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38results about How to "Improve test convenience" patented technology
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NBTI (negative bias temperature instability) degradation detection system for SoC (system on chip)
ActiveCN107202951AEasy to operateImprove test convenienceElectronic circuit testingComputer moduleEngineering
The invention relates to an NBTI (negative bias temperature instability) degradation detection system for a SoC (system on chip). The NBTI degradation detection system comprises a measurement ring oscillator, a reference ring oscillator, a first counter module and a second counter module, wherein the measurement ring oscillator is connected with a power supply end and the first counter module; the reference ring oscillator is connected with a power supply end and the second counter module; the measurement ring oscillator receives signals for characterizing an external circuit located in the same aging environment with a tested circuit on the SoC, after stopping receiving the signals of the external circuit, the measurement ring oscillator accesses voltage input by the power supply end at the same time with the reference ring oscillator and starts oscillation, the measurement ring oscillator and the reference ring oscillator output waveforms to the first counter module and the second counter module respectively during oscillation, the first counter module and the second counter module count levels of the received waveforms, numbers of levels for NBTI degradation detection of the tested circuit are obtained respectively, and whether the tested circuit has NBTI degradation is judged accordingly. The operation is simple and reliable, and test convenience is high.
Owner:CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
Automatic testing method and device for rotary transformer
ActiveCN111025061AAchieve quantificationImprove test accuracyElectrical testingData setStatistical analysis
The invention relates to an automatic testing method and device for a rotary transformer, and relates to the field of electromagnetic element manufacturing. The invention discloses the automatic testing method for the rotary transformer. The sine output zero voltage of a stator is efficiently and accurately found by controlling a rotor to rotate at a low speed and rotate positively and negativelyin a fine-tuning manner; a zero voltage interval range and a phase difference are used; the problem type is intuitively and effectively judged; fixed-angle stepping rotation of the rotor is controlled; a stator output voltage theoretical peak value data set is obtained through multiple times of fixed-angle stepping rotation, statistical analysis is conducted on the sine output voltage theoreticalpeak value data set and the cosine output voltage theoretical peak value data set respectively, a data dispersion coefficient serves as a peak value voltage consistency index, quantification of a problem judgment basis is achieved, and the test accuracy is improved.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES
Engine performance experiment bed engine oil temperature control system
PendingCN110243607AEasy to testImprove test efficiencyEngine testingTemperatue controlFour-way valveControl system
The invention provides an engine performance experiment bed engine oil temperature control system applied to the technical field of engine performance experiment equipment. An oil pump (2) of an engine performance experiment bed engine oil temperature control system communicates with four third solenoid valve (4), the four third solenoid valve (4) communicates with an electrical heater (5), the electrical heater (5) communicates with a four-way valve (6), the four third solenoid valve (4) communicates with an oil path inlet of a heat exchanger I (7), the heat exchanger I (7) communicates with the four-way valve (6), the four third solenoid valve (4) communicates with a heat exchanger II (8), the heat exchanger II (8) communicates with the four-way valve (6), and the four-way valve (6) communicates with a heat exchanger III (9). In the engine performance experiment bed engine oil temperature control system, an engine oil temperature can be reliably controlled during the performance experiment process of an engine, the performance experiment convenience and reliability of the engine is effectively improved.
Owner:GIF RES CENT CHINA
ASE light source test system
InactiveCN110553684ASolve the problem of high test cost and low efficiencyLow input costSpectrum investigationPhotometryFiberOptoelectronics
The invention relates to an ASE light source test system. The system comprises ASE light source test integrated equipment used for supplying power to a tested light source and acquiring light power and driving current information; and a test computer connected with the ASE light source test integrated equipment. The ASE light source test integrated equipment comprises a power supply module, a control circuit board and a plurality of detectors, wherein the power supply module is expanded to multi-path output through the control circuit board, and the detectors are connected with tail fibers ofa tested ASE light source. Eight light sources can be tested at the same time, each channel operates independently and does not interfere with each other, and the test capability is improved. Moreover, in hardware design, functions of a microprocessor are fully utilized, chips such as an external ADC are avoided, the design is simplified, and the development cost of test equipment is reduced.
