83results about How to "Simple test system" patented technology

The invention discloses a large building deformation monitoring device and a monitoring method through the large building deformation monitoring device. A laser transmitter of the large building deformation monitoring device is composed of a laser controller, a laser power supply and a laser collimator, wherein the laser controller is connected with the laser power supply, and the laser power supply is connected with the laser collimator. A laser receiver is composed of a semi-permeable laser target, a light shield, an image sensor, and an attitude sensor, wherein the semi-permeable laser target is connected with the light shield, the light shield is connected with the image sensor, and the image sensor, the attitude sensor and a wireless transmitter are respectively connected with a microprocessor, and therefore the large building deformation monitoring device is formed. The method monitoring method through the large building deformation monitoring device includes that the laser transmitter is mounted at a reference position which is close to an object to be tested and is relatively fixed; the laser receiver is mounted at a point to be tested on a deformation surface; and the linear displacement, perpendicular to the deformation surface, of the laser receiver is the deformation value of the point. According to the large building deformation monitoring device, laser is utilized for testing deformation, and therefore the large building deformation monitoring device is convenient to install and test, high in accuracy, and suitable for long-time on-line monitoring of the deformation of large buildings.

The invention discloses a method for testing the handling capacity of CPE (customer premises equipment). The method comprises the following steps: (a) connecting the CPE with a personal computer (PC) through a wireless access point (AP); (b) integrating the CPE with a flow test tool client and installing a flow test tool server on the PC; and (c) running the flow test tool client on the CPE and the flow test tool server on the PC to carry out wireless communication and test the handling capacity. The method for testing the handling capacity of the CPE provided by the invention has the advantages that the flow test tool client is integrated in the CPE so that the test system is simplified, and consequently, a test environment can be established conveniently to meet the test requirements of a plurality of sets of CPE and the test requirements of long distance.

The invention provides a simple and practical indoor polarization scattering measurement system, which is used for obtaining high-polarization-purity scattering data based on a vector network analyzer. The indoor polarization scattering measurement system is formed by the vector network analyzer, antennas, a main control computer, a microwave shielding darkroom and a turntable control cabinet. By filling a part of absorbing materials between the antennas, influence of mutual coupling between the antennas is reduced physically;and after converting broadband step frequency domain data to a time domain, near-end antenna mutual coupling signals are removed by utilizing selectivity of a time domain wave door. High-purity target polarization scattering characteristic data is obtained through a method of setting appropriate parameters and the like for the step frequency signals, and polarization data purity is higher than 45 dB; and the polarization scattering measurement system is simplified, and a lot of production cost is reduced.

The present invention provides a method, apparatus and system for measuring RF line loss. The method includes the steps as follows: controlling a measuring instrument to emit a first power signal; controlling a power measuring apparatus to acquire a second power signal outputted by a RF line to be measured after the RF line receives the first power signal; analyzing and calculating the first power signal and the second power signal so as to obtain the line loss of the RF line to be measured. According to the scheme provided by the invention, the power signal of the input RF line and the power signal of the output RF line are directly analyzed and calculated so that the line loss is acquired without experience depending, and the acquired line loss is accurate. A gold machine is needless so that the measuring system is simplified, the cost is reduced, the better human-computer interface is provided, the operation is simple, the user experience is improved, and the requirement for acclimatizing various products is met.

The invention discloses a method and device for testing mechanical parameters of a thin-walled pipe fitting. The method is characterized by comprising the following steps: slowly filling high-pressure liquid into the thin-walled pipe fitting of which an outer wall is attached with a strain gage by utilizing a high-pressure pump, and recording the axial and peripheral strain of the outer wall of the thin-walled pipe fitting in the loading and unloading processes by adopting a strain meter; performing linear fitting on the test data by using a least square method, and accurately obtaining the yield strength, the elasticity modulus, the Poisson's ratio, the internal pressure-resistant yield strength and the internal pressure-resistant burst strength of the thin-walled pipe fitting based on a mechanics principle for testing the mechanical parameters of the thin-walled pipe fitting as well as an internal pressure-axial strain curve and an internal pressure-peripheral strain curve obtained through fitting. The device is simple in structure and low in manufacturing cost and is suitable for testing and researching the mechanical parameters of the thin-walled pipe fitting.

