38results about How to "Efficient test method" patented technology

The invention relates to a high temperature and high pressure coal and rock true triaxial fracturing and seepage test device and a test method, and belongs to the technical field of rock mechanics and engineering. The device is characterized by comprising a true triaxial servo control real-time loading system 1, a hydraulic fracturing system 2, a supercritical CO2 fracturing system 3, a seepage system 4, a circulating cooling system 5, a temperature loading and keeping control system 6, an acoustic emission monitoring system 7, a pressure-deformation test system 8 and a data acquisition and automation control system 9. The buried conditions of real stratum can be simulated, and a specimen 19 is heated at high temperatures to simulate the depth stratum temperature environment; a fracturing test is conducted by high pressure water power or supercritical CO2; by injecting high pressure pore water or gas, a coal rock permeability test is conducted and the fracturing effect is tested; the fracture initiation, propagation and opening and closing properties of cracks generated by fracturing are monitored by the acoustic emission monitoring system 7 in the whole process, and the mechanism of formation and propagation of the cracks is mastered by observation and analysis, so that the theoretical basis and experimental basis is provided for fracturing exploitation.

The invention discloses a low-voltage power line carrier communication interconnection performance testing method, and the method comprises the steps: verifying the consistency of communication languages and interaction flows of to-be-verified equipment and standard equipment, and determining the protocol consistency of the to-be-verified equipment; verifying whether the transmitting and receiving performances of the to-be-verified equipment meet the standard demands or not, and determining the communication performances; verifying the compatibility of the to-be-verified equipment with the standard equipment in a simulation environment, determining the interoperability, and judging the low-voltage power line carrier communication interconnection performances according to the protocol consistency, communication performance and interoperability. The beneficial effects of the invention lie in that the method provided by the invention is a high-efficiency testing method for the verification of the consistency of a to-be-verified equipment communication mechanism; the method is a quantitative and efficient testing method for the communication performances of the to-be-verified equipment; and the method is an efficient testing method for verifying the business supporting effectiveness of the to-be-verified equipment for an electric energy collection system.

The invention discloses a device and a method used for testing the flame height of lithium battery combustion. The device comprises a test box, a heating device, a camera and a smoke evacuating device. An air inlet is arranged in a corner at the bottom of the test box. An air outlet is arranged in a corner at the top of the test box. Anemometers are arranged at the air inlet and the air outlet. The camera is arranged outside a test room and a lens faces a lithium battery. A gas collecting cover of the smoke evacuating device is arranged in the test box and faces the lithium battery. During combustion, the lithium battery is arranged on the heater. After the combustion is finished, an air extracting pump is opened to evacuate smoke. A combustion video of the lithium battery is converted into an image and the image is subjected to image processing by the Matlab software. Thus, the flame height of the lithium battery combustion is obtained.

The invention discloses a device for measuring creep deformation of eddy current. The device comprises an eddy current displacement sensor device and a bracket, wherein the eddy current sensor device comprises a data acquisition display, a sensor extension cable, a sensor probe and a sensor probe fixing screw; the bracket comprises a sensor probe bracket and a target board bracket; two longitudinal and transverse reinforcing plates are arranged in each bracket; two bolt holes for fixing the brackets are formed; a sensor probe mounting hole is formed in the upper end of a sensor bracket board; the sensor probe bracket and the target board bracket are provided with a sensor bracket fixing bolt and a target bracket fixing bolt; each bolt is provided with a bolt washer. The device can be used for testing data accurately, efficiently and conveniently, and is convenient and rapid for mounting.

The invention provides a method for testing correctness of device model simulation results. The method comprises the following steps of: generating a circuit simulation netlist on the basis of a device model and a test demand; respectively carrying out simulation by adoption of comparative simulation software and to-be-tested simulation software on the basis of the circuit simulation netlist; and generating a simulation test result on the basis of the simulation result. The method for testing correctness of device model simulation results is an efficient and visual test method; according to the method, a most basic device model building circuit is simulated; and the method is compared with a gold analysis tool to generate a result report which is easy to check, so that simulation software engineers are helped to rapidly and conveniently check the result of supporting the device model by the simulation software so as to save the debugging cost, and circuit design engineers of design companies are helped to rapidly assess whether the support, for the device model, of new simulation software is consistent with the support, for the device model, of the existing simulation software or not so as to save the assessment cost.

