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3130 results about "Test board" patented technology

Definition of test board. : a paperboard for shipping containers that must test up to specific requirements (as for resistance to puncture)

SRAM type FPGA single particle irradiation test system and method

ActiveCN103744014ARefresh is convenient and reliableReliably flip dataElectrical testingCommunication interfacePower flow
The invention provides an SRAM type FPGA single particle irradiation test system and method. The test system comprises a host computer, a current monitoring acquisition plate and a test plate. The current monitoring acquisition plate comprises a current monitoring acquisition FPGA, a current acquisition unit, a power supply module and a first communication interface; the test plate comprises a control processing FPGA, a refreshing chip, an SRAM, a configuration PROM, a storage PROM, a second communication interface and a detected FPGA; the host computer is in charge of flow control and data processing; the current monitoring acquisition plate is in charge of power-on and power-off of the test plate and monitoring and testing of FPGA currents; and the test plate is in charge of processing a command sent by the host computer and performing work such as single particle overturning, single particle function interruption detection and the like. According to the invention, the refreshing chip is utilized to replace some of the reconfiguration modules in a conventional irradiation test system so that a detected chip can be more conveniently and reliably refreshed; and the system and method provided by the invention can realize static and dynamic overturning testing on a trigger, and more reliable trigger overturning data can be obtained by combing the two methods.
Owner:BEIJING MICROELECTRONICS TECH INST +1

Test Device And Test Method For Active Noise Reduction Headphone

The present invention discloses a test device and test method for the noise reduction headphone. The test device comprises: an enclosed cavity, a noise source, a test panel, a measuring microphone and a measure comparison module connected with the measuring microphone. The sound emitted from the noise source is sealed within the enclosed cavity. The test panel can cooperate with the noise reduction headphone to form a coupling cavity in the test. The test panel has a sound guiding hole in the common part with the enclosed cavity for transmitting the sound of the noise source into the interior of the coupling cavity. The test panel also has a mounting hole, and the measuring microphone is mounted on the mourning hole towards the direction of the coupling cavity. The measuring microphone records noise signals before and after the noise reduction function of the noise reduction headphone is activated. The measure comparison module receives the signals recorded these two times by the measuring microphone and performs comparison processing to obtain noise reduction amount of the noise reduction headphone. The technical solution of the present invention solves the problem of noise pollution caused by high-power external noise sources to the surrounding environment during the test process of noise reduction amount of the headphone, meanwhile, no special shielding room is required, and the requirement on test environment is relieved.
Owner:GOERTEK INC

Active optical module multi-channel automatic test system and method

The invention provides an active optical module multi-channel automatic test system and a method. optimal signals emitted by a tested optical module are monitored, and indexes of the incident light power, emission current, bias current, temperature, voltage, extinction ratio, eye diagram allowance, crossing point, OMA (optical modulation amplitude) etc. are measured and calculated; if the above indexes are all in accordance with the standard, the sensitivity of the optical module is tested, the emission optical power of the tested module is enabled to reach the sensitivity of the test standard via the adjustment of an attenuator, and error code tests are conducted; and if there is no error code, indexes of alarm value and alarm recovery etc. of the optical module are tested. According to the test system, an error detector, an optical module test board, an optical power meter, and the attenuator employed by the test system are all multi-channel devices, an optical switch and an optical splitter are combined for time-sharing multiplexing of one oscilloscope, at least 8 modules can be simultaneously tested, the utilization rate of the oscilloscope and the test efficiency of the optical module are greatly optimized, the equipment cost and the manual cost are reduced, and automatic and batch production of the optical modules is realized.
Owner:GUANGXUN SCI & TECH WUHAN