Owner:TIANJIN NAVIGATION INSTR RES INST
Metal hydrogen embrittlement sensitivity testing system
InactiveCN106872270ATo achieve the purpose of the testSolve the technical problems of long test periodWeather/light/corrosion resistanceMaterial strength using tensile/compressive forcesBody shapeElectrical control
The invention relates to a metal hydrogen embrittlement sensitivity testing system, comprising an independent loading unit, a stainless steel water tank arranged in the independent loading unit, a central heating fluid-flushing station arranged on the side face of the independent loading unit, an electrical control cabinet arranged on the side face of the central heating fluid-flushing station, and a centralized recycle bin arranged on the side face of the electrical control cabinet, wherein the stainless steel water tank is in a trough body shape; the stainless steel water tank is internally provided with a constant temperature environment box; the upper end of the constant temperature environment box is provided with a first temperature sensor; the constant temperature environment box is internally provided with a round bar sample in a penetrating way; a threaded compression sealing element used for sealing is arranged at the connecting part of the round bar sample and the side wall of the constant temperature environment box; another threaded compression sealing element used for sealing is arranged at the connecting part of the round bar sample and the side wall of the stainless steel water tank; anchorage device clamping pieces are also respectively arranged at the two ends of the round bar sample.
Owner:WATER CONSERVANCY & HYDROPOWER SCI RES INST OF LIAONING PROVINCE +1
Device for testing organic gas transmissivity
InactiveCN102621033AHigh pipeline integrationEquipment is smallPermeability/surface area analysisProduct gasTraining set
The invention discloses a device for testing organic gas transmissivity. The device comprises a quantitative sampling device, a permeation pond, a detection device and a connection pipeline between the quantitative sampling device and the detection device, wherein the quantitative sampling device comprises a valve I, a valve IV, a multi-station communicating valve, a quantification device and connection pipelines connected among the components; the permeation pond is divided into an upper permeation pond cavity and a lower permeation pond cavity by a sample; the lower permeation pond cavity comprises a structural block, a valve and a through hole and is used for connecting the permeation pond and the detection device through the quantitative sampling device; the structural block is provided with a permeation gas hole, a sampling hole, a vacuum pump gas hole and a carrier gas input hole; and the permeation pond is connected with the detection device through the quantitative sampling device. The device has a simple structure and is convenient to operate; and the problems of inaccurate sampling amount, sampling difficulty, low sample injection precision and the like which are caused by sample gas pressure during test of gas permeability of a thin film are solved.
Owner:LABTHINK INSTR
High temperature life accelerated test method for lithium iron phosphate battery
ActiveCN106093794BImprove accuracyGuaranteed Conversion RequirementsElectrical testingLithium iron phosphateStrong reference
The invention discloses a lithium iron phosphate battery high-temperature life accelerated test method. A formed lithium iron phosphate battery is taken, and initial capacity test, initial accelerated test and cyclic accelerated test are carried out. Cyclic accelerated test refers to stepwise accelerated test at different temperatures and ends until the discharge capacity is less than 75% of the nominal capacity. The room-temperature discharge capacity of the last discharge cycle in the third step is converted into a capacity retention rate, and then, transformation is implemented according to a room-temperature life and high-temperature life transformation data table at a corresponding charging temperature to get the room-temperature life of the tested lithium iron phosphate battery. The lithium iron phosphate battery high-temperature life accelerated test method of the invention has the characteristics of high test accuracy, short test period, convenient test process, and strong reference.
Owner:BST POWER SHENZHEN
Application testing method, system and equipment and computer readable storage medium
ActiveCN109656826AQuality assuranceImprove test convenienceSoftware testing/debuggingSpoof detectionTest requirementsLiving body
The invention discloses an application test method, which comprises the following steps: when an application test instruction is monitored, obtaining corresponding scene test data according to the application test instruction, and obtaining an installation package of a to-be-tested living body detection application containing an automatic test code; Writing the scene test data into an installationpackage to obtain a test installation package, generating a test request containing the test installation package, and sending the test request to a remote real machine platform; The remote real machine platform sends the test installation package in the test request to a remote real machine; And the remote real machine installs the target living body detection application containing the automatic test code according to the test installation package, operates the target living body detection application after the installation is completed, and executes a corresponding test process so as to test the target living body detection application. The invention further discloses an application testing system and device and a computer readable storage medium. The method can improve the test convenience of the in-vivo detection application and ensure the quality of the in-vivo detection application.
