119 results about "Sensitivity testing" patented technology

Provided is a method for determining huff and puff fluid volumes in multi-scale spaces of shale oil reservoirs, including the following steps: rock sample pretreatment; porosity stress sensitivity testing; high pressure hg injection testing and nuclear magnetic resonance testing benchmarking; online nuclear magnetic resonance testing; data processing and analysis. Firstly, a changing law of multi-scale spaces of shale oil reservoirs with an effective stress is characterized through a pore stress sensitivity measurement and online nuclear magnetic resonance measurement combined experiment, and then the huff and puff fluid volumes of multi-scale spaces of shale oil reservoirs under a condition of a certain stimulated reservoir volume are calculated. A usage amount of a fracturing fluid for a fracturing horizontal well in the shale oil reservoir is determined from the perspective of giving full play to the imbibition replacement role of micro-nano pores.

A reception sensitivity test control unit 18 provided in a measurement device 1 and configured to execute a reception sensitivity test by repeatedly transmitting and receiving a test signal to a mobile terminal includes a test condition setting unit 18a that initially sets a test condition including an initial step level SL0 and a starting output level OL0 of the test signal at a start of the reception sensitivity test, and an AI prediction test condition change setting unit 18b that sets an AI prediction output level OL01, which is AI-predicted in advance by an AI prediction model based on the test condition set by the test condition setting unit 18a, as a first output level instead of the output level OL0.

The invention belongs to the technical field of power system safety analysis and control, and particularly relates to a data-driven power system transient stability evaluation method with interpretability, in the aspect of evaluation result interpretation, an SHAP (Shapley additive interpretation) method and an ALE (cumulative local effect) analysis are comprehensively applied, the SHAP method calculates marginal contribution of each feature based on the game theory, and the ALE method calculates the marginal contribution of each feature based on the game theory. And the nonlinear relation between the characteristic value and the model output is quantized. In addition, a local agent model (LIME) is adopted to train an interpretable model in a sample neighborhood to approximate black box model behaviors. In order to ensure the reliability of an explanation result, verification methods such as a characteristic sensitivity test, an anti-fact prevention and control experiment and a migration scene robustness test are adopted, and the credibility of an explanation conclusion is systematically verified in manners of disturbing key characteristics, adjusting operating parameters, constructing different working conditions and the like.

The invention discloses a method, equipment and medium for automatically testing the sensitivity of a broadband radio frequency system, and relates to the technical field of broadband radio frequency testing, and the method comprises the steps: starting a testing process, and coordinating a plurality of calibration equipment and equipment to be tested in a wireless network in the same testing time slot, synchronously sampling spectrum data of each calibration device through an air interface and processing the spectrum data into a noise distribution parameter set; and dynamically adjusting the output power of the vector signal generator and synchronously monitoring the bit error rate change according to the received power predicted value until the difference value between the bit error rate and a preset target bit error rate threshold value meets a convergence condition, recording the received power value during convergence as a sensitivity test result, and generating a test report. By generating the high-precision dynamic noise map and calculating the compensation transmitting power calibration value, accurate sensing and active compensation of the space noise of the test environment can be realized.

The invention relates to a multi-frequency sensitivity test evaluation method and system, the evaluation method is realized based on a multi-frequency sensitivity test device, and the device comprises a signal generator, an attenuator, a power amplifier, a directional coupler, a power meter, a frequency spectrograph and an interference applying module. According to the evaluation method, the sensitivity of the electronic product to single-frequency interference and multi-frequency interference in different frequency bands can be determined, modes such as frequency band sub-band division and reverse frequency spectrum monitoring are designed, the influence of multi-frequency-point signal intermodulation interference on a test result can be reduced, and the test accuracy is improved. The problem that the accuracy of a multi-frequency-point sensitivity test result is affected due to the fact that a traditional multi-frequency-point test method generates extra interference risks on the tested electronic product is solved. Meanwhile, under the condition that the multi-frequency sensitivity indication parameter provided by the invention meets a certain condition, a continuous wave sensitivity test method can be adopted to replace a multi-frequency point sensitivity test method, so that the test cost is reduced.

