762 results about "Combined test" patented technology

The invention discloses a soil one-dimensional consolidation, penetration, stressing relaxation combined test instrument and usage, which posits punch inside a punch cavity at the bottom of pressure container. It can do consolidation and compression to the same soil sample K0, it also can do soil sample penetration test and stressing relaxation test directly and simultaneously. It can test the soil sample's value of coefficient of static lateral pressure K0 and the process of pore water pressure followed by time. The test instrument and method can arrange soil's consolidation characteristic parameter by test outcome and using theoretical formula penetration method. It can do soil's theological behavior analysis by the outcome of stressing relaxation test.

A multi-wireless access technology based over-the-air test system, used for evaluating over-the-air index of a wireless terminal device, has the principle of putting a device to be tested in a three-dimensional space, and establishing a communication link with a base station simulator (namely wireless communications test set); controlling Phi, Theta axles (two axles perpendicular to each other) to rotate according to set step, performing measurement on various angle positions; measuring spherical effective Total Radiated Power of a moving station in the three-dimensional space and Total Isotropic Sensitivity of a receiver. The system mainly comprises a darkroom, a high-accuracy positioning system and its controller(including a rotating axle controller and a polarization controller), a radio frequency test instrument and a main control terminal computer with automatic test program, wherein the radio frequency instruments comprises a wireless communications test set, a spectrum analyzer, a network analyzer and a radio frequency unit.

The invention discloses a comprehensive test method of a small satellite power subsystem. In the method, a solar cell array is replaced by a solar matrix simulator; a ground wired test and control platform of a satellite comprehensive test system is used to transmit wired instructions and collect important parameters; and ground test and control equipment, a remote measurement and control front end and a test computer are used to transmit remote control instructions and collect remote test data. After the satellite is electrified, the on operation time, off operation time and remote control command transmission time of the solar matrix simulator are reasonably controlled, the working state of a power subsystem is set, various parameters and states are monitored and interpreted, and thus, various test items are accomplished. In addition, a method of injecting normal or fault data blocks and program blocks is adopted to test the up injection function, reliability and fault tolerance are tested. The method has high test coverage, clear and definite flow, simple and reliable operation and convenient construction.

The invention discloses a performance testing system and method for an autonomous vehicle. The method comprises the steps: obtaining a testing demand, and generating an offline testing parameter and/or online testing parameter according to the testing demand, wherein the offline testing parameter is used for configuring the offline simulation test of equipment on a to-be-tested vehicle, and the online testing parameter is used for configuring the real drive test of the to-be-tested vehicle; carrying out the offline simulation test of the to-be-tested vehicle based on the offline testing parameter, and obtaining a testing result; carrying out the real drive test of the to-be-tested vehicle based on the online testing parameter, and obtaining a testing result. The system and method providedby the invention can achieve the integrated test, comprising the offline test and the real drive test, of the autonomous vehicle according to the actual testing demand. Compared with the prior art, the system and method can obtain a more accurate and complete testing result.

A comprehensive test experiment device for dynamic and static properties of a rolling bearing-main shaft system comprises a main shaft in which the front end is installed on a front end bearing support saddle; the end surface of the front end bearing support saddle is provided with three laser displacement sensor test probes; the front end bearing support saddle is internally provided with an experiment bearing; load is carried out through a radial load hydraulic tank and an axial load hydraulic tank; the back end of the main shaft is assembled on a back end bearing support saddle, and the back end bearing support saddle is configured to be paired angle contact bearings, and both an integrated monitoring ring and a pre-tightening push block are installed between the angle contact bearings to realize self-adapting pre-tightening of the bearing; the main shaft is provided with an eccentric quality shock excitation disk for applying bearing shock excitation; and the main shaft is driven by a variable-frequency electric motor. The comprehensive test experiment device for dynamic and static properties of a rolling bearing-main shaft system is used for detecting the influence on the dynamic and static properties of multiple types of bearings and the main shaft system, thereby overcoming the defect that the existing rolling bearing-main shaft experiment platform has the characteristics of single-type tested bearing, too low integration degree and rough single processing, being capable of carrying multiple experimental researches, and improving the flexibility of the rolling bearing-main shaft experiment platform.