The invention relates to the technical field of Internet of Vehicles, and particularly discloses a method for testing roadside unit function application in a vehicle-road coordination system, which comprises the following steps: calling test case data according to a test control instruction of control equipment, the test case data comprising auxiliary test vehicle motion trail parameters, vehicledynamics model parameters and Internet of Vehicles function application information; sending the test case data to a tested road side unit function application platform; receiving feedback informationobtained by the tested road side unit function application platform according to the test case data; analyzing and processing the feedback information to obtain an analysis result; and sending the analysis result to control equipment. The invention further discloses a device and a system for testing the function application of the road side unit in the vehicle-road cooperation system. The methodfor testing the roadside unit function application in the vehicle-road cooperative system provided by the invention has the advantages of real test data, safety and high efficiency.

The invention discloses a biomedical hydrogel coating layer with a 'sandwich' structure and a preparation method of the biomedical hydrogel coating layer. The preparation method comprises the following steps: firstly cleaning and drying a to-be-modified base material; putting the processed base material into a buffer solution, adding dopamine into the solution, and reacting at 10-30 DEG C for 0.5-4 hours; sequentially putting the reacted base material into a polypositive electrolyte solution, a polyphenol compound solution and a polynegative electrolyte solution for reaction, so as to finish areaction cycle; and finally, repeatedly carrying out the reaction cycle for 10-200 times, so as to obtain a final product. By virtue of the preparation method, the biomedical hydrogel coating layer with excellent mechanical properties and low drug release speed can be prepared, and the technical problems that a film is poor in stability and over high in drug release speed can be effectively solved.

The invention discloses a testing device and application of an ultrahigh frequency sensor arrangement for a gas-insulated combined switchgear, which is characterized in that a partial discharge pulse current test platform is formed by a partial discharge-free voltage source, a coupling capacitor, a measuring impedance and a partial discharge instrument, a GIS model is arranged, the positive terminal of the partial discharge-free voltage source is connected to a metal conductor in the GIS model, and the negative terminal of the partial discharge-free voltage source is connected to the shell of the GIS model and is grounded; an artificial defect model is arranged in the GIS model, the GIS model is provided with a built-in ultrahigh frequency sensor and an external ultrahigh frequency sensor, and an oscilloscope is used to test output signals of the built-in ultrahigh frequency sensor and the external ultrahigh frequency sensor. The invention is used for testing before the installation of the ultrahigh frequency sensor and determining the best installation position, which provides the basis for GIS sensor arrangement.

The invention discloses an apparatus for testing the response speed of a sensor, and a test method thereof. The apparatus comprises at least a set of a test chamber, a gas inlet mechanism and a gas discharge mechanism, wherein a reference sensor and a sample holder are arranged in the test chamber, the position and the temperature of the sample holder can be adjusted, the gas inlet mechanism is arranged above the sample holder, and is sequentially communicated to a valve 2, a valve 1 and a spraying nozzle through a gas supply tank, and a gas guiding pipe orientation adjustment mechanism is positioned on a gas guiding pipe between the valve 2 and the valve 1 and is positioned inside the test chamber. According to the present invention, before the test, the position of the component and theopening degrees of each valve are determined by a software simulation device, all the test signals are connected, a background gas is introduced into the test chamber from a gas inlet hole channel, the test value of the sensor device is read, the relative position of the to-be-tested sensor and the spraying nozzle is adjusted, a to-be-tested target gas is sprayed, and the transient state responseof the to-be-tested sensor is tested; and the structure of the apparatus is simple, and the method is novel and efficient, and is not limited by the use environment.

The invention discloses a continuous organic fiber wear resistance tester, which is simple in structure, convenient to operate and high in test efficiency, can test the wear resistance of continuous organic fibers and different abrasives under the action of different friction speeds and different tensions, can change the test conditions such as friction distance, friction angle and grinding rollertype for testing. and can conduct a wear resistance test on the continuous organic fibers after twisting, so that the wear resistance of the organic fibers under the twisting condition can be more accurately represented. Not only can a disc do circular motion to drive a crank connecting rod so as to drive a sliding block to further drive a grinding roller to do reciprocating motion, but also theabrasion resistance is evaluated by utilizing the reciprocating motion times of the grinding roller in the sliding abrasion mode, the abrasion resistance can be evaluated by rolling the rotation turnsof the grinding roller in the abrasion mode, and the wear resistance of various organic fibers in the production process and practical application can be simulated and evaluated more comprehensivelyand efficiently by characterizing the tension, broadening, hairiness amount and the like of the organic fibers.

