12results about How to "Add test function" patented technology

The invention provides a mechanical in-situ test experimental device with a multi-working-condition simulation coupling effect, and belongs to the field of mechanical testing. The problems that an existing mechanical property testing device can only simulate single environment characteristics and cannot test various mechanical properties are solved. Wherein the linear sliding table is connected with the mobile platform through the mounting bracket, the upper end of the connecting rod is fixedly connected to the mobile platform, and the lower end is positioned in the box body; any one of one of the stretching and fatigue experiment clamp, the bearing platform and the bending pressing table can be mounted on a bottom plate of the box body, and any one of the other stretching and fatigue experiment clamp, the compression pressing head, the hardness measuring head, the bending pressing head and the impact testing head assembly can be mounted at the lower end of the connecting rod; the environment simulation assembly can simulate the temperature, humidity and salt mist environment of actual working conditions in the box body; the in-situ monitoring assembly can be used for monitoring the to-be-tested sample in the box body in real time. The device can simultaneously simulate a plurality of actual working conditions and coupling working conditions of actual loads, and can complete a plurality of mechanical property tests.

The present application discloses a kind of heavy die test press machines, including body frame, main oil cylinder, body frame is made of lower crossbeam, column and upper crossbeam.Key features include slider, lifting cylinder, motor, friction stopper and moving platform.Slider includes rotary slider, pressurized slider and side slider, wherein pressurized slider is installed in frame by guide rail, connected with main oil cylinder.Side slider moves up and down through guide assembly and guide rail, and double-side lifting cylinder drives its action.Rotary slider connects two side sliders through rotary shaft, and motor is installed on side slider, rotary motion is realized through driving gear and rotary gear.Moving platform is installed on lower crossbeam, used for installing lower die.Through innovative double-side synchronous drive and gear set driving, the test press machine improves system stability, rotary load capacity and test function, and provides significant technical advantage for large, heavy die test requirements.

The invention discloses an IPX9K test device capable of continuous multiple tests and a water circulation control system, the IPX9K test device comprises a cabinet body, a 1 / 4 arc-shaped water spraying support is arranged above the cabinet body, and the arc-shaped water spraying support is provided with nozzles at 0-degree, 30-degree, 60-degree and 90-degree positions; a controller is installed above the right side of the cabinet body, a sample supporting disc is arranged in the middle of the upper portion of the cabinet body, a water drainage hole is fixedly formed in the left side of the top of the cabinet body, a rapid heating box is installed on the left side of the interior of the cabinet body, and a water pipe is arranged in the rapid heating box; a test water tank is installed on the right side in the cabinet body. The IPX9K test device and the water circulation control system which are provided by the invention have the advantages that the requirements of continuous multiple tests can be met, the detection efficiency and the accuracy of a detection result are improved, the test water consumption is greatly saved, and the test requirements of high-temperature water and low-temperature water can be met at the same time.

The application discloses a switching device of a phased array antenna testing system and a testing method, relates to the field of phased array antenna testing of satellite communication, and discloses the switching device, which comprises a communication interface, a signal processing assembly and a darkroom testing system. The communication interface is configured with a communication protocol, the darkroom testing system and the phased array antenna follow the communication protocol, and the communication connection between the darkroom testing system and the phased array antenna system is realized through the communication interface. The signal processing assembly stores a testing file for testing the phased array antenna, controls the operation state of the darkroom testing system and switches the working state of the phased array antenna according to the testing file. Meanwhile, the probe of the darkroom testing system is controlled to collect the radio frequency signals of the phased array antenna under different working states according to the switched working state of the phased array antenna, the radio frequency signals are analyzed, and testing data are obtained. The application does not need to stop the work of the two-part system, reduces the testing waiting time, and further improves the testing efficiency.

The invention relates to a non-road motor controller test system and test method. The device comprises a mounting tool, the mounting tool comprises a power measuring servo motor and a torque sensor connected with the driving end of the power measuring servo motor, and the torque sensor is connected to the driving end of a measured motor and used for obtaining torque and rotating speed data; the tested motor controller is connected with the tested motor and is used for outputting three-phase electricity to control the tested motor to operate; the three-phase power grid is used for providing three-phase power; the dynamometer frequency converter is respectively connected with the three-phase power grid and the dynamometer servo motor; the feed module is respectively connected with the three-phase power grid and the dynamometer frequency converter; the direct-current power supply is respectively connected with the three-phase power grid and the tested motor controller; and the upper computer master control system is respectively connected with the dynamometer frequency converter, the torque sensor, the tested motor controller and the direct current power supply. The problems that power consumption is large, torque loading accuracy is not high, reverse dragging testing cannot be carried out, and center adjustment is complex when a tested sample piece is replaced are solved.

The invention relates to the technical field of dynamic and static balance testing devices, in particular to a rake tooth dynamic and static balance testing device of a rake dryer. Comprising a rake shaft, a rack and a plurality of groups of rake teeth mounted on the rake shaft, and further comprises two symmetrically arranged clamping transmission modules, a transmission seam for driving the rake shaft is arranged between the two clamping transmission modules, a transmission motor for driving the clamping transmission modules to work is mounted on the rack, and two movement measuring pieces perpendicularly arranged at 90 degrees are mounted on the rack. The moving part is used for testing the radial run-out of the rake shaft, and the two linear driving modules are in transmission connection with testing frames. The device has the advantages that when the device works, the dynamic and static balance test operation of the rake teeth of the rake dryer can be automatically completed, and when the device is used for testing, the dynamic balance weight of the rake teeth and the balance test after the dynamic balance weight can be realized, so that the testing function and the testing precision of the device are effectively improved.

