69results about How to "Improve sampling accuracy" patented technology

This invention relates to the field of hydrogeology, specifically to a groundwater sampling device for hydrogeology. The device comprises multiple vertically arranged splicing rods, each with a threaded hole at its top and a screw head fixedly connected to its bottom. The screw head engages with the adjacent threaded hole. A circular hole is formed on the top surface of a sleeve plate, which slidably engages with the outer wall of the splicing rod. A motor box is located on one side of the sleeve plate. In this invention, the splicing rods are sequentially spliced ​​and inserted into a well. A welded metal bracket secures the splicing rods to the wellhead. The sleeve plate is lowered to the aquifer using an automatic winch. An electric push rod moves the sampling mechanism, allowing it to drill into the aquifer through the well pipe's filter holes. The sampling mechanism then samples the water flow within the aquifer, improving the accuracy of sampling a single aquifer. After sampling, a filling mechanism can backfill the aquifer with soil, facilitating sampling operations for users.

This invention provides a method for zeroing the cumulative error of a sensor under any mechanical transmission ratio, applicable to scanning turntables with any mechanical transmission ratio, and accurately measuring turntable position changes under any transmission ratio. The invention involves installing a light-shielding plate with a width of 3-4 mm on a rotating shaft. The light-shielding plate rotates with the shaft, while a photoelectric sensor is installed on a stationary frame, serving as a signal generator to zero the cumulative error. This method is low-cost, has simple hardware circuitry, and can accurately measure turntable position changes under any transmission ratio.

The application discloses a circuit for improving sampling precision of a position sensor, comprising a reference voltage module, a sensor interface module, a filter module, a first-stage amplification module and a second-stage amplification module; the reference voltage module is connected with the sensor interface module and is used for providing a reference voltage to the interface module; the filter module is connected with the sensor interface module and is used for selecting input signal voltage of the interface module according to frequency, avoiding interference of high-frequency signals and stabilizing voltage of the circuit; the first-stage amplification module is connected with the filter module and is used for primary amplification of the voltage transmitted by the filter module; and the second-stage amplification module is connected with the first-stage amplification module and is used for secondary amplification of the voltage transmitted by the first-stage amplification module. The circuit can not only greatly improve sampling precision of the position sensor, but also can be applied in many circuits by changing parameters of resistor devices, and has high universality.

The application belongs to the technical field of direct current substation, and particularly relates to a battery internal resistance detection device. The application comprises an embedded monitoring host module for receiving and displaying battery internal resistance data, having an alarm and a background monitoring communication interface, the embedded monitoring host module being connected with a communication module, the embedded monitoring host module being connected with an information convergence module through the communication module, the information convergence module being connected with a single-section internal resistance sampling module, the single-section internal resistance sampling module being connected with a battery module; wherein the number of the single-section internal resistance sampling modules is the same as the number of the battery modules, each single-section internal resistance sampling module is directly connected with each corresponding battery module through a short connecting line, and is connected in parallel to the information convergence module through a pressure contact crystal head connecting line. The application has the advantages of efficient expansion, adaptation to different sizes of battery groups, short sampling line distance, simple installation process, high detection precision, low cost and good adaptability of the device.

The utility model provides an intelligent full-automatic transformer oil sample needle cylinder sampling device, which relates to the technical field of electrical equipment operation and maintenance, and comprises a case, an adapting and sampling unit and a control unit, the adapting and sampling unit comprises a component adapted to different oil taking ports, a valve and a needle cylinder sampling component, the control unit realizes sampling process control, parameter setting, state switching and data recording and displaying and supports wireless transmission, the whole sampling process is automatically controlled by a single chip microcomputer through the intelligent control unit according to preset programs and parameters, and the sampling efficiency is improved. Comprising switching of valves, movement of a needle cylinder piston and the like, manual operation is not needed, the sampling precision is improved, the electromagnetic force of an electromagnet is precisely controlled by an electromagnetic control unit, the needle cylinder piston is driven to move precisely, and compared with existing equipment which can only use a peristaltic pump for sampling, the error range of the sampling amount can be controlled within the extremely small range; and the sampling precision is greatly improved.

