71results about How to "Rich test content" patented technology

The invention relates to a material mechanical property in-situ testing system and method in a dynamic and static load spectrum, and belongs to the field of mechanical tests. The system integrates the following functions: a static testing function of biaxial drawing and shearing in an orthogonal plane, a shearing static testing function, a double shaft pull-pull mode fatigue testing function, and a static/dynamic press testing function. A complicated static/dynamic load spectrum can be established. Multi-mode composite load mechanical property evaluation can be performed on a film material or a block material, for example: high-cycle fatigue tests based on double-shaft pre-stretching load and impact press tests based on double-shaft stretching-shearing pre-load. At the same time, special defects are pre-fabricated on the central area and cross shaped arm area of a test piece; the analysis functions of a variable-zoom optical imaging system or a digital speckle strain analysis system can be utilized; the provided system and method can also be used to research the deformation behavior and cracking expansion rules of micro defects in a component under a multi-dimensional stress, and an evaluation tool is provided for performance degradation rules of products and optimized preparation method of materials.

The invention relates to an in-situ high-frequency fatigue material mechanical test platform under a scanning electron microscope based on a stretching/compressing mode and belongs to the field of machinery and electronics. The test platform comprises a precise loading unit, a precise motion conversion unit, a load/displacement signal acquisition and control unit, a high-frequency driving unit and a test piece clamping and connecting unit. The test platform provided by the invention has the advantages that the structure is compact, the test precision is high, the strain rate and the test frequency are controllable, an in-situ high-frequency test based on the stretching/compressing mode can be performed on a three-dimensional test piece aiming at centimeter-scale or above in characteristicdimension under the condition of observation of various imaging instruments, the on-line monitoring can be carried out on the microcosmic deformation, damage and breaking process of a material under a fatigue stress, and a novel test method for revealing microcosmic deformation behaviors and a damage system of the material is provided.

The invention relates to a cross-scale micro nanometer grade in-situ composite load mechanical property testing platform, belonging to electromechanics. The cross-scale micro nanometer grade in-situ composite load mechanical property testing platform is composed of a precision drive and transmission unit, a signal detection and control unit and a clamping, connecting and supporting unit, wherein,in the precision drive and transmission unit, a DC servo motor provides power output, and a two-stage worm and gear mechanism with large reduction ratio and a precision ball screw mechanism transmit power; the signal detection and control unit is composed of a precision displacement sensor, a precision pull pressure sensor and a coder in coaxial rigid connection with the DC servo motor; and the clamping, connecting and supporting unit comprises a clamper component for locating and mounting a standard test specimen, and the like. The cross-scale micro nanometer grade in-situ composite load mechanical property testing platform can be compatible with imaging instruments, and performs a cross-scale in-situ micro nanometer composite load test on a macroscopic test specimen through observation via the imaging instruments, so as to perform in-situ monitoring on processes of microscopic deformation, injury and fracture of materials, so that a new testing method for revealing the mechanical properties and the injury mechanism of the materials at the micro nanometer grade is provided.

The invention relates to a steering engine tester and a testing method thereof, which belong to the technical field of guided bombs. The tester comprises a control cabinet and a simulation load table, wherein the control cabinet comprises a steering engine controller, a regulated power supply, an industrial control computer, a display, a keyboard and a main power supply switch; the simulation load table comprises a photoelectric encoder, a torque sensor and a magnetic powder brake; a steering engine shaft of a steering engine to be tested is mechanically connected with a rotating shaft of the photoelectric encoder through a shaft coupling; the steering engine to be tested is in digital signal communication with the steering engine controller through a data line; and steering engine testing software is installed in the industrial control computer. The tester provided by the invention has the advantages of more plentiful testing contents, more complete testing equipment, more intelligent testing software, prompting of operating information on a software interface, shielding of keys which are required to be operated, change of parameter input items according to selected testing items, information prompt for improper operation, and great reduction in the probability of error operation.

The invention relates to an in-situ nano-indentation tester based on an adjustable stretching-bending preload, and belongs to the field of electromechanical precision scientific instruments. The in-situ nano-indentation tester comprises an in-situ nano-indentation testing module, a stretching preload loading module and a bending preload loading module, wherein the in-situ nano-indentation testing module consists of a precision displacement/force loading unit and a load/displacement signal detection unit; the stretching preload loading module consists of a precision driving unit A, a precision transmission unit A, a load/displacement signal detection and control unit A and a clamping unit A; the bending preload loading module consists of a precision driving unit B, a precision transmission unit B, and a load/displacement signal detection and control unit B. The in-situ nano-indentation tester has the advantages of small size, compact structure and high testing precision; supplied test contents are rich; the deformation/displacement/load rate can be controlled; the in-situ nano-indentation tester can be arranged on carrying platforms of various main-stream electronic microscopic vacuum cavities and is compatible with imaging equipment; the application range is wide.

