496 results about "Power test" patented technology

The ATP Heavy allows for specific battery types to be easily inserted on shelving that can be configured depending on the battery type and testing needs. In one embodiment these shelves are then manually or pneumatically controlled to safely engage the battery to a connecting plate for connectivity and full power testing. This allows an operator / test technician to safely change the batteries and begin testing without any requirement to disconnect and reconnect external devices and test equipment. Time savings and testing density are optimized in the platform.

The invention discloses a converter state monitoring method based on IGBT (Insulated Gate Bipolar Translator) loss, which relates to the technical field of power electronics, and comprises the following steps: S1, acquiring direct current side input voltage, direct current side input current, alternating current side output voltage and alternating current side output current of a converter, and calculating IGBT power loss and diode power loss; s2, constructing an IGBT module thermal network model, and calculating IGBT junction temperature and IGBT conduction voltage drop; s3, detecting the state of the IGBT by combining the three-phase current output by the AC side of the IGBT and the parameter value of the IGBT element, and carrying out VSC fault positioning; real-time state monitoring is carried out on the converter based on the change of IGBT power loss, power testing is carried out on the IGBT without damaging packaging and stopping, the aging state of the IGBT is monitored by utilizing electrical parameters before and after current conversion, meanwhile, PQ control is introduced, the stability of output power and current is improved, and the reliability of the converter is improved. And a replacement plan of the aged power module is better arranged before the service life of the IGBT is ended.

The invention discloses a method and a device for detecting networking and grid-connected capabilities of a networking type energy storage system, and belongs to the field of power system detection. The method comprises the following steps: disconnecting the energy storage system from an external power grid, testing whether the energy storage system is independently started or not, and establishing a stable voltage; a dynamic power compensation algorithm is adopted to ensure that the voltage and the frequency are kept stable under load fluctuation, and a time domain response analysis method is adopted to ensure that the recovery time is less than or equal to 200ms; the grid-connected power is gradually increased or reduced, and the adjustment and response capability of the system within the rated power range of 0-100% is tested; applying voltage disturbances with different amplitudes, observing the dynamic response of the tested energy storage system, and testing whether the system can operate stably and keep active power output; a main power grid is simulated to be disconnected, whether an energy storage system recognizes and enters an island mode is detected, and the island detection speed is increased by using an improved positive and negative sequence impedance measurement method. A positive and negative sequence impedance measurement algorithm is adopted, the disconnection state of the main power grid is detected more quickly, island detection time is remarkably shortened, and fluctuation of voltage and frequency is reduced.

The invention discloses a method for evaluating the quality of a photovoltaic module. The evaluation method comprises the following steps: before a sequence aging test, heating a to-be-tested photovoltaic module, and performing a power test on the to-be-tested photovoltaic module to obtain a first power test result; after the sequence aging test, performing EL test and power test on the to-be-tested photovoltaic module under a T98% temperature condition to obtain a first EL test result and a second power test result; the defect percentage is calculated according to a second EL test result and the first EL test result of the photovoltaic module to be tested under the STC, and the second EL test result is obtained before the sequence aging test; calculating the power attenuation of the to-be-tested photovoltaic module under the T98% temperature condition by using the first power test result and the second power test result; and evaluating the quality of the photovoltaic module to be tested by using the defect percentage and the power attenuation. The evaluation method can effectively improve the accuracy and integrity of quality evaluation of the photovoltaic module.

The invention relates to the technical field of software testing, and provides a code atomic power testing method and device, electronic equipment and a computer program product. The method comprises the following steps: acquiring a code atomic power list and a document atomic power list; wherein the code atomic energy list records all atomic energy of the project code, and the document atomic energy list records all atomic energy of the project demand document corresponding to the project code; and comparing the code atomic power list with the document atomic power list, and determining the atomic power problem existing in the project code according to the comparison result. In the process, the atomic power test of the project code is automatically completed in a list comparison mode, and compared with a traditional test mode of manual checking, the test efficiency and accuracy can be greatly improved.

