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Automatic traversal test circuit, automatic traversal test device, interrupt request test method and interrupt request test system
PendingCN119396116Areduce mistakesEnsure consistencyElectric testing/monitoringMultiplexingMultiplexer
The invention discloses an automatic traversal test circuit, an automatic traversal test device, an interrupt request test method and an interrupt request test system, and the automatic traversal test circuit comprises a multiplexer which comprises N test pins, and the total number N of the test pins is the same as the number of to-be-tested interfaces of a to-be-tested chip; the chip to be tested and the multiplexer form multi-channel connection; the multiplexer further comprises at least one first control interface and a selection input end; the truth value state of the first control interface is changed under the action of the first control instruction, so that the selection input end is controlled to select a path corresponding to the target test pin to be conducted. According to the invention, the multichannel multiplexer analog switch is added in the test circuit to replace the function of manually plugging and switching pins. The multi-interface interrupt request automatic test of the chip to be tested can be realized.
Owner:MINDMOTION MICROELECTRONICS CO LTD
Method for testing and calibrating sensitivity directivity of Fabry-Perot sensor in transformer oil
ActiveCN119619758Agood application effectEfficient testingSubsonic/sonic/ultrasonic wave measurementTesting using acoustic measurementsSound sourcesEngineering
The invention relates to a method for testing and calibrating sensitivity directivity of a Fabry-Perot sensor in transformer oil. According to the method, sensitivity response values under different conditions are obtained by adjusting the distance and the angle between the Fabry-Perot sensor and a sound source. The testing step comprises the steps of setting an initial frequency and a spacing, adjusting an angle and a distance, recording response values under various conditions, and drawing a sensor sensitivity graph through normalization calculation. According to the calibration method, the standard microphone is adopted for comparison test, and the attenuation coefficient is combined for calibration, so that the sound pressure sensitivity accuracy of the Fabry-Perot sensor is ensured. The invention provides an efficient and reliable test and calibration scheme, the application effect of the Fabry-Perot sensor in the transformer oil can be remarkably improved, the accuracy is high, and the method is suitable for a complex environment.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI +1
Tool for testing working capability of vehicle activated carbon powder
PendingCN119643354Atest accurateTested and reliableWeighing by absorbing componentActivated charcoal powderActivated carbon
The invention discloses a tool for testing the working capability of vehicle activated carbon powder. The tool comprises a hollow tool shell, the tool shell comprises a front shell and a rear shell which are distributed left and right and connected with each other; a gas inlet, a gas rectifier, gas inlet filter cloth, a carbon powder section, gas outlet filter cloth, a spring bracket, a spring and a gas outlet are sequentially arranged in an inner cavity of the tool shell from left to right; and the air inlet and the air outlet are respectively communicated with an air outlet pipeline and an air inlet pipeline of external test equipment. The tool for testing the working capacity of the vehicle activated carbon powder is used for testing the working capacity of the vehicle activated carbon powder, is scientific in design, can accurately and reliably test the adsorption capacity of the vehicle activated carbon powder to test gas, and ensures the test precision.
Owner:CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1
High-resilience rubber key testing device
ActiveCN222336743Utest stableTested and reliableMachine part testingKey pressingStructural engineering
The utility model provides a high resilience rubber button test device, relates to the button test technical field, including testboard, carrying plate and button test upper mounting plate, the right side surface of testboard is provided with the control panel, and the left and right parts of testboard upper side are both rotatingly connected with two sets of screw rod, the middle part of the screw rod is movably connected with a key test upper mounting plate, the left and right parts of the key test upper mounting plate are both provided with a plurality of groups of stroke limiting telescopic cylinders, the lower ends of the stroke limiting telescopic cylinders are fixed on the key test lower mounting plate, and the middle part of the upper end surface of the test table is movably provided with a carrying plate; and a keyboard is clamped on the carrying plate. According to the utility model, the keyboard can be conveniently and rapidly conveyed in and out, a single-row multi-group pressing head on the lower end face of the key test lower mounting plate can be used for simultaneous pressing test, the operation is faster, more stable and reliable, the number of pressing test heads can be conveniently and flexibly adjusted, and the operation is more convenient and practical.
