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172results about How to "Speed ​​up the testing process" patented technology

Test device of model for manufacturing rock masses containing interlayers and test method thereof

The invention discloses a test device of a model for manufacturing rock masses containing interlayers and a test method thereof. The test device of the model for manufacturing the rock masses containing interlayers comprises a semicircular angle device, an upper baffle, a lower baffle, a left side plate, a right side plate, a circular turntable, a core-drilling machine drill bit, a flat plate, a flat plate angle control rod, a fixed screw rod, a base plate, an interlayer model test piece, a U-shaped plate and a guide slot. The test method comprises the following test steps: arranging the rock masses according to an outline central line and fixing the rock masses; manufacturing interlayer materials and casting the model, fastening the test piece, drilling the core, replacing the core-drilling machine drill bit, changing the position of the test piece to drill repeatedly and cutting to obtain the test pieces with different height-diameter ratios or obtain the test pieces with different interlayer inclination angles; then carrying out mechanical test. The test device is simple in structure and suitable for manufacturing the test pieces with different interlayer thicknesses, inclination angles and height-diameter ratios; according to a core-drilling and cutting machining device, by making full use of the existing device, the influence on the mechanical properties of the test pieces caused by different conditions can be analyzed, coring of irregular rock samples taken in the site can be carried out directly, so that the test efficiency is improved and the test time is shortened.
Owner:CENT SOUTH UNIV

Predication method of complete characteristic curve of mixed-flow pump turbine

InactiveCN107191308AFull Characteristic Curve PredictionAccurate predictionHydro energy generationMachines/enginesOperating pointMixed flow
The invention discloses a predication method of the complete characteristic curve of a mixed-flow pump turbine. The predication method of the complete characteristic curve of the mixed-flow pump turbine comprises the steps that an internal characteristic analysis theory describing the flow complete characteristics and the moment complete characteristics are corrected through the feature of the actually measured pump turbine complete characteristic curve; statistics of unit parameters of feature operating points of the pump turbine complete characteristic curves of different specific speeds is conducted, the dominant function relationships between the unit parameter of each feature operating point and the optimal operating condition specific speed of the pump turbine and between the unit parameter of each feature operating point and the guide vane relative opening degree are established; and according to the dominant function relationships, the unit parameters of each feature operating point at different guide vane opening degrees are obtained, so that the undermined coefficient of the corrected internal characteristic analysis theory is determined, and a predicted complete characteristic curve of the pump turbine at any specific speed is obtained. The complete characteristic curve predicted by the adoption of the predication method is small in error, in this way, in a runner model simulation test, only a small number of feature working conditioner need to be tested, and the model test process is guided and accelerated.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

In-loop simulation method and platform for vehicle-road cooperative system

The invention relates to an in-loop simulation method for a vehicle-road cooperative system. The in-loop simulation method comprises the steps that a central service module obtains simulation environment data; the central service module transmits simulation environment data to the roadside control decision module; the roadside control decision module controls the infrastructure state and distributes the local simulation environment data and the roadside control instruction to the vehicle control module; the vehicle control module obtains fusion information; the vehicle control module obtains aplanned trajectory, controls the vehicle to track the planned trajectory, and obtains vehicle driving data after control is completed; the vehicle control module transmits the vehicle driving data tothe roadside control decision module; the roadside control decision module transmits the vehicle driving data to the central service module, and the central service module transmits the vehicle driving data to the simulation module; and the simulation module updates the simulation environment data. Compared with the prior art, an overall testing framework for the center, the road side and the vehicle-mounted part is constructed, and in-loop testing can be conducted on the whole vehicle-road cooperation system.
Owner:TONGJI UNIV

Gas-containing coal similar material and preparation method thereof

The invention discloses a gas-containing coal similar material and a preparation method thereof. The similar material is prepared by the preparation method comprising the following steps: selecting coal powder with certain particle size distribution and a sodium humate aqueous solution as raw materials, wherein the coal powder is used as an aggregate and the sodium humate aqueous solution is used as a cementing agent; weighing the coal powder with the certain particle size distribution, water and sodium humate strictly according to proportions, fully stirring uniformly, pouring the well mixed and stirred mixture into a steel mold, and performing pressure molding on the mixture by using a certain pressure under a press machine; and separating the mold, taking out a molded test piece, and drying at normal temperature or in a drying box. A physical mechanical parameter test shows that the volume weight and porosity of the similar material are equivalent to those of raw coals, the adsorptivity of the similar material is very close to that of the raw coals, and the similar material has the advantages of high uniaxial compressive strength, wide mechanical parameter variation range and the like, and also has the advantages of simple material manufacturing process, stable performance, low price, no toxic or side effect and the like.
Owner:SHANDONG UNIV +1

Carrier rocket ground high-power wireless power supply system based on electromagnetic resonance

