35results about How to "Flexible and convenient testing" patented technology

The invention discloses a test system and method of a data-driven rail traffic vehicle-mounted operation control system, belonging to the technical field of rail traffic signal system test. The test system comprises a test management module, a test execution module, a test interface adaption module and a test analysis and assessment module and is connected with a tested vehicle-mounted operation control system by the test interface adaption module, wherein the test management module finishes the functions of storing, modifying and configuring test data, the test execution module finishes the function of executing the test data, the test analysis and assessment module finishes the functions of recording, treating, analyzing and assessing the test data, and the test interface adaption module finishes the functions of adapting to the interface characteristics of real tested vehicle-mounted equipment and interacting practical information with the tested equipment. The invention can be conveniently used for various types of tests on the vehicle-mounted equipment of a train operation control system, wherein the tests comprise function test, interconnection test and the like; and in addition, the invention has good popularity and flexibility.

The invention provides a mobile wind turbine generator system high-low voltage ride through test device, which is applicable to high-voltage system tests and low-voltage system tests simultaneously, the test device is connected in series between a wind turbine generator system and a power network, and mainly comprises an input breaker, a voltage regulation unit, a bypass breaker and an output breaker. By adopting a transformer secondary side multi-tap voltage regulation mode, for thyristor high-speed switching control as well as a vehicle-mounted container structure, transformer output voltage is changed through controlling the on-ff of a thyristor, and thus a simulation test of different voltage class failures of a wind turbine generator system to be tested is achieved. By using the mobile wind turbine generator system high-low voltage ride through test device provided by the invention, high-low voltage ride through tests can be accomplished simultaneously, and the device has high integration, high reliability and highest economic and technical norms; the device can be applied to testing various types of wind generators, meet high-low voltage ride through test criteria in China as well as countries in Europe and America, and has a wide application range; and the device adopts a vehicle-mounted container structure, adopts a modular design, is convenient to transport and is flexible in testing.

The invention relates to a soil bin test trolley. The soil bin test trolley includes a soil bin system, a test tractor and a double-wheel test device; the front end of the test tractor is provided with the double-wheel test device; and the test tractor and the double-wheel test device perform reciprocating motion along the soil bin system. With the soil bin test trolley of the invention adopted, the stress-strain of a tire and mechanical parameters of agricultural implements such as a plough and a rotary cultivator under different experimental factors can be tested, and the problem of influence of the vibration of traction equipment on measurement results existing in an existing test system can be solved. The soil bin test trolley has the advantages of controllability of test conditions and environmental factors, convenient measurement of test data and parameters, high measurement precision, high test repeatability, high driving ability, accurate and reliable control, flexible and convenient test and coherent data acquisition.

The invention discloses a winding machinery state diagnosis method and system based on transformer noise. The winding machinery state diagnosis method comprises steps of collecting noise signals and current signals of a transformer at two different operation times, calculating a transfer function according to an auto-power spectrum of noise signals and the current signals of the transformer at the two different times, selecting an appointed frequency band to calculate amplitude frequency characteristic correlation coefficients of the transfer function at two different operation times according to the transfer functions of the two different operation times, performing matching on the amplitude frequency characteristic correlation coefficients and a preset diagnosis rule table, and outputting a matched winding machinery state diagnosis result, wherein the diagnosis rule table comprises a value interval of the amplitude frequency characteristic correlation coefficients and a corresponding winding machinery state diagnosis result. The winding machinery state diagnosis based on the transformer noise comprises a program module corresponding to the winding machinery state diagnosis method. The winding machinery state diagnosis method and system of the invention do not contact with live equipment, have high safety, do not affect normal operation of the equipment and are easy and flexible in testing.

The invention discloses an experimental system for measuring propagation speed of a laminar premixed flame under high pressure. The experimental system is fixed to a rack, a laser and an ICCD camera are arranged at the positions, opposite to two observation windows, on a high pressure cavity, and the ICCD camera is connected with a computer. A constant pressure valve is arranged at the top of the high pressure cavity, a high-pressure nitrogen connector and a nozzle are arranged at the bottom of the high pressure cavity, and the high pressure cavity is inflated with high-pressure nitrogen through the nitrogen connector. Preheated oxidants and preheated fuel are sprayed into the high pressure cavity through the nozzle after passing through a premixer, premixed gas is ignited by a sparking plug, and the numerical value of a volume flowmeter is read. The propagation speed of the laminar premixed flame is calculated according to the numerical value of the volume flowmeter and the area of an outlet of the nozzle. The laminar premixed flame propagation speed under different equivalence ratios is acquired by adjusting the flow of the oxidants and the fuel. The laminar premixed flame propagation speed under different environmental pressures is acquired by changing the pressure of the high pressure cavity. Flame component distribution diagrams and temperature profiles under all work conditions are acquired through a PLIF system.

