95 results about "Electric response" patented technology

The invention belongs to the technical field of geophysical exploration in an extremely complex tunnel environment, and provides an air-ground and hole-tunnel multi-angle combined tunnel unfavorable geology advanced detection system and method.A first main control unit is used for establishing a unified time reference and controlling an air-ground capacitive induced polarization detection unit to collect air-ground electric field data under the unified time reference; the second main control unit is used for controlling the hole-tunnel induced electric field and natural electric field combined detection unit to collect underground induced polarization response signals and continuous natural electric field signals and controlling the tunnel seismic electric field detection unit to collect seismic electric field signals and seismic wave signals; and the second main control unit is used for receiving the air-ground electric field data sent by the first main control unit, uniformly integrating the air-ground electric field data with an underground induced polarization response signal, a continuous natural electric field signal, a seismic electric field signal and a seismic wave signal which are acquired by the second main control unit to obtain a multi-field data set, and performing interpretation and inversion to obtain a potential unfavorable geologic body identification result. And the disaster source detection precision and efficiency in the extremely complex tunnel environment are obviously improved.

The invention relates to the technical field of fuel cell control, and discloses a control method of a hydrogen fuel system controller, which comprises the following steps: in response to a system shutdown instruction, controlling a DC / DC converter to maintain operation and request a preset scavenging current, and consuming residual reaction gas in a flow channel and a pipeline by using an electrochemical power generation reaction in an electric pile; meanwhile, hydrogen-cut air-down operation is executed, and the average single voltage of the electric pile is collected in real time; when it is monitored that the average monomer voltage is reduced to be below a preset anti-corrosion safety threshold value, the DC / DC converter is controlled to be disconnected, and mechanical purging is started. A time sequence interlocking mechanism of electrochemical energy depletion and mechanical purging is established, a high-potential retention path in the shutdown process is blocked from the physical and chemical source, and the safety of the shutdown is improved. Reverse polarity corrosion caused by a hydrogen-air interface effect is avoided, and the service life of the galvanic pile is prolonged.

The invention relates to the technical field of industrial process control, and discloses a vacuum induction heating process closed-loop control system applying an industrial mechanism model, which comprises the following steps: acquiring the input active power of an induction coil through a power monitoring unit, and measuring the total external radiation heat flux of the outer wall of a vacuum chamber by a heat flow sensing unit; the embedded decision-making module calculates the thermal-electric response ratio and the time derivative thereof in real time, judges the phase change critical state of the material based on the derivative change and generates a regulation and control instruction, through dynamic capture of the thermal-electric energy balance relation, recognition of the phase change critical point of the material is achieved, and by combining working condition pre-judgment of the vibration spectrum entropy and current ripple characteristic arbitration, the phase change critical state of the material is judged. An anti-interference multi-verification mechanism is constructed, and the robustness of the control system under the preset working condition is improved.

The invention discloses a VR emotion quantitative management method and system based on physical and psychological interaction, and relates to the field of psychotherapy, and the method comprises the steps: collecting the heart rate variability data, the electrodermal response data and the EEG alpha wave power data of a user in a resting state, and obtaining the EEG alpha wave power data of the user based on the heart rate variability data and the electrodermal response data; generating color, density and physical boundary parameters of the initial emotion energy field; and rendering a dynamic emotion energy field in the VR environment according to the initial emotion energy field parameters, and detecting the distance change between the user and the dynamic emotion energy field through a field density growth algorithm. According to the method, heart rate variability, electrodermal response and EEG alpha wave data are fused by adopting an S-shaped curve function to generate emotion energy field parameters, accurate mapping of physiological states and virtual environments is established, emotion recognition sensitivity is improved, treatment efficiency is improved, field density attenuation rate is dynamically controlled innovatively through parasympathetic nerve activation degree, and the treatment effect is improved. And the synergistic effect of behavior intervention and nerve regulation is realized.

The invention belongs to the technical field of intelligent fragrance control, and discloses an intelligent fragrance control system and method based on olfaction perception self-adaption, multi-dimensional data such as exhaled gas fragrance residue and skin electroreaction are captured in real time through a multi-mode olfaction fatigue monitoring unit, and 1-5 olfaction fatigue levels are accurately judged in combination with an LSTM-attention model; and then the dynamic release control unit is matched with a layering strategy, for example, short-time pulse stimulation is started in light fatigue, fragrant cross-modulation switching and concentration zeroing are triggered in heavy fatigue, and local high-concentration pseudo fatigue is avoided synchronously through a distributed space probe. By means of the design, fragrance release is always matched with the real-time olfaction state of a user, the problem that the fragrance cannot be effectively perceived after continuous exposure is thoroughly solved, it is ensured that the user can stably perceive the fragrance in different use periods, and the use experience is remarkably improved; and a complete logic chain with multi-mode monitoring, double-target sensing and cooperative control is constructed.

