clamping components on the two sides of the top of the base are matched with the supporting component in the middle, and a shoe sole can be fixed in multiple directions. The driving component drives the lower end of the clamping component to move, the clamping head tightly presses the side face of a shoe sole according to the lever principle, the supporting height can be flexibly adjusted by combining the jacking component at the bottom of the supporting component, and accurate and stable fixing can be achieved for conventional shoe soles or shoe soles of irregular shapes and different sizes.

The invention relates to a regression test method and system for position information release and electronic equipment, and the method comprises the steps: obtaining a plurality of groups of test case data suitable for a target position based on a preset test case data set, the test case data comprising legal user identity data, test data and expected data; performing simulation release of target position information based on the test data of each test case; release response data of multiple dimensions are obtained, and verification is carried out based on the expected data of each test case in each dimension and the release response data; and recording data generated during simulation release of the target position information, release response data of multiple dimensions and verification data, and generating a regression test report for release of the target position information based on the recorded data. According to the invention, the test efficiency is improved, the manual labor amount is reduced, the test accuracy is high, the coverage is wide, and the expandability is high.

The application is a kind of automation testing and application fluency testing method based on control matching, relating to the field of Android end automation testing.The application method comprises: setting a test script containing behavior simulation and fluency determination in advance, reading the corresponding test script after the Android end receives a test command; acquiring interface control structure positioning target control, executing simulation operation; starting timing after each simulation operation, and acquiring all control elements of the current interface when reaching the set time threshold, judging whether the interface is loaded or not in combination with the interface structure information recorded in the fluency determination script; obtaining application fluency determination result according to the interface loading condition at different time thresholds and returning to the server end.The application does not need to acquire ROOT permission, does not need to connect PC end for testing, is safer, is more convenient to use, reduces the adaptation cost, and is higher in testing accuracy and testing speed.

The utility model discloses a powder coating UV ultraviolet ageing test box, including test box body, a plurality of load trays and a plurality of sample pieces coated with powder coating, the left and right sides inner wall of simulation chamber all are fixedly connected with support frame, and the opposite side wall of two support frames all is equipped with a plurality of equidistance distribution's rectangular slot. The utility model discloses through the load tray is inserted in the rectangular slot on the both sides support frame, make the strip arc convex in the rectangular slot sliding insertion in the arc slot, and the positioning of load tray is convenient quick, and the easy falling off is prevented simultaneously convenient operation, through the partial sample piece is respectively inclined and leans on a plurality of conical limiting convex and is limited with the strip convex, and the other part sample piece is vertically inserted in the strip slot on a plurality of conical limiting convex, and the positioning support of a plurality of sample pieces is quick and effective, and a plurality of sample pieces make full contact with simulation environment, improve test accuracy.

The invention discloses a method and system for detecting the internal quality of a polyethylene pipeline hot-melt welding joint, and belongs to the technical field of pipeline quality detection.The method comprises the following steps that before a tensile test is carried out, ultrasonic quality detection is carried out on a casual inspection joint of a polyethylene pipeline set to be detected; dynamically determining an initial tensile rate based on the material grade and the material attribute parameter of the to-be-tested polyethylene pipeline group, and executing a first tensile test at the initial tensile rate; iteratively and dynamically adjusting the tensile rate of the tensile test of the next casual inspection joint based on the tensile test result of the previous casual inspection joint until the tensile test of each casual inspection joint is completed; dynamically executing fracture quality detection based on the fracture position and the fracture characteristic parameter of each spot check joint to obtain a fracture quality detection result of each first joint; and executing internal quality comprehensive detection based on the ultrasonic quality detection result, the fracture quality detection result and the tensile test result of each first joint.

The application provides a delay test system and method based on a Hall switch device, comprising: a magnetic field generation module containing a programmable current source and a coil to generate a precisely controlled magnetic field change; a temperature control module integrating a temperature sensor and a heating / cooling device to realize constant temperature or temperature scanning test; a signal acquisition module using a high-frequency sampling device to collect Hall device output signals; a data processing module using an embedded processor to realize automatic threshold detection and delay calculation; a general test interface using a test seat with replaceable probes to adapt to different packaged devices; a digital communication interface using an SPI or I2C interface to output test results; in the application, the main structures include a magnetic field generation module, a temperature control module, a signal acquisition module, a data processing module, a general test interface, a digital communication interface and a threshold calibration module, and these modules cooperate with each other to provide a solid foundation for precisely testing the delay characteristics of the Hall switch device.