The invention discloses an electric inertia simulation braking power test bench and an electric inertia control method thereof, and relates to the technical field of electric transmission simulation of flywheels, the electric inertia simulation braking power test bench comprises a motor, an incremental encoder, a main shaft, a flywheel, a force arm frame, a mechanical friction braking torque sensor, an electric transmission control system and a brake disc; an incremental encoder is installed at the rear end of the motor, the transmission end of the motor is connected with the main shaft through a coupler, the flywheel is installed on the main shaft, a brake disc is installed on the force arm frame, and meanwhile the force arm frame is connected with a mechanical friction braking torque sensor. According to the invention, the angular speed, the angular displacement and the mechanical friction braking torque are synchronously collected, and the motor torque is calculated and given, so that the test bench operates in a state of approaching an equivalent flywheel and equivalently having no system resistance; the algorithm can control the total error within a very small range; accurate matching of rotational inertia is achieved, and the control precision can meet the high-precision test requirement. And investment and operation cost are saved.

A method for performing an astigmatism power test using a computing having a screen for displaying images relating to the astigmatism power test. The method includes determining an angle of astigmatism, calibrating visual acuity of the user, determining amplitudes required for the astigmatism correction, and determining the needed refraction, as well as a corresponding computer system.

The invention relates to an automatic power test method and device for a photovoltaic module, and relates to the field of photovoltaic test technology, and the method comprises the steps: controlling a mechanical arm to clamp the photovoltaic module in response to an optical signal; controlling the mechanical arm to move according to the moving track and placing the photovoltaic module; adjusting the light source to preset target brightness; collecting electrical performance parameters when the light source is adjusted to the target brightness; and performing power prediction and anomaly scoring on the electrical performance parameters. According to the invention, a photovoltaic module is clamped and placed through a mechanical arm by using light spots, a shading unit in the mechanical shading array module is controlled to perform shading according to a target shading mode instruction, the problems that manual adjustment is difficult to respond to test requirements of different modules and the photovoltaic module test efficiency is low are solved, automatic operation of photovoltaic module power test is realized, and the test efficiency is improved. And the testing efficiency and the testing precision of the photovoltaic module are improved.

The embodiment of the invention provides a chip computing power testing method and device and a storage medium, and the method comprises the steps: determining a testing environment of a to-be-tested chip, and enabling the required computing power of the chip to change according to a preset rule in the testing environment; in the test environment, running the chip to be tested; for a to-be-tested chip in operation, first change data, second change data, process delay and accuracy of the to-be-tested chip are collected, the first change data are used for representing data of chip temperature changing along with time, and the second change data are used for representing data of output computing power changing along with time; and evaluating the computing power fluctuation degree of the chip to be tested according to the first change data, the second change data, the process delay and the accuracy of the chip to be tested. According to the technical scheme provided by the invention, the problems that the real performance of the chip is difficult to reflect truly and the accuracy of chip evaluation is reduced in the prior art are solved.

The invention relates to a horizontal well fluid production profile testing method, and belongs to the technical field of oil and gas field testing. The method comprises the following specific steps: step 1, preparation work before testing; secondly, segmented setting is carried out; step 3, data acquisition; fourthly, the logging instrument is recycled; and 5, explaining a liquid production profile. The logging instrument with the soluble metal is combined with a perforating gun and a soluble bridge plug, so that the technical problem of evaluating the fracturing effect of the horizontal well with the long horizontal section is solved, the testing time of the liquid production profile of each section of the long horizontal section is shortened, and the testing success rate and the testing efficiency are improved.

The invention relates to the technical field of database structures, in particular to an electric power test database management analysis method and system.The electric power test database management analysis method comprises the following steps that all test data are collected and arranged in an electric power test database, and data access frequency and response time records are generated by calculating the query frequency and response time of all data columns; and based on the data access frequency and the response time record, evaluating a data access mode, and generating an index performance monitoring result. According to the method, accurate perception of the data access performance is realized through acquisition and analysis of the data column query frequency and the response time, a mode stability value is introduced into evaluation of the index performance, a multi-dimensional evaluation system of the data access performance is established, and index structure optimization is promoted to be more targeted. In the index structure reconstruction process, the CPU utilization rate, the memory occupancy rate and the I / O throughput are monitored and recorded in real time, and the resource use condition and the adjustment effect feedback condition in the index adjustment process are controlled.

