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327results about How to "Shorten test time" patented technology

Rapid detection method for battery life

The invention discloses a rapid detection method for the battery life. The rapid detection method for the battery life comprises the steps that firstly, the maximum available capacity of a battery is rapidly estimated on the basis of a partial discharge method; secondly, the capacity retention rate is acquired through the maximum available capacity; finally, the residual cycle life, represented in a cycle index mode, of the battery is estimated according to the current capacity retention rate and the known rated cycle life of the battery. It is clear that the maximum available capacity is selected as a key performance parameter, degradation track modeling is conducted on the maximum available capacity of the battery on the basis of a performance degradation method, and then prediction of the residual cycle life of the lead-acid battery is achieved. In addition, the maximum available capacity of the battery is estimated on the basis of the partial discharge method, so that rapid prediction of the residual cycle life of the battery is achieved. Due to the fact that whole-process discharge operation does not need to be conducted, the test time is greatly shortened, the accuracy can be satisfactory on the premise that the discharge rule of the battery is grasped, and the rapid detection method for the battery life has the high application value in the fields of military, energy sources and traffic.
Owner:中国人民解放军92537部队

Building wall apparent heat transfer coefficient field detection method suitable for districts hot in summer and warm in winter

The invention discloses a novel heating device of an apparent heat transfer coefficient field detection system for a wall body enclosure structure. The novel heating device mainly comprises a heat homogenizing plate, a flexible electric heating coil layer, an outer heat-isolation material layer, an inner heat-isolation material layer, an electric power adjuster and the like, wherein the heat homogenizing plate is tightly pressed against the surface of a wall body to be detected and can be used for uniformly heating the wall body. The periphery of the heat homogenizing plate is provided with the inner heat-isolation material layer which is located between a wall face and the heat homogenizing plate. The flexible electric heating coil layer is arranged on the back face of the heat homogenizing plate. The external heat-isolation material layer is arranged on the back face of the flexible electric heating coil layer so as to prevent the heat produced by the heating coil from being lost at the back of the coil in an isolation manner. The novel heating device is suitable for heating in the field detection of the apparent heat transfer coefficient of the wall body enclosure structure, is light in total weight, easy to regulate in electric heating power, rapid to assemble and disassemble and suitable for carrying, and the number of the heat homogenizing plates can be increased or decreased according to the actual dimension of the wall body in a detection field.
Owner:CHINA ACADEMY OF BUILDING RES TIANJIN INST

Erosion corrosion test device of seawater piping system metal member

The invention relates to an erosion corrosion test device of a seawater piping system metal member, comprising a fluoroplastic centrifugal pump and a water storage tank, wherein the inner side wall of the water storage tank is provided with a cooling system; the inlet of the fluoroplastic centrifugal pump is connected with the water storage tank, and the outlet main line of the fluoroplastic centrifugal pump is connected with a plurality of parallel-connected working pipelines; each working pipeline is sequentially connected in series with a flow regulating valve, a vortex street flowmeter and a working pipe section; the outlet ends of the plurality of parallel-connected working pipelines are communicated with the water storage tank through loops; the outlet main line of the fluoroplastic centrifugal pump is also provided with a by-pass; the by-pass is communicated to the water storage tank; and the working pipe section is also electrically connected with an electrochemical test device. The erosion corrosion test device can realize the erosion corrosion resistant property tests of different pipe samples under approximately completely consistent test conditions of a same medium, same temperature, same flow velocity, and the like and can also be used for researching the erosion corrosion resistant property of a same material under the conditions of different mediums and flow velocities.
Owner:苏州有色金属研究院有限公司

Test instrument sharing usage method and test system in automatic optical module test

InactiveCN102932058AShorten test timeImprove instrument utilizationFibre transmissionOptical switchInstrumentation
The invention discloses a test instrument sharing usage method and a test system in an automatic optical module test. The system comprises a plurality of testing machine platforms, optical modules to be tested, optical module testing instruments, servers, switchboards and optical switches, wherein the testing machine platforms are connected with the switchboards, the switchboards are connected with the servers, the servers are connected with all the optical module testing instruments, and the optical module testing instruments are with the optical modules to be tested which are arranged on the testing machine platforms through the optical switches. Control is achieved through servers, when a testing machine platform requires an optical module testing instrument, the testing machine platform applies for resources of the instrument for a server, when the instrument idles, the server distributes the resources of the instrument to the testing machine platform, at the same time, the instrument is remarked to be occupied until the testing machine platform releases the usage of the platform, and if one instrument is occupied by one of the testing machine platforms , the other testing machine platform can apply for the usage of other instruments. According to the method and the system, by the aid of the server, testing resources are coordinated, a plurality of optical modules can be detected, and the utilization rate of the instruments can be improved.
Owner:绍兴飞泰光电技术有限公司

Wireless interference test method and system

The invention provides a wireless interference test method and system. The wireless interference test method achieves an adjustable interference test aiming at a LTE-V2X communication link in the anechoic chamber environment, comprising the following steps: establishing a wireless interference test system including a transmitting unit, an anechoic chamber, a receiving unit and an interference unitfirst; and establishing communication links between each device in the wireless interference test system to realize the semi-object simulation interference test in the anechoic chamber environment. When performing the wireless interference test, the simulation test of the true channels of different scenes in the frequency band is performed by setting different parameters of a first channel simulator in the transmission unit, therefore, the problem that more manpower and time cost are required in the general outfield test is solved, and the efficiency and effectiveness of the test are greatlyimproved. In addition, a second channel simulator is configured for the interference sources, therefore, the real interference signal characteristics in a non-used scene can be simulated, and the accurate and parameter adjustable interference source signal is realized.
Owner:深圳无线电检测技术研究院 +1