The invention discloses a monitoring system of an omnibearing distributed coal-gangue-mountain spontaneous combustion prevention and a method thereof. Through constructing an omnibearing distributed monitoring system, an internal temperature of a coal gangue mountain is monitored in real time, a corresponding technology parameter is acquired and coal-gangue spontaneous combustion is prevented. In the invention, through using a novel sensing test technology (a distributed fiber sensing test technology), a test device is improved and a set of complete coal-gangue-mountain spontaneous combustion prevention test method is acquired; and by using the acquired technology, good safety guarantee can be provided for aspects of coal-gangue spontaneous combustion prevention and fire extinguishing processing.

The invention relates to an energy storage and release test system and method for a non-ideal solid-liquid phase change material. The system includes: an energy storage device, a non-ideal solid-liquid phase change material, a fixed clamp, an inlet hose, an outlet hose, a first hose clamp, a second hose clamp, a third hose clamp, a fourth hose clamp, an inlet three-way ball valve and an outlet three-way ball valve. Through cooperative use of the rotatable fixed clamp, the inlet hose and the outlet hose, comparison test of the non-ideal solid-liquid phase change material's energy storage and release characteristics under vertical and horizontal conditions can be realized very conveniently. By arranging temperature thermocouples on a plane at a 1 / 2 height of an energy storage pipe and one radial section, the number of temperature thermocouples is greatly reduced under the circumstance of ensuring a reliable measurement result. Therefore, the invention provides a comprehensive energy storage and release test system and method for a non-ideal solid-liquid phase change materials.

A method for testing the performance of a renewable energy and gas powered multi-energy complementary heating system includes the following steps: (1) setting the temperature, pressure and flow test points according to the connection mode and operation mode of each heating unit, and collecting operation state parameters in real time; (2) determining the performance test points and test parametersof a multi-energy complementary heating system suitable for different heating unit combinations and operation modes; (3) putting forward a calculation method of the heating quantity of the system; (4)putting forward user heat gain test indexes and a calculation method; (5) testing the primary energy utilization rate of the system; and (6) calculating each test index of the multi-energy complementary heating system based on the calculation steps and methods. Three types of heating units, namely, a solar energy collector, an air source heat pump and a gas heating water heater, are integrated. The technical indexes and calculation methods used for performance test and effect evaluation are put forward and defined. The performance test and technical evaluation of a multi-energy complementaryheating system based on any combination are realized.

The invention discloses an internal-pressure-cylinder pressure testing method and a system, and belongs to the technical field of examination equipment. According to the method, a solid elastic material is employed for replacing a conventional compression medium, and the solid elastic material is processed into a cylindrical compression body and is put into a test cylinder, the compression body generates radial expansion under the axial compression force and stresses the test cylinder, and an expected internal pressure and a loading process are obtained by controlling the loading speed of a press. If the test cylinder fails during an experiment, because the compression body is easily compressed, the pressure in the test cylinder rapidly decreases, and a large amount of energy is absorbed by the compression body. Therefore, the destroying capability of the residual energy to test on-site equipment and personnel is substantially reduced.

The invention discloses a test system, and a test method and device. The test system comprises a display port DisplayPort receiving end to-be-tested device, a plurality of DisplayPort sending end mainchips and a microcontroller. The system comprises: detecting whether a test instruction triggered by a test operation is received; selecting a target DisplayPort sending end main chip from the plurality of DisplayPort sending end main chips after the test instruction is received, wherein the target DisplayPort sending end main chip is used for sending a test signal to the DisplayPort receiving end to-be-tested device; comparing whether the test signal is consistent with a target test signal after the DisplayPort receiving end to-be-tested device receives the test signal, and obtaining a comparison result; and allowing a microcontroller to determine whether the test operation is successful according to the comparison result. The invention solves the technical problem of low test efficiencycaused by a complex test system and long calibration time in the related art.