InactiveCN111030314ARegardless of resonance frequencyIrrelevant coupling coefficientEfficient power electronics conversionCircuit arrangementsTransmitter coilAC - Alternating current
The invention discloses a carrier rocket ground high-power wireless power supply system based on electromagnetic resonance, which comprises a ground power supply converter, a transmitting coil, a receiving coil and an energy receiving processor. The ground power supply converter and the transmitting coil are respectively placed on a ground transmitting platform or an oscillating bar; the receivingcoil and the energy receiving processor are arranged on the rocket; the ground power supply converter converts alternating current into high-frequency alternating current and inputs the high-frequency alternating current into the transmitting coil, the receiving coil converts coupled magnetic field energy into high-frequency alternating current and inputs the high-frequency alternating current into the energy receiving processor, and the energy receiving processor processes the high-frequency alternating current and then outputs power supply voltage meeting rocket load power supply requirements. Non-contact and separation-free power supply of the carrier rocket in the ground test and launch process is achieved, existing unplugging and unplugging technologies can be replaced, automatic butt joint of rocket power supply is achieved, and the defects that unplugging and unplugging cables are complex in operation, high in difficulty, large in personnel and time consumption, high in degreeof dependence on auxiliary equipment and the like are overcome.
Owner:BEIJING INST OF ASTRONAUTICAL SYST ENG +1

Soil expanding multi-parameter test device capable of simulating soaking-air-drying cyclic action

A soil expanding multi-parameter test device capable of simulating the soaking-air-drying cyclic action comprises a water box as well as a water storage tank, a gas-water exchanger and a waste water tank which communicate with the water box, wherein the water box comprises a porous lantern ring arranged at the bottom of the water box and a lower permeable stone arranged in the porous lantern ring, an annular knife is arranged on the lower permeable stone, soil samples are arranged inside the annular knife, upper permeable stones are arranged on the soil samples, porous cover plates are arranged on the upper permeable stones, pressure transfer rods extending out of the porous cover plates penetrate through a winged box cover connected onto the water box, upper pressure plates are arranged at tops of the pressure transfer rods extending out of the porous cover plates, load sensors for testing expansion stress and displacement sensors for measuring expansion deformation are fixed at tops of the upper pressure plates and connected with a resistance strain gauge through cables respectively, and the resistance strain gauge is connected with a computer. With the adoption of the test device, dry-wet cycle operations and related expansion tests of the soil samples can be conducted in the water box directly, tedious manual operations are avoided, the test efficiency is improved, and errors caused by the manual operations are reduced.
Owner:CHINA THREE GORGES UNIV

Modularly-parallel, multi-machine and energy-saving reliability testing device for hydraulic pumps and hydraulic motors

The invention discloses a modularly-parallel, multi-machine and energy-saving reliability testing device for hydraulic pumps and hydraulic motors. The device is of a modular structure, and comprises a dynamic and power recovery system module A, at least one sample module, a loading system module C and a real-time monitoring system module D, wherein an oil inlet of a to-be-tested hydraulic pump of the dynamic and power recovery system module A is connected with an oil tank; an oil outlet of the to-be-tested hydraulic pump of the dynamic and power recovery system module A is connected with an oil inlet of a to-be-tested hydraulic motor in the first parallel sample module; an oil outlet of a to-be-tested hydraulic motor of the dynamic and power recovery system module A is connected with the oil tank; an oil inlet of the to-be-tested hydraulic motor of the dynamic and power recovery system module A is connected with a to-be-tested hydraulic pump in the last parallel sample module and the loading system module C; the to-be-tested hydraulic motor is driven by the to-be-tested hydraulic pump in the last parallel sample module. All component parts of the device are designed to be of a modular type, so that a system structure is simplified, and the device is convenient and flexible to install, and lower in space occupation; by repeatedly connecting the parallel sample modules in series, samples can be added for the reliability test of a hydraulic product with minimum cost.
Owner:YANSHAN UNIV

Semiconductor junction temperature test device and test method thereof

ActiveCN107300663AReduce risk of sheddingSmall junction temperature errorDiode testingJunction temperatureTester device
The invention provides a semiconductor junction temperature test device and a test method thereof, relates to the electronic device test field and especially relates to the semiconductor junction temperature test device and the test method thereof, and provides the semiconductor junction temperature test device and the test method thereof, which can directly measure the semiconductor junction temperature, are small in error of the measured junction temperature and can truly reflect real performance of a semiconductor diode. The test device comprises a diode mounting place and a constant current source, wherein the diode mounting place is connected with the constant current source. The test device also comprises a semiconductor characteristic tester. The semiconductor characteristic tester is connected in parallel to the two ends of the diode mounting place; and the diode mounting place is provided with a diode. The diode mounting place comprises an insulated base. The base is provided with a pair of clamp places; and wiring ends of the diode are clamped in the clamp places correspondingly. The semiconductor junction temperature test device and the test method thereof have the advantages of being capable of directly measuring the semiconductor junction temperature, being small in error of the measured junction temperature and being capable of truly reflecting the real performance of the semiconductor diode.
Owner:YANGZHOU YANGJIE ELECTRONIC TECH CO LTD

