54 results about "Performance measuring device" patented technology

The application discloses a subsonic wind tunnel ducted fan aerodynamic performance measuring device and a measuring method, and belongs to the technical field of special wind tunnel test testing. The ducted fan nacelle comprises an inner side and an outer side, the inner side is provided with an inlet total static pressure rake and a fan rear end total temperature total pressure rake, the inlet total static pressure rake is arranged in front of a ducted fan rotor and a hub, a stator hub is provided with a stator rear end total temperature total pressure rake, the stator rear end total temperature total pressure rake is the same in structure with the fan rear end total temperature total pressure rake, and the stator rear end total temperature total pressure rake is arranged at a rear end of a stator blade. The application discloses a subsonic wind tunnel ducted fan aerodynamic performance measuring device and a measuring method, and belongs to the technical field of special wind tunnel test testing.

The utility model discloses a vertical pump cavitation testing device and system, the device comprises an upper component, a partition plate, a to-be-tested impeller assembly with a lower shaft, and a lower component, the upper component comprises a driving assembly and an upper shaft driven by the driving assembly to rotate; the partition plate is arranged between the upper component and the lower component, a liquid inlet area is formed on the lower side of the partition plate, and a liquid outlet area is formed on the upper side of the partition plate; the lower shaft of the impeller assembly to be tested is connected with the upper shaft of the upper component through a coupling; a communication hole is formed in the middle of the partition plate, the lower shaft is arranged in the communication hole in a penetrating mode, and an impeller of the impeller assembly to be tested can drive liquid to enter the liquid outlet area from the liquid inlet area through the communication hole. The cavitation performance measuring device has the advantages of being high in cavitation performance measuring accuracy, simplifying the test process, saving the test time and saving the test cost.

The application relates to a bearing lubrication performance measuring device under outer ring driving, and belongs to the technical field of lubrication experiments. The device comprises an operation platform, a driving device, a loading device, a testing device and a torque acquisition system. The driving device is connected with the testing device through a shaft coupling, drives the testing sleeve to rotate to simulate the driving working condition of the bearing outer ring; the loading device applies and measures the load on the testing bearing through a thrust bearing, a pressure sensor and a butterfly spring; the torque acquisition system acquires torque data in the testing process in real time. The testing main shaft and the loading shaft system are internally provided with oil channels, lubricant can be supplemented in time, and the butterfly spring in the supporting sleeve plays the roles of buffering and keeping the load stable. The device can truly simulate the high-speed rotating working condition of the bearing outer ring, synchronously measure torque, load and rotating speed parameters, the platform level can be adjusted through adjusting screws, the bearing pre-tightening force is adjustable, the testing bearing is convenient to replace, and the device is suitable for the testing and evaluation of the lubrication performance of space bearings.

The invention provides a nuclear energy engineering design performance measuring device and method, and relates to the technical field of nuclear energy engineering management. The nuclear energy engineering design performance measurement device comprises a data acquisition module, an intelligent algorithm processing module, a performance calculation module and a visual decision support module. The data acquisition module is used for acquiring calculation data; the intelligent algorithm processing module is used for respectively obtaining design result complexity, quality risk data, collaborative efficiency data and weight parameters according to the calculation data; the performance calculation module is used for calculating resource efficiency performance, design result completion performance, quality risk performance and collaborative efficiency performance according to the calculation data, the design result complexity, the quality risk data and the collaborative efficiency data; according to the weight parameters, carrying out weighted calculation on the design result completion performance, the resource efficiency performance, the quality risk performance and the collaborative efficiency performance to obtain design comprehensive performance; and the visual decision support module is used for visually displaying the calculation result.

The utility model discloses a soft material dynamic adhesion performance measuring device, which relates to the field of pressure-sensitive adhesive adhesion performance testing and comprises an experimental testing mechanism, a synchronous observation mechanism and a data processing mechanism. The synchronous observation mechanism is positioned outside the experimental testing mechanism and is used for synchronously observing the experimental testing mechanism; the data processing mechanism is connected with the synchronous observation mechanism through a data connecting line, and the data processing mechanism is used for integrating test data of the synchronous observation mechanism. According to the device for measuring the dynamic adhesion performance of the soft material, the dynamic adhesion performance of the material is calculated by observing the movement speed of the volute spiral spring, and a new technical scheme is provided for characterization of the dynamic adhesion performance of the material.

