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69results about How to "To achieve the purpose of testing" patented technology
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Mid-infrared noninvasive blood glucose detection equipment
InactiveCN105662434ABasic vibration sharpStrong overtoneDiagnostic recording/measuringSensorsSignal-to-noise ratio (imaging)Glucose detection
The invention discloses mid-infrared noninvasive blood glucose detection equipment which comprises a light source part, a detection part, a receiving part and a calculating part.The light source part is used for sending mid-infrared detection rays to the detection part, the detection part has a detection face used for making contact with an object to be detected, the mid-infrared detection rays become emergent rays carrying information of the object to be detected, the receiving part is used for receiving the emergent rays and transmitting the emergent rays to the calculating part, and the calculating part is used for calculating a blood glucose value of the object to be detected according to the emergent rays.The blood glucose detection equipment can achieve the purpose of noninvasive blood glucose testing and adopts the mid-infrared detection rays for testing, the signal-to-noise ratio in the blood glucose detection process is effectively increased, and therefore more accurate blood glucose detection is achieved.
Owner:BEIJING KEYUJIA TECH CO LTD
Testing device of 3D-SIC (Three-Dimensional-Semiconductor Integrated Circuit) through silicon vias provided with signal rebounding module
ActiveCN102856226ATo achieve the purpose of testingSmall areaSemiconductor/solid-state device testing/measurementComputer moduleSignal generator
The invention discloses a testing device of a 3D-SIC (Three-Dimensional-Semiconductor Integrated Circuit) through silicon vias provided with a signal rebounding module. A sending end is connected with a receiving end by through a plurality of silicon vias TSVs. The sending end comprises a first tested chip, a decoder, a control unit CU, a latch D and a bidirectional switch DSW. The receiving end comprises a second tested chip and a signal rebounding module. The signal rebounding module comprises a signal generator F, a plurality of delay cells and a plurality of three-state gates. The upper ends of the TSVs are connected with the delay cells M and the signal generator F at the receiving end. The lower ends of the TSVs are connected with the decoder and the DSW at the sending end. The decoder, the latch D and the DSW are connected with the CU. The latch D is further connected with the DSW. The testing device of the 3D-SIC through silicon vias provided with the signal rebounding module can effectively solve the problem that failed TSVs in the 3D chip preparing process are hard to detect effectively, and has the advantages of smaller area and practical expenses and lower power consumption and the like.
Owner:HEFEI UNIV OF TECH
Device for testing high voltage large-capacity electrical apparatus dielectric loss tangent value
InactiveCN101285860AReduced power capacitySimple structureResistance/reactance/impedenceCapacitancePower capability
The invention discloses a device for measuring the dielectric loss angle tangent value of high-voltage high-capacity electric equipment. The device comprises a voltage-applying device, a transformer and an electric reactor which are connected in series, wherein the three devices are connected in series with tested electric equipment and a standard capacitor which are connected in parallel to form a serial LC resonance circuit; the tested electric equipment is a tested product; the tested product and the standard capacitor in the serial LC resonance circuit are respectively connected in series with a current transformer; and the current transformer is connected with a testing analysis system which carries out detection, analysis and processing of the current signal collected by the current transformer. The device has simple and reasonable structure and simple use and operation, and can greatly reduce the power capacity of a high-voltage voltage-applying device used in testing; moreover, the device can carry out direct, convenient and accurate testing of the dielectric loss angle tangent value of high-voltage high-capacity electric equipment on the spot.