Owner:WEBANK (CHINA)
Testing method for CMOS sensors
The invention relates to a testing method for CMOS sensors, which mainly solves the technical problems of few testing functions and small number of testing chips in the existing technology. The method adopts the following technical scheme that a system comprises a parallel light box, N lens-less CMOS sensors and a test board, wherein when the lens-less CMOS sensors are tested, the lens-less CMOS sensors are corresponding to the position of parallel light; the test board is connected to the lens-less CMOS sensors and comprises an image sensor used for collecting signal data; the lens-less CMOS sensors and the test board are both fixed on a fixing plate of the test board, and the fixing plate of the test board is fixedly connected to a lifting platform; the test board is connected to a control unit through a USB2.0, the control unit is also connected to the lifting platform, and the control unit is connected to an upper computer through a USB cable and a serial port. According to the method, the problems are better solved, and the method can be used for performance test of the CMOS sensors.
Owner:国芯微(重庆)科技有限公司
Test system for CMOS sensor
The invention relates to a test system for a CMOS sensor and mainly solves the technical problem that in the prior art, test functions are few and the number of test chips is low. The system provided by the invention comprises a parallel light lamp box; N CMOS sensors without lenses, wherein the CMOS sensors without the lenses correspond to positions of parallel light when the CMOS sensors without lenses are tested; and test boards connected with the CMOS sensors without the lenses, wherein the test boards comprise image sensors for collecting signal data, the CMOS sensors without the lenses and the test boards are fixed on a test board fixing frame, the test board fixing frame is fixed on a lifting platform, the test boards are connected with a control unit through USB2.0, the control unit is also connected with the lifting platform, and the control unit is connected with an upper computer through a USB cable and a serial port. According to the technical scheme, the problem is solved well, and the system can be applied to a performance test of the CMOS sensor.
Owner:嘉准传感科技(湖南)有限公司
Test equipment of group control system control cabinet
PendingCN108803583AImprove test convenienceElectric testing/monitoringTotal factory controlField conditionsButterfly valve
The invention relates to the test equipment of a group control system control cabinet. The equipment comprises a plurality of test circuits under different test processes and a change-over switch. Theplurality of test circuits are connected to the change-over switch. The plurality of test circuits are connected to the tested controller of a control cabinet. The change-over switch is used for switching the test processes of the tested controller. The test circuits are used for carrying out simulation testing corresponding to the test processes on the tested controller according to the test process of the change-over switch lock switching. The test equipment is taken as the simulation equipment of an electric butterfly valve. The tested controller is connected to the test circuit corresponding to the test process of the test equipment. According to the switching state of the change-over switch, the test circuit corresponding to the test process carries out the simulation test corresponding to the test process on the tested controller. Through the test equipment, the control conditions of the tested controller to the electric butterfly valve under various field conditions can be simulated and detected, and test convenience is improved.
Owner:GREE ELECTRIC APPLIANCES INC
Dynamic test board for needle-shaped terminal full-bridge power module
PendingCN114062797AEasy to adjustFlexible adjustmentElectrical measurement instrument detailsCircuit interrupters testingCapacitanceBus interface
The invention discloses a dynamic test board for a needle-shaped terminal full-bridge power module, and belongs to the field of power module testing. A plurality of needle-shaped terminals are arranged on the power module, and the test board comprises a direct current bus interface, a connecting module, a driving module, a decoupling module, an inductance access module and a test module which are arranged on a double-layer circuit board; the connecting module is arranged on the outlet side of the double-layer circuit board and comprises a plurality of connecting holes in one-to-one correspondence with the needle-shaped terminals; the decoupling module is formed by connecting a plurality of decoupling branches in parallel, each decoupling branch is formed by connecting a plurality of surface-mounted decoupling capacitors in series, and the two ends of each surface-mounted decoupling capacitor are connected with a surface-mounted resistor in parallel; the decoupling module is connected with the power module plugged on the connection module, and the distance between the decoupling module and the power module is smaller than a preset threshold value; and the direct current bus interface, the driving module, the inductance access module and the test module are respectively connected with the corresponding connecting holes. The dynamic test board is small in area, low in cost, flexible to adjust and resistant to high voltage, and the test effect is improved.
