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 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 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 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 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 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 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.