The utility model relates to the technical field of rare earth resource exploration, in particular to a comprehensive measuring device for hydraulic parameters and various electric responses, which comprises a constant-pressure water supply component, an adjusting valve, a measuring soil column container, a collecting and measuring component, a pressure sensor, a recorder and an electric response measuring instrument. The soil column measuring container comprises a container main body, a microporous baffle plate, two current electrodes and two measuring electrodes, the water inlet end and the water outlet end of the constant-pressure water supply assembly are respectively communicated with the container main body through pipelines, and the storage and collection assembly is arranged on the pipeline between the water outlet and the constant-pressure water supply assembly; a sample cavity between the two microporous baffles in the container main body is used for filling a sample; the adjusting valve is used for adjusting the flow; the pressure sensor, the collecting and measuring assembly, the measuring electrode and the current electrode are used for measuring hydraulic parameters and flowing electric response. According to the utility model, the hydraulic parameters and various electric responses of the sample can be accurately measured, and the electric responses under different hydraulic conditions can be measured.

The invention relates to the technical field of intelligent driving, and provides an intelligent driving method and system based on driver biofeedback. The method comprises the following steps: firstly, acquiring multi-mode biological signals such as heart rate, electrodermal response and eye movement track of a driver and a vehicle movement signal in real time through an in-vehicle sensor; carrying out cross-modal feature fusion and analysis on the signals by utilizing a driver state analysis model, carrying out parallel calculation on tensity, motion sickness and attention level indexes of the driver, and generating a quantized comfort level score; furthermore, in a trajectory planning stage, a comfort level score corresponding to each candidate trajectory is predicted through a personalized comfort level prediction model, the comfort level score is used as an optimization target parallel to safety and efficiency for comprehensive decision making, and finally an optimal trajectory is selected for execution. According to the invention, the automatic driving system can sense and respond to the subjective state of the driver in real time, the tension and motion sickness of passengers can be effectively relieved, and the riding comfort and personalized experience are improved.

The invention provides a battery fire OFF-GAS eliminating device and method based on a plasma discharge principle, and relates to the technical field of battery fire protection. According to the battery fire OFF-GAS eliminating device and method based on the plasma discharge principle, through the arrangement of the suction unit, the plasma discharge reaction unit, the sensing unit, the discharge unit and the automatic control system, after a battery fire occurs, the fire and toxic gas treatment are combined, harmful gas is sucked and treated through plasma, the decomposition rate exceeds 95%, and the safety of the battery fire OFF-GAS eliminating device is improved. Explosive toxic gas is rapidly eliminated, the performance is more than three times that of the prior art, the situation that detonation is caused by explosive mixed gas formed by high temperature and a large amount of smoke generated after the battery is on fire at the initial stage of the fire is effectively solved, and the problem that a large amount of toxic OFF-GAS is generated during the battery fire is efficiently and rapidly solved.

The invention belongs to the technical field of microcapsules, and particularly discloses a current response type essence microcapsule as well as a preparation method and application thereof. The essence microcapsule is prepared by taking a chitosan-polypyrrole composite material as a wall material and essence as a core material and coating the essence through an in-situ polymerization method, and the essence microcapsule is prepared by applying a safe and low-voltage direct current by utilizing the good film-forming property and biocompatibility of chitosan and the rapid electric response characteristic of polypyrrole. And the polypyrrole is subjected to reversible oxidation-reduction reaction to initiate swelling or shrinkage of the wall material, so that accurate and reversible regulation and control of the release rate of the essence are realized. The method is simple in process, environment-friendly, safe and easy for large-scale production, solves the problem that the traditional aromatherapy release is uncontrollable, and has the advantages of quick response, high safety, environment friendliness and the like.