Owner:HUAZHONG UNIV OF SCI & TECH +1
Multi-channel data acquiring device for measuring fragment group target landing position and target landing time
InactiveCN110425937AReduce test costsSmall sizeAmmunition testingDevices using time traversedPower parameterReal-time computing
The invention belongs to the technical field of power parameter testing of killing warhead fragment groups, in particular relates to a multi-channel data acquiring device for measuring fragment grouptarget landing position and target landing time. The multi-channel data acquiring device comprises a single-chip microcomputer master-slave communication system, a comb-shaped target and a computer, wherein the single-chip microcomputer master-slave communication system is formed by connecting a master machine and a plurality of slave machines, fragment target landing signals collected by the slave machines are sent to the master machine in one time, and then the master machine sends the signals to the computer. According to the multi-channel data acquiring device for measuring the fragment group target landing position and target landing time, the fragment target landing signals can be converted into corresponding I / O port level signals, and information of target landing positions and corresponding target landing time of fragments can be discerned; and the multi-channel data acquiring device is used for measuring the information of the target landing position and the corresponding target landing time of the fragment group so that the test cost can be reduced. The multi-channel data acquiring device is small in size, simple in structure and capable of improving test convenience.
Owner:XIAN MODERN CHEM RES INST
Portable server hardware test terminal
ActiveCN109032869AImprove test convenienceShorten test timeDetecting faulty hardware by configuration testKey pressingWired communication
The invention provides a portable server hardware test terminal, comprising: a terminal body which is provided with a display screen, a network connection control key group and a test control key group. The tester can carry the test terminal, obtain the network connection control instruction through the network connection control key, call the communication module, and make the communication module and the server to be tested carry on the network communication connection; after the communication module is successfully connected with the network of the server to be tested, the network connection success signal is returned to the processor, and the processor displays the network connection success signal on the display screen. Thus, the remote communication connection or wired communicationconnection between the test terminal and the server to be tested is realized, which is convenient for on-site detection and testing.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
Water distribution ring pipe
PendingCN114576062AQuick changeImprove the convenience of testingHydro energy generationEngine componentsJet flowMechanics
The invention discloses a water distribution ring pipe, which belongs to the technical field of fluid mechanical engineering equipment, comprises a water distribution ring pipe upper section and a water distribution ring pipe lower section which are connected to form a ring pipe body, and is characterized by further comprising a runner chamber and an angle adjusting ring, a first fixing base is fixed to the top of the annular pipe body, a second fixing base is fixed to the bottom of the annular pipe body, the first fixing base and the second fixing base are both located at the joint of the annular pipe body and the branch pipe, a branch pipe splitter plate is embedded between the first fixing base and the second fixing base, the cross section of the branch pipe splitter plate is in a tapered wedge shape, and a transition flange is arranged on the runner chamber. The transition flange and the runner chamber are connected through an angle adjusting ring. By replacing the branch pipe splitter plate, a hydraulic flow channel can be rapidly changed, the jet flow angle is adjusted, rotating wheels with different pitch circle sizes are replaced for testing, and the model testing convenience is greatly improved.
Owner:DONGFANG ELECTRIC MACHINERY
A test method for cmos sensor
The invention relates to a testing method for CMOS sensors, which mainly solves the technical problems of few testing functions and a small number of testing chips in the prior art. The invention adopts a parallel light box and N lensless CMOS sensors Corresponding to the position of the parallel light when the lensless CMOS sensor is tested; the test board connected to the lensless CMOS sensor, the test board includes an image sensor for collecting signal data; the lensless CMOS sensor and the test board are fixed on the test board The test board fixed board is fixedly connected to the lift table; the test board is connected to the control unit through USB2.0, the control unit is also connected to the lift table, and the control unit is connected to the host computer through a USB cable and a serial port The technical scheme of connection can better solve this problem and can be used in the performance test of CMOS sensor.
