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

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 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 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 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 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 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.