38results about How to "Improve test convenience" patented technology

The invention relates to an NBTI (negative bias temperature instability) degradation detection system for a SoC (system on chip). The NBTI degradation detection system comprises a measurement ring oscillator, a reference ring oscillator, a first counter module and a second counter module, wherein the measurement ring oscillator is connected with a power supply end and the first counter module; the reference ring oscillator is connected with a power supply end and the second counter module; the measurement ring oscillator receives signals for characterizing an external circuit located in the same aging environment with a tested circuit on the SoC, after stopping receiving the signals of the external circuit, the measurement ring oscillator accesses voltage input by the power supply end at the same time with the reference ring oscillator and starts oscillation, the measurement ring oscillator and the reference ring oscillator output waveforms to the first counter module and the second counter module respectively during oscillation, the first counter module and the second counter module count levels of the received waveforms, numbers of levels for NBTI degradation detection of the tested circuit are obtained respectively, and whether the tested circuit has NBTI degradation is judged accordingly. The operation is simple and reliable, and test convenience is high.

The invention relates to an automatic testing method and device for a rotary transformer, and relates to the field of electromagnetic element manufacturing. The invention discloses the automatic testing method for the rotary transformer. The sine output zero voltage of a stator is efficiently and accurately found by controlling a rotor to rotate at a low speed and rotate positively and negativelyin a fine-tuning manner; a zero voltage interval range and a phase difference are used; the problem type is intuitively and effectively judged; fixed-angle stepping rotation of the rotor is controlled; a stator output voltage theoretical peak value data set is obtained through multiple times of fixed-angle stepping rotation, statistical analysis is conducted on the sine output voltage theoreticalpeak value data set and the cosine output voltage theoretical peak value data set respectively, a data dispersion coefficient serves as a peak value voltage consistency index, quantification of a problem judgment basis is achieved, and the test accuracy is improved.

The invention provides an engine performance experiment bed engine oil temperature control system applied to the technical field of engine performance experiment equipment. An oil pump (2) of an engine performance experiment bed engine oil temperature control system communicates with four third solenoid valve (4), the four third solenoid valve (4) communicates with an electrical heater (5), the electrical heater (5) communicates with a four-way valve (6), the four third solenoid valve (4) communicates with an oil path inlet of a heat exchanger I (7), the heat exchanger I (7) communicates with the four-way valve (6), the four third solenoid valve (4) communicates with a heat exchanger II (8), the heat exchanger II (8) communicates with the four-way valve (6), and the four-way valve (6) communicates with a heat exchanger III (9). In the engine performance experiment bed engine oil temperature control system, an engine oil temperature can be reliably controlled during the performance experiment process of an engine, the performance experiment convenience and reliability of the engine is effectively improved.

The invention relates to an ASE light source test system. The system comprises ASE light source test integrated equipment used for supplying power to a tested light source and acquiring light power and driving current information; and a test computer connected with the ASE light source test integrated equipment. The ASE light source test integrated equipment comprises a power supply module, a control circuit board and a plurality of detectors, wherein the power supply module is expanded to multi-path output through the control circuit board, and the detectors are connected with tail fibers ofa tested ASE light source. Eight light sources can be tested at the same time, each channel operates independently and does not interfere with each other, and the test capability is improved. Moreover, in hardware design, functions of a microprocessor are fully utilized, chips such as an external ADC are avoided, the design is simplified, and the development cost of test equipment is reduced.

The invention discloses a device for testing organic gas transmissivity. The device comprises a quantitative sampling device, a permeation pond, a detection device and a connection pipeline between the quantitative sampling device and the detection device, wherein the quantitative sampling device comprises a valve I, a valve IV, a multi-station communicating valve, a quantification device and connection pipelines connected among the components; the permeation pond is divided into an upper permeation pond cavity and a lower permeation pond cavity by a sample; the lower permeation pond cavity comprises a structural block, a valve and a through hole and is used for connecting the permeation pond and the detection device through the quantitative sampling device; the structural block is provided with a permeation gas hole, a sampling hole, a vacuum pump gas hole and a carrier gas input hole; and the permeation pond is connected with the detection device through the quantitative sampling device. The device has a simple structure and is convenient to operate; and the problems of inaccurate sampling amount, sampling difficulty, low sample injection precision and the like which are caused by sample gas pressure during test of gas permeability of a thin film are solved.

The invention discloses an application test method, which comprises the following steps: when an application test instruction is monitored, obtaining corresponding scene test data according to the application test instruction, and obtaining an installation package of a to-be-tested living body detection application containing an automatic test code; Writing the scene test data into an installationpackage to obtain a test installation package, generating a test request containing the test installation package, and sending the test request to a remote real machine platform; The remote real machine platform sends the test installation package in the test request to a remote real machine; And the remote real machine installs the target living body detection application containing the automatic test code according to the test installation package, operates the target living body detection application after the installation is completed, and executes a corresponding test process so as to test the target living body detection application. The invention further discloses an application testing system and device and a computer readable storage medium. The method can improve the test convenience of the in-vivo detection application and ensure the quality of the in-vivo detection application.