The invention discloses a VPX digital signal test device comprising a shell, transfer printed boards, and a signal transfer board. The transfer printed boards are inserted into printed board slots of the shell in sequence. The signal transfer board is inserted into a Vita plug connector of one transfer printed board through a Vita socket connector. A backplane signal is led out to the exterior of a VPX case for test through the transfer printed boards. Different transfer printed boards are connected with all signal test points. Radio frequency signals are transmitted to external test equipment through a radio frequency connector of the signal transfer board. The shell of the device is designed according to a Vita standard sub board module, and can be flexibly inserted into the VPX case. The VPX digital signal test device has the advantages of no need to disassemble the case, flexible and convenient test, high versatility, cost saving, and higher efficiency.

The geological radar measurement complex ground deposit deformation measurement comprises the selection and tin foil with relatively big dielectric constant difference with the bank land to be tested, setting a fixed point at the tin foil area with the deformation of the point known or being able to be measured, connecting the tin foil with the structural material that usually uses pile for treatment with deposition small or zero, to get the deposit of the ground combining with the geological radar testing material, when there are structural objects close to the observation area. When the observation area is linear, it can set 1-2 deposit observation point at the local route together with the tin material, using level gage controlling the deformation of the point, combining with the general analysis of the complex ground deposit material to calculate the precise deformation of the ground.

The invention relates to an auxiliary measuring rod for converter valve conduction tests. The auxiliary measuring rod is applied to a situation in which a test instrument performs conduction tests on a plurality of thyristors in a converter valve. The auxiliary measuring rod comprises a rod head, a rod body and a handle which are successively connected with one another; the rod head is of a hollow U-shaped structure; the rod body is a hollow telescopic rod; the interior of the telescopic rod is communicated with the interior of the rod head; two top ends of the rod head are respectively provided with a contact end; and the contact ends respectively pass through the interiors of the rod head and the telescopic rod sequentially through wires so as to be connected with the test instrument. Compared with the prior art, the auxiliary measuring rod of the invention has the advantages of convenient and flexible testing, simple structure, convenient operation as well as being safe and reliable.

The invention discloses a driving active service system (DASS) testing and verification platform and a testing method thereof. The platform comprises a road testing system, an upper management center,a standardized DASS and a driving simulation platform, wherein the road testing system is used for actual performance testing on a testing field of a tested DASS; the driving simulation platform is consistent with the testing environment of the road testing system; the standardized DASS provides a testing standard for the driving simulation platform; the upper management center is used for building of the driving simulation platform driving environment, and storage, processing, analysis and evaluation of road and driving simulation testing results; and the testing data of the road testing system and the driving simulation platform are transmitted to the upper management center, and the upper management center processes and analyzes the stored information and obtains a testing result. Function verification and performance evaluation of the driving active service system can be studied, and besides, by using the platform, the influences of driving of an intelligent car mounted with the DASS on a mixed traffic flow can be studied and evaluated.

The invention provides a low-voltage load test method and device. The method comprises the following steps of selecting an instation power supply as a benchmark, powering a single-phase riser instrument and a single-phase voltage regulator by utilizing the power supply, primarily increasing the current of a CT of a device to be tested by utilizing the single-phase riser instrument, and secondarily boosting the voltage of a PT of the device to be tested by utilizing the single-phase voltage regulator; acquiring the phase of the input current and the output current of the single-phase riser instrument, calculating the phase difference, and judging whether the phase difference stays within the predetermined range; acquiring the phase of the input voltage and the phase of the output voltage of the single-phase voltage regulator if the phase difference stays in the predetermined range, calculating the phase difference, and judging the phase differences stays in a predetermined range; switching the voltage to a relay if the phase difference of the input voltage and the output voltage stays in the predetermined range, calculating the phase difference between the voltage and the current of the phase of the device to be tested, and determining whether the polarity of a current loop and a voltage loop is correct or not according to the phase difference. The test method is flexible, convenient, strong in practicability, high in working efficiency and capable of guaranteeing the safety of the system.