The invention provides a nanofluid gradient film, a preparation method thereof and application of the nanofluid gradient film in preparation of a pressure sensor. According to the gradient film, the interlayer spacing, the charge density and the wettability of MXene are adjusted by cooperatively inserting different amounts of one-dimensional carboxylated cellulose nanofibers. A nano channel of the gradient membrane is divided into a weak confinement region, a medium confinement region and a strong confinement region, and a rapid permeation-charge shielding-confinement enhanced efficient ion transmission path is constructed. Compared with a single uniform channel, the triple gradient nano channel shows high and different force-electricity response signals to different metal cations. According to the pressure sensor constructed based on the nanofluid gradient film, the sensing performance is remarkably improved in a NaCl solution, the sensitivity of the pressure sensor is 37.28 nA cm <-2 > kPa <-1 >, the cycle stability reaches 50000 times, the response time is 119 ms, and the pressure sensor exceeds the level of currently reported similar sensors.

The discharge type desulfurization and denitrification and fine particulate matter trapping equipment comprises a reaction tower and a discharge reactor, waste gas enters the discharge reactor and then enters the reaction tower, flows from bottom to top in the reaction tower, passes through the desulfurization and denitrification reaction area and the electrostatic trapping area and then flows out from the upper part of the reaction tower; integrated collaborative purification is achieved, and the three functions are integrated; an advanced pulse power supply and an optimized reactor structure are adopted, so that the generation efficiency and the stability of discharge plasma are improved; the output parameters of the high-voltage pulse power supply, the addition amount of the absorbent and the operation cycle of the ash removal system are automatically adjusted through an intelligent algorithm; it is ensured that the system can keep the optimal operation state under different working conditions, and the adaptability and reliability of the system are improved.

The application discloses a kind of methods and systems for quickly evaluating the test of corona resistance of enameled wire, it is related to motor insulation life evaluation and corona performance test technical field, including simulating the corona stress caused by frequency conversion motor operation to enameled wire, according to frequency band different excitation time and safety protection strategy are automatically matched;Based on different types of sensors, the analysis is carried out to enameled wire electric response signal;Signal multi-domain feature analysis is carried out, and the comprehensive corona tolerance of enameled wire is comprehensively evaluated.The method disclosed in the application constitutes a rigorous logic closed loop in modeling, perception and evaluation level: driven by real excitation model, combined with nonlinear response identification, and then fed back to test control through multi-domain feature score, effectively opening the key link in the whole process of enameled wire insulation corona performance evaluation, so as to build a kind of high authenticity, high robustness, quantifiable fast corona test method.

A classification device for classifying an electric input signal may include: an input node to receive the electric input signal; a reference circuit configured to generate an electric reference signal; a memristive structure configured to cause an electric response signal as a function of both the electric input signal received at the input node and the electric reference signal generated by the reference circuit; an electric analysis circuit coupled to the memristive structure to determine one or more characteristics of the electric response signal caused by the memristive structure; and one or more processors configured to determine a class associated with the electric input signal based on the one or more characteristics of the electric response signal determined by the electric analysis circuit.

The invention discloses a VR psychological intervention method fusing emotion release and wake-up, and relates to the technical field of VR psychological intervention, comprising the following steps: after a user enters a virtual reality psychological intervention environment, a system synchronously collects physiological signals, voice intonation and facial micro-expression information of the user to obtain multi-modal data; the physiological signals comprise galvanic skin response, heart rate and heart rate variability; based on the multi-modal data, the emotional states of the user are classified, emotional state labels are generated, and the emotional state labels comprise three types of high-negative emotions, low-negative emotions and positive emotions; when the emotional state label indicates that the user is in a high-negative emotional state, an emotional release stage is triggered, the user captures a dark energy ball appearing in a virtual space through gesture interaction and executes a throwing-out action, and the energy ball moves along with a gesture track of the user and explodes and dissipates after the release action of the user is completed.

The present application relates to the technical field of high-voltage discharge plasma, and provides a high-voltage discharge plasma element detection device, which comprises an optical platform, a discharge reaction unit, an electrical diagnosis unit and an optical diagnosis unit; the discharge reaction unit, a fiber displacement stage and an ICCD displacement stage are installed on the optical platform; the discharge reaction unit comprises a sample carrier, a supporting component, a ground electrode and a high-voltage electrode; the sample carrier is arranged on the supporting component, and the center of the sample carrier is provided with a small hole; the ground electrode is installed at the root of the optical platform and is grounded, and the needle tip of the ground electrode faces the center of the sample carrier; the high-voltage electrode is arranged above the small hole of the sample carrier, and a plurality of groups of radiating fins are installed on the high-voltage electrode; the discharge reaction unit is connected in series with a parameter adjustment dark box, and the parameter adjustment dark box is connected with a high-voltage alternating current power supply; and the present application can realize accurate regulation and control of the discharge mode and detection of metal elements in solids.

