659 results about "Type test" patented technology

The invention provides a plane type ejection launch carrier-borne aircraft front undercarriage static force test loading apparatus. The apparatus comprises a plane type test bench rack, an undercarriage, a lateral load loading device, a course load loading device, a vertical load loading device, an ejection load loading device, a hamper load loading device and a mooring load loading device. Based on a conventional loading technology, a set of loading equipment capable of applying ejecting, hampering and mooring loads is designed, and the vertical, course, lateral, ejection, hampering and mooring load loading of an ejection launch carrier-borne aircraft is finished on a single test bench, no replacement of tools is needed, all the loading points are fixed in the frame type test bench, a self-balance bearing system is formed when loading is performed, the bearing of the test bench is quite small, the fixation is facilitated, and the precision is high.

The present invention relates to a distributed intelligent motor monitoring system. The system includes a locale bottom layer intelligent monitoring substation, a high layer intelligent monitoring main station, and a modular system application software for executing data acquisition and information processing to realize motor monitoring function. Wherein, the monitoring substation is connected to the motor in corresponding position, and is composed of an intelligent monitoring module including monitoring instrument, instrument and data sampler, the intelligent monitoring main station is composed of computers for realizing motor information centralized processing and intelligent monitoring, the substation and the main station is interconnected by data communication network. The system can realize the real time acquisition and local/remote monitoring for the parameters of single or multiple motors, the motor running status recognition and failure diagnosis function. The system not only can be used as the special equipment for delivery tests and type approval test for the motor manufacturer, but also can be broadly used for the motor real time monitoring or on line failure monitoring for the industrial department such as metallurgy, chemical industry, petroleum and pharmacy.

The invention discloses a circuit board testing system, which comprises a test tank, a material taking and putting mechanism and a control system, wherein the control system comprises a PC (personal computer) processor and a PLC (Programmable Logic Controller) control system. A box-type test machine comprises a box body, a drawer-type fixture, a fixture driving component and a test device, wherein one side of the box body is opened; the drawer-type fixture is arranged in the box body in an insertion mode from the opened side of the box body; the fixture driving component is connected with the drawer-type fixture and is used for driving the drawer-type fixture to pop out or retract back to the opened side of the box body; and the test device is arranged in the box body and is communicated with a circuit board to be tested. According to the circuit board testing system, the automation of the circuit board testing system can be realized.

The invention provides a distribution transformer fault diagnosis system and method based on the relation between temperature rise and load. The distribution transformer fault diagnosis system structurally comprises a transformer, a temperature rise monitoring module, a temperature sensor, a load monitoring module, a voltage and current combination transformer and an analysis module, wherein an output end A of the transformer is connected with the input end of the temperature sensor; an output end B of the transformer is connected with the input end of the voltage and current combination transformer; the output end of the temperature sensor is connected with the input end of the temperature rise monitoring module; the output of the voltage and current combination transformer is connected with the load monitoring module; outputs of the temperature rise monitoring module and the load monitoring module are connected with the analysis module. The system and the method have the advantage of excellent practicability, can be applicable to oil-immersed transformers and dry-type transformers, and are simple in algorithm, and easy to implement. Through the temperature rise test on the type test item of a transformer, the theoretical model accuracy of the relation between the temperature rise of the transformer and the load is ensured, and the possibility that the fault response is insensitive or incomplete due to the fault diagnosis model and algorithm is eliminated.

The invention provides a front undercarriage static force test loading device for a frame-type catapult-assisted take-off shipboard aircraft. The front undercarriage static force test loading device comprises a frame-type test stand, an undercarriage, a lateral load loading device, a course load loading device, a vertical load loading device, an ejection load loading device and a trapping load loading device. The front undercarriage static force test loading device is one of loading technologies in the prior art, the loading device is designed to realize ejection application and load trapping, vertical, course, lateral, ejection and trapping load loadings of the catapult-assisted take-off shipboard aircraft are accomplished on the test stand, tool replacement is not required, all loading points are respectively fixed in the frame-type test stand, a self-balance bearing system is established during loading, bearing force of the test stand is relatively small, and the loading device is convenient to fix and has high precision.

Sterilization indicator test packs for testing the effectiveness of a sterilization procedure are provided. Both non-challenge and challenge-type test packs are disclosed. The non-challenge test packs include generally comprise a tray for holding a sterilization indicator the tray containing an elevated rim surface defining the perimeter of the tray and a recessed trough for receiving a sterilization indicator. The rim surface includes a plurality of spaced-apart grooves along its length extending through the rim to the recessed trough; a sterilization indicator within the recessed trough of the tray; and a lid that forms a plurality of channels with the grooves in the tray such that sterilant can enter the tray through the channels and contact the sterilization indicator.