Multiple chips automatic test method based on programmable logic device

The invention relates to an automatic testing technology for molectron, in particular to an automatic testing method for multiple chips based on field programmable gate array (FPGA). According to the technical scheme provided by the invention, the field programmable gate array comprises the sample circuits that are connected to each other, a circuit of digital comparator, an encoder, and a pulse generating circuit. The technical scheme is characterized in that the input end of the circuit of digital comparator is connected with the output end of a multiplexer, the input end of the sample circuit is connected with a plurality of chips being tested; and the pulse generating circuit is connected with a plurality of chips being tested and a tested chip respectively; the output end of the encoder circuit is connected with the multiplexer. The invention uses the field programmable gate array (FPGA) to set up a simple automatic testing system, in which the automatic testing of a single or a plurality of chips can be implemented simultaneously on a testing board, The invention achieves automatic testing and has low input cost and rapid development, thus completely satisfying the requirement for the testing of small-lot products.
Owner:无锡汉柏信息技术有限公司

Automobile pedal operating mechanism assembly performance test board

ActiveCN102353544AShorten the development and trial production cycleReduce test costsVehicle testingMachine gearing/transmission testingElectricityControl system
The invention discloses an automobile pedal operating mechanism assembly performance test board which comprises a measuring mechanism, a rotary movement mechanism, a transverse movement mechanism, an elevating movement mechanism, a vertical movement mechanism, a support and a data acquisition control system. The support is erected with the vertical movement mechanism. One side of the vertical movement mechanism is provided with the transverse movement mechanism. A top of the transverse movement mechanism is provided with the elevating movement mechanism. The elevating movement mechanism is fixedly provided with the rotary movement mechanism. A top of the rotary movement mechanism is provided with the measuring mechanism. A force transducer of the measuring mechanism is electrically connected with the data acquisition control system. The test board has four degrees of freedom, and can carry out a plurality of detection needed by a pedal such as stroke detection, pedal force detection, output force characteristic detection, elevating time detection, master cylinder pressure characteristic detection, endurance performance detection, actuator head adjusting detection and the like, an exploitation trial-production period of the automobile pedal is shortened, and the test cost in an exploitation process is saved.
Owner:RES INST OF ZHEJIANG UNIV TAIZHOU

Performance detection workstation for automotive gear shifter assembly and detection method thereof

The invention provides a performance detection workstation for an automotive gear shifter assembly. The automotive gear shifter assembly comprises a gear shifter body and a gear shifter handle; the performance detection workstation for the automotive gear shifter assembly comprises a first driving system, a second driving system, a test board used for fixing the gear shifter body, and a clamping jaw for clamping the gear shifter handle; the first driving system drives the test board and the gear shifter body to rotate around a first axis; the second driving system drives the clamping jaw and the gear shifter handle to rotate around a second axis; and the first axis and the second axis are mutually vertical. The performance detection workstation has the main advantages that: because the gear shifter body and the gear shifter handle are controlled by an individual mechanism to rotate, the structure is simple and the assembly is convenient; parts used by the workstation are standard pieces and do not need to be separately designed and manufactured, so the cost is greatly lowered; and the performance detection workstation is suitable for the performance detection of an automotive gear shifter of which all gear shifting rods have only one rotation center.
Owner:安徽格比智能科技有限公司

Board card automatic testing system and testing method thereof

The invention discloses a board card automatic testing system and a testing method thereof. The automatic testing system comprises an industrial personal computer and a plurality of tested board cards, and further comprises a testing interface board. The testing interface board is provided with interfaces matched with the tested board cards, and the interfaces are used for being connected with the tested board cards with corresponding interfaces. The industrial personal computer is connected to the testing interface board through a communication interface. The industrial personal computer calls a detection program which is transmitted to the tested board cards through the testing interfaces. The automatic testing system of the board cards can be used for testing a plurality of board cards with different interfaces at the same time, the production cycle is shortened, and the board card production efficiency is improved. The testing method of the board card automatic testing system can monitor and store testing data of the tested board cards in real time, the testing data and testing states of the tested board cards are stored in the industrial personal computer, and errors can be conveniently tracked when errors of board card testing occur.
Owner:浙江众合科技股份有限公司