The application discloses a kind of damping material damping performance measuring device and measuring method, belong to material performance test field.The box is provided with test cavity in box;Test cavity is provided with the upper die plate and lower die plate arranged in upper and lower, the upper die plate and lower die plate are used to clamp the damping material to be measured between upper die plate and lower die plate;Test cavity is provided with gravity ball above upper die plate, gravity ball is connected with the lifting release mechanism that gravity ball is lifted upwards and gravity ball is released downwards;Upper die plate and lower die plate are respectively provided with vibration sensor for collecting the vibration data of upper die plate and lower die plate, vibration sensor is connected with microprocessor.The application has the advantages of simple structure, small volume, convenient to use, high efficiency, can quickly and effectively evaluate the damping performance of damping material, obtain the characteristics of damping material, compare the difference of damping effect of different damping materials.

The invention provides a nuclear energy engineering debugging performance measuring device and method, and relates to the technical field of nuclear energy engineering management. The nuclear energy engineering debugging performance measuring device comprises a data acquisition layer, an analysis layer and a display early warning layer, wherein the data acquisition layer is configured to obtain calculation data for calculating nuclear energy engineering debugging performance; the analysis layer comprises a weight optimization module, a performance calculation module and an anomaly diagnosis module, wherein the weight optimization module is configured to obtain a corresponding weight according to the real-time data; the performance calculation module is configured to respectively calculate debugging preparation performance, debugging implementation performance and debugging management performance according to the calculation data, and calculate nuclear energy project debugging performance according to the debugging preparation performance, the debugging implementation performance, the debugging management performance and corresponding weights; the abnormity diagnosis module is configured to analyze the calculation result to judge whether an early warning threshold value is triggered or not; and the display early warning layer is configured to display the calculation result on a user interface, and send an early warning signal in response to the trigger early warning threshold.

The utility model discloses a multifunctional SPECT (Single Photon Emission Computed Tomography) performance measuring device, which relates to the medical equipment detection technology and comprises a spring buckle, a connecting piece, a telescopic rod and a circular truncated cone container, a spring buckle is arranged on the base, a clamping foot clamped on a medical bed is arranged in the spring buckle, the connecting piece is rotationally installed on the spring buckle, the telescopic rod is detachably installed in the connecting piece, the circular truncated cone container is detachably installed above the telescopic rod, and a containing cavity used for containing a radioactive source is formed in the circular truncated cone container. According to the device, multi-dimensional adjustment of the height and the direction of the radioactive source in the circular truncated cone container is achieved, the device is easy and convenient to adjust and operate, the loading and unloading time of the device is shortened, the radiation dose of operators is greatly reduced, and the device can measure multiple performance indexes such as inherent spatial resolution, inherent spatial linearity and fault spatial resolution of SPECT equipment.

The utility model belongs to the field of investment casting ceramic slurry, and relates to an automatic slurry performance measuring device. Comprising an overturning mechanism, a rotating mechanism, a fixing device, a slurry performance detection sensor and a sensor cleaning box, the overturning mechanism comprises an upper connecting piece, a lower connecting piece and a first rotating air cylinder, one side of the upper connecting piece is connected with one end of the first rotating air cylinder, and one side of the lower connecting piece is connected with the other end of the first rotating air cylinder and used for achieving overturning movement; the rotating mechanism comprises an F-shaped side connecting piece and a second rotating air cylinder, a lower plate of the F-shaped side connecting piece is connected with one end of the second rotating air cylinder, and the other end of the second rotating air cylinder penetrates through an upper plate of the F-shaped side connecting piece to be connected with the lower connecting piece and is used for achieving rotating motion; the upper end of the fixing device is connected with the lower end of the F-shaped side connecting piece, and the lower end of the fixing device is used for fixing a slurry cylinder; the slurry performance detection sensor is fixed at the end part of the upper connecting piece; the sensor cleaning box is used for containing a cleaning solution.