The invention discloses a GPRS communication based LIN bus automatic remote testing device and testing method. The automatic testing device comprises a remote control end with a short message sending and receiving module, wherein remote detection devices are connected to the remote control end; a display is arranged at the remote control end; each remote detection device comprises a GPRS communication module which is connected with an LIN bus communication module, and the LIN bus communication module is connected with an indication module and is connected with an LIN bus communication product to be tested through an LIN bus; the remote control end sends a mobile short message containing a testing command to each remote detection device; each remote detection device sends the testing command to the corresponding LIN bus communication product to be tested through the corresponding LIN bus communication module; each LIN bus communication module receives testing information which is sent back from the corresponding LIN bus communication product to be tested, and sends the testing information to the remote control end through the corresponding GPRS communication module. The testing device and testing method provided by the invention achieve remote testing, and have the advantages of higher convenience, less labor consumption, high convenience in operation, and high stability.

The invention discloses a test method for simulating real vehicle cold start emission test by using an engine pedestal, and belongs to the technical field of engines. According to the test method, the contribution of upgraded and optimized parts to emission can be quickly verified, and the test verification efficiency is greatly improved. The test method comprises the following steps that S1, the temperature of engine oil and the temperature of cooling liquid of an engine are reduced to the room temperature; S2, the engine is connected with emission direct extraction equipment and air-fuel ratio measurement equipment, and a cold start test is carried out; s3, after the engine is successfully started, the engine enters an idling working condition; and S4, after a period of time, the rotating speed and the torque are increased, the engine is preheated, data recording and analysis are conducted in the test process, and the emission performance of the current engine state can be judged through a test data curve. According to the test method, an efficient test method is provided for design, optimization and development of engine parts and CAE simulation verification, a new direction is provided for a national sixth engine bench emission development test, and the test method has a good application prospect.

The invention discloses a PCB test method and device, and relates to the technical field of metal-based printed circuit board manufacturing. The PCB test method is applied to equipment in which n flying probe test machines are connected in series, a test network is divided through a test host, a total test network is divided into m*n test subareas, the number of the test subareas corresponds to the number of total test axes, and each test axis is responsible for one test subarea; and when testing is carried out, along with advancing of a PCB, the testing axes of the flying probe test machinescorrespondingly carry out detection in different testing subareas, and when all the flying probe testing machines are passed, all the testing subareas are also tested so that testing of the PCB to betested is completed, and a whole test method is efficient and capable of carrying out continuous and automatic testing.

The invention provides a method for testing the microorganism inhibiting performance of a material. The method comprises the following steps: (1) selecting a marker; (2) adhering and sealing the marker and a to-be-tested material; (3) performing storage under the temperature and humidity suitable for microorganism growth; and (4) recording the size and number of bacterial plaques.

The invention relates to the technical field of medical detection methods, and provides a uric acid detection method and a uric acid detection device in order to meet requirements of a gout patient for rapid diagnosis and disease monitoring, especially for household rapid disease detection and monitoring. A test sample reacts with detection test paper till that color of the detection test paper ischanged; and an optical signal is converted into a digital signal, and an obtained detection result is stored and displayed. The test method and device can be used to rapidly and simply determine a uric acid index, and help a patient to track and detect an illness state anytime and anywhere.

The present invention relates to the technical field of Internet of Vehicles, and specifically discloses a method for testing the functional application of roadside units in a vehicle-road coordination system, which includes: calling test case data according to a test control instruction of a control device, wherein the test case data includes auxiliary Test vehicle motion trajectory parameters, vehicle dynamics model parameters and Internet of Vehicles function application information; send the test case data to the tested roadside unit functional application platform; receive the tested roadside unit functional application platform according to the test Using the feedback information obtained from the case data; analyzing and processing the feedback information to obtain an analysis result; sending the analysis result to the control device. The invention also discloses a testing device and system for the functional application of the roadside unit in the vehicle-road coordination system. The test data of the test method for the functional application of the roadside unit in the vehicle-road coordination system provided by the present invention is real, safe and efficient.

The invention discloses a device for testing the response speed of a sensor and a testing method thereof. The device includes at least one set of test chambers, an air intake mechanism and an exhaust mechanism. The test chamber is provided with a reference sensor and a sample holder, the position and temperature of the sample holder can be adjusted, and an air intake mechanism is arranged above the sample holder, which communicates with the valve 2, the valve 1 and the nozzle in sequence through the air supply tank , the airway azimuth adjustment mechanism is located on the airway between the valve 2 and the valve 1, and is located in the test cavity. Before the test, use the software simulation device to determine the position of the components and the opening of each valve; determine all the test signals of each important connection; pass the background gas into the test cavity from the air inlet channel, and read the test value of the sensor device; adjust the sensor to be tested Inject the test target gas into the relative position of the nozzle to test the transient response of the sensor to be tested. The device of the invention has simple structure, novel method, high efficiency and is not restricted by the use environment.