Owner:西安四方机电有限责任公司
Test bench for testing working conditions of motor under different temperature environments
InactiveCN105116176AImprove sealingPlay the role of controlling the test environmentMeasurement instrument housingDynamo-electric machine testingControl theoryTest bench
The invention relates to a test bench for testing the working conditions of a motor under different temperature environments. One side of a test environment adjustment and control box (2) is provided with a fixing rack (1); the fixing rack (1) is provided with an installation stage (3); the installation stage (3) is provided with a servo motor (4); the main shaft of the servo motor (4) faces the test environment adjustment and control box (2) and is connected with one end of the main shaft of a torque sensor (5); the other end of the main shaft of the torque sensor (5) is connected with one end of the main shaft of a seal box sealing assembly (6) installed at the inner wall of the test environment adjustment and control box (2); and the other end of the main shaft of the seal box sealing assembly (6) is connected with the main shaft of a test motor (7). The test bench of the invention has the advantages of simple structure, convenient operation and high detection speed, and can detect the working conditions of the motor under different temperatures.
Owner:NINGBO TUOPU INTELLIGENT BRAKE SYST
Fireproof tester used for single layer framework measurement
InactiveCN101430319ASave fuelReduce experiment costStructural/machines measurementMaterial testing goodsFire hazardTube furnace
The invention relates to a fire-resistant test device which is used for inspecting a single-layer framework. The device solves the problem that existing fire-resistant test furnaces cannot load architecture components and test the mechanical property and structural reaction of architecture components so that the fire-resistant design of architecture structure cannot be properly guided. The test device also comprises a reaction frame and two jacks; an outer furnace body consists four outside walls and takes the shape of a quadrangular prism; the inner furnace body consists of two inner walls and an inner furnace cover; the reaction frame is arranged outside the outer furnace; and the jacks are arranged under a beam of the reaction frame and connected with the lower surface of the beam. In the invention, the reaction frame and the jack are used for loading the test components so as to simulate real force of the test components; and the inner furnace is internally arranged in the outer furnace so that a fire hazard is only simulated between the inner furnace and the outer furnace, thus the testing aim is achieved and fuels can be saved by over 30 percent.
Owner:HARBIN INST OF TECH
Link connectivity detection system and method
ActiveCN105306306AAccurate verificationTo achieve the purpose of testingData switching networksAutomatic testingEmbedded system
The invention relates to the field of automated testing, in particular to a PCIE (Peripheral Component Interconnect Express) equipment link connectivity detection system and method. The method comprises the following steps: reading link state information in an attribute file of PCIE equipment to detect link connectivity between the PCIE equipment and downstream equipment, and performing control to realize an action process in which a link state between the PCIE equipment and the downstream equipment becomes disconnected from a stable connection and then recovers; and judging whether link state information values between the PCIE equipment and the downstream equipment before and after an action are equal or not to verify whether a link connection of the PCIE equipment succeeds or fails. Through adoption of the system and the method, dynamically-varying link connectivity of the PCIE equipment can be verified rapidly and accurately, and a testing aim is fulfilled more effectively.
Owner:欧瑞科斯科技产业(集团)有限公司
Electromagnet test piece work air gap adjusting device applied to micro electromagnetic valve
InactiveCN103823195AEasy to install and disassembleSave raw materialsMagnetsMagnetic property measurementsEngineeringScrew thread
The invention provides an electromagnet test piece work air gap adjusting device applied to a micro electromagnetic valve. The device comprises an electromagnet test piece, a work air gap adjusting mechanism and a test bench installation and fixation mechanism. The upper end face of a static iron core abuts against the lower end face of a middle hole of an electromagnet coat. A thrust rod is arranged in a middle small hole of the static iron core through clearance fit. The upper end face of an armature abuts against the lower end face of the thrust rod. A coil cushion block is arranged on a base through clearance fit. The thrust rod is arranged in a small hole of a spring adjustment bolt through clearance fit. The lower end face of the spring adjustment bolt abuts against a pre pressing spring. An armature adjusting bolt is arranged in an inner screw thread hole of the base through screw thread connection. The upper end face of the armature adjusting bolt abuts against the lower end face of the armature. A connecting sleeve is arranged on the electromagnet coat through screw thread connection. A fixation sleeve is arranged on the electromagnet coat through screw thread connection. A light hole on the electromagnet coat is used for the installation on a micro electromagnet test bench.