The present invention provides a photon counter sensitivity and stability test system and test method, which include a shielded dark box, a self-calibration standard light source, a test bench, a photon counter, an electronic system and a computer system. The self-calibration standard light source and the photon counter are placed in a test bench inside the shielded dark box. The test bench is provided with multiple test stations, and multiple groups of photon counters can be tested simultaneously each time. The computer system receives the photon counting measurement value and automatically analyzes the value of the specified time period, and automatically uploads the analysis result to the cloud server. If the result index exceeds the given technical index, an automatic alarm is issued. The electronic system is used to count the photons of the standard photon counter equipped with the self-calibration standard light source, and drive the light source to perform self-calibration according to the deviation between the count value and the standard count value, thereby eliminating the standard output light wave deviation caused by the position change of the light source due to power fluctuation or external factors, and improving the accuracy of the sensitivity test of the photon counter.

The utility model discloses a rotation sensitivity testing device for a servo turntable. The rotation sensitivity testing device comprises a workbench for installation, a supporting frame stably installed on the left side of the upper end of the workbench and a controller installed on the right side of the upper end of the workbench. The laser measuring mechanism is arranged on the supporting frame, the laser measuring mechanism comprises a first telescopic rod and a laser interferometer host, and the laser interferometer host is arranged at the lower end of the first telescopic rod; a clamping mechanism is arranged in the testing platform, the clamping mechanism comprises a reference axis body, a connecting rod, a threaded rod and a sliding clamping block, and the reference axis body is arranged in the testing platform. The servo turntable rotation sensitivity testing device is convenient for stably testing the rotation sensitivity of the servo turntable, is convenient for adjusting the mounting distance between the servo turntable and the reference shaft according to the size of the rotation center of the servo turntable, avoids detection errors, and is convenient for stably mounting the servo turntable.

The invention discloses a stress sensitivity test method for amorphous alloy iron core loss and magnetization characteristics, which comprises the following steps: S1, calculating stress distribution in a circular iron core sample, and selecting nine interference magnitude combinations to obtain the sizes of the outer diameter and the inner diameter of the iron core sample; s2, processing the iron-based amorphous alloy strip according to the same process sequence to obtain ten laminated iron core samples; s3, testing the size and quality of each iron core sample; s4, matching and grinding the outer diameters of the nine inner rings and the inner diameters of the nine outer rings with the nine iron core samples, and chamfering; s5, the nine upper pressing rings and the nine lower pressing rings are subjected to precise match grinding; s6, carrying out hot jacket installation on the nine iron core samples; s7, winding a primary winding and a secondary winding on each iron core sample; and S8, carrying out loss and magnetization characteristic test on all the iron core samples by using a soft magnetic material magnetic performance test system. According to the method, data support is provided for improving the accuracy of optimization design and performance analysis of the amorphous alloy high-speed motor.

The invention discloses a PM2.5 sensor testing method and device of an extractor hood and electronic equipment, testing is conducted in a target scene, the target scene comprises the extractor hood and a dust device, and the method comprises the steps that the extractor hood is started, and a first detection result of a PM2.5 sensor of the extractor hood is obtained; testing operation is executed once every target time interval, N times of execution are repeated, N timing durations are obtained, and the testing operation comprises the steps that the dust device is started for a preset duration, so that dust enters the PM2.5 sensor; acquiring a second detection result of the PM2.5 sensor, and starting timing when the second detection result is greater than or equal to the target detection result; a third detection result of the PM2.5 sensor is obtained, timing is stopped when the third detection result is recovered to the first detection result, and the timing duration is obtained; and obtaining a test result of the PM2.5 sensor according to the N timing durations. According to the embodiment of the invention, the dust sensitivity of the extractor hood is tested, and the use performance of the extractor hood is guaranteed.

This application provides a Saber-based inverter simulation method, which includes: generating an initial simulation test circuit; performing time-domain simulation based on the initial simulation test circuit to obtain the total loss, switching loss, and conduction loss of the power device model; transforming the initial simulation test circuit to obtain a replacement simulation test circuit, and performing sensitivity testing on the obtained replacement simulation test circuit based on the total loss, switching loss, and conduction loss of the power device model to obtain the sensitivity of each initial curve; and adjusting the power device design based on the obtained total loss, switching loss, conduction loss of the power device model, and the sensitivity of each original curve. This method can guide the design of power devices and other parameters in the circuit, effectively improving R&D efficiency and quickly achieving the goals of improving inverter efficiency, reducing losses, and meeting system efficiency requirements.