The invention discloses a comprehensive experimental device for the coal and gas burst, comprising a coal sample chamber, a terrestrial stress simulation loading system and an atmospheric pressure loading device, wherein the terrestrial stress simulation loading system is provided with a force applying capsule and a loading device in a sealed container, the atmospheric pressure loading device is provided with an atmospheric pressure loading channel that communicates with the wall interlayer of the capsule, the loading device comprises at least two loading blocks, the coal sample chamber is enclosed by the loading blocks between which a gap is arranged, and the force applying capsule is sleeved at outside of the coal sample chamber. According to the experimental result observed by a pressure acquisition device and a camera, the invention is capable of simultaneously inspecting the actions of the gas pressure and terrestrial stress in the initiation, start and development of the coal and gas burst through the simulation of coaction of the terrestrial stress and atmospheric pressure to provide the theoretical foundation of forecasting and preventing the coal and gas burst; during the use, the pressure value is capable of being regulated to observe the experimental results under different pressure and the simulation of terrestrial stress or gas pressure only, so that the device is flexible in use.

The invention relates to a laser parameter integrated test system, comprising a wedge spectroscope, a concave spherical reflector, a digital plane array charge coupled device (CCD) camera, a silicon photoelectric diode, a photoelectric detector, an energy probe, a spectrometer, an adjustable attenuator, a stepping motor and a computer with an acquisition card and a control card. A laser to be tested is incident upon the plane reflector; the monopulse energy, the pulse width, the repetition frequency and the wavelength of the laser beam are measured by means of the transmission light of the plane reflector; the wedge spectroscope splits the reflection light of the plane reflector into two beams, wherein one beam of laser is used for observing a near field laser spot, and the other beam of laser is used for measuring the M2 factor, the far field divergent angle, the beam waist diameter and the pointing stability of the laser beam. The laser parameter integrated test system can carry out integrating, precise and stable measurements on the monopulse energy, the wavelength, the pulse width, the repetition frequency, the M2 factor and the pointing stability of the laser beam.

The invention discloses a dynamic driving environment human physiological characteristics and biomechanics test platform which mainly consists of a dynamic excitation system, a three-dimensional digital adjustable seat system, a three-dimensional adjustable driving mechanism and a human physiological characteristics and biomechanics test system. The invention can simulate the dynamic environment (vibration environment) of automobiles, which means to implement the stepless frequency conversion, the amplitude, the frequency fixation and frequency sweep vibration for the variable acceleration; simulate the posture operation of the automobiles in various driving environment; measure the human physiological character indexes of the human electromyography signals, the human arterial blood flow, the human blood pressure response, the human heartbeat number of a driver, etc., and the vibration response of every human part, the contact stress of a human-chair interface and the body pressure distribution of human buttock and back; study and comprehensively test the human physiological characteristics and the human biomechanics of the driving postures of different populations. Through the stimulation on a dynamic driving environment human physiological characteristics and biomechanics test system, scientific data required by the automobile human-machine interface design for populations with different shapes can be obtained.

The invention relates to a mobile communication terminal radio frequency testing system, which belongs to the field of mobile communication terminal radio frequency test. The system comprises a comprehensive tester, a frequency spectrum analyzer, a vector signal source, a wideband signal source, a power meter, a direct current source, a temperature control box, a switch control unit and a controller thereof , and a system control platform, wherein the system control platform is connected with the controller of the switch control unit, the temperature control box, the comprehensive tester, the frequency spectrum analyzer, the vector signal source, the wideband signal source, the power meter and the direct current source respectively; and the comprehensive tester, the frequency spectrum analyzer, the vector signal source and the wideband signal source are connected with the switch control unit and a terminal to be tested respectively. The system has the advantages of simple operating flow, clear testing process, quick testing, serious processing on testing result, and good reliability and stability; in addition, the system can quickly and accurately develop a test case meeting self requirement, realize diverse and standard test, also can flexibly extend to the control on other instruments and meters, and realize flexible configuration of the system.