The present invention provides a power module HTRB (high temperature reverse bias) reliability test system. The system comprises a cabinet as well as a control mechanism and test module sets, the control mechanism and the test module sets are arranged on the cabinet, the control mechanism is in communication connection with the test module sets; the control mechanism includes a main controller disposed on the cabinet, an input / output module connected with the main controller and a test module connected with the main controller; and each test module set includes a control detection circuit, a power source module and at least one drawer type superconducting thermostatic bath structure, wherein the control detection circuit and the power source module are disposed on the cabinet and are in communication connection with the test module, the at least one drawer type superconducting thermostatic bath structure is connected with the control detection circuit and the power source module, the at least one drawer type superconducting thermostatic bath structure is used for accommodating an IPM (Intelligent Power Module) or an IGBT (Insulated Gate Bipolar Transistor) module, and the control detection circuit and the power source module are used for performing control testing on the IPM or IGBT module. The power module HTRB (high temperature reverse bias) reliability test system provided by the invention is suitable for IPM and IGBT electrical reliability test. The operability, stability and efficiency of the system all satisfy the requirements of large-scale production.

The invention relates to the field of industrial robots, in particular to an industrial robot safety plate circuit test platform. The platform comprises an external test box; the platform further comprises an input module for inputting data of a to-be-tested element and transmitting a servo confirmation signal, a control module used for controlling a safety output circuit through a logical operation function of a safety plate arranged on a guide rail of the test box, an execution module which outputs an operation instruction after receiving a safety signal when the safety signal is outputted.Electric control loops of an emergency stop button, a safety door lock, a safety optical grating and a hand pressing switch are all designed to be double-channel loops; a dual-channel control mode with a relatively high safety level is used; and the requirement on the performance of the safety element is higher, so that a test result is safer and more reliable; the to-be-tested safety element is convenient to install, only a corresponding interface needs to be connected, programming is not needed; the element is convenient to replace; the whole platform is simple to build, is lower in cost, and can conveniently and flexibly test the safety element.

The invention discloses a testing platform and method for a wind power converter chopper device. The testing platform comprises a power grid access interface, a first isolation transformer, a second isolation transformer, a double-feed converter and a machine side breaker, wherein the power grid access interface is externally connected with a power grid, and is connected with one ends of the first isolation transformer and the second isolation transformer; the other end of the first isolation transformer is connected with the line side of the double-feed converter; the other end of the second isolation transformer is connected with the machine side of the double-feed converter through the machine side breaker; during a test, the power grid access interface, the first isolation transformer, the second isolation transformer and the machine side breaker form a power test loop which is connected with the chopper device to be tested through the double-feed converter. According to the invention, the low voltage ride-through failure is simulated through software to test the electrical performance of the chopper device, so that the test is flexible, convenient, economical and practical, and has good application prospect.

The invention discloses a three-axis clamping device applicable to a high-temperature and low-temperature cycle and a medical CT (Computerized Tomography) machine. The three-axis clamping device comprises an outer barrel body, and further comprises a first oil injection part and a second oil injection part, wherein a barrel-shaped first inner connection part and a barrel-shaped second inner connection part sleeves oil outlet ends of the first oil injection part and the second oil injection part respectively; a fluorine rubber sleeve is located in the outer barrel body and two ends sleeve the first inner connection part and the second inner connection part respectively; a test sample, and a first clamping piston and a second clamping piston which are located at two sides of the test sampleare arranged in the fluorine rubber sleeve; the outer barrel body is provide with an oil / gas connector. The three-axis clamping device disclosed by the invention is simple in structure and compact instructure; a test sample loading process is simple and has high operability; the three-axis clamping device is small in size and can be put into the medical CT machine to carry out computerized tomography; the fluorine rubber sleeve is used as a rock sample packaging material and the material has good sealing performance and a high pressure-bearing capability under a low-temperature condition so that the three-axis clamping device is applicable to high-temperature and low-temperature cycle testing conditions.

The invention discloses a water seepage testing device for an optical cable, and the device comprises a stainless steel water tank, a water pipe, and elastic connection hoses. A main water pipe is vertically disposed at the center of the upper surface of the stainless steel water tank, and a plurality of branch water pipes are disposed between the upper and lower parts of the stainless steel water tank in a parallel manner. The plurality of elastic connection hoses are disposed at the lower part of the stainless steel water tank. The device is simple in structure, is reasonable in design, is high in practicality, is low in manufacturing cost, and is solid and durable. The device is simple and convenient for use, irons out a defect that a conventional device just can carry out the testing of the water seepage of one optical cable, can carry out the testing of multi-batch and multi-type optical cable samples at the same time, and improves the testing efficiency. During testing, the device effectively controls the heights of water levels of the water pipes, improves the accuracy of a testing result, and is suitable for wide popularization and application.