The application discloses a novel flexible electric response liquid crystal polymer material and a preparation method thereof, and the novel material has the capability of reversible response to an electric field at room temperature. Existing electric response liquid crystal polymer materials often have a high glass transition temperature and need to be in a high-temperature environment to produce response to an electric field. In the application, the novel flexible electric response liquid crystal polymer material is generated by the reaction of a mono-acrylate monomer, a di-acrylate monomer and a chain transfer agent, has a glass transition temperature lower than room temperature, can produce reversible response to an electric field at room temperature, and has wide application prospects. The novel material can be used in many fields such as self-cleaning surfaces and touch displays in the future.

The invention relates to the technical field of membrane separation, and discloses a high-protein milk concentration process based on a membrane filtration technology, the process adopts an electric response membrane grafted with an electric response polymer brush on the surface, and an electric control zymogen modified by genetic engineering is added into milk feed liquid to be treated. The zymogen is modified with an electric field responsive anchoring group and an electric signal activated ferrocene protecting group. In the filtering stage, a first electric field is applied to stretch the polymer brush, so that anti-pollution filtering is realized; and in the cleaning stage, switching to a second electric field to enable the polymer brush to shrink and drive the zymogen to be anchored on the surface of the membrane, and applying an activation pulse to trigger the activity of the zymogen so as to degrade pollutants in situ. On the premise of not interrupting production, not adding chemical cleaning agents and not damaging target product protein, milk concentration is efficiently and continuously carried out, and long-term stable high permeation flux is maintained.

The invention discloses a detection system and method capable of monitoring multiple heavy metal ions online in real time, and relates to the technical field of water quality detection.The method comprises the steps that the temperature of a water sample is measured through a thermoelectric coupler temperature detection method, real-time temperature correction is conducted through a resistance compensation method, and a target water sample with the stable temperature is obtained; the method comprises the following steps: exciting a target water sample with stable temperature by adopting an electrochemical impedance spectroscopy method, and collecting a composite electric response signal by utilizing a capacitance response measurement method; decomposing and denoising the composite electrical response signal by adopting a time-frequency combined wavelet transform method to obtain multiple electrical characteristic data; and learning and reasoning the multiple electrical characteristic data by using a deep convolutional neural network to obtain the types of the heavy metal ions and estimate a concentration quantitative result. According to the method, the detection sensitivity and the resolution capability of weak response ions are improved, so that high-precision recognition and concentration estimation of various heavy metal ions are realized, and the real-time detection requirement in a complex water body environment is effectively supported.

The application discloses an electric response nanofiber composite film and a preparation method and application thereof, and the preparation method comprises the following steps: vacuum drying and grinding a metal organic framework material UiO-66, dissolving the obtained UiO-66 powder in N,N-dimethylformamide, and ultrasonic treatment to make the UiO-66 powder uniformly dispersed; dissolving PVDF powder in the solution, stirring until the PVDF powder is completely dissolved, adding acetone to obtain an electrospinning precursor solution; electrospinning the electrospinning precursor to obtain a PVDF / metal organic framework composite nanofiber film; and then performing drying and annealing treatment to obtain the electric response nanofiber composite film. The composite film has high flexibility, a high specific surface area, excellent piezoelectric response and sound-electric conversion efficiency, and solves the problems of low beta phase content and poor force-electric coupling efficiency of traditional organic piezoelectric materials; the composite film has a wide application prospect in the fields of flexible piezoelectric sensors, sound wave detectors, hydrophones and wearable sound-electric devices.

The invention belongs to the technical field of catalysts, and particularly discloses an electric response type propane dehydrogenation catalyst as well as a preparation method and application thereof. The catalyst contains a titanium-aluminum composite oxide and GaOx doped in the titanium-aluminum composite oxide, wherein x is more than 0 and less than 3 / 2; the molar ratio of titanium to aluminum in the titanium-aluminum composite oxide is 1-91. The preparation method comprises the following steps: 1) preparing a mixed solution containing a Ga source, a Ti source and an Al source, then adding urea, performing crystallization and solid-liquid separation in a high-pressure hydrothermal kettle, and washing and drying the solid to obtain a catalyst precursor; and 2) carrying out roasting and reduction treatment on the catalyst precursor to obtain the catalyst. The catalyst provided by the invention can maintain excellent propylene selectivity while greatly improving the propylene yield, and the propane dehydrogenation conversion rate under an electric field assisted thermocatalysis condition is significantly higher than that of a pure thermocatalysis reaction under the same condition, especially the enhancement effect under a low-temperature condition is more obvious.