The invention relates to a test system for a CMOS sensor and mainly solves the technical problem that in the prior art, test functions are few and the number of test chips is low. The system provided by the invention comprises a parallel light lamp box; N CMOS sensors without lenses, wherein the CMOS sensors without the lenses correspond to positions of parallel light when the CMOS sensors without lenses are tested; and test boards connected with the CMOS sensors without the lenses, wherein the test boards comprise image sensors for collecting signal data, the CMOS sensors without the lenses and the test boards are fixed on a test board fixing frame, the test board fixing frame is fixed on a lifting platform, the test boards are connected with a control unit through USB2.0, the control unit is also connected with the lifting platform, and the control unit is connected with an upper computer through a USB cable and a serial port. According to the technical scheme, the problem is solved well, and the system can be applied to a performance test of the CMOS sensor.

The invention relates to the test equipment of a group control system control cabinet. The equipment comprises a plurality of test circuits under different test processes and a change-over switch. Theplurality of test circuits are connected to the change-over switch. The plurality of test circuits are connected to the tested controller of a control cabinet. The change-over switch is used for switching the test processes of the tested controller. The test circuits are used for carrying out simulation testing corresponding to the test processes on the tested controller according to the test process of the change-over switch lock switching. The test equipment is taken as the simulation equipment of an electric butterfly valve. The tested controller is connected to the test circuit corresponding to the test process of the test equipment. According to the switching state of the change-over switch, the test circuit corresponding to the test process carries out the simulation test corresponding to the test process on the tested controller. Through the test equipment, the control conditions of the tested controller to the electric butterfly valve under various field conditions can be simulated and detected, and test convenience is improved.

The invention discloses a dynamic test board for a needle-shaped terminal full-bridge power module, and belongs to the field of power module testing. A plurality of needle-shaped terminals are arranged on the power module, and the test board comprises a direct current bus interface, a connecting module, a driving module, a decoupling module, an inductance access module and a test module which are arranged on a double-layer circuit board; the connecting module is arranged on the outlet side of the double-layer circuit board and comprises a plurality of connecting holes in one-to-one correspondence with the needle-shaped terminals; the decoupling module is formed by connecting a plurality of decoupling branches in parallel, each decoupling branch is formed by connecting a plurality of surface-mounted decoupling capacitors in series, and the two ends of each surface-mounted decoupling capacitor are connected with a surface-mounted resistor in parallel; the decoupling module is connected with the power module plugged on the connection module, and the distance between the decoupling module and the power module is smaller than a preset threshold value; and the direct current bus interface, the driving module, the inductance access module and the test module are respectively connected with the corresponding connecting holes. The dynamic test board is small in area, low in cost, flexible to adjust and resistant to high voltage, and the test effect is improved.

The invention belongs to the technical field of power parameter testing of killing warhead fragment groups, in particular relates to a multi-channel data acquiring device for measuring fragment grouptarget landing position and target landing time. The multi-channel data acquiring device comprises a single-chip microcomputer master-slave communication system, a comb-shaped target and a computer, wherein the single-chip microcomputer master-slave communication system is formed by connecting a master machine and a plurality of slave machines, fragment target landing signals collected by the slave machines are sent to the master machine in one time, and then the master machine sends the signals to the computer. According to the multi-channel data acquiring device for measuring the fragment group target landing position and target landing time, the fragment target landing signals can be converted into corresponding I/O port level signals, and information of target landing positions and corresponding target landing time of fragments can be discerned; and the multi-channel data acquiring device is used for measuring the information of the target landing position and the corresponding target landing time of the fragment group so that the test cost can be reduced. The multi-channel data acquiring device is small in size, simple in structure and capable of improving test convenience.

The invention provides a portable server hardware test terminal, comprising: a terminal body which is provided with a display screen, a network connection control key group and a test control key group. The tester can carry the test terminal, obtain the network connection control instruction through the network connection control key, call the communication module, and make the communication module and the server to be tested carry on the network communication connection; after the communication module is successfully connected with the network of the server to be tested, the network connection success signal is returned to the processor, and the processor displays the network connection success signal on the display screen. Thus, the remote communication connection or wired communicationconnection between the test terminal and the server to be tested is realized, which is convenient for on-site detection and testing.