The invention provides a GIS submillimeter particle defect accumulation and development stage identification method and device, and belongs to the technical field of power test equipment. Comprising the following steps: acquiring ultrasonic signals of submillimeter particles moving in a GIS (Geographic Information System) and extracting ultrasonic signal feature data; collecting pulse current signals and extracting pulse features; carrying out reliability verification on the ultrasonic signal characteristic data and the pulse characteristic data, and removing abnormal data; establishing a feature matrix based on the ultrasonic signal feature data and the pulse feature data, and inputting the feature matrix into a multilayer convolutional neural network CNN model for analysis to obtain an accumulation form and a development stage of particles in the GIS; the accumulation form and the development stage comprise a small-amplitude vertical jumping form in the early stage, a large-amplitude vertical jumping form in the middle stage, a horizontal diffusion form in the last stage and a fuzzy state. According to the detection method, the accumulation form and the development stage of the particles can be accurately judged, and the detection reliability is improved.

The invention discloses a testing device for LCD (liquid crystal display) production, and particularly relates to the technical field of LCD production, the testing device comprises a power tester, a voltage regulating mechanism and a testing mechanism, and a supporting mechanism, a rotating mechanism and a controller are arranged above the testing mechanism. Through the synergistic effect of the testing mechanism, the conveying mechanism, the supporting mechanism, the rotating mechanism and the adsorption mechanism, automatic testing and sorting are achieved; according to the device, a sensor is adopted to trigger an automatic testing process, a rotating mechanism and an adsorption mechanism which are driven by an electric oil cylinder are combined, automatic adsorption, multi-section type rotation (90 degrees anticlockwise / 3 degrees clockwise / 6 degrees anticlockwise / vertical downward movement) and accurate positioning of the display screen are completed, traditional manual operation is replaced, and the testing efficiency is remarkably improved; according to the switching assembly, through the linkage design of a magnetic block and a metal limiting block, automatic distribution of qualified products and unqualified products is achieved in cooperation with a discharging pressing rod and a waste pressing rod, secondary sorting is avoided, and the production safety is improved.

The embodiment of the invention provides an optical power testing system, method and equipment and a storage medium. The system comprises a light source, an attenuation piece, a rotating motor, a zero position sensor, an optical power meter and a control device. The attenuation piece comprises a plurality of fan-shaped areas, different fan-shaped areas have different transmittances, the zero-position sensor is installed on the attenuation piece, and the zero-position sensor is used as the zero pulse of the rotating motor and the initial position of rotation of the attenuation piece, so that correlation between the pulse of the rotating motor and the positions of the different fan-shaped areas of the attenuation piece is achieved. In combination with optical power acquired at different fan-shaped region positions corresponding to different pulses when the rotating motor drives the attenuation sheet to rotate, the control device constructs a corresponding relation between the pulses of the rotating motor and the optical power at the different fan-shaped region positions; the accurate determination of the transmittance of the attenuation piece can be realized by controlling the pulse of the rotating motor subsequently, and the accurate calibration of the transmittance of different positions of the attenuation piece is realized.

The invention discloses a high-power thin film thermopile laser power meter and a preparation method thereof, and relates to the technical field of laser detection equipment. The high-power thin-film thermopile laser power meter comprises a thermopile chip and a heat sink packaging shell, the thermopile chip comprises a substrate, a thermopile layer is arranged on the substrate, the thermopile layer comprises a plurality of thermocouple lines, the adjacent thermocouple lines are connected in series, the thermocouple lines are distributed in a square shape, the thermocouple lines are distributed in a step shape, and the thermopile chip is connected with the heat sink packaging shell. And a cold end thermal resistance layer and a hot end thermal resistance layer are respectively arranged above the cold end and below the hot end of the thermopile layer. The structure of the thermopile is optimized, the heat transfer path in the thermopile chip is regulated and controlled, the stability of the thermopile chip in a low laser power test is improved, the preparation process is improved, and the cost is reduced. The problems that an existing thin film thermopile laser power meter is low in sensitivity and poor in stability during low-power measurement, and a thermopile chip is prone to aging and poor in stability during high-power density measurement are effectively solved.