The embodiment of the application provides a kind of neutron flux abnormality detection method and device, electronic equipment and storage medium, belong to nuclear power plant safety technical field.The method comprises: screening reference nuclear power reaction unit.Get the first reference counting rate detection module in multiple continuous preset time steps under the core neutron counting rate.Acquire concentration influence factor, original neutron source source intensity and reference neutron source source intensity.According to the first detection sensitivity, the first reference sensitivity, the core neutron counting rate, the concentration influence factor, the original neutron source source intensity and the reference neutron source source intensity, the predicted neutron flux of the core basket is obtained by calculation.The first loading of pressurized water reactor nuclear power reaction unit is carried out, and the target neutron counting rate is obtained.According to the target neutron counting rate and the first detection sensitivity, the target neutron flux is obtained by calculation, and the abnormality is detected based on the target neutron flux and the predicted neutron flux.The embodiment of the application can improve the efficiency of neutron flux abnormality detection.

The application discloses a Td-WTe2 / 1T'-MoTe2 heterojunction device for room-temperature photoelectric detection and a preparation method and application thereof. The heterojunction device is composed of Td-WTe2 and 1T'-MoTe2, and the two are connected through interlayer van der Waals force in an overlapping area. When light irradiates the overlapping area or a neighboring area thereof, a photo-thermal-electric response can be generated due to the difference in Seebeck coefficients of the two. The application provides a device scheme for realizing room-temperature photoelectric detection by utilizing the difference in thermoelectric properties of two specific materials without relying on a traditional semiconductor depletion region or an asymmetric light irradiation condition, and has the advantages of room-temperature operation, self-power supply, near-infrared response and fast response, and has important value in the field of photoelectric detection.

The invention discloses a method for rapidly detecting inorganic arsenic in aquatic animals. The method comprises the following steps: pre-treating an aquatic animal sample to be detected to obtain a sample solution to be detected; the method comprises the following steps: taking a silk-screen printing electrode as a working electrode, electrifying a to-be-detected sample solution by adopting anodic stripping voltammetry to collect an electrical response parameter in the electrifying process, and further obtaining the content of inorganic arsenic according to the electrical response parameter. According to the method, the screen-printed electrode is adopted to replace a traditional glassy carbon electrode or gold electrode, polishing is not needed, operation is easy, throwing is achieved when the electrode is used, the price is low, batch production is easy, and the performance is stable, and the electrochemical anodic stripping voltammetry is applied to detection of inorganic arsenic in aquatic animals for the first time; the shape of the working electrode and an ink carbon-based material in the working electrode are optimized, and the quantitation limit of the finally measured sample is as low as 0.1 mg / kg; the method is simple, rapid and efficient, and is suitable for large-scale production and application on a base layer.

The application provides an electric response material driven bionic obstacle crossing robot, which comprises a first driver, a second driver, a multi-section elastic framework, a foot support, a foot bottom buffer layer structure and a polymer fastener; the multi-section elastic framework comprises a front section framework and a rear section framework; the first driver is installed on the front section framework, the rear section framework is provided with a hollow structure; the second driver is installed on the hollow structure; the foot support is installed on the rear section framework, and the foot bottom buffer layer structure is installed on the foot support. The first driver is a shape memory alloy spring, two groups of the shape memory alloy springs are symmetrically distributed on the upper and lower sides of the front section framework, the interval of the fixed positions of the two ends of the spring is greater than the length of the spring in a natural state, and the two ends of each spring are connected to the positive and negative poles of an external power supply through external wires. The application adopts the structure that the front section framework cooperates with the shape memory alloy spring, can realize controllable energy storage and release, and realizes the jumping obstacle crossing movement of the robot.

A method for execution by a computing entity includes interpreting an electric response from a set of electric field sensors to produce a piston velocity and a piston position of a piston associated with a head unit device. The head unit device includes a chamber filled with a shear thickening fluid (STF) that includes a multitude of piezoelectric nanoparticles. The method further includes determining a shear force based on the piston velocity and the piston position. The method further includes determining a desired response for the STF based on the shear force, the piston velocity, and the piston position. The method further includes generating an electric activation based on the desired response for the STF and outputting the electric activation to a set of electric field emitters positioned proximal to the chamber.