Owner:国芯微(重庆)科技有限公司
A test method for linear sensors
ActiveCN106908716BImprove test convenienceImprove test accuracyElectronic circuit testingComputer moduleOperational amplifier
The invention relates to a test method applied to a linear sensor. The technical problems of complex test process and low test precision in the prior art are solved. According to the invention, the test system comprises the linear sensor to be tested, an AMP operational amplifier, an ADC conversion module which is connected with the AMP operational amplifier, an FPGA which is connected with the ADC conversion module, an A380 image processor which is connected with the FPGA, and a host computer which is connected with the A380 image processor; the FPGA is connected with a light source module; the test method comprises the steps of illumination setting, parameter presetting, data preprocessing and data reversing; various poor technical schemes are judged; the problems are well solved; and the test method can be used in the industrial production of linear sensors.
Owner:深圳市海纳微传感器技术有限公司
Circuit testing device
InactiveCN101290330BImprove test convenienceFast testCurrent/voltage measurementElectronic circuit testingTest efficiencyHemt circuits
The invention discloses a circuit testing device for testing an element to be tested. The circuit testing device comprises an accurate measurement module, a signal converting module and a microprocessor, wherein, the accurate measurement module is coupled with the element to be tested and is used for providing a test signal and receiving a measure signal generated according to the test signal; the signal converting module is coupled with the accurate measurement module and is used for receiving the measure signal and converting the measure signal according to a preset way as well as generating a signal measure result; and the microprocessor is coupled with the accurate measurement module and the signal converting module and is used for determining the testing result of the element to be tested according to the signal measure result. The circuit testing device brings convenience of test to a user, increases the speed of test and improves the efficiency of test further.
Owner:PRINCETON TECH CORP
SVG low voltage ride through characteristic test method
The invention relates to the technical field of electric energy control, in particular to a method for testing the low-voltage ride-through characteristic of an SVG (Static Var Generator). According to the technical scheme, the method comprises the following steps that firstly, a low-voltage ride-through simulation test function is added into an SVG converter control system; and 2, adding low-voltage ride-through simulation test parameters into the SVG converter control system. And 3, completing correctness test of test functions and test parameters on a test platform of an equipment manufacturer, wherein field test conditions are provided. And 4, after the converter control system is upgraded on the SVG site, testing is carried out, and data are recorded. And a fifth step of analyzing related active and reactive power control characteristics according to the active power and the reactive power which are obtained through actual measurement, and completing a test. The method has the advantages that the test cost is low, the test difficulty is small, field tests can be conveniently carried out, the converter control system is adopted for data recording, and the test convenience can be further improved.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER COMPANY +1
Application testing method, system, device, and computer-readable storage medium
ActiveCN109656826BQuality assuranceImprove test convenienceSoftware testing/debuggingSpoof detectionLiving bodyAutomatic testing
Owner:WEBANK (CHINA)
Low-scattering foam support for target radar scattering characteristic test
PendingCN114740443AErection height adjustableRealize leveling and positioningWave based measurement systemsMortise and tenonClassical mechanics
The invention discloses a low-scattering foam support for target radar scattering characteristic testing, which belongs to the technical field of RCS (radar cross section) testing, comprises a foam supporting platform, and is characterized by further comprising a foam supporting seat, a first foam supporting body, a second foam supporting body and a third foam supporting body, the first foam supporting body comprises a first large supporting body and a first small supporting body detachably connected to the first large supporting body, the second foam supporting body comprises two second supporting blocks which are detachably connected, the two second supporting blocks are symmetrically arranged along the horizontal line, the third foam supporting body comprises two third supporting blocks which are detachably connected, and the two third supporting blocks are symmetrically arranged along the horizontal line. The two third supporting blocks are symmetrically arranged along the horizontal line, and the first large supporting body is located above the foam supporting base and connected with the foam supporting base in a mortise and tenon mode. The erecting height of the foam support can be adjusted, leveling and positioning of the support can be achieved, the low scattering characteristic of the support is guaranteed, and the testing effect is improved.
