554results about How to "Improve test reliability" patented technology

A test system for mobile terminals comprises a sub-control center and at least one test terminal connected with the sub-control center, wherein the sub-control center is used for receiving a test task, analyzing the test task, and allocating test cases to the corresponding test terminals based on a predetermined allocation strategy, the test task comprises at least one test case, the test terminals are used for operating the allocated test cases, and therefore the test of the mobile terminals is realized. According to the technical scheme of the test system for the mobile terminals, the resources of the test terminals can be fully utilized, test cost is lowered, and test efficiency and the reliability of the test system are improved.

The invention provides an amplitude and phase test system of active phased-array radar T / R assemblies, and aims at providing the amplitude and phase test system of high efficiency, reliability and test precision. The N T / R assemblies are connected to antenna directional couplers via two paths of test feed power dividing networks respectively; a frequency synthesizer, a pre-stage power amplifier, a sum and difference device, a sum circuit receiver and a test conversion module are connected between the test feed power dividing networks at the front and tail ends respectively; when test starts, a terminal in the emission T test or reception R test mode emits a test instruction to the frequency synthesizer, the frequency synthesizer outputs test start and test pulse signals, and identical test excitation signals are generated in each beat according to the test pulse; and a wave controller controls different paths of phase shifters on the basis of an orthogonal coding rule, orthogonal phase modules is carried out on the test excitation signals respectively, the modulated signals are input to a signal processor, and amplitude and phase test for all the T / R assemblies is completed.

The invention discloses a plate clamper platform for a falling weight impact test, and an impact speed measurement method. The plate clamper platform comprises a clamper structure, a supporting lifting structure and a laser sensor, wherein the clamper structure comprises a plate clamping device, a multi-angle rotation device and a clamper bottom plate, the multi-angle rotation device comprises wall plates, wall plate bolts and a bottom plate bolt, each wall plate is provided with a central hole and two arc-shaped grooves, the two arc-shaped grooves are symmetrically arranged relative to the central hole, clamping plates can rotate along the arc-shaped grooves after the wall plate bolts are completely loosened, the supporting lifting structure comprises a platform and a lifting driving device, the clamper bottom plate can rotate by adopting the bottom plate bolt as the center and can slidably move along a straight strip hole, and the laser sensor is arranged below the weight tray positioned on the periphery of a hammer head. With the plate clamper platform and the impact speed measurement method of the present invention, the composite material plate specimen can be tightly clamped, the multi-angle impact on the specimen can be achieved, and the speed change during the drop hammer falling and impact process can be real-timely measured.

The present invention relates to a psychological method for testing or subconsciously teaching a subject. The method involves varying a subconscious exposure time period of a visual subconscious stimulus displayed to a subject in order to determine an effective subconscious exposure time period specific to the subject. To subconsciously test the subject, the method further uses a masking stimulus following the visual subconscious stimulus, both images having common image characteristics including brightness and contrast. The masking stimulus is made from scrambled subcomponents of the visual subconscious stimulus. The invention also describes an apparatus for psychological testing capable of varying a subconscious exposure time period of a visual subconscious stimulus displayed to a subject in order to determine an effective subconscious exposure time period specific to the subject. The apparatus also uses a mosaic generator to generate a masking stimulus from a visual subconscious stimulus.

A method for detecting tip positions of probes which is performed prior to the wafer test includes a first step of attaching the transparent film F on the test substrate W having the electrodes P arranged same as those of the wafer; a second step of detecting the electrodes P of the test substrate W by using the first CCD camera 13A; a third step of detecting a surface height of the transparent film F; a fourth step of position-aligning the electrodes P of the test substrate W with the probes 12A. The method further includes a fifth step of forming the probe marks M on the transparent film F by making the probes 12A contact with the transparent film F; and a sixth step of detecting tip positions of the probes 12A based on the electrodes P of the test substrate W and the probe marks M.

A tire defect detection system including a support structure for receiving a tire; an actuator disposed proximate the tire for impacting the tire; a microphone disposed proximate the actuator for receiving a sound wave generated when the actuator impacts the tire; and a computer responsive to the microphone, the computer programmed to calculate a number of discriminator quantities from the resulting sound wave and to compare the calculated discriminator quantities with stored discriminator quantities indicative of a defect to determine whether a defect is present in the tire.