The invention provides an acid rock reaction kinetics testing device and method, and relates to the technical field of acid rock reaction kinetics test.The device comprises a reaction kettle, a rotation driving part is arranged in the reaction kettle, and the rotation driving part is used for being connected with a rock core sample and can drive the rock core sample to rotate in the reaction kettle; a first heating part is arranged on the outer side of the reaction kettle; the acid injection structure is connected with the liquid inlet pipeline of the reaction kettle, and the acid injection structure is used for being connected with a gas source; the cooling structure is connected with a liquid outlet pipeline of the reaction kettle; the reinjection structure is connected with an output pipeline of the cooling structure and is connected with the acid injection structure through a reinjection pipeline; the problems that in the acid rock reaction kinetics testing technology in the prior art, spraying of steam-state spent acid can affect the sampling precision of the spent acid and form potential safety hazards, and for a high-temperature and high-pressure reaction kettle, a large amount of time needs to be consumed for cooling after each test, and continuous testing cannot be conducted are solved.

The invention provides a pollutant spatial distribution and blow-off and tempering limit measurement method based on a flat flame burner, and relates to the technical field of combustion experiment measurement. According to the method, on the basis of a flat-flame burner, a quartz cover is arranged above the flat-flame burner to form a locally-closed space, and a long-strip-shaped measuring window is formed in the side face; an X-Y plane movable precision probe structure is arranged on the outer side of the window, so that the tip of the sampling probe can extend into a region adjacent to the flame at any coordinate point in the window plane; a camera is arranged on the outer side of the quartz cover, and a camera pixel coordinate probe physical coordinate conversion relation is established through calibration; controlling the probe to move point by point according to a preset scanning path, synchronously collecting pollutant concentration and flame images, and obtaining a pollutant two-dimensional or three-dimensional distribution field under a given working condition; parameters such as gas flow and air-fuel ratio are adjusted, the blow-off / tempering limit is approached and crossed, scanning is repeated at key nodes, and pollutant distribution characteristics in different combustion stability states are obtained.

The application discloses a power battery voltage sampling filtering method and device and a vehicle. The absolute value of the difference between the current sampling value and the sampling reference value is compared with a preset limit value LIMIT, so that the wrong sampling value can be filtered out, an array Array[N] with a length of N is established, and after the valid sampling value is obtained, the valid sampling value is added into the array Array[N] and then the data in the array Array[N] is averaged. The application can effectively overcome the pulse interference caused by accidental factors, eliminate the sampling value deviation caused by random interference, has a good inhibitory effect on periodic interference, and has high smoothing degree of filtering.

The utility model relates to environmental monitoring equipment technical field especially relates to a groundwater sampling device for environmental monitoring. Including bottom disc, bottom disc is equipped with one, and the middle hole is set up on the bottom disc, to make sampling pump and water suction pipe through the middle hole and extend into the well, rotationally set up the turntable on the bottom disc, four arc grooves are set up on the turntable along the circumference, the moving rod that is consistent with the number and the layout of arc groove is also slidably provided on the bottom disc along the circumference, and the end of moving rod is provided with the embedded end that is embedded in adjacent arc groove. The utility model discloses through setting up moving rod and the structure of the stopper, can effectively limit the water suction pipe and sampling pump in the shaking of the falling process, avoid its and the well wall and lead to the soil falling off to collide or rub, thereby significantly reduce the risk of water sample being contaminated, help to keep the stability of sampling equipment operation, ensure the accuracy of sampling position, improve sampling accuracy and reliability.

The utility model belongs to an anaerobic reaction device for chemical wastewater treatment, and particularly relates to the technical field of wastewater treatment.The anaerobic reaction device comprises an anaerobic reaction tank and a moving mechanism, the moving mechanism comprises two rectangular plates, a transverse screw is installed between the two rectangular plates, and a transverse threaded seat is arranged on the transverse screw; a mouth-shaped frame is mounted on the side surface of the transverse threaded seat, a longitudinal screw rod is rotationally mounted between the inner walls of the frame, a longitudinal threaded seat is arranged on the longitudinal screw rod, and the sampling tank can be driven to transversely move and longitudinally move through the moving mechanism, so that the sampling range of the sampling tank is enlarged, and wastewater at multiple positions can be sampled; the wastewater sampling diversification is guaranteed, sampling can be carried out at multiple positions in multiple pool bodies, the subsequent detection accuracy is improved, after the sampling tank is filled with wastewater, the motor is used for driving the baffle to rotate to seal all the conical holes, and the situation that the wastewater continuously enters the sampling tank when the subsequent sampling tank is moved out of the wastewater is avoided.