Stability parameter test board for automobile

The invention discloses a stability parameter test board for an automobile and belongs to the technical field of measurement. The test board is used for integrally testing a quality parameter, a mass center position parameter and an anti-rollover angle parameter of the automobile. The stability parameter test board consists of a measuring table board, four platform scales, a table board pillar, a foundation, three hydraulic cylinders, an inclination angle measuring device, hydraulic sensors, a pumping station and a computer, wherein the platform scales are arranged on the measuring table board and supported by a weighing sensor; supporting points of the table board pillar are distributed in a form of rectangular top points; the foundation is used for supporting the pillar and the table board; the three hydraulic cylinders are arranged between the table board and the foundation and can make the table board incline longitudinally or laterally; the inclination angle measuring device is fixed on the table board; the hydraulic sensors are arranged at upper and lower cavity positions of two hydraulic cylinders which make the table board incline longitudinally; the pumping station is connected with the hydraulic cylinders; and the computer is used for acquiring data of the weighing sensor, oil pressures of the hydraulic cylinders and the inclination angle of the table board and performing an operation. The table board has the advantage that: compared with a conventional test device, the device can complete tests on the total mass, the axle load, the wheel load, the mass center position, the anti-overturn angle and the like of the automobile, so the test workload and the test cost of the parameter test are lowered.
Owner:武汉元丰汽车电控系统股份有限公司

Platform system for realizing circuit verification of Nandflash flash memory controller based on FPGA (Field Programmable Gate Array) and method thereof

The invention relates to a platform system for realizing circuit verification of a Nandflash flash memory controller based on an FPGA (Field Programmable Gate Array). An FPGA debugging plate is provided with an SOC (System on Chip) chip, an FPGA chip and a plurality of Nandflash signal interface modules, the FPGA chip is provided with a bus switching circuit module and an Nandflash controller circuit module, a computer to be tested is connected with each Nandflash signal interface module through a test simulator, the SOC chip, the bus switching circuit module and the Nandflash controller circuit module, and each Nandflash signal interface module is connected with a corresponding test board. The invention further relates to a method for realizing the circuit verification of the Nandflash flash memory controller through the platform system. By adopting the platform system for realizing the circuit verification of the Nandflash flash memory controller based on the FPGA (Field Programmable Gate Array) and the method thereof, disclosed by the invention, the degree of automation is extremely high, the period of research and development is shortened, the cost of research and development is reduced, the test efficiency is high, the use is convenient and fast, the working performance is stable and reliable and the application range is wider.
Owner:SHANGHAI MOBILEPEAK SEMICON

Loading device of hydraulic motor test board

The invention relates to a loading device of a hydraulic motor test board, which is characterized in that a high-pressure oil pump which is connected with an oil tank is connected with an electro-hydraulic reversing valve, a bi-direction retaining throttling valve and a test motor oil inlet through a high-pressure filter and an oil inlet retaining valve, a test motor oil outlet forms a test loop with an oil return retaining valve and an oil return filter oil return box after being connected with a remote counterbalance overflow valve, a flow-rate sensor, through the bi-direction retaining throttling valve and an electro-hydraulic reversing valve oil outlet. A loader is formed by joining a loading motor and a testing motor respectively with a rotation speed torque instrument through a coupling joint, at the same time, a low-pressure pump which is connected with the oil tank enters two ends of the loading motor through two retaining valves, the testing motor rotates to drive the loading motor to rotate, the oil outlet retaining valve is automatically closed, and the outlet oil forms a loading circuit through the counterbalance overflow valve, the remote overflow valve, the oil return retaining valve and the oil return filter oil return box. The loading motor is used for substituting an original magnetic powder loader, so the size is greatly reduced, the energy consumption is reduced, the remote control adjustment is convenient for test personnel to work, the loading force is large, torque of 60000 N.m can be tested, the testing range is wide, and the practicability is strong.
Owner:宁波恒通诺达液压股份有限公司
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