The invention provides a high temperature strain foil performance parameter tester and a test method thereof. The high temperature strain foil performance parameter tester is composed of a heating system, a heat preservation system, a temperature control system, a circulation system, a support system and a loading system. The tester and the test method of the invention can test technical parameters of the high temperature strain foil such as null shift, thermal output, thermal delay, mechanical delay, change of sensitivity coefficient with temperature, creep deformation of the high temperature strain foil, creep deformation of constant strength calibration beams made of measured target material and the like. The tester and the test method of the invention feature high test precision, good high temperature repeatability and reliable test results, thus providing data correction for long-term high temperature strain monitoring.

The invention discloses a device for testing the communication error rate and the sensitivity of a light module. The device is connected with a light receiving and emitting module to be tested and comprises an electric signal driving distribution and selection circuit, an error rate detection circuit, a light receiving and emitting module circuit, a light power detection and attenuation control circuit, a light signal driving distribution and selection circuit and a control circuit. The control circuit respectively controls a channel of electric signals output by the electric signal driving distribution and selection circuit, a channel of light signals output by the light signal driving distribution and selection circuit, the attenuation amount of light signals of the light power detection and attenuation control circuit and the detection error rate and the sensitivity of the error rate detection circuit. According to the device for testing the communication error rate and the sensitivity of the light module, signals transmitted simultaneously by different channels of the multi-channel light module can be tested, the problems that optical fibers need to be plugged and pulled multiple times in the error rate testing process, the sensitivity testing process and the light emitting power testing process of the light module so that the light power can be tested can be avoided, and the test efficiency and the reliability of test results are improved.

The invention provides a method for testing a digital display interface and a device thereof, and the method comprises the following steps: a digital display interface signal which is output from the digital display interface and corresponds to a preset video signal is received and then is decoded as a digital signal; the digital signal is stored and then read and compared with the preset video signal to judge whether the digital signal is consistent with the preset video signal; if so, the digital display interface is determined as normal; otherwise, the digital display interface is determined as abnormal. The device comprises an encoding unit, a storing unit and a comparing unit. In the testing process of the technical proposal of the embodiment of the invention, as no operator is required to make a subjective judgment, the objective test of the digital display interface is realized, the test efficiency and reliability are improved, and the consumption of manpower is reduced; in addition, the realization is easy, and the purchase of expensive display device is not required, thus greatly reducing the test cost.

A cantilever-type probe card includes a circuit board, a grounding block electrically connected to a zero potential, signal probes, and at least one grounding probe connected to the grounding block. Each signal probe has a probing tip, a connection portion affixed to the circuit board, and a front arm defined between the connection portion and the probing tip. The front arm of each of the signal probes is suspended in the grounding block and spaced from the grounding block at a predetermined pitch.

The invention provides a mobile phone testing system and a method thereof. The method of the invention comprises the steps that a testing terminal receives an instruction testing the communication between at least two mobile phones to be tested; the testing terminal then analyzes the received instruction; a testing script is obtained according to the analysis result; the testing terminal then tests the communication between at least two mobile phones to be tested on the basis of the testing script and the implemented result returned from the mobile phone to be tested. By adopting the testing method and the testing system of the invention, the automatic testing can be carried out to a plurality of mobile phones to be tested according to the testing script, which results in that the testing reliability and the testing efficiency are improved and the working pressure of testers and the testing cost are also reduced to a certain extent.

A testing method transponder channel frequency response based on a vector network comprises the steps of (1), selecting a PNA-X-series vector network analyzer and a switching matrix with a vector network analyzer testing channel as testing equipment; (2), performing frequency scanning self-calibration on the vector network analyzer; (3), respectively calibrating an uplink testing channel and a downlink testing channel of the system by means of the vector network analyzer; (4), connecting the vector network analyzer with the switching matrix and a to-be-tested transponder, and constructing a testing channel; (5), setting related parameters in the vector network analyzer, finishing amplitude frequency characteristic measurement, outband inhibition measurement and group delay measurement through automatic controlling of the vector network analyzer, and simultaneously drawing a corresponding signal trace line; and (7), extracting testing result data of three testing items, and respectively deducing insertion loss and time delay of the testing channel, thereby obtaining a final channel frequency response testing result of the tested transponder.