The utility model relates to the technical field of flexible circuit boards, and discloses a flexible circuit board sensitivity testing device, which comprises a top board assembly, a flexible circuit board, a flexible circuit board, a flexible circuit board, a flexible circuit board, a flexible circuit board, a flexible circuit board and a flexible circuit board connecting piece, and is characterized in that the top board assembly comprises a top board and a positioning and pressing block arranged on the top board; the carrier plate assembly comprises a carrier plate, and the carrier plate is used for bearing and placing a flexible circuit board to be tested; the upper jacking assembly comprises a mounting frame, an upper jacking mechanism, a test module and a loudspeaker device, the test module and the upper jacking mechanism are arranged on the mounting frame, and the loudspeaker device is arranged on the upper jacking mechanism. According to the flexible circuit board sensitivity testing device provided by the utility model, loading, unloading and testing of the to-be-tested flexible circuit board can be flexibly realized, each main part is respectively arranged so that each part can be rapidly replaced and adjusted according to different tested products, and the layout is flexible; in addition, the testing device can meet the operation requirement for testing the sensitivity of the flexible circuit board in a targeted mode, and is simple in structure and low in cost.

This invention relates to the field of performance optimization technology, specifically to a method for polarization sensitivity testing and parameter optimization of a non-polarized liquid crystal focusing lens. The method includes the following steps: collecting test information to establish a basic driving condition set; collecting light field interference fringe images to generate a phase delay matrix set; subtracting the elements of the phase matrix to obtain a deformation stress distribution matrix; determining the numerical magnitude relationship to obtain a stress over-limit judgment and characterization set; and adjusting the voltage specifications to generate a set of independent dual-layer adjustment commands. In this invention, basic driving conditions are established by extracting allowable stress and interlayer elastic parameters; the light intensity distribution is analyzed and the phase state is compared to extract deformation; global characterization scalars are calculated to determine over-limit actions; pulse width voltage is readjusted to issue commands; and based on full-aperture interferometry and dual-layer differential comparison, interlayer coupling stress is quantified and perceived, constructing a dynamic adjustment closed loop for polarization response fluctuations and rotational deviations.

The application discloses a kind of milligram level to sub-milligram level energetic material sensitivity test system and method, belong to material testing field.For the problem of large consumption of existing energetic material test sample and high error rate of result, the application provides a kind of milligram level to sub-milligram level energetic material sensitivity test system, including the pressure loading module of dynamic pressure applied to energetic sample, at least two different wavelengths of light are collected, and the common optical path module of different functional components in functional component module is separated to different wavelengths of light path, the functional component module of in-situ observation structure evolution and reaction phenomenon of energetic sample under pressure loading;Ensure the time synchronization of pressure loading module, common optical path module and functional component module when working Synchronous control module.The application realizes the precision measurement of milligram level to sub-milligram level energetic material sensitivity, and the test result is objective and has high repeatability, which provides a powerful means for rapid and safe evaluation and initiation mechanism research of new energetic material.

The application provides a radio station sensitivity test auxiliary device and a use method thereof. The auxiliary device comprises a first access unit, a second access unit, a control unit, a mixing unit, a local oscillator unit, a first switch unit and a second switch unit. Two kinds of communication modes are included between the first switch unit and the second switch unit. The first communication mode is to directly connect the first switch unit and the second switch unit, and the second communication mode is to connect the first switch unit and the second switch unit through the mixing unit. The control unit is connected with the first switch unit, the second switch unit, the first access unit, the second access unit and the local oscillator unit, and is used for switching the communication mode of the first switch unit and the second switch unit to realize the switching of the test mode, setting the attenuation values of the first access unit and the second access unit and setting the frequency value of the local oscillator signal. The radio station sensitivity test auxiliary device is used for radio station sensitivity test, and four kinds of test modes are included.

The present invention discloses a method and system for detecting lithium battery thermal runaway fire and testing the fire sensitivity. The method includes: if a test start message is received, a start instruction is sent to a generating device to generate a fire environment, the test environment monitoring data collected by a data acquisition device is obtained and sent to a display device for display, and it is determined whether the test environment monitoring data matches preset detection conditions; if it matches, the detection result of the device under test is obtained. The above method can comprehensively detect the test environment monitoring data including temperature monitoring data, carbon monoxide concentration monitoring data, carbon dioxide concentration monitoring data, hydrogen concentration monitoring data, smoke concentration monitoring data and ion concentration monitoring data and determine whether it matches the detection conditions, so that the device under test is in a set environment, and the device under test is accurately and comprehensively tested by simulating the real field environment, improving the efficiency of testing the fire detection sensitivity of the device under test.

