130results about How to "Realize online test" patented technology

Embodiments of the invention disclose a method, a device, and a system for software tests. The software test method in an embodiment comprises: through a browser page, receiving a test case identifier and a test machine address; issuing a software test request to a server, the software test request including the test case identifier and the test machine address, so the server obtaining a test case based on the test case identifier, sending a test instruction corresponding to the test case to a test machine assigned by the test machine address, and sending a test result returned by the test machine to a client; and receiving the test result and showing the test result returned by the server through the browser page. According to the technical scheme, the test request can be received and the test instruction can be sent through the server, so an objective of online software test is realized, and software test range is expanded.

The invention relates to a fuel cell pile online regional detection system and a fuel cell pile online regional detection method. The detection system comprises piles, PCBs, a data acquisition device and a computer; the PCBs are arranged in the piles; the input end of the data acquisition device is connected with the PCBs; and the output end of the data acquisition device is connected with the computer. The detection method comprises the following steps that: a plurality of PCBs are adopted to replace single-body anode boards, and sealing is performed; hydrogen, air and water are led into the piles, so that the piles can work normally; after the piles can work normally, regional current density signals, temperature signals and single-body voltage signals measured by the PCBs are acquired by the data acquisition system, and data processing results are transmitted to the computer; and the computer converts received data into a two-dimensional distribution graph and displays the graph, and therefore, regional properties of the piles can be detected in an online manner. Compared with the prior art, the fuel cell pile online regional detection system and method of the invention are advantageous in basic avoidance of pile structure modification, a large number of detected performance parameters, intuitive display of measurement results, wide application and the like.

The invention relates to a device and method for determining a molecular diffusion coefficient of a multi-component gas-liquid system in a rock core. The device mainly comprises an inlet pump, a confining pressure pump, a pressure returning pump, an intermediate container, a rock core clamper, an oil-gas two-phase separator, a pressure sensor and a computer, wherein one end of the intermediate container is connected with the inlet pump; thee other end of the intermediate container is connected with the rock core clamper; the rock core clamper is connected with the pressure return pump, the confining pressure pump and the oil-gas two-phase separator; and two ends of the rock core clamper are connected with the pressure sensor and the computer. The method comprises the following steps of: transferring an oil sample and a gas sample into the rock core through the inlet pump; contacting an oil phase with a gas phase to generate diffusion and cause the reduction of the gas phase pressure; monitoring the pressure change of a gas phase zone; after the gas and liquid reach the balance, enabling the drained fluid in the rock core to enter the oil-gas two-phase separator; and analyzing and testing the gas phase composition and the property change. The device and method disclosed by the invention are reliable in principle and simple and convenient in operation; and the molecular diffusion coefficient of each component of the multi-component gas-liquid system in real rock core in the gas phase and oil phase can be determined under different temperature and pressure conditions of an oil reservoir and reasonable base data is provided for quantitatively evaluating the influence on the improvement on the recovery ratio caused by a molecular diffusion effect.

The invention discloses a method and a system for positioning a fault of an optical fiber behind an optical splitter in a passive optical network (PON). The method includes the following steps: when a downward branch optical path below a PON port breaks down, an optical time domain reflector (OTDR) is used for inputting downward test light to the PON port, the downward test light is combined with downward service light and then transmitted, and the OTDR is used for collecting the reflection curve of the downward test light and regarding the reflection curve as a test curve; the reflection curve of the downward branch optical path below the PON port when the downward branch optical path does not break down is regarded as a reference curve, and the test curve is compared with the reference curve so as to identify a reflection peak which exists in the reference curve but disappears at a corresponding position in the test curve and to determine a branch optical path, where an optical network user terminal corresponding to the reflection peak which disappears is located, as a fault light splitting branch below the PON port; whether a novel reflection peak exists in the test curve but does not exist at a corresponding position in the reference curve is identified; and if the novel reflection peak exists, the position of the novel reflection peak is determined as the position, where a broken fiber fault happens, in the fault light splitting branch. The method and the system can be used for quickly and accurately positioning the fault of the optical fiber behind the optical splitter in the PON.