The invention discloses a low-voltage power line carrier communication interconnection performance testing method, and the method comprises the steps: verifying the consistency of communication languages and interaction flows of to-be-verified equipment and standard equipment, and determining the protocol consistency of the to-be-verified equipment; verifying whether the transmitting and receiving performances of the to-be-verified equipment meet the standard demands or not, and determining the communication performances; verifying the compatibility of the to-be-verified equipment with the standard equipment in a simulation environment, determining the interoperability, and judging the low-voltage power line carrier communication interconnection performances according to the protocol consistency, communication performance and interoperability. The beneficial effects of the invention lie in that the method provided by the invention is a high-efficiency testing method for the verification of the consistency of a to-be-verified equipment communication mechanism; the method is a quantitative and efficient testing method for the communication performances of the to-be-verified equipment; and the method is an efficient testing method for verifying the business supporting effectiveness of the to-be-verified equipment for an electric energy collection system.

The invention relates to a method for testing the leakage rate of an air seal of a fuel cell air compressor. The method comprises the steps that the rotating speed of the air compressor is divided from the idle rotating speed to the peak rotating speed into a speed vector N of 4-10 elements at equal intervals, and the flow of the air compressor is divided into a flow vector Q of 10-20 elements at equal intervals; the air compressor operates at a specified rotating speed V1, so that the inlet flow of the air compressor is Q1, and the equivalent flow of the air compressor in a reactor, the air outlet pressure of the air compressor, the leakage rates of the first-stage and second-stage supercharging ends and the total comprehensive leakage rate are measured; the measurement steps are repeated, electronic valves of a main air outlet mechanism are adjusted in sequence, so that the inlet flow of the air compressor is correspondingly Q2, Q3... QMAX, and data vectors are obtained; the measurement steps are repeated, and the rotating speed of the motor is sequentially adjusted to be V2, V3... VMAX to obtain a data matrix; and the data is processed to obtain a first-stage and second-stage air seal leakage rate and a comprehensive air seal leakage rate MAP graph related to the equivalent in-pile flow and the air outlet pressure of the air compressor.

The invention belongs to the technical field of support performance evaluation, and particularly discloses a method for evaluating the performance of a friction pendulum type shock insulation support for a bridge and a building. Comprising the following steps: obtaining initial design parameters of an evaluated friction pendulum type shock insulation support, and sequentially carrying out the following detection according to the initial design parameters: detecting the bearing capacity of the evaluated friction pendulum type shock insulation support, and detecting the performance of the evaluated friction pendulum type shock insulation support under the use condition, detecting the performance of the evaluated friction pendulum type shock insulation support in an earthquake state, detecting the performance stability of the evaluated friction pendulum type shock insulation support under long-stroke abrasion, and judging whether the performance of the friction pendulum type shock insulation support meets a reference design value or not according to the detection result. According to the method, the performance of the friction pendulum type shock insulation support can be evaluated quickly, comprehensively and accurately, so that the evaluation of the shock insulation performance of the evaluated sample is more comprehensive, and a scientific and reliable evaluation approach is provided for the application of the friction pendulum type shock insulation support in the fields of bridges and buildings.

The invention particularly relates to a calculation testing method based on the domestic Fit CPU multi-unit server. According to the method, calculation units are connected with a testing board through a high speed connector. The testing board is utilized to extract interface resources of the calculation units from the high speed connector, single board problem testing and location are conducted, the cost of fault removing and analyzing is greatly reduced for engineers in a factory, and a tester can conduct full-function test on the single board of the calculation units through a simple debugging device. The method can be used in the single board of the calculation units based on the domestic Fit / Loongson / SW CPU multi-unit server, and is complete, efficient and quick. The testing efficiency is greatly improved, and producibility of the factory stage is improved.

The invention discloses a high-power switch array testing device. The testing device comprises change-over switches, control circuits and indicator lamps arranged on the control circuits. The change-over switches are configured to be used for controlling the state switching of switch arrays; one end of each control circuit is connected with the change-over switch of the corresponding switch array,and the other end of each control circuit is communicated with each switch in the corresponding switch array, in order to complete the transmission of switch control signals in the switch arrays; andthe indicator lamps are configured to emit light when the control circuits successfully complete switch-on control on the corresponding switches. According to the invention, only the system cable needs to be disconnected, a switch array control box and a detection cable need to be independently connected, power-up control is carried out on the switch arrays, and the original system structure andworking mode are not changed. Whether the switch arrays break down or not is judged through on and off of the indicator lamp of the control box, switches in the switch arrays do not need to be manually detected one by one, and the testing method is simple, efficient and high in accuracy.