The invention relates to a circuit structure for automatically testing an analog baseband chip comprising an analog-digital converter (ADC) and a digital-analog converter (DAC). A low-voltage differential signal conversion module is connected with a low-voltage differential signal input end and a low-voltage differential signal output end of the analog baseband chip; an output end of the DAC of the analog baseband chip is connected with an input end of the ADC; the low-voltage differential signal conversion module is connected with a transmit data storage module, a receive data storage module and a transmitting and stopping control module; and the transmit data storage module and the receive data storage module are connected with an external display device via an error calculation module and a test result display module. The invention also relates to a method for automatically testing the analog baseband chip comprising the ADC and the DAC based on the circuit structure. By the circuit structure and the method for automatically testing the analog baseband chip comprising the ADC and the DAC, the testing complexity is reduced, the testing time is shortened, and the testing precision and reliability are improved; and the process is convenient and fast, the working performance is stable, and the application rage is wider.

An automatic testing system and method are used for testing a mobile phone instead of a manual test operation. The automatic testing system uses a base station simulator and a test computer. The computer converts an operational message from the base station simulator into a test command. In the method according to the present invention, an automatic test program finds a test command corresponding to the operational message from a lookup table. The test command is then sent to the mobile phone under test and then the base station simulator validates a performance of the mobile phone by examining an execution result of the mobile phone. Test time is reduced and test correctness is enhanced for a mobile phone.

The invention discloses a startup self-detection method used in a hardware detecting program which needs to load a detecting firmware inside the basic input / output system of a computer. The method includes the following steps: (a) a startup self-detection program is executed; (b) when the hardware detecting program of the startup self-detection program is executed, a first sequential detection firmware tests at least one hardware device; (c) when a hardware testing program returns an error value, an error information corresponding to the hardware testing program is output to a memory; (d) a computer is restarted, and a subsequential detection firmware which is loaded to a basic input / output system from the memory executes the hardware testing program; (e) when the hardware testing program returns a correct value, the startup self-detection program is executed continuously; in addition, when the hardware testing program still returns an error value in the step (e), the process returns to the step (c).

The invention discloses a detecting device of control time sequence of a non-contact initiating explosive device and a method thereof, relating to an automatic detecting device and a method for the energization time sequence of a control system of the initiating explosive device. The detecting device mainly comprises a signal collecting unit, a central processing unit, a data storage unit, a man-machine interactive unit and an automatic detecting unit. The method utilizes the device and the image processing and pattern recognition technology to conduct automatic detection by programs. The invention has the characteristics of capability for detecting various types of equivalent machines and various time sequence status, good commonality, high testing efficiency and reliability, high accuracy and reliability of testing results, and the like. The invention can be widely applied to industries which have demands on the accurate control of detonation of initiating explosive device, such as spaceflight, aviation, engineering, building, manufacturing, medical treatment and the like, and can ensure the reliable and safe application of the initiating explosive device.

The invention relates to a device for testing the gas permeability in an inner direction of a paving layer surface. The device comprises a die, a loading device, a temperature control device, a vacuumizing device and a flow detection element, wherein the die at least consists of a cavity and a cover board for sealing the cavity; a sealing component is accommodated in the cavity; a test sample to be tested is paved in the sealing component; besides both ends of the test sample to be tested in the inner direction of the paving layer surface, the test sample to be tested is gas-sealed by the sealing component; both ends, corresponding to the non-gas-sealed positions of the test sample to be tested, of the die are provided with a gas inlet and a gas outlet respectively; the flow detection element is communicated with the gas inlet; and the gas outlet is communicated with the vacuumizing device. By the device, test of the gas permeability of prepreg in the inner direction of the paving layer surface is realized by providing power for moving the gas along the inner direction of the prepreg paving layer surface in the vacuum cavity. Due to regulation of pressure and temperature, measurement of the gas permeability of the prepreg in a curing technology can be realized.