Owner:ZHEJIANG UNIV
Service test system for extensible authentication protocol (EAP)-subscriber identity module (SIM) user authentication
ActiveCN102932787ATo achieve the purpose of testingSecurity arrangementProtocol for Carrying Authentication for Network AccessClient-side
The invention discloses a service test system for extensible authentication protocol (EAP)-subscriber identity module (SIM) user authentication. The service test system comprises a first virtual machine on which a plurality of progresses for simulating behaviors of a plurality of wireless clients run, a second virtual machine on which a plurality of progresses for simulating behaviors of a plurality of wireless access points run, and a wireless controller for interacting with the second virtual machine through a wired network and exchanging an EAP-SIM authentication message with an authentication server.
Owner:BEIJING HAN NETWORKS TECH CO LTD
Pressure testing device of tappet body
ActiveCN105259037ATo achieve the purpose of testingHigh power transmission efficiencyForce measurementMaterial strength using tensile/compressive forcesTest efficiencyHead pressing
The invention provides a pressure testing device of a tappet body and belongs to the field of detection devices of the tappet bodies. The pressure testing device comprises a base and a dynamometer, wherein the base is provided with a lifting device which is fixedly connected with the dynamometer; the dynamometer is provided with a testing head. The pressure testing device also comprises a fixed sleeve which can be matched with the tappet body, wherein the fixed sleeve is arranged under the testing head; when the lifting device drives the dynamometer to move downwards, the testing head presses the tappet body. The pressure testing device provided by the invention has the advantages that the performance of pressure bearing of the tappet body can be well tested, the structure is simple, the operation is simple and convenient, the testing efficiency is improved, and the price is low, so that the production cost is greatly reduced.
Owner:CHONGQING RUIJIA MACHINERY CO LTD
SPI flash memory test system and method based on FT4222
The invention discloses a SPI flash memory test system and a method based on FT4222. According to the SPI flash memory test method, calling of FT4222 chip equipment in a debugging tool is carried outbased on test statements input by testers, configuration of test conditions is carried out based on SPI NAND Flash modules of different parameters, and at last, loading of the test statements into theFT4222 chip modules is carried out so as to realize test of the SPI NAND Flash module. The method is capable of testing simple SPI NAND Flash reading, writing, and erasuring, and realizing BurnIn test (stability test), and achieving special test purposes via modifying test software program codes.
Owner:NANJING HEYANGTEK CO LTD
New contract policy test method and apparatus
ActiveCN106383812ATo achieve the purpose of testingFinanceNatural language data processingDatabaseManagement system
The invention provides a new contract policy test method and apparatus. In a policy input process, first policy data of a new contract policy is converted into an entity class, second policy data is obtained from a policy management system, the second policy data and the data in the entity class are subjected to comparative check; and whether the two pieces of data are consistent or not; and if the two pieces of data are consistent, it is showed that the data in the entity class is normal, and the data in the entity class is written in the policy management system. Therefore, the purpose of testing the policy data of the new contract policy in the policy input process is achieved.
Owner:TAIKANG LIFE INSURANCE CO LTD
Complete-machine static rigidity detection control system for numerical control machine tool
InactiveCN104458225AFully automatedEasy to operateMachine part testingNumerical controlHydraulic cylinder
The invention discloses a complete-machine static rigidity detection control system for a numerical control machine tool. The complete-machine static rigidity detection control system is mainly composed of a data collecting and movement control system and a three-degree-of-freedom loading executing unit. The data collecting and movement control system is composed of a force sensor, an eddy current displacement sensor, an NI data collecting card, an NI movement control card and a PC. The three-degree-of-freedom loading executing unit is mainly composed of a servo valve, a hydraulic cylinder, a disc spring, a probe and a check rod installed on a main shaft. According to the complete-machine static rigidity detection control system, the loading force is controlled by the computer, signal processing is detected through the sensors, automation of a detection system is achieved to a certain degree, and the complete-machine static rigidity detection control system is reliable and convenient to operate and can be widely applied.