The invention discloses a water distribution ring pipe, which belongs to the technical field of fluid mechanical engineering equipment, comprises a water distribution ring pipe upper section and a water distribution ring pipe lower section which are connected to form a ring pipe body, and is characterized by further comprising a runner chamber and an angle adjusting ring, a first fixing base is fixed to the top of the annular pipe body, a second fixing base is fixed to the bottom of the annular pipe body, the first fixing base and the second fixing base are both located at the joint of the annular pipe body and the branch pipe, a branch pipe splitter plate is embedded between the first fixing base and the second fixing base, the cross section of the branch pipe splitter plate is in a tapered wedge shape, and a transition flange is arranged on the runner chamber. The transition flange and the runner chamber are connected through an angle adjusting ring. By replacing the branch pipe splitter plate, a hydraulic flow channel can be rapidly changed, the jet flow angle is adjusted, rotating wheels with different pitch circle sizes are replaced for testing, and the model testing convenience is greatly improved.

The invention relates to the technical field of electric energy control, in particular to a method for testing the low-voltage ride-through characteristic of an SVG (Static Var Generator). According to the technical scheme, the method comprises the following steps that firstly, a low-voltage ride-through simulation test function is added into an SVG converter control system; and 2, adding low-voltage ride-through simulation test parameters into the SVG converter control system. And 3, completing correctness test of test functions and test parameters on a test platform of an equipment manufacturer, wherein field test conditions are provided. And 4, after the converter control system is upgraded on the SVG site, testing is carried out, and data are recorded. And a fifth step of analyzing related active and reactive power control characteristics according to the active power and the reactive power which are obtained through actual measurement, and completing a test. The method has the advantages that the test cost is low, the test difficulty is small, field tests can be conveniently carried out, the converter control system is adopted for data recording, and the test convenience can be further improved.

The embodiment of the invention provides a door window test system. The door window test system comprises a door window, an electronic control system, a high voltage variable frequency fan, a back wallboard, a displacement acquisition system and a CPU module, wherein the door window is hoisted on the back wallboard by virtue of a transmission device and forms an airtight cavity with the back wallboard; by virtue of the electronic control system, air pressure output of the high voltage variable frequency fan is controlled, a static air pressure is formed in the airtight cavity, and a test is performed; by virtue of the high voltage variable frequency fan, maximum output power can reach 12kPa, and positive and negative pressure switching is performed, so that performance of the test system is stable; the test system provided by the embodiment of the invention has excellent pressure capacity and electronic control stability and can cope with a large load test on a large-size door window product; multiple door windows can be tested, so that test efficiency is improved; a spraying system can be combined according to the actual situation, so that test convenience is improved; and a testresult is obtained by virtue of the CPU module.

The invention discloses a test system for an audio interface of a wireless communication module. The wireless communication module comprises pins MICP, MICN, SPKP and SPKN, a first GPIO and an analog-to-digital conversion interface. The test system comprises a first conversion circuit, a second conversion circuit and a first switching circuit; audio signals input by the MICP and the MICN are output to the SPKP and the SPKN; the first conversion circuit converts the received SPKP signal into a first signal and outputs the first signal to the first input end of the first switching circuit; the second signal conversion circuit converts the received SPKN signal into a second signal and outputs the second signal to the second input end of the first switch circuit, the first switch circuit outputs the first signal or the second signal to the analog-to-digital conversion interface under the control of the first GPIO, and whether the test is passed is judged according to the voltage data of the analog-to-digital conversion interface. According to the audio interface testing system of the wireless communication module, testing equipment is simplified, and testing is convenient.

The invention relates to a Simulink model-oriented automatic test tool and method, and the tool comprises a first setting module which is used for setting the comparison precision of a simulation step length and a test result; the third selection module is used for selecting an MIL simulation mode or an SIL simulation mode; the fourth selection module is used for selecting to execute a single test case or multiple test cases; the calculation module is used for calculating the coverage degree of the test; the second setting module is used for setting only comparison of expected time point data or comparison of each simulation step length; the automatic testing module is used for executing automatic testing on the to-be-tested Simulink model based on the test case; the generation module is used for generating a test result based on the current test case; according to the method, the to-be-tested model and the test case can be rapidly loaded by a tester, then one-key automatic testing is completed, the tool is provided with personalized configuration, a user can select required configuration on a front-end interface according to own needs, then personalized testing is carried out, and the application range is wide.

The invention relates to the technical field of electronic product processing, in particular to a printed circuit board. According to the technical scheme, the circuit board comprises a circuit board body, the circuit board body comprises a core plate, prepregs are arranged on the two sides of the core plate, copper foil is connected to the other sides of the prepregs, an aluminum plate is arranged on the other side of the copper foil, blind holes are formed in the aluminum plate, and signal holes are formed in the circuit board body. The invention further discloses a manufacturing method of the printed circuit board. The manufacturing method comprises the following steps: S1, preparing materials; s2, punching and pressing; s3, hole treatment; and S4, transfer electroplating. The printed circuit board is convenient to test, high in signal transmission stability, high in signal transmission accuracy, simple in pressing mode, capable of reducing processing steps and improving processing efficiency, suitable for processing and using circuit boards with different layer numbers, capable of improving using flexibility and universality and suitable for application and popularization.