The invention discloses a method for simulating soil slope instability induced by groundwater. The method is characterized by comprising the following steps: a, putting a physical model on a centrifugal machine; b, raising the height of an external water tank, opening a water outlet valve and a water inlet valve, carrying out water seepage into a soil layer according to the thickness of a saturated soil layer and completing the saturation process of a soil mass; c, closing the water inlet valve, reducing the height of the external water tank, improving the centrifugal acceleration to solidifyand disperse the internal pore water pressure of the physical model; d, after the solidification is finished, opening the water inlet valve, raising the height of the external water tank to the corresponding height according to the preset water level height of an internal water tank; obtaining different infiltration capacity of the water to the slope when the water in the internal water tank seepsinto the soil layer and stays at different heights, and observing the wetting front change and the slope deformation condition of the physical model. The method disclosed by the invention has the advantages that the height of the groundwater level can be accurately adjusted in real time and washing of water current to the slope body is prevented; in the whole test process, high operability, highreliability and good test effect are realized.

The invention provides a thermo-mechanical coupling loading method for thermal strength tests, which can be used for achieving high temperature and large temperature rise rate and simulating unequally distributed loads. The technical scheme is as follows: the method comprises the following steps: arranging a quartz burner in front of a test piece loading area, wherein a gap is formed between the quartz burner and the test piece loading area, and a gap area is reserved in the arrangement area of the quartz burner; hinging a loading block at the front end of a mandril, wherein the loading block penetrates through the gap area of the arrangement area of the quartz burner and props against the surface of the test piece loading area; heating the test piece loading area via thermal radiation by using the quartz burner; and loading mechanical load on the test piece loading area by using the loading block.

The embodiment of the invention discloses an application-level random instruction testing method, system and device, which can not generate testing blind areas or weak links easily. The method comprises the following steps of: randomly selecting multiple instruction templates from a specified instruction set; and testing for the preset times by utilizing the instruction templates, and obtaining test results. Each test comprises the following steps of: respectively executing assembly instructions which are randomly generated according to the instruction templates by using a hardware platform and a simulation platform, and obtaining respective execution results, wherein the specified memory spaces and registers of the hardware platform and the simulation platform are initialized. Each test result includes a comparison result, and the comparison result is obtained by comparing whether the execution result of the hardware platform is the same as the execution result of the simulation platform. In the invention, the selection of the instruction templates and the generation of the assembly instructions are random, and especially, when the preset times are large enough, blind areas or weak links which are difficult to test by conventional programs / test cases are easier to test, so that testing blind areas or weak links are not easy to generate.

The invention relates to a computer system on-off test device which comprises a time control unit, a detecting unit and a test control unit, wherein the time control unit is used for storing a parameter of interval time and a parameter of test frequency; the detecting unit is used for detecting a signal parameter on a computer system to be detected; the test control unit is used for controlling alternative switching between a power supply signal and the computer system; when the power supply signal is in a power-on state, the test control unit is used for receiving a power-on state signal returned by the computer system and judging whether the computer system is normally powered on or not according to a signal parameter and the power-on state signal; if the computer system is normally powered on, the test control unit stops supplying power to the computer system after the interval time and resupplies the power to the computer system for carrying out the next on-off test till the test frequency is finished; and if the computer system is not normally powered on, the signal parameter, a parameter comparison result and a test result are displayed. The computer system on-off test device can be used for automatically carrying out computer system on-off test and is quite convenient.