Owner:CHENGDU AIRCRAFT INDUSTRY GROUP
Method and system for monitoring terminal background process
ActiveCN106708705BTimely repairImprove test convenienceHardware monitoringBackground processEmbedded system
Owner:TENCENT TECH (SHENZHEN) CO LTD
Door window test system
PendingCN110806288AImprove performanceImprove the pressure effectMeasurement of fluid loss/gain rateAerodynamic testingTest efficiencyElectronic control system
The embodiment of the invention provides a door window test system. The door window test system comprises a door window, an electronic control system, a high voltage variable frequency fan, a back wallboard, a displacement acquisition system and a CPU module, wherein the door window is hoisted on the back wallboard by virtue of a transmission device and forms an airtight cavity with the back wallboard; by virtue of the electronic control system, air pressure output of the high voltage variable frequency fan is controlled, a static air pressure is formed in the airtight cavity, and a test is performed; by virtue of the high voltage variable frequency fan, maximum output power can reach 12kPa, and positive and negative pressure switching is performed, so that performance of the test system is stable; the test system provided by the embodiment of the invention has excellent pressure capacity and electronic control stability and can cope with a large load test on a large-size door window product; multiple door windows can be tested, so that test efficiency is improved; a spraying system can be combined according to the actual situation, so that test convenience is improved; and a testresult is obtained by virtue of the CPU module.
Owner:深圳天祥质量技术服务有限公司
Testing system for audio interface of wireless communication module
ActiveCN111698630AEasy to testImprove test convenienceSubstation equipmentComputer hardwareAudio frequency
The invention discloses a test system for an audio interface of a wireless communication module. The wireless communication module comprises pins MICP, MICN, SPKP and SPKN, a first GPIO and an analog-to-digital conversion interface. The test system comprises a first conversion circuit, a second conversion circuit and a first switching circuit; audio signals input by the MICP and the MICN are output to the SPKP and the SPKN; the first conversion circuit converts the received SPKP signal into a first signal and outputs the first signal to the first input end of the first switching circuit; the second signal conversion circuit converts the received SPKN signal into a second signal and outputs the second signal to the second input end of the first switch circuit, the first switch circuit outputs the first signal or the second signal to the analog-to-digital conversion interface under the control of the first GPIO, and whether the test is passed is judged according to the voltage data of the analog-to-digital conversion interface. According to the audio interface testing system of the wireless communication module, testing equipment is simplified, and testing is convenient.
Owner:SIMCOM WIRELESS SOLUTIONS SHANGHAI
A portable server hardware testing terminal
ActiveCN109032869BRealize remote communication connectionConvenient for on-site inspection and testingDetecting faulty hardware by configuration testWired communicationNetwork communication
The invention provides a portable server hardware testing terminal, comprising: a terminal body; a display screen, a network connection control button and a test control button group are arranged on the terminal body; testers can carry the test terminal, and obtain network connection control through the network connection control button Instructions, calling the communication module, so that the communication module and the server under test are connected through network communication; after the communication module and the server under test are successfully connected to the network, the network connection success signal is returned to the processor, and the processor displays the network connection success signal on the display screen In this way, the remote communication connection or wired communication connection between the test terminal and the server to be tested is realized, which is convenient for on-site detection and testing.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
Multifunctional test equipment for mobile terminals
ActiveCN110501592BImplement automated testingImprove work efficiencyMachine part testingPhotometryControl systemStructural engineering
The invention relates to multifunctional test equipment used for a mobile terminal and especially relates to the test equipment field. The equipment comprises a box body, a carrier moving device, a testing device and a control system. The box body comprises an upper box body, a lower box body and a horizontal supporting plate arranged between the upper box body and the lower box body. The carriermoving device is located in the upper box body, the carrier moving device is arranged on the horizontal supporting plate and can move along a Y direction of the box body, and an opening where the carrier moving device can pass through is arranged in a side wall of one side of the Y direction of the upper box body. The testing device comprises a testing mechanism and a rectangular coordinate robotarranged in the upper box body. In the invention, various test items can be integrated into one machine, and the equipment can be connected and cooperated with a whole assembly line so that an automatic test is realized, working efficiency and quality are improved, an occupied area is reduced, manpower is greatly reduced, and cost is saved.