The invention discloses a mobile beef cattle breeding performance measuring device. The device comprises a base, a bottom plate, a top plate and a moving frame, the base is provided with walking wheels and a sliding through groove, a main threaded rod and a moving block are arranged in the base, and the moving block is connected with the bottom plate through a rotating rod and can drive the moving frame to move synchronously; the main threaded rod drives the top plate to press downwards through a belt wheel and a gear and rack transmission mechanism, and synchronous limiting of the beef cattle in the up-down and left-right directions is achieved under control of a single motor. The device is further provided with an auxiliary threaded rod and a second fixing rack, the distance between the movable frames and the height of the top plate can be finely adjusted, and beef cattle of different body types can be adapted. The arrangement of the head limiting assembly and the inflatable air bag further improves the limiting stability and animal comfort. The device has the advantages of being convenient to move, easy to operate and high in adaptability, and is suitable for efficient, safe and low-stress fixation of beef cattle in breeding determination.

To perform a tire performance evaluation more easily by using a new method different from a conventional real vehicle driving test and a drum-type bench test.SOLUTION: A tire performance measuring method for measuring the performance of a tire for a test vehicle includes: a step of installing in-wheel motors (12-1 to 12-4) on the inside of tire wheels of tires (11-1 to 11-4); a driving force generation step of generating driving forces (F1 to F4) equally in the in-wheel motors (12-1 to 12-4) so that the test vehicle does not move forward or rearward and stays at the place; a step of gradually and equally increasing the driving forces, and when any of the tires slips, determining the driving force at the start of slip of the tire; and a calculation step of calculating a coefficient of friction in the direction of travel or the direction of revolution from the driving force at the start of slip.SELECTED DRAWING: Figure 2

The utility model discloses a quick sealing performance measuring device for a normal pressure storage tank, and particularly relates to the technical field of special equipment sealing performance detection, the quick sealing performance measuring device comprises a tank opening, a butt joint table and a cover plate, the cover plate is fixed at the top end of the butt joint table, and a sealing performance detection assembly is arranged at the top end of the cover plate. By arranging the pressurizing pipe and the pressure gauge, when the cover plate is used, the butt joint table on the bottom side of the cover plate can be inserted into the inner side of the tank opening of the normal-pressure storage tank to cover the outer side of the tank opening for use, and at the moment, pressure gas can be conveyed into the tank opening through the external pipe box to change the pressure state in the storage tank; the pressure state in the storage tank can be detected and fed back through the pressure gauge, the state can be maintained and observed for a period of time along with the change of a pointer of the pressure gauge, an operator can be assisted in judging the sealing performance of the storage tank through the state of the pointer of the pressure gauge, and the detection efficiency of the rapid sealing performance measuring device is enhanced.

The invention discloses a radioactive substance transportation container cover plate shielding performance measuring device, which comprises a cover plate mounting frame used for supporting a container cover plate, a moving frame is movably arranged below the cover plate mounting frame, a collimator is arranged on the moving frame, an access channel is formed in the collimator and is used for entering and taking out a radioactive source, and the radioactive substance transportation container cover plate is arranged in the access channel. And a detector is arranged above the cover plate mounting frame. According to the invention, the cover plate can be placed on the cover plate mounting rack, the collimator is driven by the moving rack to move to the outside of the cover plate mounting rack to mount the radioactive source, the moving rack can drive the collimator to move to the lower part of the cover plate mounting rack after mounting is completed, and the cover plate can shield released radiation. The shielding performance of the cover plate is detected through the radiation value detected by the detector above the cover plate, the radioactive source can be conveniently placed in, the cover plate can be conveniently installed, the shielding performance of the cover plate can be conveniently tested, radiation irradiation borne by workers can be reduced, and the testing safety can be improved.