The invention discloses a vehicle-mounted transformer comprehensive test system. The system is characterized by comprising an industrial personal computer (IPC), a communication module, a hub conversion plate, a short-circuit impedance short connector, a load switch adjuster, and a comprehensive test device, wherein the IPC carries out data communication with each test device of the comprehensive test device through the communication module; each test device of the comprehensive test device is connected with the hub conversion plate through an internal connection wire; the hub conversion plate is connected with a tested transformer through a test wire; a medium-voltage short-circuit impedance short connector and a low-voltage short-circuit impedance short connector are respectively connected with the medium-voltage side and the low-voltage side of the tested transformer through the test wire; the load switch adjuster is connected with a load switch adjusting device of the tested transformer through the test wire. The comprehensive test system provided by the invention can complete all of the test items by a single connection, thereby avoiding frequent replacement of instruments and connection wires.

The invention relates to a technology for performing foundation pile quality detection and geology survey by adopting a single tube longitudinal wave method. The technology is relevant to comprehensive testing of the actual using effect of a foundation pile and is characterized in that longitudinal wave transmitting downwards along a pile body is generated by knocking the top surface of the foundation pile, the longitudinal wave velocity and pile length of the foundation pile can be accurately measured by detecting the time difference of arrival of the longitudinal wave in a sounding pipe, and the quality of pile body concrete can be judged; actual measurement on the time difference of arrival of the longitudinal wave which is transmitted from the pile side soil along the knocked pile body can be conducted in adjacent pipelines or geological bore holes, and the length of the foundation pile, the pile body quality and the chambering degree can be measured; and the wave length of a geological soil layer can be measured, the condition of the geological soil layer around the pile can be judged, and the rock-inlet condition of the foundation pile can be analyzed. By means of the technology for performing foundation pile quality detection and geology survey by adopting the single tube longitudinal wave method, a signal processor can be configured externally or inserted in on the basis of the existing low-strain ultrasonic detection devices and the like, the technology can achieve foundation pile quality nondestructive testing and geology survey, is an economic and ready-made pile foundation nondestructive testing auxiliary validation method and can remarkably improve accuracy and service level of pile foundation quality decision.

The invention discloses a comprehensive test platform and a comprehensive test method for a dynamic system of a fuel cell hybrid electric vehicle. The platform comprises an industrial control console operation unit, a lithium cell pack unit, a fuel cell unit, a direct-current/direct-current (DC/DC) converter, a tested motor unit, an alternating-current power dynamometer unit, a switching execution unit and a resistive electronic controllable load, wherein the industrial control console operation unit communicates with all the other units through a data acquisition card, a controller area network (CAN) card and a CAN bus, and simulates to manage the whole comprehensive test platform. According to the comprehensive test platform and the comprehensive test method, comprehensive test functions of testing the performance of a fuel cell system, a lithium cell pack and a tested motor and managing the energy of the dynamic system is realized.

The invention provides a bogie performance parameter combined test stand of a rail vehicle. The test stand comprises a mechanical analog detection device and a test signal transmitting and processing system; the mechanical analog detection device mainly comprises a frame, a shifting platform, a loading beam, a vertical loading actuator, a horizontal loading actuator, a wheel pair clamping actuator and a track; and the test signal transmitting and processing system contains an industrial control computer, a laser distance meter, a load sensor, a transmitting channel of the load sensor used for generating signals and a data processing software. By using the test stand of the invention, the simulation of the loading of the vehicle body corbel of the overall bogie of the rail vehicle,, the rotation of the bogie and the traverse movement of the wheel pair can be realized; the installed test signal transmitting and processing system can realize fast, accurate and comprehensive detections of various items and ensure the reliability of the dynamic performance parameters of the bogie; and the safety performance of the rail vehicle can be increased and the requirements of the related rules of the ministry of railway can be satisfied.

The invention discloses a test device for integration testing service at E1, T1 interfaces. The device includes interface configuration database, error code database of telephone channel, calling service database, load control module, protocol emulation module, protocol monitoring module, speech recognition and telephone channel check module, error code testing module, message encoding module, message decoding module, and interface module. Through cooperation and interaction among above said modules realize following functions and parallel processing: unity of monitor and emulation, interface configuration, protocol stack, different kinds of types speech path test, signaling flow and calling service, DTMF dispatching number, identification of cue tone, and error code testing etc. The invention makes possible to enter performance testing, conformance testing and synthesis aptitude test from single functional test executed at currently.