Owner:鼎奇(天津)主轴科技有限公司
System for safety detection of working reliability of mortar projectile series fuze
Owner:ORDNANCE TECH RES INST OF THE GENERAL ARMAMENT DEPT PLA
Test method and test device of core board of distribution network terminal device
InactiveCN104331061AImprove test efficiencyGood for batch testingElectric testing/monitoringFunctional abnormalityTest fixture
Disclosed is a test method of a core board of a distribution network terminal device. The core board at least includes one function module. The test method includes the following steps: providing a test board on which connection circuits corresponding to the function modules on the core board are arranged; inserting the core board into a slot in the test board, wherein the connection circuits form a test circuit with the function modules through the slot; carrying out simulating work test on the function modules on the core board and judging whether the function modules are normal; if the functions of all the function modules are all normal, outputting prompt information that the function of the core board is normal; and if the functions of more than one function module cannot be carried out normally, outputting prompt information that the function of the core board is abnormal and outputting information of function modules, on which faults exist. The test method of the core board of the distribution network terminal device is high in test efficiency and capable of accurately positioning fault areas. A test device of the core board of the distribution network terminal device is also provided.
Owner:AEROSPACE SCI & IND SHENZHEN GROUP
Special-purposed power test wire plug and test method thereof
PendingCN106226565ASimple structureEasy to useMeasurement instrument housingMagnetic tension forceElectrical conductor
The invention relates to a special-purposed power test wire plug and a test method thereof. At present, test cannot satisfy a plug-and-play function when DDC test wires are used, a connecting wire is needed, and the working efficiency is influenced. The plug is characterized by comprising a plug conduction joint, a magnetic ring, a plug bushing, a conductive spring, a plug pedestal and a stop block, the plug pedestal is fixed at one end of the plug bushing, the magnetic ring is fixed at the other end of the plug bushing, the stop block is positioned in the plug bushing, the diameter of the stop block is greater than the internal diameter of the magnetic ring, the plug conduction joint is fixed at the top of the stop block, the conductive spring is placed in the plug bushing, one end of the conductive spring abuts against the plug pedestal, and the other end of the conductive spring abuts against the bottom of the stop block. According to the invention, a fastening screw of a terminal row is connected tightly via a magnetic force, so that a contactor part of the plug is reliably connected with the fastening screw of the terminal row, an internal loop of the terminal row is connected with an external loop which is connected with the plug, and the working efficiency is improved.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD
A device for testing a stress state of an e-shaped elastic strip of a railroad fastener
InactiveCN105527166ATo achieve the purpose of testingWon't hurtMaterial strength using tensile/compressive forcesTransducerData acquisition
A device for testing a stress state of an e-shaped elastic strip of a railroad fastener is disclosed. The device comprises a jack, a data collecting processor, a data displaying screen, a stress holder with which a middle leg of an e-shaped elastic strip to be tested are assembled, an electronic displacement meter used for measuring a vertical displacement of a toe end of the e-shaped elastic strip to be tested and a strain transducer adhered to the surface of the e-shaped elastic strip to be tested. The data collecting processor and the data displaying screen are separately fixed to the stress holder. The jack is disposed at a bottom plate of the stress holder. The top of an ejector rod of the jack is provided with a force transducer propped against the bottom surface of the toe end of the e-shaped elastic strip to be tested. The device can effectively and rapidly test the stress state of the e-shaped elastic strip on site, a testing result is further compared with theoretical analysis results and standards, and the stress state of the e-shaped elastic strip can be evaluated.