The invention discloses a test system for the seepage situation of fused salt leaked from a photo-thermal power generation and heat storage system in a foundation. The system comprises a pot body filled with foundation material; a heating plate positioned above the pot body and can be lifted up and down; a temperature control device connected with the heating plate; a crucible placed on the top ofthe foundation material and provided with a leakage hole; multiple temperature sensors inserted into the foundation material, wherein the temperature sensors are spirally distributed along the axialdirection of the pot body at different heights, and used for detecting the depth of the seeped fused salt, the temperature sensors are also circumferentially distributed on the same height, temperature measurement points have different distances with a central axis, and the temperature sensors are used for detecting the width of the seeped fused salt. Based on the test system, the invention also discloses a test method for the seepage situation of the fused salt leaked from the photo-thermal power generation and heat storage system in the foundation. According to the system and method providedby the invention, the seepage situation of the different types of leaked fused salt in the foundation at the different operating temperatures can be measured when the fused salt pot is leaked.

The invention discloses a phase center far-field calibration method of a satellite navigation array antenna. The invention provides an engineering implementation scheme for defining, testing and correcting the phase center of the array antenna. Meanwhile, the far-field accurate calibration of the electric phase center of the array antenna based on the real satellite navigation signal is realized through an original five-degree-of-freedom test turntable based on a microwave darkroom. Finally, the phase center offset and the phase center stability of the array antenna are obtained according to the calibration result of the electric phase center in the form of least square algorithm fitting, and the two parameters are used as parameter input of array antenna beam forming for correction, so that calibration of the phase center of the satellite navigation array antenna is realized. The method is simple and feasible, and has popularization and application values in the field of satellite navigation high-precision measurement in a complex electromagnetic environment.

Using characteristic of close relation between optical path change of coherent beam formed by a sensor header and current to be measured, the invention through phase relation of interference signals realizes the function for measuring current. Highlighted advantages of the invention are as follows. There is no limit of linear working space of system. Measuring sensitivity is adjustable based on physical circumstances so as to ensure measuring accuracy at both of large current and small current. The method of measuring current is based on optical path change of magnetic interference instead of existing technology depending on Faraday rotation effect, providing features of simple measuring system and no technical problem for controlling polarization in optical path. Comparing with prior art, the invention provides stable measuring result since its symmetrical optical path eliminates influence on the system caused by slow varying heat effect and surrounding vibration.

The invention discloses a method for measuring active phased-array antenna noise temperature. The method comprises the following steps: respectively measuring noise power of each of the beam pointing alignment sun of the active phased-array antenna and the beam pointing deviation sun of the active phased-array antenna, thereby computing the noise temperature of the active phased-array antenna system; and then upwardly pointing the beam of the active phased-array antenna, and placing the room temperature load at the aperture surface of the antenna to measure the noise power output by the system, computing the equivalent noise temperature of an active phased-array antenna receiver; and finally, computing the noise temperature of the active phased-array antenna according to the noise temperature of the active phased-array antenna system and the equivalent noise temperature of the receiver. The method disclosed by the invention is simple and applicable, and has promotion and application value.

The invention discloses a method and system for testing audio and video of a set-top-box, and relates to the technical field of test. The problem of complex structures of the test systems of the existing network access audio and video is solved. The main system comprises a digital TV signal source used for sending a digital TV signal; a to-be-tested set-top-box connected with the digital TV signal source; an audio and video measurement instrument and an infrared remote control module connected with the to-be-tested set-top-box respectively, wherein the audio and video measurement instrument is used for testing an audio and video signal sent by the to-be-tested set-top-box, and the infrared remote control module is used for transmitting an infrared signal to control the to-be-tested set-top-box; the audio and video measurement instrument is connected with a controller, and the controller is used for receiving a test result of the audio and video signal output by the audio and video measurement instrument; and the infrared remote control module is connected with a controller, and the controller is used for sending a control instruction to the infrared remote control module. The method and system disclosed by the invention are mainly applied to a process of testing the set-top-box.