Contemplated test kits, diagnostic apparatus and methods using same for food sensitivity are based on rational-based selection of food preparations with established discriminatory p-value. Kits and diagnostic apparatus include those with a minimum number of food preparations that have an average discriminatory p-value of ≤0.07 as determined by their raw p-value or an average discriminatory p-value of ≤0.10 as determined by FDR multiplicity adjusted p-value. In further contemplated aspects, compositions and methods for food sensitivity are also stratified by gender to further enhance predictive value.

The utility model discloses a sensitivity testing machine for a constant-temperature shower, and relates to the technical field of shower testing. The sensitivity testing machine of the constant-temperature shower comprises a testing machine table and a constant-temperature faucet body, an installation frame is fixed to the rear side of the top of the testing machine table, a water inlet pipe is embedded in the installation frame and communicated with a water inlet of the constant-temperature faucet body, a supporting shaft is rotationally arranged on the installation frame, a supporting plate is fixed to the front end of the supporting shaft, and a transparent measuring cup is arranged on the supporting plate. A reciprocating screw rod is arranged on the upper side of the testing machine table, a movable block is arranged on the reciprocating screw rod in a threaded mode, a connecting rod is fixed to the front end of the movable block, an induction plate is fixed to the upper end of the connecting rod, and a turnover mechanism is arranged between the movable block and the supporting shaft. And in combination with the turnover mechanism, the purpose of continuously testing the sensitivity of the constant-temperature faucet body is achieved.

The present application relates to the technical field of magnetic head production, and particularly relates to a magnetic head sensitivity test device, which comprises a table top, a lead screw and a supporting rod arranged above the table top, the lead screw is driven to rotate by a conveying motor, a sliding table is further arranged above the table top, a plurality of threaded pipes are fixed on the sliding table, the lead screw passes through the threaded pipes and is threadedly connected with the threaded pipes, a supporting pipe is further fixed on the sliding table, the supporting rod passes through the supporting pipe and is slidably connected with the supporting pipe, a plurality of placing grooves are further arranged on the sliding table, a plurality of jacks are uniformly arranged in the placing grooves, a fixing seat is further fixed on the bottom of one side of the sliding table, a conductive needle electrically connected with the jacks is arranged on the fixing seat, a plurality of test air cylinders are further fixed on the table top, a fixing plate is further arranged on one side of the table top, the piston rods of the test air cylinders are all fixed with the fixing plate, and a positioning plate is further arranged on one side of the fixing plate. The device can realize automatic sensitivity test of the magnetic head.

The present application relates to the technical field of safety light curtain calibration test, and specifically relates to a multi-channel safety light curtain synchronous calibration and sensitivity test method, which comprises the following steps: setting up a multi-channel safety light curtain, modulating a test signal and emitting an infrared light beam from a light emitter of each channel of the multi-channel safety light curtain, and obtaining a response signal of a light receiver of each channel; regarding an arbitrary channel as a target channel, performing time domain and frequency domain analysis on the test signal and the response signal, extracting a response delay parameter and a signal attenuation degree of the target channel, and then obtaining a time-frequency coefficient of the target channel in combination with the response delay parameter and the signal attenuation degree; obtaining running scene information of the multi-channel safety light curtain, obtaining a sensitivity threshold of the target channel through the time-frequency coefficient and the running scene information, and performing sensitivity calibration on the multi-channel safety light curtain based on the sensitivity threshold. The present application improves the calibration efficiency and test precision of the multi-channel safety light curtain.

This invention relates to the field of sensitivity testing technology, and more particularly to a method for evaluating the sensitivity of a microseismic monitoring system. This method, based on the magnitude and source location of microseismic events over a period of time, can realistically reflect the network monitoring capability under current mine engineering structural conditions and the health status of the microseismic monitoring system. It uses the geometric parameter of the distance from the microseismic event to the sensor involved in locating the event to group and refine the sensitivity of each interval to obtain the maximum goodness of fit. The sensitivity of any point within the monitoring range is determined by the distance to the fourth nearest sensor. Finally, a network sensitivity cloud map can be obtained through interpolation. This method is used to evaluate the sensitivity of the microseismic monitoring system under current mine engineering structural conditions and the health status of the microseismic monitoring system, providing a basis for the current performance evaluation and subsequent optimization and expansion of the system.