A kind of hydrogen energy LH2 / LNG ultralow temperature pull-off valve performance measuring device, installation groove is equipped in installation table upper end, left end chassis and right end chassis are distributed left and right with installation groove connection, high-pressure barrel assembly is equipped on left end chassis, high-pressure barrel cover assembly, hydraulic cylinder assembly is equipped on right end chassis and is connected with flange barrel assembly by tension rope, the left end of measured valve is connected with high-pressure barrel assembly, the right end of measured valve is connected with flange barrel assembly, high-pressure barrel cover assembly, flange barrel assembly and hydraulic cylinder assembly are connected with data control system;Form low-temperature multi-phase pull-off performance test loop, low-temperature sealing test loop and low-temperature high-pressure impact test loop.The main advantages are: the installation table, chassis, tension system integration prototype design, realize device structure simplification, manufacturing cost reduction, operation and safety and measurement accuracy are improved, meet the low-temperature sealing, high-pressure impact and axial, 45 ° and 90 ° multi-phase pull-off performance core index test requirements of measured piece.

The invention discloses a device and a method for measuring aerodynamic performance of a ducted fan of a subsonic wind tunnel, and belongs to the technical field of special wind tunnel test. The invention solves the problem that the prior art does not relate to a system for measuring the aerodynamic performance of a scaled ducted fan model in a large subsonic wind tunnel and cannot meet the measurement requirement in the design of a ducted fan engine. The ducted fan nacelle comprises a ducted fan nacelle inner side and a ducted fan nacelle outer side, an inlet total static pressure rake and a fan rear end total temperature total pressure rake are installed on the ducted fan nacelle inner side, and the inlet total static pressure rake is arranged at the front ends of a ducted fan rotor and a propeller hub; a stator rear-end total temperature and total pressure rake is installed on the stator hub, the stator rear-end total temperature and total pressure rake and the fan rear-end total temperature and total pressure rake are the same in structure, and the stator rear-end total temperature and total pressure rake is arranged at the rear ends of the stator blades. According to the device and method for measuring the aerodynamic performance of the ducted fan of the subsonic wind tunnel, quantitative evaluation of the fan efficiency, pressurization and flow characteristics of a ducted fan scaling model is achieved.

The application provides a mobile beef cattle breeding performance measuring device. The mobile beef cattle breeding performance measuring device comprises a bottom plate, a first support frame is fixedly installed on the top of the bottom plate, one side of the first support frame is provided with an opening, a second support frame is arranged on the first support frame, a first lifting mechanism is arranged on the top of the second support frame, a sling is arranged in the first support frame, stretch mechanisms are arranged on the two sides of the sling, the stretch mechanisms are used for stretching and contracting the width of the sling, the stretch mechanisms are connected with the first lifting mechanism, a conveying belt is fixedly installed on the top of the bottom plate, and the conveying belt is located in the first support frame. The mobile beef cattle breeding performance measuring device has the advantages that beef cattle can be conveniently put in, the beef cattle can be hung up to reduce the probability of stress reaction of the beef cattle and reduce the damage of stress reaction of the beef cattle.

The utility model relates to the technical field of self-compacting concrete working performance measurement, and discloses a continuous self-compacting concrete working performance measuring device which comprises a measuring table, a circular plate fixedly mounted on the surface of the measuring table, and a fixing rod fixedly mounted on the surface of the measuring table. According to the continuous self-compacting concrete working performance measuring device, through the arrangement of a control assembly, when a supporting block is propped against, a vertical rod fixed on the surface of the supporting block drives a moving block to slide on the surface of a supporting plate under the support of a second spring; a sliding rod fixed to the surface of a moving block slides in an arc-shaped groove formed in the surface of a round rod, the round rod is stressed to drive a buffer plate to swing, and due to the fact that the moving block transversely reciprocates, the buffer plate can continuously swing at the bottom of a discharging pipe to buffer impact force of discharged concrete; and the situation that the circular plate is broken and damaged due to too large impact force is avoided.