Method for measuring load threshold value of soil deformation state of railroad bed under static load

The invention relates to a method for measuring a load threshold value of a soil deformation state of a railroad bed under a static load. The method is characterized by comprising the following operating steps: building a filling model in a model case formed by rigid side walls and applying static loads in grade to the filling model by using a round rigid loading plate according to different proportionality coefficient lambda of the ultimate bearing capacity; measuring and calculating plastic deformation rates vi(t) of soil at different moments t in a loading process by using a displacement sensor, taking data points of the rates and fitting the data points according to a negative power function v(t)=At-alpha; and obtaining a power exponent alphai value corresponding to the load proportionality coefficient lambda, and fitting the power exponent alphai value to obtain an alpha-lambda curve according to a cubic polynomial, wherein taking loads piI=lambdaIsigmaf and piII=lambdaIIsigmaf corresponding to lambdaI and lambdaII of two curature maximum values of the alpha-lambda curve are adopted as the load threshold value of the soil deformation state. piI and piII can be used for providing test grounds for design and optimization of ballastless / ballast track beds of a high speed railway and a deformation state evaluation and regulation principal, respectively. The method has the characteristics of being relatively short in testing time and specific in criterion, and the obtained load threshold value is relatively accurate and reliable.
Owner:SOUTHWEST JIAOTONG UNIV

Electronic device and detection method for capacitive touch screen of electronic device

The invention discloses an electronic device and a detection method for a capacitive touch screen of the electronic device. The detection method includes the steps that reference data of the capacitive touch screen are stored in the electronic device; the capacitive touch screen is detected, and detection data are obtained; the detection data are compared with the reference data, the capacitive touch screen passes detection if the difference value between the detection data and the reference data does not exceed the difference value range, and the capacitive touch screen does not pass detection if the difference value between the detection data and the reference data exceeds the difference value range. The electronic device and the detection method overcome the defects that in the prior art, when the capacitive touch screen is assembled in a whole machine, problems can hardly be detected through traditional manual clicking and line drawing modes, whether problems happen to the capacitive touch screen or not can be detected even when the capacitive touch screen has been assembled on the electronic device, for example, whether the capacitive touch screen is damaged or nor and whether the capacitive touch screen is flexible or not, and the electronic device and the detection method have the advantages of being convenient to operate and high in work efficiency.
Owner:HUAQIN TECH CO LTD

Front-end test method and device, computer equipment and storage medium

The embodiment of the invention belongs to the field of research and development testing, and relates to a front-end test method and device, computer equipment and a storage medium. The method comprises the steps: receiving a testing instruction to generate a data request, wherein thedata request comprises a to-be-tested interface and an input parameter; reading a preset mock environment identifier according to the to-be-tested interface, and when the identifier is a first identifier, reading the mock environment address, wherein the mock environment is a preset server for storing interface simulation data, and a preset corresponding relationship is formed between the interface simulation data and the input parameters; sending the data request to the mock environment according to the mock environment address; and receiving interface simulation data corresponding to the input parameter returned by the mock environment in response to the data request. By presetting the interface simulation data corresponding to the input parameters and returning the corresponding interface simulation data according to the different input parameters, the real scene is simulated, the test effectiveness is improved, the front-end test can still be carried out when the rear-end server is abnormal, and the test process is accelerated.
Owner:PINGAN PUHUI ENTERPRISE MANAGEMENT CO LTD

Frozen soil upper limit change rule testing method

The invention discloses a frozen soil upper limit change rule testing method. A frozen soil upper limit change rule testing device comprises an outer tank body, an inner tank body, a data collection model and a system control and data collection computer, wherein the inner tank body is located at the inner part of the outer tank body; an outer tank cover and an inner tank cover are respectively arranged on the upper ends of the outer tank body and the inner tank body; a heating module and a refrigerating module are arranged in a position between the outer wall of the left side of the inner tank body and the inner wall of the outer tank body; the heating module and the refrigerating module are respectively communicated with the inner tank body. The invention relates to the technical field of geotechnical testing and measuring. A monitoring sensor buried in a soil sample can be used for monitoring the soil sample temperature change and a moisture migration situation during frozen soil freeze thawing, initial conditions and boundary conditions of a soil temperature conduction and moisture conduction differential equation can be determined according to measured data of the monitoring sensor, analytic solution can be solved according to a variable separation method, an upper limit position change rule can be obtained by combining temperature and moisture judgment criterion and substituting the analytic solution into an analytic solution formula, testing is controlled by a computer system, and a testing result is more accurate.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE
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