The invention aims to provide an anti-fogging performance detection test method for an automobile lamp in a long-period marine transportation mode. The marine transportation temperature and humidity environment is simulated through a temperature and humidity box to simulate the KD outlet vehicle lamp marine transportation process, then the peripheral conditions of a whole automobile is simulated through double temperature bins, and finally the automobile lamp fogging working condition when a user uses the whole automobile is simulated; the anti-fogging performance of the automobile lamp can beeffectively detected, evaluated, judged and improved; the test method is convenient, efficient and low in cost.

A prefabricated concrete member superposed surface roughness measuring device comprises a rack, a scanning unit, a stepping motor, an information acquisition module and a power supply and controller module, and a circular level is arranged at the top of the rack and used for reflecting whether the rack is horizontally placed or not; a stepping motor, an information acquisition module and a power supply and controller module are distributed on the periphery in the rack, a scanning unit is arranged in a cavity in the rack, two guide grooves with the same height are distributed in the two sides, perpendicular to the scanning unit, of the rack, and limiting stoppers are arranged at the two ends of each guide groove respectively. The stepping motor drives the scanning unit to move in parallel in the direction of the guide groove. The invention further provides a detection method. According to the device and the method, the roughness of the superposed surface of the prefabricated part is measured after the prefabricated part is produced, and a plurality of control indexes are calculated, so that the device and the method for rapidly and accurately measuring whether the roughness of the superposed surface of the prefabricated part meets the requirement are provided.

The invention provides a method for testing dielectric properties of a ceramic material and application of the method. The testing method comprises sample preparation and detection, and the sample preparation comprises the following steps: mixing a ceramic material with a dispersion liquid and polytetrafluoroethylene, and sequentially carrying out dehydration, calendaring molding, glue discharging and sintering to obtain a to-be-tested sample; wherein the dispersion liquid is an aqueous solution of a flocculating agent. The test method provided by the invention can accurately determine the dielectric property of the ceramic material filled in polytetrafluoroethylene, can be benchmarked with the dielectric property of a dielectric product produced by taking the ceramic material as a raw material, and can be used for evaluating the advantages and disadvantages of the dielectric property of pure ceramic powder or a composite material of the ceramic powder and the like. The test method provided by the invention is efficient, simple, convenient and stable, can quickly detect the dielectric property of the high-dielectric raw material under high frequency, and is suitable for experiment or production research and development environments with complex formula and more conditions.

A test device, comprising two plate-shaped pole plates arranged opposite to each other, two Nafion membranes are arranged between the two pole plates, carbon paper or carbon cloth is arranged between the pole plates and the Nafion membrane; the two pole plates are passed through wires Connect with electrochemical workstation or resistivity tester respectively. The present invention makes up for the gaps in the prior art, and realizes the effective separation of electronic conductivity and ion conductivity in electrodes and other electronic conductors. The test method is accurate, efficient, and widely applicable. The test materials include carbon materials, metal materials, and semiconductors. Materials and homogeneous, porous and other electronic conductors.

The invention discloses a fast charging pile simulation device and system for HIL testing. The device comprises a fast charging pile logic control module which is used for sequentially carrying out the physical connection state confirmation of a charging gun, the insulation detection of a high-voltage loop and the handshake state confirmation of a BMS controller of a vehicle after the insertion ofthe charging gun of a detected vehicle is detected, entering a charging stage after the parameter configuration is completed, and sending a charging notification, and a direct-current charging outputcontrol module which is used for controlling an HIL cabinet to simulate a charging pile to output charging voltage and current after receiving the charging notification. According to the invention, the automatic test of the fast charging function can be carried out through the HIL system, and a more efficient test method is provided.

The invention relates to the technical field of demolition blasting construction methods, in particular to a demolition blasting trial blasting method. The demolition blasting trial blasting method comprises the following steps of (1) selecting a component in a building to be detonated as a trial blasting component; (2) drilling a plurality of trial blasting holes not interfering with each other in the component and filling different quantities of explosives into the different trial blasting holes; (3) detonating the explosives in all the trial blasting holes, observing the detonated componentand selecting the explosive quantity of the trial blasting hole with the best trial blasting effect as the optimal explosive quantity; and (4) carrying out explosion design work on demolition blasting construction according to the optimal explosive quantity. The trial blasting method is simple and high in efficiency. The trial blasting workload is reduced. The more accurate blasting explosive quantity can be obtained. No burden is caused to the blasting safety management work. The demolition blasting trial blasting method has great promotional value.