The invention discloses a system and method for carrying out in-situ light/electrical/thermal comprehensive testing on a plurality of light-emitting diode devices while carrying out accelerated aging on the light-emitting diode devices. The detection system comprises a light-emitting diode loading circuit board (1), an electrical parameter generating and testing device (2), a multi-channel drive control device (3), a light detection device (4), a light detection control device (5), a light signal processing analysis device (6), a constant temperature control device (7), a temperature detection device (8) and a central monitoring and processing computer (9). By using the system and method disclosed by the invention, a plurality of light-emitting diodes can be subjected to accelerated aging, and the electrical, optical and thermal properties of each light-emitting diode device can be tested one by one through setting time nodes by the computer so as to comprehensively understand the overall physical properties of the light-emitting diode (LED) devices.

The invention provides a battery simulating system, which comprises a battery simulator controlled by a single chip machine, and further comprises a battery management system which collects the voltage, temperature and current information output by the battery simulator and feeds the information back to an upper computer; and an upper computer for setting the battery simulator, displaying the work state and output information of the battery simulator and displaying the voltage, temperature and current information fed back by the battery management system. The battery simulator further comprises a voltage module consisting of DA chips, a temperature module and a current module. The single chip machine can control the gating and the output of the voltage module, the temperature module and the current module according to a battery parameter setting command and a switch parameter setting command of the upper computer. The upper computer, the battery management system and the battery simulator are connected through a CAN bus. The invention can simulate and output the voltage, temperature and current information of the battery and provide a comprehensive test platform for debugging, calibrating, diagnosing and testing the battery management system.

A flexible integrated test system of dynamic and static properties of a combination automotive body-in-white comprises a portal frame, a support restraint device, an adjustable concentrated force loading device, a torsion pendulum frame loading device and a measuring appliance assembly. The support restraint device for supporting the automotive body-in-white to be tested is fixed on the portal frame, the measuring appliance assembly is fixed on the portal frame by a support or directly fixed on the portal frame, the adjustable concentrated force loading device and the torsion pendulum frame loading device which loads stress on the automotive body-in-white to be tested are fixed on the portal frame or arranged on the peripheral side of the portal frame. The flexible integrated test system of dynamic and static properties of the combination automotive body-in-white has the advantages of simple and compact structure, reasonable layout, convenient operation, comprehensive function, wide application and good expansibility.

The testing device is in use for measuring photoelectric properties of photovoltaic conversion materials and parts. In the device, xenon lamp simulates sunlight source. Optical fiber (21) of guiding light beam connects grating monochromator with xenon lamp, and optical fiber (22) of guiding light beam connects grating monochromator with testing dark box, where there are photocell and sensor of photometer inside. Output end of photocell is connected to voltage/current meter. Output end of sensor of photometer is connected to photometer. Output ends of photometer and voltage/current meter through data acquisition interface is connected to computer for in site measuring luminous intensity irradiated on photocell. Sensor of photometer is placed on the position the photocell located.

The invention relates to an integrated testing system for aviation fuel accessories. The integrated testing system comprises an electric control cabinet, a mechanical operating platform, an integrated pump station, a flow proportion testing platform, a pneumatic testing system and a fuel testing system, wherein the mechanical operating platform is connected with a pressurizing oil delivery gas storage tank through the pneumatic testing system; the integrated pump station is connected with the fuel testing system through an oil delivery pipeline; the pneumatic testing system is connected with the fuel testing system through a pneumatic pipeline; the flow proportion testing platform is connected with a pressure refueling joint testing oil tank; and the electric control cabinet is electrically connected with the mechanical operating platform, the integrated pump station, the flow proportion testing platform, the pneumatic testing system, the fuel testing system, the pressurizing oil delivery gas storage tank and the pressure refueling joint testing oil tank. The integrated testing system can perform performance test on all accessories of an aircraft fuel system, is high in integrity,convenient to maintain, compact in structure, small in occupation area and low in cost and expenditure, and is in accordance with specific using environment and support conditions under the field condition of an aviation equipment support army.