A method for testing vertical direction resistance of a fuel cell catalyst layer comprises the steps of: separately testing a gas diffusion layer resistance and a gas diffusion electrode resistance byan electrochemical workstation, and subtracting the gas diffusion layer resistance from the gas diffusion electrode resistance to obtain a vertical resistance of the catalyst layer. The beneficial effects are as follows: the test conditions are the same as the membrane electrode test environment, the data is real and reliable; the test environment is adjustable, and for different demand tests, the test is flexible and rapid; the same clamp test is used without the errors caused by different clamps; and moreover, the data can be applied to the simulation model or the theoretical calculation tohave an important meaning for the positive development of the membrane electrode.

The invention discloses an armature insulation and voltage resistance testing device, which comprises an insulation and voltage resistance tester, an upper computer, a voltage switching device and an armature voltage applying device, and is used for detecting the voltage resistance performance and the insulation performance among all commutator segments of an armature. The armature insulation and voltage resistance testing device is simple in control process, does not leave a trace on a commutator, does not damage a probe, and can test the insulation and voltage resistance performance between any commutator segments flexibly, conveniently and efficiently.

The invention provides a low-voltage load test method and device. The method comprises the following steps of selecting an instation power supply as a benchmark, powering a single-phase riser instrument and a single-phase voltage regulator by utilizing the power supply, primarily increasing the current of a CT of a device to be tested by utilizing the single-phase riser instrument, and secondarily boosting the voltage of a PT of the device to be tested by utilizing the single-phase voltage regulator; acquiring the phase of the input current and the output current of the single-phase riser instrument, calculating the phase difference, and judging whether the phase difference stays within the predetermined range; acquiring the phase of the input voltage and the phase of the output voltage of the single-phase voltage regulator if the phase difference stays in the predetermined range, calculating the phase difference, and judging the phase differences stays in a predetermined range; switching the voltage to a relay if the phase difference of the input voltage and the output voltage stays in the predetermined range, calculating the phase difference between the voltage and the current of the phase of the device to be tested, and determining whether the polarity of a current loop and a voltage loop is correct or not according to the phase difference. The test method is flexible, convenient, strong in practicability, high in working efficiency and capable of guaranteeing the safety of the system.

The invention discloses a detachable modular VPX signal test fixture. The detachable modular VPX signal test fixture comprises a front insertion module and a rear export module, the rear export moduleand daughter boards are the same in appearance, and the rear export module is provided with a backboard connector; and single-ended, differential, microwave or power supply VPX connectors with different functions are arranged in the front insertion module, and the sliding rail of the front insertion module is inserted into a slot of the rear export module, so that the VPX connector is electrically connected with the backboard connector. The rear export module is inserted into a VPX case, the backboard connector of the rear export module is electrically connected with the backboard of the VPXcase, signals are led out to a test instrument through the VPX connector, and then signal characteristics of connection between the backboard and the daughter boards or between the daughter boards inthe case can be detected. The VPX connectors with different functions such as single-ended, differential, microwave or power supply are arranged in the front insertion module, so that multiple functions of the VPX case can be tested.

An experimental apparatus and a method for testing gas-sensitive temperature characteristics of a carbon nanotube sensor belong to the technical field of nanotube sensor characteristic test. The apparatus of the invention mainly comprises a quartz glass tube, a gas flow indicator, ceramic heating plates, a thermal resistor probe, an AC voltage regulator, a digital display thermometer, an impedance analyzer and a vacuum pump, etc. The method of the invention utilizes the apparatus to test the gas-sensitive temperature characteristics of the carbon nanotube sensor to be tested to different gases, at different flow velocities and different temperatures. The invention has characteristics of flexible and convenient detection, high reliability, high precision, good security, simpleness, convenience and easiness for popularization and application. The invention can be widely applied to test analysis and application of gas-sensitive temperature characteristics of the carbon nanotube sensor inscientific research, teaching and manufacture.

A method for testing vertical direction resistance of a fuel cell catalyst layer comprises the steps of: separately testing a gas diffusion layer resistance and a gas diffusion electrode resistance byan electrochemical workstation, and subtracting the gas diffusion layer resistance from the gas diffusion electrode resistance to obtain a vertical resistance of the catalyst layer. The beneficial effects are as follows: the test conditions are the same as the membrane electrode test environment, the data is real and reliable; the test environment is adjustable, and for different demand tests, the test is flexible and rapid; the same clamp test is used without the errors caused by different clamps; and moreover, the data can be applied to the simulation model or the theoretical calculation tohave an important meaning for the positive development of the membrane electrode.