Owner:CHANGZHOU WENXIN ELECTRIC FITTINGS CO LTD
A high temperature resistant flexible material performance test device
ActiveCN224594312UTested and reliableFull coverage of test heat flow values
The utility model provides a kind of high-temperature-resistant flexible material performance test device, the device includes support frame, test component, burn hot flow component and pressure simulation component, test component is installed on support frame, burn hot flow component is connected in support frame below test component;Test component includes test piece mounting plate and high-temperature-resistant flexible material installed in test piece mounting plate, test piece mounting plate is connected on first support beam and can be moved to set position along first support beam;Burn hot flow component is connected on first support beam, and it is aligned high-temperature-resistant flexible material in test process;Pressure simulation component is arranged above high-temperature-resistant flexible material and can contact or separate with high-temperature-resistant flexible material.In high-temperature-resistant flexible material performance test device, through burn hot flow component and pressure simulation component, the simulation of heat / environment of force that high-temperature-resistant flexible material bears is realized simultaneously, so as to be able to simultaneously examine the heat insulation performance, bearing capacity and anti-scour performance of flexible heat-proof skirt.
Owner:北京天兵科技有限公司
Wireless charging test circuit, electronic equipment and test method
PendingCN119511025AImprove test efficiencyReduce testing costsCircuit arrangementsTransmissionTest efficiencyControl circuit
The embodiment of the invention relates to the technical field of wireless charging, and discloses a wireless charging test circuit, electronic equipment and a test method. The wireless charging test circuit comprises a wireless charging receiving chip and a current loading circuit, the wireless charging receiving chip comprises a rectification circuit, a control circuit and a signal demodulation circuit, and the control circuit responds to a result of matching a reference mode identifier with a preset target mode identifier. And configuring the rectification circuit to enter a target rectification mode and the current loading circuit to enter a target loading mode, and generating a rectification test result according to the rectification output information and the power loading information. According to the embodiment of the invention, a demodulation test circuit and a rectification test circuit do not need to be additionally built, and the test of the signal demodulation circuit and the rectification circuit can be completed in the rectification mode configuration process, so that the test efficiency of the signal demodulation circuit can be improved, and the test cost is reduced. And whether the rectifying circuit can normally work in the target rectifying mode or not can be reliably tested.
Owner:SHENZHEN INJOINIC TECH
Device for detecting oil level of transformer oil tank
PendingCN119245768ATested and reliablemeet operating conditionsTransformers testingMachines/enginesTransformer oilUltrasound wave
The invention provides a transformer oil tank oil level detection device which comprises a first ultrasonic sensor, a second ultrasonic sensor and a controller. The first ultrasonic sensor is arranged at the top end of the transformer oil tank, the second ultrasonic sensor is arranged at the bottom end of the transformer oil tank, and the position between the first ultrasonic sensor and the second ultrasonic sensor is symmetrical about the horizontal axis of the transformer oil tank; the first ultrasonic sensor and the second ultrasonic sensor are electrically connected with the controller. And the controller is used for acquiring the ultrasonic signals transmitted and received by the first ultrasonic sensor and the second ultrasonic sensor, determining the height of a medium in the transformer oil tank according to the ultrasonic signals, and outputting the height of the medium as an oil level value. The actual height of the oil level of the transformer is accurately and reliably tested, so that whether the oil level meets the operation condition of the transformer or not is judged.
Owner:SHENZHEN POWER SUPPLY BUREAU
Kit for urine testing
PendingEP4411374A4Tested and reliableImprove reliabilityMaterial analysis by observing effect on chemical indicatorWithdrawing sample devices
A urine test kit includes a container configured to contain urine; a paper strip guide including a groove and a paper strip which is formed in the groove and whose color is changed by the urine; and an air pump configured to enable the urine to flow to the paper strip. Wherein the paper strip guide is attached to one surface of the container to form a flow path between the groove in the paper strip guide and the one surface of the container.