The invention provides a lithium battery AC impedance spectrum online synchronous test method and device. The method is characterized by obtaining a current discrete sampling sequence and a voltage discrete sampling sequence through current excitation signals and voltage response signals of a lithium battery; then, calculating a cross-correlation function of the current discrete sampling sequence and the voltage discrete sampling sequence through a Wiener-Hopf equation, and serving the cross-correlation function as a time domain impulse response function of the lithium battery; then, carrying out Fourier transform on the time domain impulse response function to obtain frequency response of the lithium battery; and adjusting the order of a signal generator to obtain lithium battery AC impedance spectrum in different frequency bands. The method and device can realize synchronous test of a plurality of AC frequency impedance of the lithium battery; frequency response of the lithium battery can be obtained through the impulse response function; the required priori knowledge is less; identification can also be carried out very well under the condition that noise and signal-to-noise ratio are rather small; the correlation function can be obtained through the Wiener-Hopf equation; and the device and method have higher anti-jamming capability.

The invention relates to an online test system and method for alternating-current impedances of fuel cell zones. The test system comprises a printed circuit board, a load circuit, a sine signal generation circuit, a data acquisition module and a data processing module, wherein the printed circuit board instead of an anode plate is mounted on a fuel cell; the load circuit and the sine signal generation circuit are both connected with the printed circuit board; the two ends of the data acquisition module are connected with the load circuit and the sine signal generation circuit respectively; and the data processing module is connected with the data acquisition module. The test method comprises the steps as follows: dividing the fuel cell into a plurality of zones by the printed circuit board; applying sinusoidal perturbations to the zones of the fuel cell by the sine signal generation circuit; acquiring the impedance frequency response signals of the zones in real time by the data acquisition module; and calculating by the data processing module to obtain the alternating-current impedances of the zones. Compared with the prior art, the test system and method have the advantages of capability of testing the alternating-current impedances of the fuel cell zones, wide test frequency range and the like.

The invention relates to a detection method of degree of damage of plasma, which comprises the following steps: providing a batch of chips; providing the upper limit value of the threshold voltage shift of the batch of chips; testing the drain current of the batch of chips to obtain the distribution of the drain current; extracting part of chips from the batch of chips, testing the threshold voltage of the part of chips to obtain the threshold voltage shift and distribution thereof; determining the qualification rate of the part of chips according to the threshold voltage shift and the upper limit value; applying the qualification rate of the part of chips to the batch of chips to establish the drain current standard value of the batch of chips; and detecting the degree of damage of plasma of the batch of chips according to the drain current standard value of the batch of chips. The method can lower the detection cost, enhance the detection efficiency and realize on-line measurement without damaging the chips.

The invention discloses an on-line test structure for polycrystalline silicon Poisson ratio. The on-line test structure comprises an insulating substrate, an asymmetric polycrystalline cross beam, a first polycrystalline lower pole plate and a second polycrystalline lower pole plate, wherein the asymmetric polycrystalline cross beam is deflected in an electrostatic driving mode, so Poisson ratio parameters of a polycrystalline material are obtained according to a geometrical relationship and a material mechanics principle. The test structure rotates under the action of electrostatic force which is generated through excitation voltage, a maximum torsion angle becomes known quantity through structural design, and the Poisson ratio of the polycrystalline material is computed according to a measurement value of the excitation voltage when the test structure reaches the maximum torsion angle and unknown structure geometric parameters and physical parameters. Therefore, requirements for test equipment are low, a test method is simple, and the test process and test parameter values are stable. During synchronization of the polycrystalline silicon preparation process and the manufacturing process of a subsequent micro electro mechanical system (MEMS), special processing requirements are eliminated, and requirements for on-line test are completely met.