The invention discloses a passenger vehicle sliding resistance fitting calculation method. The method comprises the following steps that S1, a benchmarking vehicle is selected and determined; s3, testing dragging force of front and rear wheels under the balance weight based on the selected benchmarking vehicle; s4, a computer is adopted to analyze the windward area and the wind resistance coefficient of the research and development sample car, and the wind resistance F4 of the research and development sample car is calculated; and S5, based on the dragging force test result of the front and rear wheels in the step S3 and the wind resistance calculation result in the step S4, calculating to obtain a sliding resistance parameter of the vehicle to be researched and developed. The method has the advantages that the sliding resistance of the research and development sample vehicle is fitted by measuring the dragging force of the chassis transmission system of the competitive vehicle and simulating and calculating the wind resistance, the part target of the chassis transmission system of the research and development sample vehicle is decomposed, and the sliding resistance fitting precision before project approval is improved. The problem that the sliding resistance fitting calculation precision is poor before project approval is solved, and the fitting calculation method is simple and reliable.

The invention discloses a microwave power test method and platform and a multi-channel microwave power consistency control method. The microwave power test method comprises the following steps: firstly, adjusting the test environment temperature or the preheating time of a microwave signal source until the test environment temperature is within a preset temperature range and the preheating time of the microwave signal source meets a preset time range, then setting test parameters of the microwave signal source, and then starting from the initial power; adjusting the current output power of the microwave signal source according to the power step length, and controlling the microwave signal source to output a microwave signal to the to-be-detected detection module according to the current output power; the method comprises the steps that a microwave signal source is connected with a detection module to be tested, output voltage of the detection module to be tested is obtained, the output voltage is processed and stored, when current output power of the microwave signal source reaches end power, a test end signal is displayed, test is stopped, and input power test data and corresponding output voltage test data of the detection module to be tested are obtained. According to the invention, the efficiency and reliability of microwave power testing can be effectively improved.

The invention discloses a power supply aging test system, which belongs to the technical field of power supply testing and comprises a control module, a load module, a data acquisition module, an environment simulation module, an early warning module, a communication interface module, an identification module and a data management module. Comprehensive control and automatic management of a power supply aging test process are realized, the control module can send instructions such as test parameters and environment setting parameters to each module to ensure accurate control of test conditions, and meanwhile, the data acquisition module monitors working parameters of a power supply in real time to ensure real-time performance and accuracy of test data and improve test efficiency. Through the integrated and automatic design, the testing efficiency is greatly improved, errors caused by manual operation are reduced, and the testing result is more reliable.

The invention provides a radio frequency power supply test system, a radio frequency power supply performance optimization method and related equipment, and relates to the technical field of radio frequency power supply test. Comprising a radio frequency power supply and a testing device, the testing device is connected with the radio frequency power supply and comprises a phase shift circuit and a variable load circuit, and the testing device is used for adjusting the phase through the phase shift circuit and adjusting load impedance through the variable load circuit so as to simulate a changing load. The radio frequency power supply test system solves the problem that a traditional radio frequency power supply load test device lacks tests for different phase changes on a standing wave circle such as a radio frequency power supply load, and achieves the effects of facilitating a user to adjust test parameters and facilitating optimization of radio frequency power supply performance.

A hydrodynamic test and analysis method for ship inclined towing motion in waves comprises the steps that S1, a coordinate system is given, a ship inclined towing motion hydrodynamic model in waves is provided, an inclined towing motion hydrodynamic coefficient expression form is given, and a test scheme is determined; s2, selecting a proper force sensor according to an input test object, and completing sensor calibration and installation of a ship model; s3, according to the input wave parameters, debugging of actual wave making parameters is completed, and a wave file is generated; s4, installing and connecting the ship model-sensor and a hydrodynamic test device, carrying out a hydrodynamic test of inclined towing motion in waves, and completing the collection of test parameters; and S5, performing signal processing and analysis on the test signals acquired in the test process to obtain inclined towing motion hydrodynamic test results under different working conditions, and obtaining the ship inclined towing motion hydrodynamic coefficient in the wave according to the processing results, thereby providing important support for researching the hydrodynamic change rule and manipulation motion prediction in the ship manipulation process in the wave.

The invention relates to a performance test method of composite structure laser ceramic. The method comprises the steps of physicochemical characteristic test and laser output characteristic test of the composite structure laser ceramic. The physical and chemical characteristic test at least comprises a ceramic density test, a microstructure test, a transmittance test, a stress test and an ion doping test; the laser output characteristic test at least comprises pump light absorption characteristic test, thermal lens focal length test, end surface temperature test and laser output power test. According to the invention, by testing the internal structure characteristics and laser output characteristics of the composite structure laser ceramic, the evaluation of the comprehensive performance of the laser ceramic is realized, and rapid optimization feedback is provided for the design and preparation of the composite structure laser ceramic.