The challenge-type test packs generally include a tray for holding a sterilization indicator, the tray comprising a substantially planar surface, a recessed trough for receiving a sterilization indicator, and a recessed groove of a defined length and cross-sectional area extending through the recessed trough and penetrating the edge of the tray; a sterilization indicator within the recessed trough of the tray; and a lid forming a substantially sterilant-impermeable seal with the planar surface of the tray and forming a lumen path with the recessed groove in the tray.

The invention relates to a valve high-temperature type test device which mainly solves the problem that the type test data of a valve can not be automatically collected and processed in high temperature environment. The valve high-temperature type test device is characterized in that a power source (2), a torque sensor (7) and a support seat (8) are installed on a test table (1), an input end of the torque sensor (7) is connected with an output shaft of the power source (2), and an output end of the torque sensor (7) is connected with a valve rod on a valve (9) to be tested after passing through the support seat; and a thermocouple sensor (16) and a pressure transmitter sensor (17) are arranged on the valve (9) to be tested. The valve high-temperature type test device tests out whether all indexes are qualified through automatic acquisition of the type test data of the valve in high temperature environment and data processing by a computer and finally makes a report on the valve type test conclusion. The invention has the characteristics of accurate test data and high working efficiency.

The invention discloses a small-size eddy type test tube vibrating and blending device. The device comprises a blending box, a stepper motor is mounted at the bottom of the blending box, a main shaft of the blending box is connected with a transmission shaft through a flexible coupling, a rotary planetary gear is fixedly mounted in the middle of the transmission shaft, a first sleeve is movably mounted at the upper end of the transmission shaft, three or more planetary gear supports are welded to the outer wall of the first sleeve, a second sleeve is welded to the other end of each planetary gear support, and the middle of each supporting shaft is movably connected with the corresponding second sleeve. According to the small-size eddy type test tube vibrating and blending device, the supporting shafts of test tube blenders are mounted on a planetary gear, due to the fact that the planetary gear is meshed with a fixed planetary gear arranged on the inner wall of the blending box and the rotary planetary gear on the transmission shaft at the same time, when the transmission shaft is driven by the stepper motor to rotate, the test tube blenders can be made to revolve around the transmission shaft at the same time of rotating around the supporting shafts connected with the test tube blenders, and thereby automatic, rapid and uniform blending of liquid sample test tubes is achieved.

The invention provides a continuous wind tunnel wing type dynamic characteristic testing mechanism which comprises a wind tunnel, a pivot window mechanism, a driving device, a crank device, a connecting rod and a model supporting oscillation device. The continuous wind tunnel wing type dynamic characteristic test is realized through the driving device, the crank device, the connecting rod and the model supporting oscillation device; wing-type dynamic motion range adjustment is realized by adjusting the position of a slide block along an axis of a sliding rod in the crank device and adjusting the length of two sections of rod in the connecting rod; an oscillating shaft flange plate and an average incidence angle flange plate are matched through different pin holes, an initial angle of the wing type is accurately selected; according to the special pivot window mechanism, pivot window parts needing to be detached due to model change in the traditional pivot window structure are optimized, for example, the window does not need to be detached after one-step installation, so that the condition that the model needs to be recalibrated due to one-step detachment is effectively avoided, lots of precious time is saved for preparatory work of the wing-type test, and the experimental efficiency is effectively improved.

The invention relates to a motor type test testing system which comprises a measuring control cabinet, a control platform, a power source control cabinet and a GC4060 electronic inner feedback variable frequency power source, wherein the measuring control cabinet is respectively connected with the GC4060 electronic inner feedback variable frequency power source, the control platform and a tested motor. Site equipment is controlled by means of operation of a pre-positioned PLC program which is preinstalled by a PLC module unit, measurement, collection, monitoring and processing of data of the tested motor can be achieved, configuration software of a host computer is communicated with the PLC module unit through a CP5611 card, automatic selection and control over tested motor items are achieved, and a data report is automatically generated. An variable-frequency power source remote control unit, a GC2464 microprocessor multifunctional digital power meter, a GC9100 microprocessor intelligent motor parameter tester, a GC9300 microprocessor torque rotational-speed tester, a computer and a printer are integrated in the control platform and connected in a communication mode through communication interfaces. The motor type test testing system has the advantages of being high in measuring precision, capable of directly calculating tested item data and automatically recording, generating and printing the data report, simple in structure, and wide in application range.