The invention discloses a glutaminase micromolecular fluorescent probe with a general formula (I) and a preparation method and application of the glutaminase micromolecular fluorescent probe. The structural module of the probe comprises a glutaminase binding group, a linker chain and a fluorescent reporter group. The glutaminase micromolecular fluorescent probe can be used for high-throughput screening of glutaminase inhibitors and guiding discovery and structure optimization of the glutaminase inhibitors. By using the probe with the structure as a tool molecule, the binding condition of a micromolecular compound and a target protein can be rapidly and accurately confirmed.

The invention discloses a low-voltage automatic self synchronizing grid connection technique for a short circuit testing generator. The short circuit testing generator needing a parallel operation is sure to be driven by an asynchronous induction motor; the short circuit testing generator driven by a synchronous motor is not in the case of the invention; a plurality of units are in asynchronous operation in the initial period of grid connection; 10-20% of exciting currents are added to the multiple units simultaneously, and 20-30% of unit terminal voltage is established; the voltage phases of the units are different, so that ring current not exceeding a rated value is generated among the units; and the ring current generates synchronous torque, and the multiple units are driven to the synchronous operation within two seconds.

The invention relates to a system and method for azimuth element and distortion testing of an optical remote sensor. The system comprises a collimator, a photoelectric autocollimator, a test platform,and a data processing system. The data processing system determines n sets of test data according to a field angle of a to-be-tested optical remote sensor and determines an inner azimuth element of the to-be-tested optical remote sensor and camera distortion of the to-be-tested optical remote sensor according to an angular offset, obtained by testing by the photoelectric autocollimator, of the optical axis of the collimator and an imaging position of a collimator dividing plate at the to-be-tested optical remote sensor detector. The test platform changes the position of the collimator according to the test data, so that the included angle between the optical axis of the collimator and the optical axis of the to-be-tested optical remote sensor is equal to a testing rotation angle and the vertical distance between the center of the collimator objective lens and the optical axis of the to-be-tested optical remote sensor is equal to the test height corresponding to the testing rotation angle. Therefore, a problem that the traditional inner azimuth element testing device is not suitable for the long-focal-length wide-amplitude optical remote sensor having the entrance pupil position away from the lens is solved.

The invention discloses a distributed fiber temperature strain sensing system and method based on Brillouin scattering. A distributed feedback laser is adopted to emit continuous light with a narrow linewidth, the light is externally modulated by a photoelectric modulator into pulse light, an erbium doped fiber amplifier is adopted to amplify the pulse light, and then the amplified pulse light enters, as incident light, a sensing fiber so that a Brillouin backward signal in the fiber is obtained. The Brillouin scattering signal is obtained through a single-end input way, so it is convenient to install and use the system. Homologous heterodyne interferometry is adopted to demodulate the signal, thereby avoiding requirements of general interferometry for similarity of luminous intensity of two light beams and simplifying a testing system. Certain measures are taken to enhance the signal, so subsequent processing can be conducted. Meanwhile, changes of Brillouin frequency shift and intensity are obtained through application of an electric method, temperature and strain are demodulated, and temperature and strain are measured at the same time.