The invention discloses an online test device and method of an integrated circuit. The test device comprises a single-chip microcomputer, an address decoding circuit, a data caching circuit, a test driving circuit, a relay device interface circuit, a voltage comparison circuit, a sampling circuit and a threshold circuit; an instant heavy current is input into or output from the input level of a tested device, so that the potential is increased or decreased according to requirements, test output response of the tested device is collected and compared, and fault information and fault position of the tested device are determined. Online test for components in the integrated circuit is realized, test is intelligent and efficient, the measuring accuracy is high, the integrated circuit is avoided from damage in the dismounting process of offline test, problems, as weakening of a current driving capability, which cannot be tested unless in the power-on state of the components of the integrate circuit can be tested, test functions are more comprehensive, and the testing efficiency and performance of the integrated circuit are further improved.

The invention discloses an intelligent feeding detection mechanism of a 3D printer. The intelligent feeding detection mechanism comprises a channel as well as a feeding sensor, a feeding speed sensor and a control system, wherein a printing material passes through the channel; signal receiving ends of the feeding sensor and the feeding speed senor are both connected with the channel; the feeding sensor is used for acquiring whether the printing material passes through the channel; the feeding speed sensor is used for acquiring the feeding speed of the printing material inside the channel; the control system is used for controlling the printer to stop working and to make an alarm when the feeding sensor senses that no material is fed into the channel or the material is not sufficient and the information is transmitted to the control system, and used for controlling the printer to stop working when the feeding speed sensor senses that the feeding speed of the printing material is zero and the information is transmitted to the control system. Through the adoption of the intelligent feeding detection mechanism, whether the material is blocked or insufficient in the printing process or not can be tested, and material replacement can be promoted, so that the printing success rate is ensured.

The invention relates to a leather performance index testing instrument. The leather performance index testing instrument comprises a stepping motor, a speed reducer, a translation block, a lead screw, a shaft coupler, a clamping device, a testing head, a worktable, a displacement sensor and a pressure sensor, wherein the clamping device is fixedly connected on a bottom plate of a rack by the worktable; the testing head is arranged on the clamping device; the pressure sensor is arranged at the upper end of the testing head and is arranged on the translation block by a pressure sensor mounting table; the translation block is in transmission connection with a stepping motor fixed at the upper end of the rack by the lead screw and the shaft coupler; the side of the translation block is fixedly connected with a reading head; the displacement sensor corresponding to the reading head is arranged on the side surface of the rack; and the stepping motor, the pressure sensor, the displacement sensor and the reading head are connected with a control system. The leather performance index testing instrument has a simple structure and is flexible to use; the reliability of a leather performance index test is guaranteed, an on-line test of the leather performance index is realized, and the requirements on a specific test also can be met, the high-efficiency requireemnts on industrial production furtehr can be met and requireemnts of the industrial production can be met.

The invention discloses a centrifugal type micro-Newton insect friction force on-line real-time test system and test method. By adoption of a ball screw and a stepping motor structure, displacement of a high-speed video imaging system can be precisely controlled, so that position information of a tested insect on a test platform can be clearly obtained, that is, the position information is radius information of centrifugal motion; by adoption of a rotating speed sensor matched with the test platform, rotating speed information of the test platform can be accurately and highly precisely obtained, and the test precision and the accuracy of the system are greatly improved; by cooperation with an image analysis processing module, a rotating speed information analysis module, a motor rotating speed control module and a centrifugal force real-time calculation and display module, on-line real-time test and displaying of centrifugal force (friction force and adhesion force) can be realized.

The invention relates to a noncontact wheel multifunctional detection system comprising a control system, a detecting system, a data processing system, a shaft driving device, and a rotating shaft. The noncontact wheel multifunctional detection system is characterized in that the rotating shaft is vertically arranged; a circular table is arranged on the top of the rotating shaft and is connected with a test table; the top of the test table is a plane adapted to an installing surface of a wheel to be tested; a circular groove is disposed on the plane; a vertical column is disposed in the circular groove; a tapered table sleeves the vertical column and slides up and down along the vertical column; the tapered table, the vertical column, and the rotating shaft are arranged coaxially; the diameter of the top of the tapered table is less than that of the central hole of the wheel to be tested; the diameter of the bottom of the tapered table is greater than that of the central hole of the wheel to be tested; a spring is arranged between the tapered table and the bottom surface of the circular groove; and the detecting system includes a laser range finding sensor capable of moving horizontally and vertically. The wheel to be tested is easy and fast to position, install, and uninstall. The test table is convenient to replace in order that wheels in different specifications can be tested.