Owner:BEIJING JIAOTONG UNIV +1
Multi-communication system and method for realizing various switch test machines
ActiveCN111756600ARealize remote data monitoringRealize transmissionCharacter and pattern recognitionData switching networksControl cellEmbedded system
The invention discloses a multi-communication system and method for realizing various switch test machines, relates to the technical field of switch information exchange, constructs an interactive system comprising a switch equipment layer, a data transmission layer, a data management layer, a data processing layer and an application layer, realizes acquisition, transmission, processing and application of data, and enables various switches of different types to realize remote data monitoring. In the communication process, the multi-communication system adopts a compatible data communication interface, and meets the requirements of various switches. The multi-communication system comprises a compatible data communication interface which further has a data communication protocol conversion function, mutual conversion between different communication protocols can be achieved, and the purpose of being compatible with various switch tests is achieved. According to the multi-communication system, various kinds of different communication are achieved through a signal measurement unit, information switching of different communication modules is achieved through a channel control unit, andcommunication and data interaction of switches of different types are achieved through coordination of a controller, an information equalizer and a communication modulator.
Owner:XIAMEN CHANGJIANG SERVICE NET CO LTD
Server testing method, system and device and computer readable storage medium
PendingCN111176918AImprove test resultsTo achieve the purpose of testingFaulty hardware testing methodsComputer hardwareSoftware engineering
The invention discloses a server test method, system and device and a computer readable storage medium. The method comprises the steps of generating a test random number for testing a target server; determining a target to-be-tested device in the target server based on the test random number; and testing the target to-be-tested device to obtain a test result. According to the server test method provided by the invention, the target to-be-tested device in the target server is determined by means of the generated random number, so that the determined target to-be-tested device has the same random performance as the random number, the purpose of randomly testing the target server is achieved, and the test effect on the server is improved. The server test system and device and the computer readable storage medium provided by the invention also solve the corresponding technical problems.
Owner:SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
Test device
InactiveCN101592709AAchieve positioningTo achieve the purpose of testingCircuit interrupters testingEngineeringTest fixture
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
A code coverage statistics method and device
ActiveCN109542789AMeet the needs of developmentTo achieve the purpose of testingSoftware testing/debuggingCode coverageDevelopment testing
The invention discloses a code coverage statistics method and device. The method comprises the following steps: based on an item to be tested, configuring and obtaining a filtering rule file of code test; carrying out unit test on the item to be tested to obtain an initial code coverage report; filtering statistical data of the initial code coverage report based on the filtering rule file to obtain target statistical data; generating a target code coverage report based on that target statistic. In the invention, the non-core code of the item to be tested can be filtered, Then the reproduced target statistics can better meet the needs of the code development of the project under test. According to the target statistics, the generated target code coverage can provide more accurate referencedata for developers and testers, and then achieve the purpose of testing the core code.
Owner:TAIKANG LIFE INSURANCE CO LTD
Testing device for analyzing moving function of animal limb and footmark
The invention relates to the research field of animal limb movement function and footprint analysis, and discloses a test device for analyzing the animal limb movement function and the footprint. The test device comprises tracks and soft ceramic layers applied on the bottom plates of the tracks, wherein the tracks consist of a straight flat segment, a turning segment, an upslope segment, a downslope segment and an upper step or lower step segment; lateral plates are arranged on both sides of the tracks; the lateral plates and the bottom plates are detachable; and particularly, the lateral plates can be made of one-way transparent glass to facilitate observation or photographing.
Owner:许汉鹏
Novel withstand voltage insulation testing device for crystalline silicon photovoltaic module
InactiveCN103698667ATo achieve the purpose of testingTesting dielectric strengthWater leakageCrystalline silicon
The invention relates to a testing device in the photovoltaic field, in particular to a novel withstand voltage insulation testing device for a crystalline silicon photovoltaic module. The novel withstand voltage insulation testing device for the crystalline silicon photovoltaic module comprises a withstand voltage insulation tester, a fixture, connector matching plugs and connecting wires and is characterized in that the fixture adopts a mode of combining a cylindrical chuck and a platy chuck and is connected to the cathode end of the withstand voltage insulation tester through the connecting wire; the connector matching plugs adopt double plugs matched with the anode and cathode connecting ends of a module connecting wire and are connected to the anode end of the withstand voltage insulation tester through the connecting wires; the diameter of the cylindrical chuck of the fixture is equal to those of a grounding hole and a water leakage hole of the photovoltaic module; when withstand voltage insulation testing is carried out by the device, the testing aim can be fulfilled without carrying out short-circuit processing on the connecting wire of the photovoltaic module, or stripping off wire skin or polishing an aluminium frame.