This utility model relates to the field of concrete testing technology, specifically a multi-purpose concrete drilling and sampling machine. It includes an equipment support frame, a connecting frame fixedly connected to the left side of the support frame, and a mounting base slidably connected to the surface of the connecting frame. A sampling component is mounted on the front side of the mounting base. The sampling component includes a limiting groove, a limiting slider, locking teeth, an adjusting screw, a second connecting block, an adjusting plate, a locking groove, a linear guide rail, a linear slider, a mounting block, a progress motor, a drill rod, a sampling drill bit, and a pressure rod. The adjusting plate is rotatably connected to the front surface of the mounting base. By rotating the adjusting plate, the angle of the sampling component can be adjusted to sample inclined or curved concrete surfaces, improving testing accuracy. The adjusting plate is locked and fixed by two sets of limiting sliders in cooperation with the adjusting screw, improving stability during the sampling process.

This invention provides a vehicle AD sampling device and method. The vehicle AD sampling device includes a vehicle power system, an AD sampling circuit, and a processor. In this invention, based on AD sampling of a primary reference analog voltage by the AD sampling circuit, the processor receives the primary and secondary reference analog voltages and performs analog-to-digital conversion to obtain a primary and secondary reference digital voltage. Then, the relative deviation of the primary reference analog voltage is calculated based on the primary and secondary reference digital voltages. Finally, the digital signal is calibrated based on the relative deviation. This effectively improves the AD sampling accuracy of the primary reference analog voltage, achieving high sampling precision. The corresponding hardware structure can be fully implemented based on existing hardware structures, making it simple and easy to implement. Only a small amount of additional calculation is required from the processor, and the computational load is relatively small.

The utility model discloses a sampling device of piled fermented grains for white spirit brewing, which comprises a sampling tube, a link rod and a sampling head, and a pressing plate is arranged in a mounting groove formed in the upper side of the outer cambered surface of the sampling tube; the connecting rod comprises a long rod and a first rotating bolt, the first rotating bolt is in threaded connection with the interior of a threaded groove formed in the lower side of the right end of the pressing plate, and the middle of the outer arc face of the first rotating bolt is rotationally connected with the long rod; the sampling head is arranged outside the sampling tube, the link rod further comprises supporting rods, the supporting rods are rotationally connected to the lower side of the outer cambered surface of the long rod, the sampling head comprises a sampling bin conical blade, a ferrule and a screw, and the ferrule is arranged on the lower side of the outer cambered surface of the sampling tube. The device is simple in structure and convenient to operate, can effectively complete accurate sampling operation of stacked fermented grains at a specific depth, replaces a traditional manual pile breaking and sampling mode, and does not affect the effect of a wine brewing process.

This invention belongs to the field of mixed-signal integrated circuit technology, and specifically relates to an N-bit successive approximation analog-to-digital converter based on pre-sampling. After the SAR ADC completes the quantization of the (J-1)th cycle, this invention first connects the lower plate of the CDAC capacitor array to a reference low level V via a reset switch. REFN Perform a reset operation. After the reset is complete, disconnect the reset switch and then connect the upper plate to the common-mode voltage V. CM According to the law of charge conservation, after reset, the voltage level of the lower plate will return to the input signal voltage V sampled in the previous cycle (J-1). IN (J-1); then sampling of the input signal for the Jth cycle begins, and the lower plate is connected to the input signal V of the current cycle (J) via a sampling switch. IN (J), at this point, it is only necessary to establish ΔV=V IN (J)- V IN Sampling can be completed with (J-1). This invention improves the sampling accuracy of SAR ADC at the same sampling time by changing the switching timing without requiring additional front-end driving circuits, reduces charge back-kickback to the ADC input buffer, and lowers its bandwidth design requirements.

The application relates to the technical field of elevators, in particular to an on-site access control cabinet test method, system, equipment and medium. The application simulates the main control board layout through a jig board, establishes a connection with a card reader, an electric lock and a door magnetic interface of the access control cabinet by using a probe array, first carries out low-voltage conductivity test, impedance test and voltage reference calibration to obtain preliminary results; after the pre-check passes, the control cabinet is connected with an actual elevator main board to carry out function verification and system joint debugging to obtain second-stage test results; then the system analyzes the test data, identifies abnormal interface positions and fault types, and accurately broadcasts fault information and terminal identification through a voice system; the layered test mechanism avoids the risk of main board damage, the multi-channel concurrent test improves the efficiency, the voice guidance realizes rapid positioning, the safety hidden danger in the traditional test is effectively solved, and the accuracy and the standardization level of the test are improved.