The invention relates to an engineering machinery hydraulic cylinder fault diagnosis system and a fault sample signal acquisition method applicable to the engineering machinery hydraulic cylinder fault diagnosis system. The system comprises a feature parameter extraction module, a database module, a human-computer interaction module and a classifier module, wherein the feature parameter extraction module is used for extracting fault feature parameters and checking the similarity; the database module is used for storing sample data and temporary data; the classifier module is used for designing a classifier and classifying unknown fault signals; the human-computer interaction module is used for completing related query display functions according to user input. The fault sample signal acquisition method is used for carrying out hierarchical simulation tests on fault tree bottom events on a hydraulic cylinder type test bed and acquiring fault sample signals and test bed status signals. The engineering machinery hydraulic cylinder fault diagnosis system and the fault sample signal acquisition method have the advantages that the system is high in fault diagnosis precision, fault causes and fault levels can be diagnosed, and the acquired fault sample signals have few impurities and facilitate extraction of the feature parameters.

The invention discloses a method for extracting and classifying fMRI features based on adaptive entropy algorithm for projection clustering (APEC). The method comprises the steps of building a dynamic function connecting matrix by the sliding time window method; performing (AEPC) to cluster dynamic function connecting matrixes of parties in A type and B type tests so as to form a plurality of clustering centers; calculating the similarity between the functional connecting matrix of each test party and each clustering center to form a similarity matrix; extracting elements in the similarity matrix as the features; classifying brain data through a training SVM classifier. With the adoption of the method, the generalization of a data classifying model is improved, and moreover, rich brain dynamic structure information can be extracted; the method can be applied to automatic handling and classification of brain data in the study of the biology information technology.

The invention relates to a two-dimensional airfoil type test platform comprising an upper turnplate unit (1), a lower turnplate unit (3) and a test theme unit (2), the turnplate unit (1) is connected with the test theme unit (2), the test theme unit (2) is connected with the lower turnplate unit (3), the turnplate unit (1) is connected with an H-shaped beam in the floor position on the wind tunnel, and the lower turnplate unit (3) is connected with a wind tunnel turnplate. The two-dimensional airfoil type test platform has the advantages that the weight of a model is independent of a resistance component, a variation range in load of the resistance component along the axon is not big, and relatively small resistance changes are easy to measure. Another advantage is that an outlaid balance is not prone to being affected by high-voltage high-frequency discharge of an electrode on the model surface.

The invention provides an intelligent steel strand based on optical fiber Brillouin sensing, as well as a preparation method and a full-scale monitoring method thereof. The intelligent steel strand comprises a FRP-OF intelligent bar, a steel strand outer wire, a high-ductility metal foil and optical fiber, wherein the surface of the FRP-OF intelligent bar is wrapped by at least one layer of high-ductility metal foil; the FRP-OF intelligent bar and the steel strand outer wire are twisted and molded; and the optical fiber is arranged in the FRP-OF intelligent bar and threaded out from two ends. The steel strand has intelligent sensing characteristic, is high in testing precision, has the advantages of electromagnetic interference resistance, absolute measurement, good stability and durability, and overcomes the disadvantages that electric measurement, local fiber grating and other sensing techniques are incapable of full-distribution type test. Meanwhile, the intelligent steel strand can be used to monitor the prestress loss of prestress engineering, and is particularly applicable to the health monitoring for structures such as parallel steel-strand stay ropes of cable-stayed bridges. The intelligent steel strand is simple in manufacturing process, low in cost and particularly suitable for industrial production.

The invention relates to a device for testing the reliability of a turbocharger and belongs to the technical field of power machines. The device comprises two independent turbocharger self-circulating test beds, a connecting pipeline between the two test beds, a valve used for adjusting the gas flow between the two test beds, and a valve used for adjusting a turbocharger to be tested so as to enable the turbocharger to discharge air to the atmosphere. The invention further discloses an adjustment method for high-low temperature cycling thermal shock testing. According to the device and method, turbocharger high-low temperature cycling thermal shock testing is achieved based on self circulation of the turbochargers, an external source does not need to supply compressed air to the test beds, thermal shock testing of two turbochargers can be achieved at the same time, and testing cost is reduced. Compared with the method for conducting thermal shock testing on an engine, the test bed has the advantages that the test bed is not limited by the exhaust temperature of the engine, high-low temperature cycling thermal shock testing within a wider temperature range can be achieved, and the test bed has high application value in improving the reliability of the turbochargers.