Testing device and method for digital semiconductor device

The invention discloses a testing device and method for a digital semiconductor device; the testing device comprises a time series generator module, an algorithm vector generator module, a programmable data selector module and a testing module, wherein the testing module comprises a logic testing module, a waveform format controller module, a base pin circuit module and a digital comparing module; the logic testing module receives a main clock signal and a first testing vector and simultaneously sends a second testing vector to the waveform format controller module; the first testing vector is transmitted to the logic testing module and is stored before testing begins; and when testing begins, the logic testing module selects the stored first testing vector, forms and transmits the second testing vector to the waveform format controller module. The testing device intensifies the functions of a tester of the traditional memory so that the tester not only has the powerful testing function of the traditional memory, but also has the testing capability of a complex logic device; and simultaneously the very strong simultaneous testing capability of the tester is beyond that of the traditional logic tester, thereby effectively reducing the testing cost and saving the testing time.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Self-detection mending method for built-in self-test system

InactiveCN102737722AShorten test timeStatic storageProspective dataTested time
The invention provides a self-detection mending method for a built-in self-test system. The self-detection mending method comprises the following steps: inputting expected data into a memory storage array according to a gradually increased sequence of addresses; optimizing the built-in self-test system, wherein the built-in self-test system records a start address of the memory storage array and reads the data stored in the memory storage array according to an input mode; sequentially comparing each bit data of the stored data which is read according to the address with each bit data of the expected data in the built-in self-test system, which is pre-stored by taking the number of bytes corresponding to the addresses as a unit according to the input mode, and sequentially outputting a comparison result of each address; and when the comparison results indicate that the contents are inconsistent, determining that the stored data of the storage array, which corresponds to the comparison results, is an ineffective address, and mending the stored data of the ineffective address by a redundant array. According to the self-detection mending method, the ineffective address of a memory can be quickly judged, and the current ineffective address of the memory can be mended by the redundant array, so that the test time is shortened.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

Wireless interference test method and system

ActiveCN107911833AImprove testing efficiency and effectivenessShorten test timeTransmission monitoringWireless communicationFrequency bandField tests
The invention provides a wireless interference test method and system. The wireless interference test method that is used for carrying out semi-physical simulation interference testing in an anechoicchamber environment comprises: a wireless interference test system including a transmitting unit, an anechoic chamber, a receiving unit, and an interference device is established and communication links between all devices in the wireless interference test system are established; and when wireless interference testing is carried out, different parameters of a channel simulator in the transmittingunit are set to simulate real channels of different scenes in the test frequency band. Therefore, problems of lots of manpower and time costs for common outer field testing are solved, so that the testing efficiency and effectiveness are improved substantially. Moreover, because the outer field test interference source has attenuation and declining problems and an interference signal arriving at the under-interference device can not be quantified easily, interference sources with different frequency bands are added by a standard antenna in the anechoic chamber, so that the testing time is shortened effectively and the testing accuracy and reproducibility are improved.
Owner:深圳无线电检测技术研究院 +1

Tabu search and artificial potential field method combined online digital micro-fluidic chip test method

The invention relates to a tabu search and artificial potential field method combined online digital micro-fluidic chip test method, belongs to the field of digital micro-fluidic chip fault test, and aims at solving the problem that the practical application range is narrow as most of the existing online test methods aim at the customized digital micro-fluidic chips with special electrode layout. Aiming at digital micro-fluidic chips with regular rectangular electrode layout, the invention discloses the tabu search and artificial potential field method combined online digital micro-fluidic chip test method, and the method comprises the following steps of: establishing a mathematic model for online test of the digital micro-fluidic chips; constructing an abutment list; setting initial parameters; calculating the value of resultant force sugared from each node in a selectable neighborhood of the current node, and selecting the next node according to the value of resultant force and a tabu table; updating the tabu table; judging whether a path is integral or not; and judging whether the number of iterations achieves a preset value. The method provided by the invention is suitable for the online test path optimization problems of the digital micro-fluidic chips.
Owner:HARBIN INST OF TECH

Automatic detection system for laser level meter and detection method

The invention provides an automatic detection system for a laser level meter. The automatic detection system for the laser level meter comprises a vertical detection station, wherein the vertical detection station is used for detecting a vertical laser line, and the station is provided with a pentaprism for deflecting the vertical laser line to a horizontal laser line; a horizontal detection station, wherein the horizontal detection station is used for detecting the horizontal laser line; an optical collimator, wherein the optical collimator is internally provided with an objective lens and areticle, the position of the objective lens is opposite to the position of the reticle, and the laser line is projected to the reticle after passing through the objective lens; a camera, wherein the camera is used for collecting a laser image on the reticle; and a computer, wherein the camera is connected with the computer, the computer is used for analyzing and calculating the image collected bythe camera. The technical scheme is capable of automatically and accurately measuring angles of the vertical and horizontal laser lines emitted by the laser level meter, greatly shortening the testingtime, improving the efficiency, realizing the measurement to the vertical laser line and the horizontal laser line by a set of the optical collimator and the camera, reducing the cost, and decreasingthe spatial arrangement of a detection device.
Owner:苏州瑞地测控技术有限公司
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