The utility model relates to the technical field of coating processing, especially a coating processing equipment with sampling structure, including the stirring tank of rotation connection with the chassis, the sampling mechanism of quick taking out coating sample is provided to the stirring tank back, the chassis and the stirring tank are provided with the stirring mechanism that will be even mixed coating. The utility model discloses through setting up sampling mechanism, in the process of coating production, need not open stirring tank and can sample, avoid coating and a large number of air contact and cause component reaction, and the mechanism can also obtain the sample of different positions, improve sampling efficiency and accuracy, through setting up stirring mechanism, in the process of agitating processing to coating, can swing to coating in front and back to stirring tank to the cooperation with stirring structure, can mix and stir coating, let coating each component even fusion, reduce the dead angle of stirring, thereby improve the production quality of coating, also can lay the foundation for the accuracy of subsequent sampling detection.

The invention relates to a conduction voltage drop on-line test circuit and a test system. The on-line test circuit for the conduction voltage drop comprises a tested module, a clamping module, a first current source module, a compensation module, a second current source module and a differential amplification module, one end of the clamping module is connected with the tested module, and the other end of the clamping module is connected with the output end of the first current source module; the output end of the first current source module is connected with the positive input end of the differential amplification module; the output end of the second current source module is connected with the compensation module, and the output end of the second current source module is connected with the reverse input end of the differential amplification module. The on-line test circuit for the conduction voltage drop has the advantages of being compatible with negative voltage, high in sampling precision and high in test precision.

The application relates to a carbon tritium sampler, which relates to the technical field of sampling equipment and comprises a box body, a sampling head installed on the box body, a plurality of sampling bottles sequentially communicated through a sampling gas path installed in the box body, a circulating cooling device, at least one exhaust pipe and an exhaust passage communicated with the outside world. The sampling bottle located at the first position is communicated with the sampling head through a fan, and the sampling bottle located at the last position is communicated with the outside world. The circulating cooling device comprises a cooling liquid circulating assembly and a cooling fan for cooling the cooling liquid circulating assembly. At least one exhaust pipe is installed in the box body, the exhaust pipe is provided with an exhaust passage communicated with the outside world, the air inlet of the cooling fan is communicated with the outside world, and the outside air is exhausted through the cooling fan, cooled to the cooling liquid circulating assembly and then enters the exhaust passage. The application can effectively and quickly cool the solution in the sampling bottle, is not affected by the temperature in the box body, improves the sampling stability, maintains the normal sampling and the like.

The utility model discloses an aluminum base FFC line row connecting structure, including FFC line row, pressure welding terminal and connector shell, FFC line row includes insulating layer and many flat conductors, and flat conductor has the conductive connecting part of the exposed connection mouth formed in insulating layer, and pressure welding terminal sets up the multiple pressure welding thorn for the puncture FFC line row insulating layer on the pressure welding part, and multiple pressure welding thorn rivet pressure fixed on the conductive connecting part on FFC line row, and the FFC line row of this technical scheme adopts the pressure welding process and realizes the mechanical bite fixed between pressure welding terminal and flat conductor, and the complex link such as medium processing, temperature control of welding is saved, and the process cost and operation difficulty are reduced significantly, and the pressure welding thorn punctures insulating layer through mechanical force and directly forms physical bite with the pressure welding of conductive connecting part, and the connecting strength is much higher than the adhesive force of soldering tin, and it is not easy to come loose, and this multi-point bite structure can disperse vibration impact force, and is suitable for the high frequency vibration working condition of automobile battery.

This utility model discloses a drill-and-take separation type farmland soil sample collection device, comprising: a movable chassis for communication with a microcontroller; a drilling mechanism; a soil-taking mechanism; a collection mechanism including a telescopic push rod, a collection box, a stepper motor, and a six-hole tray shaft-driven to the stepper motor drive end. Both the telescopic push rod and the six-hole tray are for communication with the microcontroller. The collection box is slidably mounted on the frame structure along the arrangement direction of the drilling and soil-taking mechanisms. The six-hole tray is rotatably connected to the collection box and has six sample-holding slots distributed on the same circumference. A navigation component is used for communication with the microcontroller and for collecting and storing three-dimensional spatial data of each sampling point. This drill-and-take separation type farmland soil sample collection device can complete the collection of soil samples from multiple points and store the soil samples from each sampling point separately, reducing labor intensity and improving sampling efficiency and accuracy.