The invention relates to an explosive performance detection device, in particular to an explosive collision sensitivity instrument, which is mainly used for solving the problems of poor testing consistence, low testing accuracy and difficulty in ensuring the testing conditions existing in the conventional collision sensitivity testing device. The explosive collision sensitivity instrument comprises a drop hammer elevating and positioning mechanism, a drop hammer fixing and releasing mechanism, a collision device mechanism, an optically-controlled anti-secondary-collision mechanism and an integral control mechanism, wherein the drop hammer elevating and positioning mechanism comprises a base, an elevating guide rail which is vertically fixed on the upper surface of the base, an upper fixed plate which is horizontally fixed at the top end of the elevating guide rail and an elevating plate of which the end part is connected with the elevating guide rail in a sliding manner; and the drop hammer fixing and releasing mechanism comprises a drop hammer, a drop hammer sucking cover and a vacuum pump connecting pipe. The explosive collision sensitivity instrument has the characteristics of Custer and 12-type tool testing structures, can be used for detecting the sensitivity properties such as collision explosion probability, characteristic drop height and the like of an explosive, and can be used for detecting the safety performance of the explosive.

The invention discloses a test seat of a passive microwave radio frequency transformer. The test seat comprises a cavity, a circuit board, a positioning board and a spring thimble clamp. An open-ended cavity of an upper end surface of the cavity is fixedly connected to a pedestal. The circuit board and the positioning board are fixedly placed in the cavity from bottom to top. The circuit board is connected to monitoring equipment through a lead. The positioning board is provided with a groove which is used for placing the transformer. The spring thimble clamp is fixedly connected to a stand column and is provided with a compression bar which can elastically recover stretching. A position of the compression bar directly faces the groove. The stand column is fixedly connected to the pedestal. In the invention, a tested device is placed in the groove so as to carry out positioning; and the compression bar which can elastically recover stretching is used to carry out fastening so that tight contact of a pin is realized. By using the test seat of the invention, problems of mechanical damages and poor contact brought by a welding mode in the prior art are solved. The test seat possesses characteristics that the structure is simple; reliability and maneuverability are high; loading and unloading are convenient; test efficiency is high; the device has no loss and so on. And the test seat is suitable for a test of a large quantity of products.

The invention discloses a recording and playback test method and a related device. The method includes the steps of determining a target control matched with triggered control on operation interface during recording from operation interface during playback based on semantic information of control on operation interface of tested software during recording and playback; during recording, correspondingly applying the operation applied to triggered control to target control during playback, so that playback of operation corresponding to operation interface during recording is realized; and recording each operation in the obtained operation sequence, determining the target control one by one according to the execution sequence of each operation in the operation sequence, and executing the corresponding operation, so that the playback of the whole operation sequence can be completed, and finally, the test result of the tested software is determined. According to the method, the control is matched according to the semantic information of the control, operation playback is carried out depending on the coordinate position on the operation screenshot, the playback failure probability is effectively reduced, and the test reliability is improved. And furthermore, a more accurate test result of the tested software can be obtained.

The invention discloses a test device and method for simulating the effect of a spur dike on the water flow, and belongs to the field of physical mechanic model tests. The test device is composed of a test module, a light source module, a data collection module and a control module; the test module is composed of foundation test components of the spur dike water flow test; the light source module and the data collection module are attached to the test module; the control module controls other modules of the device; an integrated device is adopted, the particle picture speed measuring technology is designed and introduced for finishing the spur dike water flow test process, and the beneficial effects of being less in manpower consumption, high in efficiency, low in test cost, energy-saving, environment-friendly, suitable for the wider station range, high in test precision and the like are achieved.

The invention discloses a four-table shunt excitation perpendicular vibration test system with an expansion table board. The system comprises four vibration table bodies, four outside lug supports, two inside lug supports, one expansion table board, eight pairs of Pad bearings, four periphery supports, one bearing mounting frame, four movable frame adaptors, one center air spring support, four periphery air spring supports, eight air springs and eight support blocks, wherein the inside lug supports are located in the middles of two outside lug supports, the four vibration table bodies are supported between the inside lug supports and are connected with the above expansion table board through the movable frame adaptors respectively, two layers of the eight pairs of Pad bearings which are symmetrically distributed on the periphery restrain the expansion table board to move in the vertical direction, system anti-overturning moment is realized by preloading horizontal loads on the Pad bearings, and static load support is realized on the expansion table board through the air springs in five positions of the bottom center and the periphery.