The present application relates to the technical field of plant electric response, in particular to a method for characterizing the electric dual tropism of plant roots and application thereof, two metal plates are inserted into two sides of a cuboid water tank in parallel, the two metal plates are connected with the positive and negative poles of a direct current power supply respectively, a culture medium is added into the water tank to form a closed loop, seeds are placed on a sponge and covered with double-layer gauze, then the sponge is put into the culture medium in the water tank to culture the seeds; the voltage intensity applied to the two sides of the culture medium and the current intensity flowing through the culture medium are adjusted, so that the roots grown from the seeds grow towards the cathode and anode directions, thereby the electric dual tropism of the plant roots is characterized. The method is simple, easy to operate and convenient to observe, can clearly characterize the electric dual tropism of the plant roots, and can reflect the electric response conditions and electric response characteristics when the electric dual tropism occurs, and has a broad application prospect.

The invention relates to the field of wastewater treatment, and discloses an electroplating wastewater treatment system which comprises a physical pretreatment module, a dynamic pulse acoustoelectric reaction module, a resource recovery and electrode regeneration module and a central process control module, wherein in the dynamic pulse acoustoelectric reaction module, through the synergistic effect of a sound field constructed by an ultrasonic transducer and a pulse electric field constructed by a programmable pulse power supply, stable metal complexes in the wastewater are broken through acoustochemistry, and released metal ions are reduced and deposited on a three-dimensional porous working electrode through electrochemistry. The central process control module is used for periodically switching between a main reaction stage and an electrode activation stage, in the electrode activation stage, the polarity of the electrode is reversed, the working electrode serves as an anode, organic and inorganic passivation layers accumulated on the surface of the working electrode are removed in situ, the electrochemical activity of the working electrode is recovered, high-purity metal is recycled in an electrolytic stripping mode, and the high-purity metal is recycled. And regeneration and reuse of the electrode substrate are realized.

The invention relates to a bimodal trigger intelligent diaphragm, a battery, a preparation method and application. The bimodal trigger intelligent diaphragm comprises a base film, and a thermal response layer and an electric response layer which are respectively positioned on two sides of the base film, the thermal response layer is prepared from the following raw materials in percentage by weight: 30 to 50 percent of capsule, 10 to 15 percent of PVDF-HFP and the balance of solvent; the capsule comprises a Wood alloy and a capsule wall wrapping the Wood alloy, the material of the capsule wall is polymethyl methacrylate, and the composition of the Wood alloy is Bi < 50 > Pb < 2. 7 > Sn < 1. 3 > Se < 0.5 > Cd10. The electric response layer is prepared from the following raw material components: 0.2 to 0.5 M of N-(4-sulfonyl butyryl) aniline, 0.6 to 1.5 M of sulfuric acid and 0.05 to 0.2 M of benzene sulfonate; according to the invention, dual protection is realized through thermal response and electrical response, the sensitivity, stability and response speed of thermal protection are effectively improved, and the protection effect is improved.

An electrified reactor includes a reactor coil that is electrically connected to an electric power source, a first insulating layer that is electrically connected to the reactor coil, and a second insulating layer that is thermally connected to the first insulating layer. The first insulating layer is an electric insulating layer, and the second insulating layer is a thermal insulating layer.

The invention discloses a conductive graphene composite nanofiltration membrane with electric response performance and a preparation method thereof, and belongs to the technical field of graphene nanofiltration membrane materials, and the preparation method comprises the following steps: 1) dispersing reduced graphene oxide nanosheet dispersion liquid and glycine modified graphene oxide nanosheet dispersion liquid in a solvent to form mixed dispersion liquid; 2) loading the mixed dispersion liquid on the surface of a polymer support membrane through vacuum filtration to form a nanofiltration separation layer; and 3) drying the nanofiltration separation layer to obtain the conductive graphene composite nanofiltration membrane with electric response performance. And 4) applying an external voltage in the process of testing the electrical response separation performance of the conductive graphene composite nanofiltration membrane. According to the prepared conductive graphene composite nanofiltration membrane, the electrostatic repulsion effect of the conductive graphene composite nanofiltration membrane on SO4 < 2-> is enhanced, and the transmembrane energy barrier of Na < + > is reduced to promote faster collaborative transmission of Cl <->, so that good Cl / SO4 < 2-> separation performance is realized.