The invention discloses an air floatation moving bearing surface type supercritical carbon dioxide static pressure thrust bearing pressure distribution measuring device, and belongs to the field of gas lubrication and performance detection. The device mainly comprises a vibration isolation plate, a bearing platform with a pressure measuring hole, a linear air floating guide rail, an arc-shaped air floating guide rail, a double-layer chamber, a labyrinth seal, a static pressure gas bearing, a sensor and a collector. According to the device, the two-dimensional, non-contact and friction-free movement of the bearing platform is realized by combining the air floating guide rail and the labyrinth seal, the pressure measuring hole is driven to be aligned with any position to be measured, and the continuous and complete measurement of the pressure of the bearing surface is completed. An inner-layer cavity of the device is used for containing supercritical carbon dioxide and a hydrostatic bearing; compressed air is introduced into the outer-layer cavity to form a positive-pressure air barrier, so that a medium in the inner cavity is prevented from leaking to the atmospheric environment. The method solves the problem that a traditional method is limited in measuring points and cannot adapt to the supercritical carbon dioxide medium environment, and can also be used for pressure distribution testing of other high-pressure and special medium hydrostatic bearings.

The invention provides a device and a method for measuring the sound insulation performance of a translational compressible sealing element, and belongs to the technical field of aircraft noise control. The device comprises an acoustic measurement box with an opening; the number of the horizontal sliding cover plates is two, and the two horizontal sliding cover plates are in butt joint with each other, so that a mounting surface of the sealing element is formed at the butt joint surface; the cover plate sliding restraining device is of an asymmetric U-shaped structure, the short edge of the U-shaped structure is fixed to the edge of the outer side of the opening of the acoustic measurement box, and a gap is formed between the long edge of the U-shaped structure and the edge of the opening of the acoustic measurement box; the horizontal sliding cover plate is arranged in a gap between the cover plate sliding restraint device and the acoustic measurement box; and the compression screw is installed on the cover plate sliding restraining device and used for locking the horizontal sliding cover plate, and the horizontal sliding cover plate is locked through the compression screw, so that the sealing piece is in a stable compression state.

The invention relates to the field of chip performance detection, and discloses a detector chip performance measuring device and method, and the device comprises a test pedestal with a groove which is used for accommodating a to-be-tested detector chip and a cooling medium; the sample table is positioned in the groove and is used for placing a detector chip; the temperature measuring meter is used for measuring the temperature of the detector chip; and the parameter analyzer is used for being connected with the detector chip and collecting parameters of the detector chip when the temperature of the detector chip reaches the working temperature after the cooling medium is moved away. According to the invention, the cooling medium is used for cooling firstly, and after the cooling medium is moved away, the parameters of the detector chip are measured in a slow temperature rise mode, the detector chip does not need to be packaged in a Dewar structure for testing, tedious technological processes such as Dewar packaging exhaust and coupling of a refrigerating machine are avoided, the testing process is simple, and the testing efficiency is improved. A large number of personnel are not needed to participate in the test, the test time is shortened, and the test efficiency is greatly improved.

This invention relates to the field of film shrinkage measurement technology, encompassing clamping plates, a fixture for preventing sample strip detachment, and a device for measuring the heat shrinkage properties of films. The fixture includes fastening bolts and two symmetrically arranged clamping plate bodies. The fastening bolts pass through and connect the two clamping plate bodies, clamping the sample strip between them. A first arc-shaped groove is formed on one side of each clamping plate body, and a second groove extending perpendicular to the length of the sample strip is formed on the opposite side. A rubber pad is placed within the second groove, and the rubber pad has several protrusions arranged in an array to compress the end of the sample strip. This clamping plate structure increases the friction between the clamping plate and the sample strip, making it less likely for the sample strip to detach. Simultaneously, the clamping force is evenly distributed, avoiding localized damage to the sample strip and reducing the risk of detachment. The control system of the film heat shrinkage performance measuring device combines the detected pressure data to control the device's operating status in real time, reducing wasted time and improving testing reliability.