Owner:SHENZHEN WELLTEST TECH CO LTD
Automatic test tool and automatic test method for Simulink model
PendingCN114817001AFix software bugsImprove the convenience of testingSoftware testing/debuggingE testingPoint data
The invention relates to a Simulink model-oriented automatic test tool and method, and the tool comprises a first setting module which is used for setting the comparison precision of a simulation step length and a test result; the third selection module is used for selecting an MIL simulation mode or an SIL simulation mode; the fourth selection module is used for selecting to execute a single test case or multiple test cases; the calculation module is used for calculating the coverage degree of the test; the second setting module is used for setting only comparison of expected time point data or comparison of each simulation step length; the automatic testing module is used for executing automatic testing on the to-be-tested Simulink model based on the test case; the generation module is used for generating a test result based on the current test case; according to the method, the to-be-tested model and the test case can be rapidly loaded by a tester, then one-key automatic testing is completed, the tool is provided with personalized configuration, a user can select required configuration on a front-end interface according to own needs, then personalized testing is carried out, and the application range is wide.
Owner:重庆长安新能源汽车科技有限公司
Printed circuit board and manufacturing method thereof
PendingCN114449737AImprove stabilityThere will be no large difference in the transmission signalLaminating printed circuit boardsInspection/indentification of circuitsCopper foilMechanical engineering
The invention relates to the technical field of electronic product processing, in particular to a printed circuit board. According to the technical scheme, the circuit board comprises a circuit board body, the circuit board body comprises a core plate, prepregs are arranged on the two sides of the core plate, copper foil is connected to the other sides of the prepregs, an aluminum plate is arranged on the other side of the copper foil, blind holes are formed in the aluminum plate, and signal holes are formed in the circuit board body. The invention further discloses a manufacturing method of the printed circuit board. The manufacturing method comprises the following steps: S1, preparing materials; s2, punching and pressing; s3, hole treatment; and S4, transfer electroplating. The printed circuit board is convenient to test, high in signal transmission stability, high in signal transmission accuracy, simple in pressing mode, capable of reducing processing steps and improving processing efficiency, suitable for processing and using circuit boards with different layer numbers, capable of improving using flexibility and universality and suitable for application and popularization.
Owner:上海卓冬应用技术工程有限公司
A testing system for linear sensors
ActiveCN106908715BImprove test convenienceImprove test accuracyElectronic circuit testingOperational amplifierComputer science
The invention relates to a test system applied to a linear sensor. The technical problems of complex test process and low test precision in the prior art are solved. According to the invention, the test system comprises the linear sensor to be tested, an AMP operational amplifier, an ADC conversion module which is connected with the AMP operational amplifier, an FPGA which is connected with the ADC conversion module, an A380 image processor which is connected with the FPGA, and a host computer which is connected with the A380 image processor; the FPGA is connected with a light source module; problems are well solved; and the test system can be used in the industrial production of linear sensors.
Owner:上海拍频光电科技有限公司
Automatic test method and device for resolver
ActiveCN111025061BAchieve quantificationImprove test accuracyElectrical testingControl engineeringPeak value
The invention relates to a rotary transformer automatic testing method and device, and relates to the field of electromagnetic element manufacturing. The automatic test method of the rotary transformer of the present invention efficiently and accurately finds the zero voltage of the stator sinusoidal output by controlling the low-speed rotation of the rotor and fine-tuning the forward and reverse rotations, and intuitively and effectively judges through the range of the zero voltage range and the phase difference The type of problem, by controlling the rotor to rotate at a fixed angle step by step, and after several times of step rotation at a fixed angle, the theoretical peak data set of the stator output voltage is obtained, and the statistical analysis is performed on the theoretical peak data set of the sine and cosine output voltage respectively, and the dispersion coefficient of the data is As a peak voltage consistency indicator, it realizes the quantification of the basis for problem determination and improves the test accuracy.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES
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