Owner:DNC BIOTECHNOLOGY INC
Waterfowl Test System
ActiveCN119045084BSimple structurereduce frequencyNear-field transmissionWireless architecture usageWater birdTest analysis
The present application discloses a water bird testing system, which relates to the field of marine exploration. The system includes: a testing device, which is used to obtain at least one pre-selected water bird to be tested and the corresponding test items, send a water bird performance test command to a communication component according to the test items corresponding to at least one water bird to be tested, test and analyze the demodulated data, and generate a test result; a communication component, which is used to modulate the water bird performance test command, send the modulated signal after the modulation processing to the water bird to be tested, demodulate the water bird signal, and send the demodulated data after the demodulation processing to the testing device; at least one water bird to be tested, which is used to perform a test according to the modulated signal, obtain a water bird signal, and send the water bird signal to the communication component. The testing device of the present application can communicate with water birds anytime and anywhere, greatly reducing the frequency and time of engineers carrying water birds, breaking through the spatial limitations of water bird testing, and the test is stable and reliable, which improves work efficiency.
Owner:CHINA OILFIELD SERVICES LTD
High-speed radio frequency performance testing device of optical transceiver
The utility model discloses a high-speed radio frequency performance testing device of an optical transceiver, which comprises a hold-down mechanism and a testing mechanism, the testing mechanism comprises a PCB, an FPC positioning block, an anisotropic conductive film and a Pogo pin probe, one side of the PCB is provided with the FPC positioning block, and the FPC positioning block is provided with a positioning groove corresponding to an FPC of the optical transceiver; a metal pattern layer is arranged on the PCB corresponding to a golden finger at the tail end of the FPC, and an anisotropic conductive film covers the metal pattern layer; the PCB is provided with a Pogo pin probe corresponding to the FPC bonding pad, and the Pogo pin probe is used for achieving connection between the FPC bonding pad and a direct current wire. The hold-down mechanism comprises a lifting mechanism and a pressure head, and the lifting mechanism is used for driving the pressure head to hold down the FPC of the optical transceiver inside the positioning groove. According to the utility model, the radio frequency performance test of the optical transceiver with the FPC is realized, and the reliability is better.
Owner:CHENGDU INSIJIA SEMICON TECH CO LTD
Flexible multifunctional detection bench
The application discloses a kind of flexible multifunctional detection rack, including rack main body, the upper end of rack main body is positioned and installed with pedestal, the front end of pedestal is provided with first display and second display, test table is installed on rack main body, jig quick-change positioning device is arranged in the middle of test table, printer is installed in the side of test table, controller is installed in the front end of test table, flexible electrical control system is positioned in the inside of rack main body, cabinet is arranged in the inside of rack main body in front position, ammeter, voltmeter and industrial computer are arranged in the inside of cabinet.The flexible multifunctional detection rack can accurately and reliably test various products produced by it to ensure the accuracy and stability of the products in various actual application scenarios, which not only can improve the product quality and market competitiveness of enterprises, but also can provide more accurate and reliable products for users.
Owner:SUZHOU HANLIN AUTOMOBILE TECH CO LTD
Testing device for wind power bearing
ActiveCN119574113AImprove lifting stabilityreduce the risk of accidentsMachine bearings testingWind energy generationClassical mechanicsControl theory
The invention relates to the technical field of wind power bearing testing, in particular to a testing device of a wind power bearing. The device comprises a device frame body, the device frame body comprises a vertical frame and a base, a supporting mechanism is movably arranged at the top of the base, one side, close to the vertical frame, of the supporting mechanism is connected with a displacement mechanism, and a fixing plate capable of driving a wind power bearing body to test is arranged in the fixing plate. According to the invention, when the wind power bearing body is driven by the testing mechanism to swing, the inner ring and the outer ring in the wind power bearing body can move relatively, so that the internal lubricity of the wind power bearing body is detected and tested, and in the swinging process of the wind power bearing body, the internal lubricity of the wind power bearing body is detected. The surface of the wind power bearing body can be subjected to fitting friction with the fitting arms of the clamping arm assemblies, so that the effect of testing the friction performance of the surface of the wind power bearing body is achieved, the testing time is shortened, the testing cost is reduced, and the testing comprehensiveness and accuracy are improved.