The invention relates to the technical field of uncertainty analysis, in particular to a combined cycle power station performance index uncertainty analysis method and system, and the method comprises the steps: obtaining equipment configuration information, equipment operation state parameters and uncertainty source parameter measured values of power generation equipment; determining a topological structure type of the generator set, selecting a thermodynamic model and an uncertainty synthesis formula of the generator set, and extracting an error range and parameter precision of a performance measurement device in the power generation equipment; inputting measured values of equipment configuration information, equipment operation state parameters and uncertainty source parameters into the thermodynamic model, outputting performance indexes of the generator set, and calculating an intermediate thermodynamic state quantity; multi-dimensional uncertainty is calculated; synthesizing the multi-dimensional uncertainty into the combined uncertainty of the generator set through an uncertainty synthesis formula; calculating extended uncertainty based on the joint uncertainty; and generating an uncertainty analysis report. According to the invention, precise quantification and standardized output of unit-level performance index uncertainty can be realized.

The application provides a magnetic performance measuring device and a magnetic performance measuring method, the magnetic performance measuring device comprises a measurement control module, an integral amplification module, a feedback module and a test square; the feedback module is used for obtaining a secondary voltage signal of the test square and generating a feedback voltage signal according to the secondary voltage signal; the measurement control module is used for generating a sinusoidal voltage signal; the integral amplification module is used for comparing waveforms of the feedback voltage signal and the sinusoidal voltage signal; the measurement control module is further used for obtaining a primary current signal of the test square and the secondary voltage signal when the comparison result is that the waveforms of the feedback voltage signal and the sinusoidal voltage signal are consistent, and obtaining a magnetic performance measurement result according to the primary current signal and the secondary voltage signal. The application corrects the secondary voltage signal of the test square through the feedback module and the integral amplification module, so that a more accurate magnetic performance measurement result is obtained.

The invention relates to a device and a method for measuring tightening performance of a fastener for a flexible structural member. A bearing unit of the measuring device can move along an X axis or a Y axis in the horizontal direction, and can bear a lower structural member and a first fastener; the position adjusting unit can be provided with the upper structural part and can further drive the upper structural part to rotate above the lower structural part or move up and down along the Z axis. The tightening unit can rotate and can also screw the second fastening piece so that the second fastening piece and the first fastening piece can be in threaded connection, one of the first fastening piece and the second fastening piece is a screw rod capable of penetrating through the upper structural piece and the lower structural piece, and the other one of the first fastening piece and the second fastening piece is a nut; the measuring unit comprises an axial force measuring piece and a visual measuring piece, and the axial force measuring piece can obtain stress information of the second fastener in the screwing process and stress information of the second fastener after screwing. The vision measuring part is used for obtaining position information of the upper structural part and the lower structural part before the second fastener is screwed and deformation information of the upper structural part and the lower structural part when the second fastener is screwed.

The application provides a material radiation performance measuring device based on an energy method, which comprises a vacuum cover and a refrigerator, a copper screen is arranged in the vacuum cover, and a measuring assembly is arranged in the copper screen; the refrigerator is connected with the vacuum cover, and a refrigeration end of the refrigerator is connected with the measuring assembly; the measuring assembly comprises a black body, at least one sample table, a reflection mechanism and a measuring mechanism, the reflection mechanism is adapted to turn to the black body or the sample table, receive the radiation energy emitted by the black body or the sample table and transmit the radiation energy to the measuring mechanism. Through the above manner, the measuring assembly is arranged in the vacuum cover, the measuring assembly comprises at least one sample table and a black body, the reflection mechanism can turn to the black body or the sample table to transmit the radiation energy emitted by the black body and the sample table to the measuring mechanism, so that the measurement of the radiation energy of the material sample placed on the black body and the sample table is realized, then the radiation energy of the black body and the sample placed on the sample table is compared, and the measurement of the surface radiation performance of the sample at low temperature is realized.