The invention discloses an antenna housing electrical performance test system and method for simulating a phased-array antenna, and the system comprises: a base which is provided with a rotating table used for adjusting the horizontal rotation angle of an antenna housing, wherein an output shaft of the rotating table is connected with a position adjustment mechanism, and the position adjustment mechanism is connected with an antenna through a rotation driving mechanism; and a position adjusting mechanism, wherein the position adjusting mechanism comprises a first direction position adjusting unit and a second direction position adjusting unit, and the position of the antenna is adjusted through the first direction position adjusting unit and the second direction position adjusting unit, so that the rotation center of the azimuth axis of the rotary table and the rotation center of the azimuth axis of the antenna are on the same straight line, and the phase center position of the antenna is not changed in the rotating process. A common antenna is adopted, and the phase center position of the antenna is ensured to be unchanged through two-axis adjustment, so that a phased-array antenna is simulated to carry out an antenna housing electrical performance test; and the test system is simple and low in cost, and can be compatible with the radome test of the non-phased-array antenna.

The invention provides a testing method for wheel loader energy efficiency. The method comprises the steps that a wheel loader right faces and is fixed to the front face of materials to be tested, and a first preset distance is reserved between the wheel loader and the materials to be tested; an auxiliary loading device is fixed to the side, where a second preset distance is reserved, between the materials to be tested; the wheel loader provided with an auxiliary fuel tank is controlled to shovel the materials to be tested, and the shoveled materials to be tested are loaded in the auxiliary loading device; the materials are weighed through first and second weighing devices respectively, and the fuel consumption amount of the auxiliary fuel tank and the weight of the materials, to be tested, loaded by the auxiliary loading device are calculated; according to the fuel consumption amount and the weight of the loaded materials to be tested, the energy efficiency value is calculated, a walking route is accurately regulated, the fuel consumption amount and the weight of the loaded materials to be tested of the regulated route are obtained through measurement, and the more objective and accurate calculation value is obtained. Therefore, the comparative result of the calculated energy efficiency value is more accurate, the operating energy efficiency level of wheel loaders of different enterprises can be measured more accurately, and the basis of selecting the loaders is provided for users.

The invention discloses a system and a method for detecting changes of differential pressure of a gas filter. The system is connected with the detected gas filter and comprises a system pipeline, a detection medium and multiple elements, the multiple elements are connected through the system pipeline, and the detection medium is a liquid working medium; the multiple elements comprise a storage box, a first purifying filter, a second purifying filter, a variable pump, a pressure gauge, a differential pressure sensor, a flow meter, a flow-limiting valve and an overflow valve. The liquid working medium is used for testing changes of differential pressure of the gas filter, the system pressure can be reduced, the test system can be simplified, the safety of the test can be improved, additionally, the preparation procedure for the detected product accessing to the system can be simplified, the test efficiency is improved, and the test cost is reduced.

The invention relates to the field of chemical biology, and particularly, relates to small molecular fluorescent probes (I) designed based on prolyl hydroxylase inhibitors. The structural modules of the probes include prolyl hydroxylase binding groups, connection chains and fluorescent reporting groups. The invention also discloses a preparation method of the probes. The prolyl hydroxylase small molecular fluorescent probes can be used for high throughput screening of the prolyl hydroxylase inhibitors, and guide the discovery and structural optimization of the prolyl hydroxylase inhibitors. Astool molecules, the probes with the structures can quickly and accurately confirm the binding condition of small molecules with target proteins.

The invention relates to a high-temperature and high-low cycle composite fatigue test system. According to the system, a low-cycle load is loaded through a hydraulic system, a high-frequency vibrationload (the highest frequency can reach 1000 Hz) is loaded through an electromagnetic vibration table, fatigue testing under the combined action of axial (Y-axis) low-cycle tensile stress and horizontal (X-axis) high-frequency load can be completed for engineering part materials and engineering parts, and a load map is shown in figure 1. The system can be used for simulating the high-low cycle composite fatigue test of engineering part materials and engineering parts in a using environment in a time-saving and efficient manner, and the test system is simple, practical and relatively low in cost.