The invention belongs to the technical field of touch performance analysis, and provides a touch performance analysis method and system suitable for touch display glass, and the method comprises the steps: carrying out the grid form division of the touch display glass according to the same area, and obtaining a plurality of touch test regions, the method comprises the following steps: performing multiple touch performance tests on touch display glass on a touch test area, evaluating a mistaken touch risk of the touch test area, and identifying an area with a high mistaken touch risk and an area with a low mistaken touch risk in the touch test area; by performing multiple sensitivity tests on the area with the low mistaken touch risk, evaluating the touch sensitivity in the area with the low mistaken touch risk and identifying the area with the low sensitivity in the area with the low mistaken touch risk, the problem areas are classified according to the similarity between the sensitivity deviation and the mistaken touch rate deviation, the touch pressure intervals are adjusted according to different clusters, and the accuracy of the mistaken touch risk is improved. And an optimal pressure value for balancing the two pressure values is searched through compatibility analysis.

The invention discloses a CRISPR (clustered regularly interspaced short palindromic repeats)-based method for detecting eDNA (deoxyribonucleic acid) of a dolphin sinensis in seawater, which comprises the following steps: firstly, extracting muscle tissue DNA of the dolphin sinensis and five related species, and carrying out target tissue acquisition to obtain a target DNA sample; establishing an RPA reaction system, performing an RPA amplification reaction according to the target DNA sample, and screening out an RPA primer pair capable of specifically amplifying the COI gene segment of the dolphin chinensis; establishing a crRNA screening reaction system, preparing in a PCR (Polymerase Chain Reaction) tube, and collecting a fluorescence signal of an FAM channel through a qPCR instrument for crRNA screening; and carrying out sensitivity test and specificity test based on the screened RPA primer pair and crRNA, and selecting an optimal detection combination. The detection time is further shortened, the operation difficulty is reduced, the requirement is low, and the sensitivity and the accuracy are relatively high.

The invention discloses a receiving sensitivity testing method and system based on a Bluetooth HCI command and conduction isolation, and relates to the technical field of wireless communication testing. The method comprises the following steps: constructing an electromagnetic shielding test environment, and carrying out system calibration in the test environment to obtain a power calibration value and an inherent loss value; measuring background noise power of each channel, and determining an optimal test channel and a power compensation factor in combination with a reference noise threshold; according to the Bluetooth communication protocol physical layer parameters and the target packet error rate, determining the number of theoretical transmitted data packets, and calculating a judgment threshold of the number of successfully received data packets; searching a critical attenuation value, iteratively adjusting the attenuation value of the programmable attenuator according to a judgment threshold value, and adjusting an attenuation step value according to the change rate of the number of successfully received data packets; and calculating the final receiving sensitivity based on the power calibration value, the inherent loss value, the critical attenuation value and the power compensation factor. By optimizing electromagnetic shielding, channel selection and three-stage scanning, the accuracy of receiving sensitivity testing is improved.

Contemplated test kits and methods for food sensitivity related to osteoarthritis are based on rational-based selection of food preparations with established discriminatory p-value. In some embodiments, kits include those with a minimum number of food preparations that have an average discriminatory p-value of ≤0.07 as determined by their raw p-value or an average discriminatory p-value of ≤0.10 as determined by FDR multiplicity adjusted p-value. In further contemplated aspects, compositions and methods for food sensitivity are also stratified by gender to further enhance predictive value.

The invention relates to the technical field related to intelligent sensors, in particular to an intelligent induction type sensitivity testing device of a temperature static penetrometer and a testing method thereof.The intelligent induction type sensitivity testing device comprises a workbench and a loading frame movably arranged above the workbench and used for installing a penetrometer to be tested, and further comprises a cylinder fixed to the workbench; a cloth bag for containing a soil sample is arranged in the cylinder, the bottom end of the cloth bag is connected with a first traction mechanism arranged at the bottom of the cylinder, a plurality of connecting parts distributed at equal intervals along the circumference are formed at the upper end of the cloth bag, and the plurality of connecting parts are respectively connected with a group of second traction mechanisms; the arc-shaped pieces are movably arranged in the cylinder and distributed at equal intervals along the circumference, and each arc-shaped piece is connected with a pressure applying mechanism arranged on the cylinder; through uniform pressure application and dynamic resistance adjustment, the accuracy and reliability of the test can be improved, the flexibility of the test and the richness of data are realized, and more comprehensive data support is provided for performance evaluation and optimization of the temperature static penetrometer.