This utility model relates to a testing device for the bonding performance of rubber vibration isolators. The device has mounting plates bonded and fixed to both the upper and lower ends of a buffer pad. Unlike existing technologies, a fixed plate is provided on the lower side of the buffer pad. A support mechanism in the middle of the upper part of the fixed plate abuts against the lower mounting plate. Limiting mechanisms on both sides apply tension to the lower mounting plate, constraining the position of the buffer pad and the mounting plate in conjunction with the support force. The testing mechanisms on the left and right sides of the upper part of the fixed plate are at the same horizontal level as the upper mounting plate. The testing mechanisms are mainly composed of bidirectional bolts. When the bidirectional bolts are rotated, the driven parts move closer together, and combined with the constraint of the positioning tube on the bidirectional bolts, the longitudinal height of the bidirectional bolts can be adjusted. Because the follower block I is movably connected to the upper mounting plate, an oblique upward thrust can be applied, simulating the oblique tensile action in actual applications, thus more accurately testing the bonding strength and reliability between the components of the rubber vibration isolator.

This application provides a multimodal automatic testing system and method, relating to the field of industrial process control system testing technology. The multimodal automatic testing system includes a computing and control unit, a PXI chassis, a signal conditioning chassis, an interface connection unit, a power supply unit, and a human-machine interaction unit. The system is equipped with an automatic testing software platform, including modules for test case management, script generation and parsing, hardware abstraction and channel mapping, signal generation and scheduling, data acquisition and result judgment, log recording and report generation, and human-machine interaction and control. This application can achieve unified simulation and acquisition of multimodal signals on a single platform, featuring high testing accuracy, high automation, strong versatility, and cross-platform adaptability, effectively improving the coverage and execution efficiency of domestically produced DCS platform testing.

This invention discloses a six-dimensional force sensor detection device and method, belonging to the field of sensor testing technology. The six-dimensional force sensor detection device includes a support base, a load-bearing component, and a loading component. The support base has a mounting surface extending vertically, and one end of the six-dimensional force sensor is connected to the mounting surface. The load-bearing component is disposed at the other end of the six-dimensional force sensor and extends away from the mounting surface in a direction perpendicular to the mounting surface. Multiple test positions are provided on the load-bearing component. The loading component is configured to apply external force to the test positions. The six-dimensional force sensor detection method using the above-described six-dimensional force sensor detection device can perform far-field testing, near-field testing, response time testing, zero-drift testing, impact testing, and automated working life testing. It has a simple structure, small size, and can detect multiple performance indicators of a six-dimensional force sensor with a single device, saving costs and time, providing high testing accuracy, and is reusable.

This utility model relates to the field of aggregate soundness testing technology, and discloses a fully automatic aggregate soundness testing instrument, including a testing instrument with an automatic drying chamber and a soaking tank inside. Two moving components are located on the top of the testing instrument, and a draining basket is also located on the top. A stirring assembly is located inside the draining basket, and the stirring assembly includes a stirring frame. The outer wall of the stirring frame is rotatably connected to the inside of the draining basket, and a ring-shaped array of stirring rods is fixedly connected to the outer wall of the stirring frame. In this utility model, the motor drives a pair of transmission belts and the stirring frame, in conjunction with a brush plate and stirring rods, to clean the gaps in the draining frame and stir the aggregate. This breaks air bubbles, helps the aggregate to soak fully, accelerates draining, and improves testing efficiency. It solves the problems of cumbersome manual operation, air bubbles affecting the test, and slow draining, thus improving testing accuracy and equipment automation.

The utility model belongs to the technical field of pressure sensors, and particularly relates to a pressure sensor with high temperature stability. The pressure sensor comprises a glass base and a silicon sensitive structure, the silicon sensitive structure and the glass base wafer are bonded to form a measurement cavity; the glass base is provided with a central through hole which is communicated with the measuring cavity; a graphical notch groove is etched on the glass base; according to the utility model, under the condition that the cost is not obviously increased, the stress influence of the pressure sensor during temperature change is improved, so that the test precision of the pressure sensor is improved, and the pressure sensor has a good application prospect.