Owner:LUOYANG INST OF SCI & TECH
Ultra-space-saving pressure-resistant unit tooling
The utility model relates to a kind of super space-saving pressure-resistant unit tooling, including the upper end insulator, multiple middle insulators and lower end insulator sequentially arranged from top to bottom, the upper end insulator is connected with its adjacent middle insulator by front end cylinder, and the contact upper end of upper end insulator is equipped with long conductor, and the contact of upper end insulator is connected with the contact of its adjacent middle insulator by long conductive spring;The lower end insulator is connected with its adjacent middle insulator, and the contact of adjacent two middle insulators is connected with unit conductive spring by unit cylinder between the lower end insulator and its adjacent middle insulator;The bottom of lower end insulator is connected with end cylinder, and inflation port is equipped on the front end cylinder and end cylinder.The utility model is suitable for the pressure-resistant, partial discharge test of epoxy pouring insulator in space limited environment, can be super space-saving, improve test efficiency.
Owner:SHANDONG TAIKAI ELECTRIC APP INSULATION
Temperature resistance testing device for polyimide film
ActiveCN222337088UAdjustable spacingadjustable distanceMaterial thermal analysisThermodynamicsChemistry
The utility model discloses a polyimide film temperature resistance testing device, which belongs to the technical field of polyimide films and comprises a transverse temperature measuring box, and U-shaped heating pipes are arranged at the top end and the bottom end in the transverse temperature measuring box. An adjusting mechanism used for adjusting the distance between the two U-shaped heating pipes is arranged in the transverse temperature measuring box. A rectangular fixing column is fixed to one end in the transverse temperature measuring box, a plurality of rotatable circular illuminating lamps are arranged in the rectangular fixing column, through a series of design, the distance between the two U-shaped heating pipes can be adjusted, the distance between the film and the transverse temperature measuring box can be adjusted, and then the temperature change of the surface of the film can be adjusted; and the rotatable circular illuminating lamp is arranged to simulate sunlight irradiation at different angles and irradiation intensity, so that the test is more reliable.
Owner:JIANGYIN YUNDA ELECTRONICS NEW MATERIAL
Right collision wheel drop wire harness group testing device
ActiveCN222365080Uwork lessTested and reliableElectrical testingElectrical resistance and conductanceElectrical connection
The utility model discloses a right collision wheel drop wire harness group testing device comprising a PCB which comprises a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin. The first pin is grounded; the second pin is electrically connected with the switch rocker after being connected in series with a resistor R1, and is electrically connected with the power supply after being connected in series with a resistor R2; the third pin is electrically connected with the negative electrode of the receiving optocoupler and is grounded; the fourth pin is electrically connected with the positive electrode of the receiving optocoupler, is electrically connected with the collision rocker after being connected with a resistor R3 in series, and is electrically connected with the power supply after being connected with a resistor R4 in series; the fifth pin is electrically connected with the negative electrode of the transmitting optocoupler and is grounded; and the sixth pin is electrically connected with the positive electrode of the transmitting optocoupler, and is electrically connected with the power supply after being connected in series with a resistor R5. According to the utility model, the switch rocking bar and the collision rocking bar are adopted, normal work in a collision optocoupler and wheel fall micro-motion state is ensured, the on-off of the LED lamp is controlled through output high-low signals, and the performance of the wire harness can be intuitively and conveniently known.
Owner:DONGGUAN RUISHENG WIRE CABLE CO LTD
Solid state control box test circuit and test device
PendingCN119322257AIncrease productivitydesign scienceCircuit interrupters testingControl engineeringAlternating current
The invention discloses a solid-state control box test circuit and a test device. The solid-state control box test circuit comprises an alternating current power supply AC; the alternating current power supply AC is connected with the circuit breaker K7; the direct-current power supply DC is respectively connected with the solid-state control box and the button switches K1-K6; the circuit breaker K7 is connected with the solid-state control box; the button switches K1-K6 are connected with the solid-state control box; the relay KM1 is connected with the solid-state control box and the indicating lamp H1 respectively; the relay KM2 is respectively connected with the solid-state control box and the indicating lamp H2; the relay KM3 is respectively connected with the solid-state control box and the indicating lamp H3; the indicating lamps H1-H3 are respectively connected with the solid state control box; and the electromagnetic valve DCF is connected with the solid state control box. The device is scientific in design, can efficiently and reliably test the functions of the solid-state control box, guarantees the test efficiency, and improves the overall production efficiency of the solid-state control box.