The invention discloses a radio stop sensitivity test method, device and equipment, and the method comprises the steps: receiving a test instruction, transmitting an initialization instruction to a vehicle terminal, and transmitting an initial transmission instruction to a signal generator; judging the program signal according to the test instruction to obtain a stop judgment result, and performing accumulation judgment on the stop judgment result according to a frequency judgment rule to obtain a frequency judgment result; if the frequency judgment result is met, obtaining a sensitivity test value corresponding to the current stop state as a test result; and if the frequency judgment result is not met, judging whether a signal strength adjustment condition is met, if the signal strength adjustment condition is met, sending a signal strength adjustment instruction to the signal generator and carrying out stop judgment again, and if the signal strength adjustment condition is not met, directly carrying out stop judgment again. According to the radio stop sensitivity test method, the signal strength of the radio signal can be automatically adjusted based on corresponding judgment, and the stop test result can be accurately and efficiently obtained.

Contemplated test kits and methods for food sensitivity are based on rational-based selection of food preparations with established discriminatory p-value. Particularly preferred kits include those with a minimum number of food preparations that have an average discriminatory p-value of ≤0.07 as determined by their raw p-value or an average discriminatory p-value of ≤0.10 as determined by FDR multiplicity adjusted p-value. In further contemplated aspects, compositions and methods for food sensitivity are also stratified by gender to further enhance predictive value.

The utility model relates to a detector sensitivity detection device convenient to replace gas cylinder relates to the technical field of detector sensitivity detection technique, especially is a kind of detector sensitivity detection device convenient to replace gas cylinder, it include: support part, detection part and connecting mechanism, detection part is installed on support part, when detection part senses detector, detection part sprays detection instrument, to detect the sensitivity of detector, connecting mechanism includes: connecting block and clamping block, connecting block is installed on detection part, clamping block is installed on support part, when connecting block is connected with clamping block, detection part is installed on support part, when connecting block is not connected with clamping block, detection part is detached from support part.The utility model is connected by the detachable connection mode of support part and detection part, can replace different detection part according to different types of detector, so, without equipping support part for each type of detector, reduce the use cost of whole detection device by reducing support part.

The present invention discloses a road condition statistics method for TPMS sensitivity testing, comprising: first, pre-storing multiple groups of calibration data formed by classifying the vehicle speed range corresponding to each road condition into a CAN bus recorder; obtaining the current vehicle speed through the CAN bus recorder and comparing it with the corresponding vehicle speed range in the multiple groups of calibration data pre-stored in the CAN bus recorder to determine the current road section traveled on, performing human-computer interaction with the driver on the road section status, and marking and storing the result after waiting for the driver's confirmation; this solution determines the current road condition through the vehicle speed information and the pre-stored calibration data in the CAN bus recorder, performs human-computer interaction with the driver, and marks the result after waiting for the driver's confirmation, thereby greatly improving the reliability of subsequent data screening.

The present invention discloses a receiving sensitivity test system for a data link system and an application method thereof, comprising a receiver and a corresponding signal input device, further comprising: a corresponding power splitter is provided between the signal input device and the receiver, and the power splitter is also connected to a spectrum analyzer for testing; wherein a corresponding adjustable attenuator is provided between the power splitter and the signal input device; the receiver, the spectrum analyzer, the power splitter, the signal input device, and the adjustable attenuator are respectively connected by a plurality of corresponding first radio frequency cables to obtain a corresponding test environment. The present invention provides a receiving sensitivity test system for a data link system and an application method thereof, providing a software configuration function for transmitting attenuation of airborne equipment and ground equipment, namely, a function for calculating the receiving sensitivity of the receiver by using an adjustable attenuator in combination with the detection of the receiving state by a host computer during measurement, so that it is coordinated with the test process and the test effect meets the requirements.