The invention discloses a high-speed magnetic levitation power load hardware-in-the-loop simulation test platform and method, and relates to the technical field of hardware-in-the-loop, and the high-speed magnetic levitation power load hardware-in-the-loop simulation test platform comprises a tested controller and a power load simulation module. The power load simulation module is connected with the tested controller through a power cable and a digital signal line, and the power load simulation module can provide a power test environment required by operation for the tested controller. According to the high-speed magnetic levitation power load hardware-in-loop simulation test platform, high-power signal transmission and power characteristic real-time online simulation are realized, and the defect that signal-level hardware-in-loop simulation cannot meet the high-power test requirement of a controller driving part in the prior art is overcome; and the integrity and the accuracy of the test of the high-speed magnetic levitation system controller are obviously improved.

The invention relates to the technical field of rocket power tests, and discloses a liquid oxygen supply system and a liquid oxygen supply method.The liquid oxygen supply system is characterized in that a liquid oxygen storage tank is provided with an extrusion gas inlet and a liquid oxygen inlet and outlet; the gas extrusion subsystem extrudes liquid oxygen in the liquid oxygen storage tank; the liquid oxygen filling subsystem is used for filling liquid oxygen into a liquid oxygen storage tank; the main regulating valve is connected with the liquid oxygen inlet and outlet; the input ends of the plurality of parallel branches are connected with the main regulating valve, and the output ends of the plurality of branches provide liquid oxygen for test pieces at different stations respectively; a branch regulating valve is arranged on each branch; the flow and pressure of each branch are adjusted by adjusting the opening degree of the main adjusting valve and adjusting the opening degree of the branch adjusting valves. The flow of each branch is adjusted by adjusting the opening degree of the adjusting valve of each branch, so that the resistance of each branch is as close as possible, and the high-precision control of the flow and pressure of test pieces at different stations is achieved; and multi-path equal-pressure equal-flow liquid oxygen distribution is realized. And the main regulating valve is combined to regulate the total flow.

The utility model relates to the technical field of new energy automobile air conditioner heating and electric heater test equipment of household appliances, and discloses PTC heater power test equipment, which comprises a placement table, a test assembly, an air supply assembly and a display assembly. The placement table is used for placing the PTC heater; the test assembly is arranged on the placement table, and the test assembly is connected with the PTC heater placed on the placement table; the air supply assembly communicates with the placement table and is used for providing airflow towards the placement table; the display assembly is connected with the test assembly. The test assembly is connected with the display assembly, after the PTC heater is connected with the power supply, the test assembly records the voltage, current, power and resistance changes of the PTC heater and displays the changes on a resistance meter of the display assembly, so that the test result does not need to be manually checked in real time, and the test efficiency is improved by adjusting the wind speed, the power and the current. And the performance of different products can be tested.

The invention discloses an automatic power distribution network fault processing method and system, and relates to the technical field of power distribution automation, and the method comprises the steps: monitoring power parameters in real time, recognizing abnormal nodes through an abnormality recognition method, and judging the types of the abnormal nodes; performing power test on the abnormal points, and generating corresponding processing signals for the faults based on test data; and a fault current signal is obtained and returned, and the fault point location is fed back to the online server processing platform. According to the method, the zero-sequence voltage transformer is used for monitoring the power parameters of the power distribution network in real time, so that faults in the power distribution network can be identified and diagnosed more accurately, and missing report and false report are reduced; by introducing an efficient positioning algorithm, the fault line and position can be quickly confirmed, the fault processing time is greatly shortened, and the risk of fault operation of the power distribution network system is reduced; and through rapid and accurate fault positioning, risks of equipment damage and fault expansion are reduced, and the overall operation reliability of the power distribution network is improved.