Owner:TIANJIN RAILWAY SIGNAL CO LTD
Chip storage area testing methods, apparatus, equipment, and computer storage media
This application proposes a chip storage area testing method, apparatus, device, and computer storage medium. The chip storage area testing method includes: obtaining the address of a target area in the DRAM chip under test used to store a target test program; loading an initial test program into the SRAM chip in the test system SoC, and calling the initial test program to test the target area according to the address; if the target area test passes, testing the areas of the DRAM chip under test other than the target area according to the target test program and the target area. Through the above chip storage area testing method, the detection blind spot of the DRAM chip under test is eliminated, and reliable testing of the entire physical memory space, i.e., all storage areas, of the DRAM chip under test is achieved.
Owner:深圳市因梦晶凯测试技术有限公司
Test bench electrical connection structure for reducing coupling effect of weak force test environment
The application discloses a test-bed electrical connection structure for reducing coupling effect of weak force test environment, which comprises a frame, a frame fixed base plate component fixed on the frame, a rotary fixed base plate component arranged below the frame fixed base plate component, and a rotating shaft connecting the frame fixed base plate component and the rotary fixed base plate component. A pendulum body is fixed on the rotary fixed base plate component, and a measured propeller is arranged at the bottom end of the pendulum body. The application weakens the influence of the conducting wire, the microwave conducting wire and the air pipe on the rigidity and temperature coefficient of the test bed.
Owner:INNOVATION ACAD FOR PRECISION MEASUREMENT SCI & TECH CAS
SAR satellite vacuum thermal test method based on phased array feed system
The present application relates to a kind of SAR satellite vacuum thermal test method based on phased array feed system, first, passive reflector antenna is removed and is verified separately, realizes system decoupling.Phased array feed thermal test system and satellite body thermal test system are constructed, and two are physically isolated in same vacuum environment simulator by cold plate, to realize the parallel test of load and platform.Based on the size of phased array feed, the size of wave-absorbing box containing silicon carbide sharp cone wave-absorbing material is determined;Based on the size of satellite body, the size of its infrared cage is determined;Further, the size of cold plate is determined and appropriate vacuum tank is selected;Finally, the synchronous test of two systems is realized through cable connection.The present application significantly shortens the test cycle, reduces cost and risk through parallel test architecture, and ensures the authenticity and effectiveness of the test through accurate size chain design and independent thermal environment control, providing an efficient and reliable solution for vacuum thermal test of similar complex satellites.
Owner:AEROSPACE DONGFANGHONG SATELLITE
Multi-storage card testing method, device, computer equipment and storage medium
The present application belongs to the field of storage technology, and relates to a method, device, computer equipment and storage medium for testing multiple storage cards, the method comprising the steps of: obtaining a write command for writing data and the numbers of multiple storage cards into multiple storage cards, the write command carrying the data and the numbers; parsing the write command, obtaining the data and the numbers, and writing the data into the multiple storage cards according to the numbers; reading the data from every two multiple storage cards with different numbers, putting the read data into a comparison circuit for XOR operation, and judging whether the multiple storage cards are normal according to the XOR operation results. By adopting the present application, by numbering multiple storage cards, data can be written into multiple storage cards at the same time, without relying on manpower, and the test of storage cards can be automatically performed, which saves costs and can improve test efficiency. The test is reliable and easy to implement, and can be generally applied to the test of storage cards.
Owner:HOSIN GLOBAL ELECTRONICS CO LTD
A method and device for automatically testing and controlling a Beidou navigation receiver
The application provides a Beidou navigation receiver automatic test control method and device, and relates to the technical field of navigation test. Through automatic generation of a test template, control signal generation and distribution, automatic data acquisition, performance index calculation and report generation, efficient and reliable testing of the Beidou navigation receiver is realized, and the test efficiency is significantly improved, manual operation errors are reduced, test reliability and standardization are enhanced.