The invention discloses an open type industrial robot controller architecture based on double CPUs and an FPGA. A main CPU realizes product application of an industrial robot by calling a reconfigurable standard function library, and through data sharing, an auxiliary CPU can realize compensation control of a product, and can also totally take over control of an robot, and is used for algorithm research and function module development, thereby achieving the goal of hierarchical high openness. Since shared data adopt the same address coding, an auxiliary CPU program can generate a machine code directly executed by a main CPU program, thereby realizing rapid transplantation and reconstitution of a function module. A double-port RAM structure designed in the FPGA has two sets of completely independent data lines, address wires and read-write control lines, so that the two CPUs can independently access RAM resources inside the FPGA in a time-sharing manner, and an arbitration logic circuits are all integrated in the double-port RAM during simultaneous access of the double CPUs, thereby simplifying the design of the circuits.

The present invention is thermally driven in-situ test structure of transverse breaking strength of film in microelectronic mechanical system and belongs to the field of in-situ test technology in microelectronic mechanical system. The test structure includes fixing end for beam to be tested, beam to be tested, beam, V-shaped executor heating beam, fixing end for heating beam and conducting film. The beam to be tested has one end fixed to the fixing end for beam to be tested and the other end fixed to one end of the beam, the beam has its two sides connected to V-shaped executor heating beam, the V-shaped executor heating beam has its other end connected to the fixing end for heating beam, the conducting film is on the fixing end for heating beam, the fixing end for heating beam and the fixing end for beam to be tested are fixed onto the upper plane of SiN layer, and below the SiN layer there are SiO2 layer and substrate successively.

The invention relates to a method for determining etching time of a sacrificial layer in real time. The method comprises the following steps of: manufacturing the sacrificial layer and a structural layer of an MEMS (Micro Electro Mechanical System) device on a substrate by virtue of a surface sacrificial layer process; depositing a metal layer on the structural layer; and carrying out wet etching on the sacrificial layer, and determining finish time of etching by observing the dropping condition of metal in the metal layer. By virtue of the method, the etching time of the sacrificial layer can be determined in non-contact and non-destructive manners through naked-eye observation, and the process quality and the rate of finished products of the MEMS can be improved.

The invention discloses a hybrid probe card applied to silicon-based optoelectronic chip wafer-level online testing, and relates to the field of silicon photon and optoelectronic integration. A hybridprobe card comprises a concave groove array substrate, an optical fiber probe array fixed on the concave groove array substrate, an optical fiber connection port array connected with the optical fiber probe array, an optical fiber probe array control arm used for controlling the optical fiber probe array to move, a direct-current probe array, a direct-current connection port flat cable led out ofthe direct-current probe array, a high-frequency probe array, a high-frequency connection port array led out of the high-frequency probe array, and a direct-current high-frequency probe array controlarm used for controlling the direct-current probe array and the high-frequency probe array to move. According to the invention, the test cost and the test risk of silicon-based photoelectronic chip wafer-level online test can be reduced, the test efficiency is improved, and the method is compatible with the layout of most silicon-based photoelectronic chips.

The invention discloses a comprehensive environment experiment study system of an astronavigation optical cable connector. The system comprises a vacuum system, a low-temperature system, a temperaturecontrol system, a tool system and a testing system, a vacuum container of the vacuum system forms an airtight space, a bearing platform for a tested product is mounted on the lower side of, the low-temperature system provides cold-black environment simulating spatial low temperature and free of reflection state for the product, a measuring signal of a temperature measuring sensor is changed underthe temperature control system by changing surface temperature of a connector, a heating device fixing tool in the tool system is placed on a vacuum container mounting platform and used for fixing aheating device to a specified position around the tested product, and an optical fiber connector truly simulates mounting mode and heat transfer path in an in-orbit working condition. The comprehensive environment experiment study system is simple in structure, capable of realizing effective control, convenient for mounting and debugging and easy for design and implementation of various stress experiment matrixes.