The invention discloses a current sampling and amplifying circuit and a component-level power electronic device. The current sampling and amplifying circuit comprises a current amplifying module used for amplifying a current signal output by an external circuit to obtain an amplified current signal; the input end of the sampling module is electrically connected with the current amplification module, and the sampling module is used for converting the amplified current signal into a voltage signal; the first input end of the differential signal obtaining module is electrically connected with the input end of the sampling module, the second input end of the differential signal obtaining module is electrically connected with the output end of the sampling module, and the differential signal obtaining module is used for obtaining a differential signal according to the voltage signal of the input end of the sampling module and the voltage signal of the output end of the sampling module; and the differential amplification module is used for amplifying the differential signal. The current sampling and amplifying circuit provided by the embodiment of the invention can effectively avoid the problem of common-mode interference.

The invention discloses a self-suction type liquid extractor and a method. The extractor comprises a shell, an internal pressure cavity, a pressure generating unit, a liquid suction unit and a liquid spraying unit. The pressure generating unit linearly moves in the pressure cavity to alternately generate positive pressure and negative pressure; the liquid suction unit is provided with a first one-way flow guide structure and a filtering structure, and is opened and sucks filtered liquid under negative pressure; the liquid spraying unit is provided with a second one-way flow guide structure and an atomization structure, and is started under positive pressure to atomize and spray out liquid; and a locking mechanism is arranged on the pressure generation unit and is used for locking the position after descending and can automatically ascend under the action of reset force after unlocking. The closed type pressure cavity is adopted, pollution and liquid backflow are avoided, liquid suction, liquid storage and liquid spraying are continuously carried out with one hand through the operation mode of pressing locking and unlocking automatic reset, operation is easy and convenient, efficiency is high, and the liquid transfer device is suitable for scenes such as food tasting and experimental analysis needing sterile and accurate liquid transfer.

This utility model discloses a combined synchronous display and controller utilizing AC sampling, including a current sampling circuit and a first voltage sampling circuit connected to the machine side, a second voltage sampling circuit connected to the system side, and a microprocessor. The microprocessor includes a first set of synchronous sampling AD ports and a second set of synchronous sampling AD ports. The current sampling circuit and the first voltage sampling circuit are connected to the first set of synchronous sampling AD ports, the first voltage sampling circuit is connected to the second set of synchronous sampling AD ports, and the second voltage sampling circuit is connected to the second set of synchronous sampling AD ports. By simplifying the number of sampling channels, replacing some hardware circuits with digital calculations performed by the microprocessor, and combining RC filtering with a unified bias reference, the system achieves simplified circuit structure, high sampling accuracy, strong anti-interference capability, accurate synchronization judgment, and effective electrical parameter measurement.

This invention relates to a low-temperature drift, high-precision heat flux conversion circuit, characterized by comprising: using two operational amplifiers U1A and U1B with identical parameters on the same substrate, whose temperature drifts are similar, and setting the two operational amplifiers to be in opposite directions to cancel out the effects of their offset voltages and temperature drifts, first forming a fully differential amplifier circuit to amplify the small signal from the heat flux sensor; the amplified signal is then passed through two other operational amplifiers U2A and U2B on the same substrate to form an additive bias circuit, obtaining a high-precision voltage signal V0 with adjustable bias, low temperature drift, and low offset. The beneficial effect of this invention is that it reduces the output offset voltage, thereby reducing the impact of input offset voltage and temperature drift on the accuracy of heat flux acquisition, and improving the accuracy of heat flux sampling.

The invention relates to the technical field of water body sampling, and discloses a water body stratified sampling device for water quality detection, the water body stratified sampling device comprises a support column, the top of the support column is fixedly connected with a fixing ring, one end, far away from the support column, of the fixing ring is fixedly connected with a shell, and the outer wall of the shell is fixedly connected with a fixing block; the fixing block is fixedly connected with the fixing ring, the end, away from the fixing ring, of the supporting column is rotationally connected with a fixing assembly, a telescopic rod is arranged in the shell and fixedly connected with the top of the shell, and the bottom of the telescopic rod is fixedly connected with a fixing rod. The end, away from the telescopic rod, of the fixing rod is fixedly connected with a connecting rope, and the end, away from the fixing rod, of the connecting rope is fixedly connected with a traction ball, so that water bodies with three different depths can be sampled at the same time, the working efficiency of equipment is improved, the impact resistance of the sampling pipe is improved, and the sampling pipe is prevented from inclining in the sampling process; the sampling precision is improved.