The invention relates to a cross-scale micro-nano in-situ three-point bending mechanical performance testing platform which belongs to the field of in-situ mechanical performance testing and structurally comprises a precise drive unit, a transmission and execution unit, a signal control and detection unit and a connection and support unit, wherein a brushless direct-current servo motor is connected with a primary worm, connected with a secondary worm shaft through a primary worm gear drive pair, respectively connected with precise ball screws I and II through a secondary worm gear drive pair,and further connected with a hammer head. The cross-scale micro-nano in-situ three-point bending mechanical performance testing platform has the advantages of small volume, light weight, high rigidity, compact structure and high test precision, can provide plentiful test contents, and can be mutually compatible with carrier platforms of various electronic microscope vacuum cavities.

The invention discloses a test platform for combination properties of axial pulling and pressing, bending, torsion and vibration of a composite material. The test platform comprises a pulling and pressing unit, a bending unit, a torsion unit and a vibrating unit; a fixed end of a clamping device is fixed on a workbench; the test platform integrates the static test of three single loads of pullingand pressing, bending and torsion with the static test of multi-load compound loading and is capable of realizing rotation under any combined states of pulling and pressing, bending and torsion so asto perform vibration test; a load space coupling model with combined load is established by simulating different work stations in practical production; an effective test platform is supplied for researching the influences of various loads on the material performances and the change rule of other performance parameters; the research on the deformation damage mechanism of the material under practical complex conditions can be boosted to some extent; the problems of complex operation, poor compatibility, and the like, of the prior art can be solved; the test platform has the characteristics of simple operation, high integration level, compact structure, various test modes, capability of supplying abundant test content, and the like.

The invention discloses an axial and radial combined loading bearing test device. The axial and radial combined loading bearing test device comprises a motor, a motor stand, a main shaft, a supporting bearing, a bearing seat of the supporting bearing, a testing bearing, a loading bearing used for loading axial and radial force, a spring device used for loading radial force, and a spring device used for loading axial force. The loading bearing is arranged on the outer side of the testing bearing and the outer side of the supporting bearing, the bottom of a bearing sleeve of the loading bearing is connected with the spring device used for loading the radial force, and the spring device used for loading the radial force is arranged in the vertical direction. Axial loading rods are arranged on two sides of the middle of a bearing sleeve of the testing bearing and used for being connected with one end of a loading rope. The loading rope is wound around two fixed pulleys, and the other end of the loading rope is connected with the spring device used for loading the axial force. The axial and radial combined loading bearing test device is simple in structure, convenient to dismantle and install and easy to process and manufacture.

The invention discloses an SDH (Synchronous Digital Hierarchy) multi-domain comprehensive test device and a test method thereof, mainly solving the problem that single test equipment tests the network performance of an ATM (Asynchronous Transfer Mode) network transmitting in an SDH mode or an IP (Internet Protocol) packet network packed by adopting an HDLC (High level Data Link Control) protocol.The SDH multi-domain comprehensive test device mainly comprises a test data processor, an SDH processor and a microcomputer control system. The test method comprises the following steps of: (1) initializing the working mode of the SDH multi-domain comprehensive test device; (2) generating test information cells or packets of the corresponding working mode by the test data processor, mapping into an SDH frame and sending to a tested network element by the SDH processor; (3) extracting the test information cells or the packets from the loopback SDH frame by the SDH processor; (4) processing thereceived test information cells or packets by the test data processor; and (5) analyzing and displaying a test result by the microcomputer control system. The invention can not only test a single-mode or multi-mode multi-rate SDH network, but also realize that the single equipment tests the network performance of the ATM network and the packet network, and has easy and convenient operation and high cost performance.

The invention relates to the field of device testing based on a digital image, in particular to an intelligent testing robot based on a digital image. The robot comprises a case recording module, a motion control module and an image recognition module. The case recording module is used for recording a testing case, and the testing case includes an operational motion carried out on a device to be tested and an expected display screen state generated by the operational motion on the device to be tested. The motion control module is used for operating the device to be tested according to the operational motion recorded by the case recording module. The image recognition module is used for comparing a display screen state generated after the device to be detected is operated with the expected display screen state recorded by the case recording module to judge whether the testing case is successfully executed or not. Because manual operation is replaced by the robot, the degree of automation is greatly improved; besides, compared with manual testing, machine operation is more accurate, and the robot is more suitable for repeated pressure testing and batch testing.