The invention discloses a water pump on-line energy consumption test analysis method based on a wireless sensor network. The water pump on-line energy consumption test analysis method can be applied to the industrial field, can accurately and quickly monitor a pump system, provides a pump performance report and an energy consumption analysis report, and provides a strategy for safe and reliable operation of a unit. The method comprises the following steps: S1, acquiring driving motor parameter data by selecting an electric parameter instrument; S2, acquiring a current signal of a motor, and obtaining the rotating speed of the motor through signal conditioning calculation; S3, selecting a sensor, a flowmeter and the like to collect operation parameter data of a water pump; S4, realizing thecommunication between an instrument and an upper computer, and completing data acquisition; and S5, designing the upper computer program, completing the pump performance test and the state monitoring, and managing test data. By the adoption of the wireless technology, the problems that signals of a monitoring system are easy to interfere and wiring is inconvenient are solved, and installation anddisassembly is convenient. A system can be applied to different monitoring objects, so that the universality, transportability and economy of the system are high.

The invention relates to a whole group logic calibration technology of a 10kV protecting device, in particular to a method for on-line whole group logic calibration of the 10kV protecting device. The functions of a replay protecting test instrument for whole group logic calibration are divided into breakdown simulation, data analysis and logic judgment, wherein the breakdown simulation and data analysis are integrated through a calibration module, and the logic judgment is achieved through an upper control center in a long distance. The calibration module is integrated in a control center of relay protecting equipment, action is conducted only by carrying out breakdown simulation and controlling the relay protecting equipment according to a logic instruction, data after the action are judged and analyzed through the upper control center in the long distance, and remote testing can be achieved. Meanwhile, an interface of the upper control center can also be used for judgment for maintenance personnel, an on-line test is achieved perfectly, power outage is of no need, and the safety, the stability and the reliability of operation of a power grid are guaranteed. The whole operation process is an automatic control process, and therefore the method is simple, convenient and high in efficiency.

The present invention belongs to the technical field of teaching systems, and especially relates to a vocal music teaching system. The vocal music teaching system comprises a camera, an output end ofthe camera is electrically connected with an input end of a central processing unit, the input end of the central processing unit is electrically connected with output ends of a microphone and a sign-in management module, an output end of the central processing unit is electrically connected with input ends of a projector and a loudspeaker, the central processing unit is in two-way electrical connection with a wireless communication module, the wireless communication module is in two-way electrical connection with a student computer and a teacher computer, and an output end of the student computer is electrically connected with an input end of a vocal music test module. Through combination of an Internet technology, the vocal music teaching system can achieve self scoring, can greatly improve the teaching efficiency and has a high practical value.

The invention relates to a knife-handle-type temperature monitoring device. The device mainly comprises a temperature induction module, a wireless power supply module, a wireless communication moduleand a signal acquisition system. The device is mainly characterized in that a thermocouple in the temperature induction module is embedded into a cutter with a hole or a stirring tool, and a signal amplification and conversion unit processes and converts into a digital quantity signal; the wireless power supply module adopts an electromagnetic induction coupling mode to provide electric energy foreach electronic component in the device; and the wireless communication module adopts a radio frequency technology to send the digital quantity signal corresponding to a temperature to the signal acquisition system of an upper computer. In the invention, real-time temperature induction and acquisition, wireless power supply and signal transmission are integrated into one body, on-line temperaturetesting in production processes of mechanical processing, friction-stir welding and the like is realized, and the device possesses advantages that the structure is simple; usage is convenient; and cost is low and so on.