The invention relates to an intelligent type test system for the service life of fuses, which comprises a central control unit, a programmable constant-current source, a monitoring and isolating module and an execution unit, wherein the programmable constant-current source is connected between one output end of the central control unit and a fuse group in series, the monitoring and isolating module is electrically connected between the input end of the central control unit and each fuse, and the execution unit is electrically connected between the output end of the central control unit and each fuse and used for receiving a signal of the central control unit to short-circuit the corresponding disconnected fuses so as to restore the power supply of other fuses. By the test system, real-time monitoring can be carried out on the on-off states of the fuses. After a certain fuse is fused, the fuse is automatically short-circuited, so that the power supply of other fuse samples is automatically restored, and no interruption of the electrification time of the fuses is ensured. Meanwhile, the output test current of the constant-current source can be accurately controlled, and a firm test basis is established for the evaluation accuracy of the service life of the fuses.

The invention relates to a mini-type test evaluation device for integral SCR denitration catalyst reaction performance test and an application method thereof, and belongs to the technical field of catalysis. A flow control instrument and a temperature control instrument control the temperature of a reaction gas sample introduction control device and a heating furnace of a preheating-reacting device; all component gases and water vapor passing through the reaction gas sample introduction control device are converged into a gas mixing device; simulated flue gas getting out of the gas mixing device enters a gas preheating pipe of the preheating-reacting device, the simulated glue gas getting out of the gas preheating pipe enters a catalyst filling pipe of the preheating-reacting device and passes through a catalyst bed layer; the gas passing through the inlet of the gas preheating pipe of the preheating-reacting device and the gas passing through the outlet of the catalyst filling pipe are led into a flue gas composition analyzing system through a sampler. The operation temperature of the device is high, and the measured activity of the catalyst is relatively low but closer to the real value; the barrier in the heat transmitting process and the thermal loss in the process are reduced, and energy saving is facilitated; the time for achieving balance of the device is shortened.

The invention relates to a universal type test board and a testing method thereof. The universal type test board can be used for testing encapsulating chips with base pins distributed differently, comprises a plurality of connectors with two columns of contact pins, a plurality of power connectors with two columns of contact pins and a chip socket, and further comprises a plurality of buffering connectors and a plurality of power buffering connectors. The buffering connectors are connected with the chip socket and the connectors; and the power buffering connectors are connected with the power connectors. When the chips are tested on the test board, the configuration of a power channel or a signal channel is conducted to the connecting channels of the contact pins on the buffering connectors through testing the distribution of the base pins of the chips. By adopting the method, the test board can test the various encapsulating chips with the base pins distributed differently, so that a special test board is not required when the chips with the base pins to be distributed are tested, thus effectively solving the testing economic cost of the chips.

The invention discloses a hanging elastic element for a heavy all-wheel drive off-road vehicle and a design method of the element. The hanging elastic element comprises a variable-stiffness few-leaf-spring assembly, an intermediate axle assembly, a rear axle assembly and a balance shaft seat, the variable-stiffness few-leaf-spring assembly comprises primary spring group springs and secondary spring group springs, a frame is fixedly connected at the upper end of the secondary spring group spring, the upper ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the upper end of the balance shaft seat through the primary spring group springs, and the lower ends of the intermediate axle assembly and the rear axle assembly are respectively connected with the lower end of the balance shaft seat through lower thrusting rods. The hanging elastic element has suitable hanging partial frequency under the independent action of the primary springs and under the combined action of the primary spring group springs and the secondary spring group springs, tests of smoothness, comfort and reliability of a real vehicle are verified, a type test is verified, and the hanging elastic element has good smoothness, comfort and reliability under various working conditions and solves the problems of poor smoothness and comfort of a linear single-stiffness leaf spring of a heavy 6X6 off-road vehicle.

The invention provides a method for determining the object conversion order during the dynamic updating of software and a system adopting the method, which belongs to technical field of the computer application. In the method, acquiring object reference information and reference stop information; comparing and deleting redundant object reference information and the two types of information matched with each other; differentiating the object reference property so as to acquire all dependency relationship information of active objects; testing the updating completeness by utilizing the type test rule; and testing the updating condition of a safety object so as to acquire the reasonable updating order of components. The system comprises a service calling monitoring module, a reference information updating module, a component dependency analysis module, a completeness testing module and an updating order selection module. By the invention, the dynamic dependency relationship of component objects can be dynamically acquired in the operational process of the system, and the reasonable updating order of the component objects can be generated during dynamically updating the components.