Disclosed is a virtual experimental platform of an unmanned underwater vehicle mission planning system and an experimental method. The experimental platform comprises a virtual experimental scene display terminal, a virtual experimental user operating terminal, a desktop type work station, a principle computer control module and an unmanned underwater vehicle simulation module; the desktop type work station comprises a peripheral component interconnect express (PCI Express) high-performance graph acceleration processing card, a PCI Express disk array card, and a plurality of PCI Express data acceleration processing cards; the principle computer control module is integrated and operates in the desktop type work station, and the unmanned underwater simulation system module is integrated and operates in the PCI Express data acceleration processing card in the desktop type work station. The experimental method includes experimental methods of 'full digital virtual experiment' and 'half material virtual experiment' on the basis of the virtual experimental platform. The virtual experimental platform of the unmanned underwater vehicle mission planning system and the experimental method have the advantages of simple structure, simple and convenient operation, high function integration, wide application range, high experimental efficiency, and the like.

The invention discloses a test device and method for researching friction characteristics between a tire and an actual pavement, and belongs to the technical field of detecting equipment. Actual working conditions of the tire with load running on different pavements are well simulated through mechanical structures such as a loading sleeve, a loading sleeve base, a rotary arm and a rack, the test device and method for researching friction characteristics between the tire and the actual pavement can be used for testing a friction factor between the tire and the pavement and researching wear pattern between the tire and the pavement, compression amount of a loading spring can be adjusted through a loading screw according to requirements, and thus a test load is adjusted; meanwhile tire running speed is adjusted through a transmission system; changing is conducted on a slip rotary rate or a slip shift rate between the tire and a pavement through adjusting a connected relation between a tested wheel and an auxiliary wheel, multiple kinds of running conditions of the tire on the pavement are simulated, data such as the load, a rotate speed and a torque are detected in real time through asensor, and thus the friction factor between the tested tire and the tested pavement is obtained by formula calculation.

The invention relates to an on-site testing platform for the micromechanical property of a material in a shearing-torsion loading combination mode, belonging to the field of precision scientific instruments. The on-site testing platform comprises a precision shearing loading driving unit, a precision torsion loading driving unit, a mechanics and deformation signal detection and a test piece clamping unit and the on-site testing platform can be used for respectively testing the micromechanical property of the material by single loading action of shearing or pure torsion, and can also be used for testing micromechanical property of the material in a shearing-torsion loading combination mode. The on-site testing platform has the advantages of multiple functions and compact and light structure, has the functions of driving, loading, detection and dynamic testing of multiple micro properties of the material, can be well compatible with main commercial instruments such as a scanning electronic microscope, an optical microscope (a metallurgical microscope), an X-ray diffractometer and the like, and can dynamically research the microstructure of the material and the relative rules of a deformation damage mechanism under different types of loading by combining the material property test representation instruments.

The invention provides a dynamic and static testing performance device of a proportion electromagnet. The dynamic and static testing performance device comprises a bottom board, a static performance testing mechanism, a dynamic performance testing mechanism, a first actuator support and a second actuator support, wherein the static performance testing mechanism, the dynamic performance testing mechanism, the first actuator support and the second actuator support are arranged on the bottom board, the to-be-tested proportion electromagnet is arranged on the first actuator support and the second actuator support, the static performance testing mechanism is used for testing the static performance of the to-be-tested proportion electromagnet, and the dynamic performance electromagnet is used for testing the dynamic performance of the to-be-tested proportion electromagnet. According to the dynamic and static testing performance device provided by the invention, not only can the static performance of the proportion electromagnet be tested, but also the dynamic performance of the proportion electromagnet can be tested, the testing content is comprehensive, and the accuracy, the efficiency and the automation degree of a testing process can be greatly increased by combining devices such as an industrial personal computer and a multifunctional data collection card.

The invention belongs to the technical field of medical instruments, aims to solve the problem that an existing vision test method is inconvenient and has a complex process and provides a vision test method. The method includes storing vision test questions in a storage unit; reading the vision test questions by a reading unit; displaying the vision test questions by a display unit; allowing a testee to answer the vision test questions through a user input unit; allowing a receiving unit to receive the testee's answers and send these answers to a processing unit; allowing the processing unit to process the testee's answers to obtain vision test results, and transmitting the vision test results to a display unit for displaying; allowing the processing unit to send the testee's answers to a data server which stores the testee's answers. The vision test method has few steps, the testee can finish a vision test alone, and using is very convenient.