The application discloses a rock variable-angle tensile shear, compressive shear and variable-angle triaxial test device capable of adding confining pressure, which comprises a counterforce frame, a hydraulic loading system, a variable-angle shear test module and a variable-angle triaxial test module arranged on the counterforce frame, and can be used for rock sample variable-angle compressive shear test under a condition without lateral confining pressure, rock sample variable-angle tensile shear test under a condition without lateral confining pressure, rock sample variable-angle shear test under a condition with lateral confining pressure, cubic rock sample variable-angle triaxial test, and small-scale rock mass "first loading and then excavation" stress path simulation test under a true triaxial stress condition. The loading structure of the testing machine is simplified, the number of loading oil cylinders is reduced, the simplicity of multiple tests is enhanced, multiple functions can be effectively integrated, and one machine can be used for multiple purposes.

The invention discloses a test device of a permanent magnet linear motor. The test device comprises a stator test bench and a rotor test bench. The stator test bench comprises a base, a screw rod lifter, a linear guide rail, a sensor mounting rack and a coil mounting rack; the lead screw lifting machine and the linear guide rail are both installed above the base, the sensor installation frame is installed above the linear guide rail in a sliding mode, the sensor installation frame is in transmission connection with the lead screw lifting machine, the coil installation frame is installed above the sensor installation frame, and a stator coil is installed on the coil installation frame; the mover test bench comprises a mover fixing support, a rotating platform and a mover test wheel seat which are sequentially installed from bottom to top, the mover test wheel seat and the stator coil are arranged at preset intervals, and a plurality of magnets are continuously laid on the arc surface of the mover test wheel seat. The linear motion of the permanent magnet linear motor can be simulated, the gap between the rotor and the stator of the permanent magnet linear motor can be adjusted, and the occupied space is small.

The utility model discloses a device for testing the friction force between a piston rod and a guider of a shock absorber, which comprises a shock absorber cylinder barrel, a piston assembly, a guider, a floating piston, a fixed barrel, a connecting nut and a data acquisition system, and is characterized in that the shock absorber cylinder barrel is used for storing a liquid medium and simulating the internal environment of the shock absorber; the piston assembly comprises a piston rod and can reciprocate along the shock absorber cylinder barrel, the guiders are fixed to the two ends of the shock absorber cylinder barrel to guide and seal the piston rod, the floating piston adjusts the pressure in the shock absorber cylinder barrel through the inflation system, the fixed barrel is matched with the movement range of the piston rod, and the connecting nut is used for being connected with external testing equipment. The data acquisition system monitors displacement, speed and damping force parameters in real time, interference of other parts in the shock absorber is isolated through modular design, and independent testing of a piston rod and a guider friction pair is achieved. The shock absorber cylinder simulates the real working condition, the pressure environment can be dynamically adjusted through combination of the floating piston and the inflation system, and the problem that an existing pressure condition is single is solved.

The invention relates to the technical field of bearing testing, in particular to a bearing life limit load test board which comprises a test board body and a mounting seat fixed to one side of the test board body, a double-shaft motor is fixedly mounted on the outer surface of the mounting seat, and a clamping structure connected with the double-shaft motor is arranged on the side, close to the test board body, of the mounting seat. A centrifugal lifting structure, an extrusion structure and water spraying equipment are arranged outside the mounting seat; and the centrifugal lifting structure comprises a rotating shaft, a swinging seat, a sliding sleeve, a rotating sleeve, a swinging arm, a connecting rod and a ball body. According to the invention, a conventional rotation test can be carried out on the bearing, the load condition in actual use is simulated through the design of the centrifugal force and the swing arm, so that the test is closer to the real working condition, the test function in a humid environment is increased, and the test efficiency is improved through the pump body, the communicating pipe and the spray pipe system. And the wear resistance, the waterproof performance and the like of the bearing in a wet or humid environment can be tested, so that the test result is more comprehensive and accurate.

The invention discloses a distributed file system, a unit testing method and device thereof and a medium, relates to the technical field of unit testing, is used for performing unit testing, and provides a unit testing method based on the distributed file system aiming at the problems that a traditional unit testing scheme cannot cover multiple threads or concurrent scenes and the like. And mounting unit testers for performing unit testing in a plurality of clients of the distributed file system. On the basis, the main thread can simulate the concurrent requests of the multiple clients through the unit testers in the multiple clients, the unit testing efficiency can be improved, unit testing in a multi-client interaction scene in a distributed file system is achieved, the testing scene of unit testing is widened, and the testing efficiency of unit testing is improved. And concurrency related problems such as concurrency performance problems, race conditions, deadlocks and the like can be found.

The invention belongs to the technical field of high-frequency load boards, and particularly relates to a high-frequency load board suitable for a radio frequency integrated circuit testing machine and a fastening device of the high-frequency load board. Installing a plurality of blind matching A joints; in the blind matching A connector, a floating body is located in a connector shell, an elastic piece is installed between the floating body and the connector shell, a core body penetrates through the middle of the connector shell and the floating body, and a floating head is fixedly installed on the outer side of the core body. A columnar second cavity is formed in the middle of the side, away from the floating head, of the floating body. The initial length of the elastic piece is equal to the sum of the height of the second cavity and the designed floating stroke of the blind matching A connector. Compared with the prior art, the invention has the beneficial effects that a plurality of blind-match joints with the frequency up to 44GHz are designed on the load board, and the test frequency, the test channel and the test function of the load board are provided; the floating stroke of the blind matching connector is designed, the whole load board moves downwards synchronously when the fastening device is matched for fastening, multi-channel accurate butt joint is achieved, and the testing efficiency and the testing speed of the radio frequency integrated circuit in batch and high-frequency testing are improved.