The invention relates to the technical field related to beef cattle breeding, in particular to a beef cattle breeding performance measuring device which comprises a detection table, a weighing scale and a weighing plate are arranged above the detection table, T-shaped grooves opposite front and back are formed in one end of the detection table, the width of the inner wall of the bottom of each T-shaped groove is larger than that of an opening, and the end, away from the center of the detection table, of each T-shaped groove extends out of the detection table. A limiting plate located on the detection table is arranged in the T-shaped groove in a front-back sliding mode. A movable plate is arranged above one limiting plate in a left-right sliding mode, an infrared detection rod is arranged on the lower side of one end, located in the two limiting plates, of the movable plate, and a horizontal second infrared detection rod facing the center of the detection table is arranged on the upper side of one end, located in the two limiting plates, of the movable plate; a baffle located on the detection table is arranged between the limiting plates, a connecting ring is arranged on the side, away from the weighing plate, of the baffle, the connecting ring is sleeved with a traction rope extending to one side of the detection table from the position above the baffle, and the other end of the traction rope is connected with a trough. The invention has the advantages of integrated detection, simple operation and more accurate detection result.

This performance measurement device (100) accesses performance counters (PMC 31) of a processor and acquires a performance index of the processor. The performance measurement device (100) comprises: a counter batch setting unit 110 that continuously sets, with respect to a plurality of performance counters (PMC 31) possessed by a logical core, values counted by each of the same; and a counter batch access unit (120) that continuously acquires count values from the plurality of performance counters (PMC 31) set by the counter batch setting unit (110). If the type of count value to be acquired is different from the current set value, the counter batch access unit (120) requests setting from the counter batch setting unit (110).

The invention discloses a clay stabilizer performance measuring device, a measuring method and a measuring system thereof, and the measuring method comprises the following steps: simulating temperature and pressure conditions in a stratum state to reproduce a rock core fracturing and breaking state; in the environment, the clay stabilizer solution is driven by the constant flow pump to pass through the flow guide chamber, the change of the flow conductivity and the turbidity value is calculated according to monitored data, and the clay expansion and migration inhibiting capacity of the stabilizer is evaluated. The method effectively solves the problem that the clay stabilizer cannot directly evaluate the performance excellence of expansion prevention and migration of the original rock core, and meanwhile, the simulation condition is closer to the real stratum state, so that the evaluation result is more authentic and accurate. Therefore, the effects of different types of acid fracturing clay stabilizers are accurately evaluated, and a powerful judgment basis is provided for compatibility of different types of reservoirs with appropriate clay stabilizers.

The invention discloses a roadbed soil consolidation performance measuring device and a roadbed soil consolidation performance measuring method in the technical field of soil stress measurement, and aims to solve the problem that the influence of different test parameters on the soil consolidation performance is inconvenient to explore in the prior art. The device comprises a test box used for containing a test soil sample, a drainage plate is inserted into the soil sample in the test box, a plurality of openings are formed in the bottom of the test box, and a plug block is arranged at each opening and used for sealing the opening. A plurality of stress discs located at different height layers of the soil sample are arranged in the test box and above each opening, and each stress disc comprises a first stress disc and a second stress disc which are arranged in a staggered manner; the device is used for providing a more stable environment to measure the consolidation degree in a soil period, can directly and conveniently measure the bearing stress of soil of different height layers, and is beneficial to exploring the optimal application parameters of soil consolidation and popularizing the optimal application parameters to construction operation.

The present invention discloses a dual-pulse generator, a device, and a method for measuring the superposition performance of partial discharges. The dual-pulse generator includes: a pulse synchronization unit for synchronizing a dual-pulse signal with an industrial frequency signal; a dual-pulse time interval adjustment unit for outputting a single pulse signal with a continuously adjustable pulse width from 0.2μs to 100μs; a dual-pulse generation unit for outputting a single pulse signal triggered by the rising edge of an input signal and a single pulse signal triggered by the falling edge of an input signal; a dual-pulse merging unit for outputting the superimposed dual-pulse signal; and a dual-pulse output unit for inputting, processing, and outputting the superimposed dual-pulse signal output by the dual-pulse merging unit. The dual-pulse generator provided by the present invention achieves continuous adjustment of the dual-pulse interval time between three orders of magnitude and continuous adjustment of the output dual-pulse amplitude.