This invention discloses an active power calibration method, a drive circuit, and an air conditioner. The active power calibration method includes: acquiring instantaneous current values ​​in the drive circuits of multiple sets of electrical devices under test, setting a compensation coefficient for each instantaneous current value to obtain an instantaneous voltage value, and calculating the effective value of the input voltage based on the instantaneous voltage value; determining the sampling time of the inductor current parameter in the drive circuit based on the switching time parameter of the switching transistor in the drive circuit, and calculating the effective value of the input current based on the inductor current parameter acquired at the sampling time; and calculating the active power of the drive circuit of the electrical device using the effective value of the input voltage and the effective value of the input current. Compared with the prior art, this invention adopts a voltage sampling compensation method, considers the switching delay of the switching transistor and the equivalent point of the triangular wave to select the sampling time of the inductor current parameter, and combines it with a power factor improvement method to improve the calculation accuracy of active power, thereby improving the calculation accuracy of energy consumption.

The application discloses a same-position sampling device, which improves the technical problems of low sampling efficiency, poor sampling precision and poor operation convenience. The device comprises a base body and a rotating short section arranged at the top end of the base body, the rotating short section is used for controlling the rotation of the base body, the base body is provided with a core taking module, a liquid taking module, a driving piece, a pushing module and a hydraulic module, the liquid taking module and the pushing module are arranged at intervals of 180 degrees from the core taking module, the liquid taking module and the pushing module are located in the same vertical plane, and the core taking module and the liquid taking module are located in the same horizontal plane, so that the core taking module completes core sampling, and after the rotation of the base body is controlled by the rotating short section by 180 degrees, the liquid taking module can be aligned with the sampling hole. The application can improve the sampling efficiency, improve the sampling precision and improve the operation convenience.

The utility model relates to a kind of cable multifunctional grounding box device circuit based on grounding topology free switching, including grounding box main ground return circuit, MCU main control IC circuit, button input signal monitoring circuit, TA current sampling circuit, air switch driving circuit, air switch opening and closing in position signal circuit and 4G wireless transmission circuit;Button input signal monitoring circuit passes to the button state signal to MCU main control IC circuit generation air switch control signal and drives air switch opening and closing;Air switch opening and closing in position signal monitoring circuit returns air switch opening and closing in position signal;TA current sampling circuit collects cable inner and outer core grounding protection current and is transmitted to MCU main control IC circuit;4G wireless transmission circuit uploads the data received by MCU main control IC circuit to host computer monitoring, while returning grounding topology switching signal, so that MCU main control IC circuit executes switching action.The utility model effectively solves the trouble that current grounding box needs to be removed or reconstructed when line is adjusted.

This invention discloses a motor power calculation circuit, method, motor, compressor, and vehicle. The motor power calculation circuit includes: a bus voltage sampling unit adapted to sample the motor's bus voltage to obtain a sampled bus voltage value; a phase voltage sampling unit adapted to sample the phase voltage of any phase of the motor to obtain a sampled phase voltage value; a first current sampling unit adapted to sample the peak value of the motor's bus current to obtain a peak bus current value; a second current sampling unit adapted to sample the effective value of the bus current to obtain an effective bus current value; and a control unit configured to calibrate the sampled bus voltage values ​​and phase voltage values ​​to obtain a target voltage value, calibrate the peak bus current value and the effective bus current value to obtain a target current value, and determine the motor's input power based on the target voltage value and target current value. This motor power calculation circuit can obtain accurate input power.

The application discloses a mobile phone application performance automatic test system and method based on artificial intelligence, and relates to the technical field of electric digital data processing.The system comprises a sampling condition monitoring module, an automatic sampling adjustment module and a test feedback module.The application performs automatic test on the mobile phone application performance based on an artificial intelligence algorithm in the current test period, monitors the sampling condition of test data in real time, then determines whether to perform automatic sampling adjustment according to the result of sampling frequency adaptation determination, if yes, monitors the data noise condition of test data after automatic sampling adjustment to perform data noise degree determination, and then performs test feedback, and simultaneously determines whether to perform secondary sampling adjustment, otherwise, continues to monitor the data sampling condition, thereby improving the adaptation degree of the test condition of test data and the sampling frequency, and solving the problem of low adaptation degree of the sampling frequency and the corresponding test condition in the process of testing the mobile phone application performance in the prior art.