Owner:CHANGSHA HAIGE BEIDOU INFORMATION TECH CO LTD
Water injection pump wire harness testing device
ActiveCN222461573UTested and reliableSimple structureElectrical testingMeasurement leads/probesCapacitanceElectrical resistance and conductance
The utility model discloses a water injection pump wire harness testing device, which comprises a Hall chip U1, the Hall chip U1 comprises a VDD pin, an OUTPUT pin and a GND pin, the VDD pin is electrically connected with an external VDD, the VDD pin is connected in series with a capacitor C and then is grounded, the VDD pin is connected in series with a resistor R and then is electrically connected with the OUTPUT pin, the OUTPUT pin is externally connected with an MOS tube, and the GND pin is grounded. Based on the Hall principle, the LED lamp is controlled to be turned on and off through the output high-low signals, the performance of the water injection pump wire harness is visually and conveniently obtained, the test is stable and reliable, the structure is simple, and the device cost is reduced.
Owner:DONGGUAN RUISHENG WIRE CABLE CO LTD
A server performance testing method, device and storage medium
ActiveCN118885367Bquick testTested and reliableHardware monitoringEnergy efficient computingSystem testingSimulation
The present invention belongs to the technical field of server testing, and specifically discloses a server performance testing method, device and storage medium, which extracts hardware test configuration set and system test configuration set by retrieving the test configuration package corresponding to the target server test number, and then uses the hardware test configuration set to perform CPU, memory and hard disk benchmark tests under different test environments, and uses the system test configuration set to perform system load test on the target server, and then calculates the benchmark index score and stability index score of the target server according to the corresponding benchmark test results, calculates the load index score according to the corresponding load test results, and finally summarizes the performance test evaluation results of the target server for output. The present invention can efficiently and accurately evaluate the basic hardware performance, usage stability and load capacity of the server, and provide a reference basis for selecting a suitable server or optimizing server performance.
Owner:BEIJING ZHENHONG RIO TINTO ELECTRONIC TECH CO LTD
Training method of integrated test case model, and test case generation method and system
PendingCN119415386Areduce time consumptionlow costSoftware testing/debuggingMachine learningIntegration testingData mining
The invention discloses a training method of an integrated test case model, and a test case generation method and system. The method comprises the following steps: acquiring associated information of a target system and existing original test data of the target system; according to the associated information, establishing an integrated test case model corresponding to the target system; according to the original test data, generating prediction test data through an integrated test case model; executing the prediction test data in a test environment corresponding to the target system to obtain a test result corresponding to the prediction test data; and determining a training loss value according to a test result, and updating parameters of the integrated test case model based on the loss value to obtain a trained integrated test case model. According to the method and the device, the generation efficiency and the quality of the generated test case can be improved, so that comprehensive and reliable testing of the software is facilitated, and efficient research and development of the software are facilitated. The method can be widely applied to the technical field of artificial intelligence.
Owner:CHINA TELECOM ARTIFICIAL INTELLIGENCE TECHNOLOGY (BEIJING) CO LTD
A test tool for voltage breakdown strength of insulating materials
This utility model relates to a voltage breakdown strength testing fixture for insulating materials, comprising an insulating container, a fixed metal electrode, and a movable metal electrode, the fixed and movable metal electrodes being coaxial. Two opposing slots are formed on the inner wall of the insulating container, with the plane of the two slots located between the fixed and movable metal electrodes. The test sample placed in the slot is positioned between the fixed and movable metal electrodes and is in contact with both electrodes. When the bottom of the slot supports the test sample, the axis of the movable metal electrode passes through the center of the test sample. This utility model provides space for the test sample through the slots, and by utilizing the relative positional relationship between the slots and the movable and fixed metal electrodes, it ensures that after the test sample is placed in the slot, the axes of the movable and fixed metal electrodes pass through the center of the test sample, thereby ensuring stable and reliable testing.