The invention discloses a device and method for testing plume smoke particles of a solid rocket engine. The device comprises a laser modulation part, a laser receiving part, a laser diffraction detection part, a laser attenuation detection part and a particle test processing part. The laser modulation part is located between an engine plume and a laser light source part and used for modulating thespot size, the beam expanding angle, the effective irradiating measurement area and other laser space parameters of incident laser. The laser receiving part is located on the other side of the engineplume, and the laser receiving part is used for gathering and receiving transmission lasers with different wavelengths after passing through a plume to be measured and splitting the transmission lasers into a first light beam and a second light beam through a semi-transparent and semi-reflective mirror. The laser diffraction detection part receives the first light beam and is used for detecting the diffraction light energy distribution of the first light beam. The laser attenuation detection part receives the second light beam, irradiates a grating and then splits the second light beam into aplurality of split lasers according to the wavelength. The particle test processing part is used for controlling the laser light source part, wherein particle test processing part is respectively incommunication connection with the laser diffraction detection part and the laser attenuation detection part, and is used for processing and displaying plume smoke particle parameters of the solid rocket engine.

The invention discloses a method for online updating the OCV curve of a battery, comprising: designing a battery internal resistance model and setting a SOC change window with a certain range, whereinwhen the SOC change window is within the range, the internal resistance and the OCV are fixed values; measuring a driving discharge curve and obtaining SOC discharging current and voltage road spectrums; performing least square method analysis on different current and corresponding voltage data in the SOC change window in a working condition to obtain a group of differently marked OCV values andinternal resistance values in the SOC change window, and obtaining the OCV curve. The method can online updates the OCV curve of the battery, can obtain the OCV curve of the aging cell of a new energyvehicle, further strengthens the detection of the battery capacity and the battery internal resistance attenuation of the new energy vehicle, and has a positive effect on promoting the battery systemdetection of new energy vehicle.

The invention relates to a coal mine dynamic disaster multi-parameter coupling and determining device and relates to the coal mine dynamic disaster determining device. By adopting the coal mine dynamic disaster multi-parameter coupling and determining device, a real coal mine underground dynamic disaster occurrence environment can be simulated, and the surrounding rock stress and gas pressure when the dynamic disaster happens can be accurately measured. Two perpendicular synchronous loading hydraulic cylinders are respectively fixedly connected with the upper surface and the lower surface of a high-pressure-resisting rigid closed shell, and two perpendicular synchronous loading hydraulic cylinder rods are fixedly connected with a pressure block I which is arranged in the high-pressure-resisting rigid closed shell; two horizontal synchronous loading hydraulic cylinder bodies are fixedly connected with the left outer side surface and the right outer side surface of the high-pressure-resisting rigid closed shell, and two horizontal synchronous loading hydraulic cylinder rods are fixedly connected with a pressure block II which is arranged in the high-pressure-resisting rigid closed shell; rodless cavities of the two perpendicular synchronous loading hydraulic cylinder bodies are respectively communicated with cylinder bodies of two small plunger hydraulic cylinders II through two pipelines I, and rodless cavities of the two horizontal synchronous loading hydraulic cylinder bodies are respectively communicated with cylinder bodies of two small plunger hydraulic cylinders II through two pipelines II. The coal mine dynamic disaster multi-parameter coupling and determining device is used for determining dynamic disaster parameters of a coal mine.

The invention discloses a voltage controlled oscillator, which comprises a bipolar voltage controlled oscillator unit and an output buffer unit, wherein the bipolar voltage controlled oscillator unit has a difference structure and comprises an LC resonant circuit module and a negative resistance circuit module; the LC resonant circuit module is used for generating first oscillation signals of the needed oscillation frequency; the negative resistance circuit module comprises a pair of first bipolar transistors; the output buffer unit comprises two second bipolar transistors; bases of the two second bipolar transistors are respectively connected with a first output port of the LC resonant circuit module; and emitters of the two second bipolar transistors serve as two second output ports of the voltage controlled oscillator and output differential pairs of second oscillation signals. Power of the oscillation signals can be improved, phase noise of the circuit can be reduced in the condition of not changing the oscillation frequency of the oscillation signals, and online test can be carried out on radio frequency parameters of the oscillation signals on a radio frequency probe table.