Owner:燕飞
Elevator counterweight guide rail guidance stroke measurement device based on sensor technology
ActiveCN111362088AHigh measurement accuracyImprove the level of inspection scienceElevatorsLaser rangingDistance sensors
The invention discloses an elevator counterweight guide rail guidance stroke measurement device based on the sensor technology. The device comprises a measurement robot and a remote control box. The distance between the machine body of the measurement robot and a guidance surface of a guide rail is measured in real time through a Hall sensor on the robot. The distance between the top of the counterweight guide rail and an elevator counterweight side oil cup is measured through a laser distance sensor. Then the guide rail guidance stroke of when a buffer is completely compressed by an elevatoris measured. According to the elevator counterweight guide rail guidance stroke measurement device based on the sensor technology, a method is high in measurement accuracy and quick in measurement, the problem that it is difficult to measure the guide rail guidance stroke is solved, the measurement accuracy of the guide rail guidance stroke is greatly improved, the checking science level of a checking mechanism is improved as well, and powerful technology support is provided for guaranteeing elevator operation security.
Owner:SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE
Plate impact test device
The invention discloses a plate impact testing device. Double parallel limiting rods are vertically fixed to one side of a base, a transmission shaft vertically fixed to the upper portion of the baseis located between the double parallel limiting rods, the transmission shaft is in transmission connection with a driving mechanism and can rotate, and a sliding block is in threaded connection with the outer side of the transmission shaft. The two sides of each sliding block are arranged on the outer sides of the corresponding limiting rods in a sleeving mode through guide holes, a liftable horizontal rod is fixed to the inward side wall of each sliding block, the outer side of each liftable horizontal rod is sleeved with a horizontal adjusting support capable of horizontally sliding and being locked, and a magnetic attraction clamp is fixed to the lower end of each horizontal adjusting support. An impact head clamping assembly is attracted to the lower portion of the magnetic attractionclamp through electromagnetism. According to the invention, multiple drop hammer impact tests of different impact hammers can be realized, and the auxiliary guide mechanism for the impact head clamping assembly is arranged for preventing the problem that the impact hammers are easy to deflect due to the possible influence of lateral force and friction force in the process of separating each impactcone from the magnetic attraction fixture.
Owner:HENAN UNIVERSITY +1
High-potential board card testing device and method of thyristor converter valve
InactiveCN109613418ARealize full function detectionTo achieve the purpose of testingAutomated test systemsEngineeringExcitation signal
The invention discloses a high-potential board card testing device and method of a thyristor converter valve. The high-potential board card testing device comprises one or more thyristor testing toolsof high-potential board cards, a waveform generation unit, a waveform collecting unit, a man-machine interaction unit and a control unit; the man-machine interaction unit is used for receiving a board card selecting instruction; the control unit is used for controlling the waveform generation unit to generate excitation signals corresponding to the to-be-tested high-potential board cards according to the board card selecting instruction and controlling the thyristor testing tools corresponding to the to-be-tested high-potential board cards to be connected with the to-be-tested high-potentialboard cards to test the to-be-tested high-potential board cards; the waveform collecting unit is used for collecting various signal waveforms in the testing process of the to-be-tested high-potentialboard cards; and the control unit is further used for analyzing and processing the various signal waveforms in the testing process of the to-be-tested high-potential board cards to obtain testing results and controlling the man-machine interaction unit to display the testing results. The purpose of testing the various types of high-potential board cards can be achieved.