Owner:SHANDONG TAIKAI ELECTRIC APP INSULATION
Waveguide test fixture
ActiveCN224203240USimple structureTested and reliableWork holdersMeasurement instrument housingElectrical connectorTest fixture
The utility model discloses a waveguide test fixture, which comprises a lower mounting bottom plate, a lower cavity, an upper cavity, a PCB (printed circuit board), a micro rectangular electric connector and an adapter block, wherein the lower cavity, the upper cavity and the PCB are fixed on the lower mounting bottom plate and are sequentially distributed from bottom to top; the micro rectangular electric connector is fixed on the lower cavity and penetrates through the upper cavity; the high-frequency radio-frequency coaxial connector is fixed on the switching block and is electrically connected with the PCB; the micro rectangular electric connector and the high-frequency radio-frequency coaxial connector are electrically connected with a to-be-tested element; and the micro rectangular electric connector is connected with the PCB. According to the scheme, the waveguide testing device has the advantages of being simple in structure, reliable in testing and the like, and has high practical value and popularization value in the technical field of waveguide testing.
Owner:CHENGDU GUOQIANG YUXING ELECTRONIC TECH CO LTD
Compressor assembly, air conditioner and control method
PendingCN119665332AImprove dehumidification efficiencyImprove cooling effectMechanical apparatusCondensate preventionFrequency changerThermodynamics
The invention provides a compressor assembly, an air conditioner and a control method.The compressor assembly comprises a power device box body, a frequency converter box body and a semiconductor refrigeration part, and the semiconductor refrigeration part is arranged in the frequency converter box body so as to cool and dehumidify air in the frequency converter box body; a condensation flow channel is further arranged in the frequency converter box body, the condensation flow channel can receive condensate water generated by refrigeration on the semiconductor refrigeration component, and the condensation flow channel can further enter the power device box body to dissipate heat of components in the power device box body. According to the frequency converter, condensation in the frequency converter can be solved, meanwhile, auxiliary heat dissipation can be conducted on the power module, and the energy efficiency is improved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Throttling device for combustion chamber pressure regulation and throttling test method
ActiveCN118936899Bachieve protectionEasy to manufactureInternal-combustion engine testingCold airCombustion chamber
The present invention belongs to the field of engine combustion chamber and burner testing, and discloses a throttling device for combustion chamber pressure regulation and a throttling test method. The throttling device realizes stepless regulation of the combustion chamber pressure without an actuating structure by supplying air with a variable flow rate; cold air is used to form an air film to block a part of the high-temperature combustion gas, and combined with water cooling, long-term protection under high-temperature combustion gas working medium is realized together. The throttling device has no actuator, is easy to manufacture, reliable in testing, and can adapt to long-term operation of high-temperature combustion gas. The throttling test method includes installing the throttling device; connecting the air source and the regulating valve; calculating the air flow corresponding to the expected combustion chamber pressure; starting the combustion chamber; supplying air and adjusting the air flow according to the combustion chamber pressure. The throttling test method adjusts the combustion chamber pressure by supplying air, and realizes stepless regulation of the combustion chamber working pressure without an actuating mechanism by controlling the air flow to accurately match the change requirements of the combustion chamber working pressure.
Owner:CHINA AERODYNAMICS RES AND DEV CENT ULTRA-HIGH SPEED AERODYNAMICS RES INST
Long-term performance testing method, device, readable storage medium and electronic device
Owner:CHENGDU BIWIN STORAGE TECHNOLOGY CO LTD
Universal automobile mechanical steering gear assembly detection equipment
InactiveCN119533972ATested and reliableMaterial strength using tensile/compressive forcesVehicle steering/rolling behaviourElectric machineryStructural engineering
The invention relates to the technical field of mechanical steering gear assembly testing, in particular to universal automobile mechanical steering gear assembly detection equipment which comprises a steering gear assembly and a detection unit, the detection unit comprises a mounting base, a fixing assembly is mounted on the top side of the mounting base, a positioning assembly is mounted on the outer wall of the mounting base, and the steering gear assembly is mounted on the positioning assembly. A positioning assembly is installed on the top of the mounting base, a driving assembly is installed on the top of the mounting base, a vibration testing assembly is installed on the top of the mounting base, a bending injection molding assembly and a bending pushing assembly installed on the positioning assembly are installed on the inner wall of the mounting base, and vibration and pressure testing of the steering gear assembly can be completed at the same time through rotation of a driving motor. The device can simulate an environment in which a tie rod of a steering gear assembly is stressed when an automobile vibrates when the automobile is ignited, so that the steering gear assembly is tested more truly and reliably.
Owner:南通通远机械有限公司