The invention relates to a handheld power equipment relay online tester and a test method, the handheld power equipment relay online tester comprises a relay body, the relay body comprises a main control unit, and the main control unit is respectively connected with a display unit, a data downloading unit and a battery electric quantity detection unit; and the main control unit is respectively connected with the acquisition unit, the power supply unit, the key unit, the buzzer and other peripherals through the isolation unit. According to the invention, the ARM is used as a test core processor, a traditional measurement circuit built by a relay and a contactor is abandoned, the innovative test method can dynamically monitor and forecast the fault state of the relay in a working state, andonline display or offline analysis of a test curve can be realized. A lithium battery power supply handheld structure is adopted for device power supply, online analysis of fault conditions and reasons of the relay is achieved, and timely judgment of relay faults is facilitated.

Provided is an acceleration test data automatic acquisition and analysis assessment system of an analog integrated circuit. The system is formed by a constant temperature drying box, an analog integrated test circuit, a system controlling machine, a multichannel selector switch, and a certain-type operational amplifier, the analog integrated test circuit is connected with the system controlling machine through an I2C bus and used for signal transmission between the system controlling machine and the analog integrated test circuit, the multichannel selector switch is connected with the analog integrated test circuit through a 14PIN pin to form a test circuit for test devices, and the test devices are arranged on the multichannel selector switch and are put into a high and low temperature oven for acceleration tests. According to the system, the number of the operational amplifiers can be flexibly increased or reduced, and the adoption of the multichannel selector switch and the constant temperature drying box is flexibly selected; parameter tests of the operational amplifiers can be conducted in the normal temperature or acceleration test condition; the operation is convenient, the running is stable, the devices can be effectively protected, and the reliability and the security of the system are improved; and the system can satisfy integrated operation of various types.

The invention relates to a temperature-variable abrasion instrument capable of studying the rolling and sliding friction behaviors of rubber simultaneously. The instrument comprises a grinding wheel and an abrasion wheel contacting the grinding wheel. The circumferential direction of the abrasion wheel contacts the end face of the grinding wheel. The rotation of the grinding wheel drives the rotation of the abrasion wheel. The abrasion wheel and the grinding wheel generate rolling friction and sliding friction at the same time. According to the invention, the abrasion instrument can simultaneously measure the rolling friction and sliding friction behaviors of rubber, so as to acquire the abrasion amount under two friction situations; with the gradual increase of the amount of depressionof a cylinder, the friction behavior of the rubber ring of the outer ring of the abrasion wheel on the grinding wheel is changed from sliding-based friction to rolling-based friction; and the application range of the instrument is greatly expanded.

The invention discloses an on-line cleaning rate test method and device for a shell-and-tube heat exchanger. The on-line cleaning rate test method comprises the following steps: injecting a reagent into a heat exchange tube; after soaking the reagent in the heat exchange tube for a preset period of time, extracting the reacted reagent in the heat exchange tube; detecting calcium and magnesium ions in the reacted reagent in the extraction process. The on-line cleaning rate test device comprises a positioning device and a reagent tank, wherein a dirt cleaning injection nozzle is arranged on the positioning device; the reagent tank is connected with a corrosion box, in which corrosion samples are arranged, through a liquid charging pump; the corrosion box is connected with a liquid charging valve; the liquid charging valve is connected with the dirt cleaning injection nozzle. The on-line cleaning rate test device further comprises a liquid storage tank connected with a calcium and magnesium ion tester, the calcium and magnesium ion tester is connected with a pH tester I, the pH tester I is connected with a filter, the filter is connected with the corrosion box through a liquid return valve, and the reagent tank is equipped with a pH tester II. The on-line cleaning rate test method and device provide reliable guarantee for a power plant to determine the optimal cleaning period and cleaning mode and to achieve the optimal cleaning effect with the minimal cost.