The invention discloses a device and method for testing PCBA (Printed Circuit Board Assembly) of a smart watch, and the device comprises a testing frame (1), the testing frame (1) is provided with a testing jig, the testing jig comprises a top plate (2) and a bottom plate (13), the bottom plate (13) is fixedly disposed on the testing frame (1), the testing frame (1) is internally provided with an installation cavity, the installation cavity is covered by the bottom plate (13), the installation cavity is internally provided with a PCB (3), the PCB (3) is provided with an ejector pin (17), a test bottom plate power supply switch, a test bottom plate battery charging switch, a main control chip (16), a communication interface (5), a serial port (8), a voltage detection interface (11), a firmware burning interface (10), an I2C expansion interface (6) and a switch interface (7). The device is easy to operate and high in efficiency.

The embodiment of the invention provides an application testing method and equipment. The application testing method provided by the embodiment of the invention comprises the following steps that: testing equipment obtains the code of an application to be tested; the testing equipment sends the code of the application to be tested to a tested terminal; the code of the application to be tested is used for installing the application to be tested in the tested terminal; the testing equipment receives an operation instruction sent from a control terminal and sends the operation instruction to the tested terminal to enable each tested terminal to operate the application to be tested; the testing equipment receives the operation information, which is sent from the tested terminal, of the application to be tested, wherein the operation information comprises information obtained in a process that each tested terminal operates the application to be tested; and the testing equipment tests the application to be tested according to the operation information to obtain a testing result. By use of the embodiment of the invention, the testing efficiency of the application can be improved.

The invention discloses an industrial robot electrical connector surface abrasion detection method and device. At present, 70% of failures of electronic and electrical equipment are caused by failuresof electronic components, wherein 40% of the failures are caused by failures of electrical connectors. According to the method, a reliability acceleration test is adopted, the surface of the connector is detected by changing the working temperature, the plugging speed, the plugging offset and the offset angle, the surface abrasion condition of the connector is observed, the roughness values of the connector under different working conditions can be conveniently estimated through a roughness calculation formula, and the reliability of the connector is improved, and then the change of the electrical performance of the connector under different working conditions can be seen by matching the plugging force. Besides, the surface of the connector is cleaned through a self-made cleaning device,so that the service life of the connector is prolonged. The test bench has the characteristics of rich test content, accurate test result, simple structure, convenient installation, simple and understandable operation and the like.

The invention provides a cross dual-pull representation heating test platform and method. The cross dual-pull representation heating test platform comprises an induction heating temperature control system, a stretching control system and a strain measurement system, wherein the induction heating temperature control system comprises a metal plate, an induction coil, a temperature sensor and an induction heating power supply, an adjustable induction heating power supply is connected with the induction coil, the induction coil is arranged in parallel at one side of the metal plate, the metal plate is heated by an effect of the induction coil to provide a hot environment, the metal plate is arranged in parallel at an upper side of a bidirectional cross stretching device, and the temperature reaches a set value by adjusting a current value of the induction coil. By the cross dual-pull representation heating test platform, the mechanical property and the formation performance of the materialof a test plate under equal dual-stretching and under different loading proportions at a high temperature can be accurately tested.

The invention discloses a protection device of electrical equipment, belonging to the field of remote monitoring and controlling of electrical equipment. The protection device comprises the electrical equipment, a digital tester, a thermal protector, a circuit protector, a soft starter, a stop device, a signal processor, a region protocol converter and a protocol converter, wherein the digital tester, the thermal protector, the circuit protector, the soft starter and the stop device are installed on the electrical equipment; the signal processor is installed out of the electric equipment; the signal processor is respectively connected with the digital tester, the circuit protector, the soft starter and the stop device through lead wires; a first wireless signal transmitting and receiving device is installed on the signal processor; a second wireless signal transmitting and receiving device is installed on the region protocol converter; a third wireless signal transmitting and receiving device is installed on the protocol converter; and the protocol converter and a remote control console are connected. The protection device has the beneficial effects that the electrical equipment can be monitored and controlled remotely, manual field operation is not required, the labor intensity of daily overhauling is reduced, hazard can be convenient to be found in advance, and the reliability of the device is improved; and the test content is comprehensive and the like.