The invention discloses a testing platform and method generally used for the whole process of low voltage user side distributed power source grid connection. The testing platform comprises a distributed power generation simulation module, a power grid working condition generating module, a measuring analysis module and an isolation power distribution module, wherein the distributed power generation simulation module is used for simulating the output characteristic of distribution generation and is connected with the input end of EUT, the power grid working condition generating module is used for simulating the operation working conditions of multiple power grids and is connected with the output end of the EUT, the measuring analysis module is used for controlling the detection procedures and collecting data analysis detection results, and the isolation power distribution module is used for providing electricity for detecting equipment. The detecting method application of the whole process of the testing platform comprises the type test, the predelivery test, the dynamic simulation test and the field test of the EUT. The testing platform is designed in a modular combination mode so as to be integrated in a mobile vehicle trunk conveniently, modular equipment can be combined freely according to testing objects and testing modes to meet the requirement for testing under different occasions and environments, and the whole process testing of grid connection of low voltage distributed photovoltaic generators, wind power generators and gas turbine generators.

The invention relates to a noncontact-type test method of an early-period thermal expansion coefficient of a concrete dam and equipment thereof. The test method comprises the following steps of: (1) loading a piece to be tested in a culture test barrel; (2) arranging a metal test terminal at the top of the piece to be tested and immediately putting the tested piece in a constant-temperature water bath to culture; (3) stabilizing for a period of time, slightly increasing the temperature, confirming a test end point when the internal temperature of the piece to be tested is constant with the water temperature, then decreasing the temperature to a start temperature and circulating; (4) testing the displacement values of the bottom and the top of the piece to be tested with a noncontact-type laser displacement sensor; and (5) calculating the early-period thermal expansion coefficient of the piece to be tested according to tested displacement change data. The equipment comprises the culture test barrel containing the piece to be tested, a constant-temperature water bath case is arranged outside the barrel, the culture test barrel is internally provided with the metal test terminal which is pre-buried at the top end of the piece to be tested, and the noncontact-type laser displacement sensor is arranged on the culture test barrel. The invention overcomes the defects of the prior art and provides a noncontact-type in-situ displacement test to acquire the early-period thermal expansion coefficient of the concrete dam.

The invention provides an experiment table for testing the transmission efficiency, the instantaneous tooth surface temperature rise and the fatigue life of a high-speed transmission gear. According to the experiment table, an electric closing type closed loop system is adopted by a gear experiment table, gearboxes are connected in a back-to-back manner, and the power loss in the operation processes of the gearboxes is obtained by carrying out a contrast experiment on the two gearboxes. The experiment table comprises two three-phase asynchronous variable frequency motors suitable for high rotation speed and high power, two torque and rotation speed sensors, two temperature sensors, a tested gearbox, an accompanying type test gearbox, and a lubrication system. Aiming at the requirements, the invention provides the high-rotation-speed transmission gear experiment table approaching to engineering practices; and according to the high-rotation-speed transmission gear experiment table, high-rotation-speed working condition parameters and the instantaneous temperature rise at the surfaces of gear teeth can be simultaneously measured, and the instantaneous efficiency and the total meshing efficiency of the gearboxes in each working condition process can be simultaneously calculated, so that the intensive study can be carried out on the performances of the whole transmission gear.

A multifunctional seepage deformation tester comprises a stander, wherein a vertical-loading and lateral-loading control system is arranged on an upper cover of a special combined-type seepage container which is made of organic glass, the special combined-type seepage container which is made of the organic glass and a vertical-loading and lateral-loading control system assembly is fixed on the stander, a water head measuring system, a flow-rate measuring system and a temperature measuring system are arranged on the side edge of the stander, and a water outlet pipe of a water head elevation device with an overflow pipe is connected with a water inlet valve on a base of the special combined-type seepage container which is made of the organic glass. The multifunctional seepage deformation tester has advantages that the requirements of universal parameter standard for soil test instruments can be met, and the multifunction of the test working condition and convenience and practicability in operation can be realized by researching a combined-type test container barrel. The cover weight loading is integrated with the lateral pressure loading, so that not only can the seepage characteristic parameters under no pressure be measured, but also the seepage characteristics of any underground point under the stress state can be simulated.