The intelligent assembly line comprises an assembly line body, a feeding station, a power testing station, a light source plate mounting station, an address code printing station, a diffusion plate mounting station, a yellow label pasting station, an overturning station, a red label pasting station, a first code scanning station and a packaging station, wherein the feeding station, the power testing station, the light source plate mounting station, the address code printing station, the diffusion plate mounting station, the yellow label pasting station, the overturning station, the red label pasting station, the first code scanning station and the packaging station are sequentially arranged on the assembly line body. A first labeling mechanism for labeling yellow labels and a second labeling mechanism for labeling red labels are respectively arranged on the yellow label labeling station and the red label labeling station. A first code scanning mechanism is arranged on the first code scanning station, information of a red label at the bottom of a lamp body is obtained through the first code scanning mechanism, a packaging support and a discharging grabbing mechanism are arranged on the packaging station, and a second code scanning mechanism is arranged at the bottom of the discharging grabbing mechanism. When the discharging grabbing mechanism grabs the lamp bodies from the assembly line body to the packaging support, the second code scanning mechanism obtains information of yellow labels on the tops of the lamp bodies and determines whether the information of the red labels is consistent with the information of the yellow labels or not.

The utility model discloses a photovoltaic module power testing device which comprises a testing room, a testing support, an illumination device and a storage battery are arranged in the testing room, the storage battery is installed above the testing support, the illumination device is located in front of the testing support, and a heating assembly is arranged on the back face of the testing support. An air blowing fan is installed above the testing support, an air inlet of the air blowing fan is connected with air outside the testing room through an air inlet pipe, and an air outlet of the air blowing fan faces the storage battery. According to the utility model, the storage battery and the blowing fan are arranged on the test bracket, and the blowing fan can extract air outside the test room to blow and cool the storage battery, so that the service life of the storage battery is prolonged, the normal work of the storage battery is ensured, and the influence on the power test result of the photovoltaic module is avoided.

The invention belongs to the technical field of radiation refrigeration, and provides a radiation refrigeration power testing device and method, and the device comprises a testing device main body which comprises a case, and a water-cooling reverse synchronous verification module, a heating constant-temperature power testing module and a synchronous parallel comparison testing module which are disposed in the case; the small meteorological station is independently arranged around the testing device main body, comprises a temperature sensor, a humidity sensor, a wind speed sensor, an atmospheric pressure sensor, a solar irradiance sensor and a wireless transmission module, and is used for monitoring and transmitting environmental parameters in real time; and the monitoring terminal is used for receiving and storing the environment parameters and the test data sent by the wireless transmission module. Compared with the prior art, the water-cooling reverse synchronous verification module and the heating constant-temperature power test module are introduced, so that the accuracy of a test result can be verified in real time, active correction is performed through comparison with a theoretical value, and the accuracy of the test result is ensured.

The invention relates to a test analysis method and device for a radio frequency power supply sensor and a storage medium, and the method comprises the steps: carrying out the power linearity data collection of the radio frequency power supply sensor according to different output powers under the condition of radio frequency open-loop output; obtaining power test acquisition data of the sensor channel and the ADC signal acquisition link channel at a plurality of power test indexes under different output powers; performing frequency linearity data acquisition on the radio frequency power supply sensor according to a plurality of test frequency points set for the sensor to obtain frequency test acquisition data of a sensor channel and an ADC signal acquisition link channel corresponding to the plurality of test frequency points; determining power test results corresponding to different output powers according to the power test acquisition data and the power meter calibration data of the two channels in the plurality of power test indexes under different output powers; and according to the frequency test acquisition data of the two channels corresponding to the plurality of test frequency points, obtaining frequency test results corresponding to different frequency indexes.

The utility model relates to the technical field of distribution lines, and discloses a distribution line grounding fault rapid detection device comprising a telescopic distance measuring rod, the bottom end of the telescopic distance measuring rod is provided with an electricity testing assembly, the interior of the telescopic distance measuring rod is fixedly connected with a connecting rod, the top end of the electricity testing assembly is provided with a detection head, and the top end of the connecting rod is fixedly connected with the connecting rod. An expansion block is fixedly connected to one side of the telescopic distance measuring rod, a mounting block is slidably connected to the interior of the top end of the expansion block, a containing hole is formed in one side of the expansion block, two first strong springs are arranged in the containing hole, and two pulling rods are slidably connected to the inner wall of one side of the expansion block. According to the hook, the pull plate is pulled, the pull rod is driven to enable the connecting plate to drive the clamping rod to slide out of the interior of the mounting block, at the moment, the hook can be rapidly replaced, the problem that the performance of the hook is reduced due to abrasion and aging caused by long-term use is solved, and the hook keeps the optimal performance.