Owner:XIDIAN POWER RECTIFIER XIAN +1
Router test method and device
InactiveCN108768764AReduce development costsImprove test efficiencyData switching networksTesting softwareSoftware engineering
The invention discloses a router test method and device. The method comprises the following steps: S100, receives a test instruction, and starting test software according to the received test instruction; S200, acquiring a target language of the router to be tested, calling a corresponding language configuration file according to the acquired target language, and configuring the test software according to the called target language configuration file; and S300, running the configured test software and testing the router. Through setting up of a multi-language configuration file, the test software can call the corresponding language configuration file according to the target language of the router to be tested, so that the purpose of testing a multi-language router with the same test software can be realized without the need of developing multi-language testing software, and the development cost can be saved.
Owner:SICHUAN FEIXUN INFORMATION TECH CO LTD
One-stop electrical logging tool for composite battery busbar multifunctional testing
PendingCN110187147AAvoid fraudulent situationsAvoid compromising accuracyElectrical measurement instrument detailsElectrical testingElectricityLeveling mechanism
The invention relates to a one-stop electrical logging tool for composite battery busbar multifunctional testing. The one-stop electrical logging tool for composite battery busbar multifunctional testing comprises a base, positioning racks, a bracket, a driving rod, a leveling mechanism, and a connector; the positioning racks and the bracket are arranged on the base; the driving rod is arranged onthe bracket, and the bottom is connected with the leveling mechanism; the driving rod drives the levelling mechanism to reciprocate up and down; the positioning racks are fixed on the base, and located below the levelling mechanism; the connector is arranged on the base, and located between two positioning racks; the manual operation is avoided, the production efficiency is improved, the conditions that the job indication operation is tedious due to the manual operation and the data fraud occurs since the traditional measurement data is manually recorded by the personnel can be avoided.
Owner:广州安博新能源科技有限公司
High-frequency transformer common-mode noise and conduction radiation testing method
InactiveCN107677897AGuarantee quality and safetyGuarantee the safety of useNoise figure or signal-to-noise ratio measurementMeasuring interference from external sourcesDistribution transformerEngineering
The invention discloses a high-frequency transformer common-mode noise and conduction radiation testing method. The method comprises the steps of preparing a line connecting jig which is well connected with a signal generator and two channels of an oscilloscope in advance, wherein connection can be quickly formed in testing by only inserting a transformer under test into the line connecting jig, then injecting signals through the signal generator, erecting a pen by using the first channel of the oscilloscope to monitor the signals so as to confirm whether an input reference signal is correct or not, then erecting a pen by using the second channel of the oscilloscope to monitor a coupling voltage VPP value so as to serve as a test result for voltage judgment, and finally comparing the coupling voltage monitored by the second channel of the oscilloscope with a qualified product / unqualified product data reference in a database so as to judge whether the tested transformer is a qualified product or not. Coupling voltage measurement is performed by adopting the signal generator and the oscilloscope, so that the method effectively considers influences of potential distribution of coil windings of the transformer, the winding structure mode and a shielding layer copper foil, and thus the measurement accuracy is improved.
Owner:DONGGUAN JIALONG HAIJIE ELECTRONICS TECH CO LTD
A kind of sound-proof sound box and the test device using the sound-proof sound box and its test method
ActiveCN104349263BEliminate the effects ofTo achieve the purpose of testingElectrical apparatusProduction lineTotal harmonic distortion
Owner:GOERTEK INC
Thermal management system test method and platform, computer equipment and readable storage medium
ActiveCN113157015AAvoid missingTo achieve the purpose of testingTemperatue controlThermodynamicsHeat management
The invention discloses a new energy automobile thermal management system test method. The method comprises the following steps: acquiring a first temperature threshold and a second temperature threshold of a to-be-tested object; partitioning the temperature range of the to-be-measured object according to the first temperature threshold value and the second temperature threshold value; respectively selecting a simulation temperature in each partition; constructing a temperature change curve according to the partition where each simulation temperature is located; and detecting the thermal management function of the whole vehicle under the condition of the temperature change curve. The invention further discloses a new energy automobile thermal management system test platform, computer equipment and a computer readable storage medium. By adopting the device and the method, the continuously changing temperature can be simulated through the temperature change curve, so that the test purpose of full temperature coverage is achieved.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD
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