The invention discloses a comprehensive test bed and method for power systems and controllers of electric vehicles. The comprehensive test bed integrates an alternating-current dynamometer, a battery simulator/tester and a test bed monitoring system, integrates a drive motor and controller, a power battery and management system, a temperature and humidity control cabinet, a water-cooling circulator, a power analyzer, a torque flange, a current sensor, a data acquisition system and other equipment and testing instruments and integrates a controller quick control prototype system, a CAN communicating and monitoring equipment and the like. The test bed can be used for comprehensive test of power units and controllers of the electric vehicles as well as various power systems adopting pure electric power, hybrid power and the like. The comprehensive test bed has the characteristics of feasible scheme, use convenience and complete functions, a user can modify the structure and the function of the test bed conveniently, the comprehensive utilization rate of the test bed is increased, and the comprehensive test bed is wide in application and has great popularization value.

The invention relates to an external mounted electric combined test car comprising a driver's cab and a rear carriage which door is disposed at the tail. A frame is arranged along one side of the carriage body of the rear carriage and is provided with a plurality of test apparatuses which are used by the electric transmission and transformation equipment for field test and condition repair test. An opening is provided on the frame and test apparatuses side of the car body. Correspondingly to the opening, a sliding door capable of being opened outwards is installed on the opening. All the backboards of the test apparatuses are arranged outwards, the test apparatuses can be directly connected with the device to be tested only by opening the sliding door while in field test, thereby, the space outside the car can be sufficiently utilized, the inconvenience and narrow space of the external mounted test car are overcome, meanwhile, a whole operation cabin can be provided for the car.

The invention discloses a comprehensive test platform for the dynamic performance of a hydraulic cylinder of an engineering machine. The comprehensive test platform for the dynamic performance of the hydraulic cylinder of the engineering machine comprises a test platform body, a hydraulic system and an electrical test control system. The hydraulic system comprises a drive system unit and a loading system unit. The drive system unit comprises a first hydraulic pump, a first filter and three liquid inlet valve banks. Oil outlets of the three liquid inlet valve banks are connected with an oil inlet of the tested hydraulic cylinder. The loading system unit supplies oil to a loading hydraulic cylinder. The electrical test control system controls all the valve banks of the hydraulic system according to feedback signals. According to the comprehensive test platform for the dynamic performance of the hydraulic cylinder of the engineering machine, a drive system, a loading system and a gas-liquid supercharging system which are independently arranged are used for meeting test and control needs under different loads and different working conditions; and the comprehensive test platform also utilizes the feedback signals to control the test process, when the oil pressure, the flow, the filter precision, the system temperature and other indexes are not at the normal level, the system gives out an alarm to remind people and stops, and therefore system operation reliability is guaranteed.

The invention provides a guided missile ground comprehensive test device and method based on a wireless network, and relates to the field of guided missile ground tests. The problems that full-automatic tests cannot be achieved through an existing guided missile test system and the test system is large in size, poor in portability, complex in test process, low in efficiency and the like are solved. The device is composed of a remote ground monitoring device and a ground automatic test device, wherein the two devices can be in communication through radios, and the communication distance can reach several kilometers. The remote ground monitoring device is used for sending a test instruction to the ground automatic test device and receiving test process data fed back by the ground automatic test device, and is used for data storage. The ground automatic test device automatically completes communication tests, self-inspection tests and the like according to the test instruction sent by the remote ground monitoring device. Compared with a traditional guided missile ground test system, the device has the beneficial effects of being small in size, small in weight, simple in test process, high in efficiency, short in guided missile test and launch time interval, safe to use, and the like.

The invention discloses a comprehensive underground test method for deformation and damage of terranes of mining top plate and mining bottom plate of a coal bed, comprising the following steps of: (1) constructing a comprehensive test system; (2) utilizing a network parallel electrical method to synchronously collect test electrode supply current and potential signal in boreholes of the top plate and the bottom plate, thus obtaining the electric field distribution situation between the top plate and the bottom plate of the working face in a control area; (3) respectively extracting the electric field parameter distribution situation of rock masses, the seismic velocity distribution situation and the displacement variation of terranes at different places in the borehole in the control area according to the collected data characteristics of various geophysical fields; (4) dynamically obtaining the parameter change of the geophysical fields in a detected area at different time along with the advancing state of the working face; and (5) completing the installation and sealing of facilities in the tested borehole before the stoping of the coal face. The method precisely masters the damage situation of the rock masses, thus not only delimitating the deformation and damage distribution situation of rock masses in the control area, but also precisely determining the water-guiding fissure zone height of the covered rock masses of the top plate and the damage depth value of the bottom plate.