The invention provides a spaceborne high-speed LVDS parallel signal quick test and analysis method. The method comprises the following steps: 1, an LVDS signal standard time domain graph model is built; 2, according to an interface specification of tested signals, a signal cycle and a signal judgment amplitude are calculated; 3, a hexagon test template with a time domain feature is formed; 5, a passive test module with matched signal features is selected; 5, test parameters for an oscilloscope and a differential probe are set; 6, single-channel LVDS signals are tested, and signal effectiveness is analyzed graphically; 7, the above steps are repeated to complete multichannel LVDS parallel signal test and analysis; and 8, test results of multiple channels of signals are fused, and high-speed LVDS parallel interface test and analysis are completed. The method is applicable to a parallel LVDS interface at each transmission rate, and technical problems that the LVDS parallel interface can not be quickly tested and accurately analyzed can be solved.

The invention discloses a test method of an intrinsic error of a zero level indicating value, which is characterized by comprising the following steps of: before starting a machine, connecting a standard test instrument (1) with a corresponding test end hole of a calibrated electrical level type tester (3) by using a test wiring harness (2); then starting the machine, operating the standard test instrument and the calibrated electrical level type tester (3) in an assembling mode according to functions, measuring data of 6 error measuring points including a working frequency lowest end, a highest end and a reference frequency and the like, wherein each frequency point is measured for 3 times and recorded; and then computing with all the acquired 18 primary data to obtain a test result of the intrinsic error of the zero level indicating value. By using single multifunctional standard tester, the invention simplifies test system and test connecting line operation, reduces test procedures, and shortens the whole test time to be about one third of that of the traditional test method.

The invention relates to a method and apparatus for synchronously measuring flow velocity and multi-point water level of complex flow. The apparatus comprises a mobile measuring vehicle, probe fixing devices, ultrasonic water level probes, a CCD camera holder and a CCD camera, wherein guide rails are arranged above two side wallsof a water tank, pulleys matching with the guide rails are welded on the bottom of the mobile measuring vehicle, the ultrasonic water level probes are fixed on the crossbeam of the mobile measuring vehicle through the probe fixing devices, the CCD camera holder is fixed on the center of the mobile measuring vehicle through fasteners, and the CCD camera is fixed on the center of the mobile measuring vehicle through the camera holder. Compared with conventional water level and flow velocity measuring equipment, the apparatus employs four ultrasonic water level probes and one CCD camera to conveniently fast and simultaneously measure the flow velocity of any profile of complex flow in an experimental water tank where a groynes model or a square column cylinder model is arranged, and the corresponding water levels of special flow velocity points on the profile. The apparatus is economical and environmental friendly.

The invention relates to a high-precision aerosol can pressure resistance tester consisting of a control box, an aerosol can body testing head, a valve cap testing head and a testing frame. The aerosol can body testing head and the valve cap testing head are fixedly arranged on the testing frame and are respectively connected with the water outlet and the gas outlet of the control box through an external liquid pipe and an external gas pipe; and a valve gap testing channel and an aerosol can body testing channel are arranged in the control box. The high-precision aerosol can pressure resistance tester has scientific and reasonable design, compact structure, good sealing performance and high precision, is convenient to operate and is highly innovative; the aerosol can body pressure resistance testing and the aerosol can cover pressure resistance testing can be easily switched through a control switch; and the pressure resistance testing process is safe.

The invention provides a test method, system and device and a storage medium. The method can be applied to a test server. The test server side is connected with a message queue telemetry transmission (MQTT) server side, and the MQTT server side is wirelessly connected with a plurality of terminals. The method comprises the following steps: acquiring attribute information of a to-be-tested program and a to-be-tested terminal; calling the MQTT server side, sending the to-be-tested program and the attribute information to the multiple terminals, wherein the multiple terminals are used for judging whether the terminals are the to-be-tested terminals or not according to the attribute information and executing a test task based on the to-be-tested program under the condition that the terminals are determined to be the to-be-tested terminals. Therefore, intermediate PC hardware is not needed, a test system is simplified, and hardware investment is reduced. Through the low-power-consumption IOT protocol, the resource consumption of the test server side can be reduced, asynchronous information transmission is achieved through MQ, the high-concurrency pressure of the test server side is relieved, and the test efficiency is improved.