A probe apparatus with control-position detection means is provided for testing an electrical characteristic of a to-be-tested object formed on a substrate W. The probe apparatus includes a prober chamber, a susceptor provided in the prober chamber for placing thereon a to-be-tested object, and a moving mechanism for moving the susceptor in X-, Y-, Z- and θ-directions. The probe apparatus further includes a probe card having a plurality of probes and opposing the susceptor, and a first optical length-measuring unit. The first length-measuring unit emits light to the surface of the to-be-tested object placed on the susceptor, and detects the Z-directional position of the to-be-tested object based on the light reflected from the object. The probe apparatus can have a second length-measuring unit.

The present invention discloses a performance detection and analysis test stand of an engineering machinery transmission assembly. The performance detection and analysis test stand of the engineering machinery transmission assembly comprises a pedestal, a transmission to be detected, a torque converter to be detected, a driving motor, a first torque and rotational speed sensor, a second torque and rotational speed sensor, a third torque and rotational speed sensor, an accompanying gear case, a loading motor, a vibration sensor, a noise sensor, a data acquisition card, a controller and an upper computer. The driving motor, the first torque and rotational speed sensor, the transmission to be detected, the second torque and rotational speed sensor, the torque converter to be detected, the third torque and rotational speed sensor, the accompanying gear case and the loading motor are connected in turn, and the loading motor is in power supply connection with the driving motor; the first torque and rotational speed sensor, the second torque and rotational speed sensor and the third torque and rotational speed sensor are in data transmission connection with the upper computer; and the upper computer is in control connection with the driving motor and the loading motor. The performance detection and analysis test stand of an engineering machinery transmission assembly is characterized in that: a transmission and a torque converter are able to perform a performance test in the same working condition and perform a NVH detection to improve the quality of the transmission. The present invention further discloses a performance detection and analysis test method of an engineering machinery transmission assembly.

The invention provides an automatic test system and method for a transformer substation measurement and control device. The system comprises a test background server, an exchanger, a network tester, an intelligent tester, a three-phase standard meter, a controllable power source and a GPS clock module. The data exchanging is respectively carried out between the network tester and the test background server, between the intelligent tester and the test background server, between the three-phase standard meter and the test background server and between the controllable power source and the test background server through the exchanger, the test background server is in communication with the measurement and control device through the network protocol, the controllable power source is controlled to supply electricity to the measurement and control device, and time synchronism between the test background server and the measurement and control device is achieved through a GPS clock module. According to the automatic test system and method for the transformer substation measurement and control device, a test task can be automatically generated, detection steps can be automatically executed, detection reports can be automatically generated, the interference of artificial factors is reduced, the test randomness is removed, testing efficiency and testing reliability are improved, testing repeatability is achieved, the traceability of testing work is guaranteed, and the reliability and consistency of the test result are guaranteed.

A field in-situ intelligent airtight vegetable growth chamber is provided with a chamber body, a temperature automatic control system, a carbon dioxide automatic control system, and a weeding, pesticide spraying and watering system; the chamber body is provided with an upper part chamber body and a lower part chamber body, the upper part chamber body is a transparent body with a cover and without bottom, the lower part chamber body has no cover or bottom, the upper border of the lower part chamber body is provided with a water tank, the lower border of the upper part chamber body is placed in the water tank and sealed by water, the lower part chamber body is buried in soil, and vegetables are cultured in the soil in the chamber body; the temperature automatic control system is provided with two temperature and moisture sensors which are respectively arranged inside and outside the chamber body, the collected data are sent to a data collecting controller and a computer to be compared, when the temperature inside the chamber body is higher than the set value of temperature outside the chamber body, a relay starts a secondary refrigerating system to work; the carbon dioxide automatic control system pumps the gas in the chamber to a carbon dioxide gas detector for detection, the detection result is compared with the set concentration, if the detection result is higher than the set concentration, the normal closed outlet of an electromagnetic valve is opened, carbon dioxide gas enters into the chamber body after being subject to sodium hydroxide absorption, if the detection result is lower than the set concentration, the electromagnetic valve is opened to supplement high-purity carbon dioxide, and if the concentration of gaseous carbon dioxide is within normal range, the gas is directly returned to the chamber body.