The invention discloses a comprehensive test device for an automobile starter. The device comprises a simulation battery, a test mechanical device, a dynamometer machine, a data acquisition module and an industrial control part, and can perform an electromagnetic switch test, a characteristic curve test, a work performance test and a durability performance test. The equipment has high measurementprecision, is convenient to operate, and is an important innovation in automobile starter measurement equipment.

The invention discloses a laboratory simulation detection device for a low-voltage meter reading system and aims to provide the laboratory simulation detection device for the low-voltage meter reading system, wherein the laboratory simulation detection device can carry out comprehensive test on all independent collecting equipment of the low-voltage meter reading system and the whole low-voltage meter reading system and can evaluate the data collecting and communication ability of the low-voltage meter reading system under the site environment in the laboratory environment. The laboratory simulation detection device comprises a to-be-detected product group, an equipment basic-parameter testing unit, a carrier wave launching testing unit, a receiving sensitivity testing unit, an interference signal simulation module, a relay routing simulation module, a reactive power compensation simulation module, a line impedance simulation module, a testing unit and simulation module control system, a testing device master station platform, a testing device master station control software and a power supply. In the laboratory simulation detection device, the software simulation technique and the hardware simulation technique are adopted to carry out the comprehensive test on all the independent collecting equipment of the low-voltage meter reading system and the whole low-voltage meter reading system, and the data collecting and communication ability of the low-voltage meter reading system under the site environment can be evaluated under the laboratory environment.

The invention relates to a leakage breaker combined test bench. It comprises a AC adjustable voltage power and an adjustable current power; it also comprises a picking-up device, an electrode touching device, a positioning device, a breaker gear and a controlling circuit; the picking-up device comprises a motor and a mechanism device derived by motor or liquid pressure; the positioning device comprises a space limiter fixed on the lifting gear and is used to fix the tested breaker; the electrode touching device comprises a motor, a liquid pressure driver or a device which is controlled by the electromagnetic means and connects the power electrode and the tested breaker end; the breaker gear comprises a device derived by liquid pressure, motor or electromagnetic means and is used to drag the hand of the tested breaker; the controlling circuit comprises an electric controlling wire which uses computer to connect each motivating circuit.

A voltage detector is combined with a test instrument probe to provide an indication of the presence of a.c. voltage when the test instrument probe approaches or comes in contact with a source of a.c. voltage.

The invention discloses a simulated experiment testing method of gas hydrate in a porous medium. The method mainly comprises an experimental and measured data acquiring step and a measured signal analysis processing step, and specifically comprises generating the gas hydrate in the porous medium in a reaction vessel, increasing temperature step by step, decomposing the gas hydrate, acquiring the temperature, the pressure, and the electric and acoustic signals of different test points in a decomposition process, computing the saturation of the gas hydrate according to the temperature and the pressure, and establishing gas hydrate saturation models based on acoustic characteristics, electric characteristics, and acoustoelectric fusion characteristics respectively. The acoustoelectric combined test method achieves safe and radiation-free signals and low system interference, provides an effective detection technical means for the research of the dynamics law of a natural gas hydrate generation/decomposition process and a spatial distribution state change rule of phase materials in the porous medium, and provides a theoretical base for development of new logging technology.

The present invention discloses a vehicle-borne display device comprehensive testing device which comprises a testing master control machine for managing a test case and analyzing a testing result, a man-machine interface testing module which is connected to the testing master control machine, simulates a man-machine interaction screen touch operation according to the test case, obtains the output image of a tested display device, and analyzes the man-machine interaction display function and reliability of the tested display device, a communication interface testing module which is connected to the testing master control machine, monitors the operation state of the tested display device and analyzes the communication reliability and stability of the tested display device, and the tested display device which is connected to the man-machine interface testing module and the communication interface testing module. The invention also discloses a testing method, according to testing requirements, a code white box test, a man-machine interaction test and a communication interaction test are executed, the testing result data is analyzed, and a testing report is outputted. Complex communication and electrical environments can be simulated, the degree of automation is high, and the test coverage is wide.