14 results about "Electrode interface" patented technology

This utility model discloses a transcranial electrical stimulation (TCS) device for children's language training, comprising a housing and a control component disposed within the housing. A stimulation electrode interface is disposed on the right side of the housing, fixedly connected to the housing and electrically connected to the control component. A mode selection button, electrically connected to the control component, is provided on the housing to switch between different TCS modes. The TCS device for children's language training provided in this application allows switching between different TCS modes via the mode selection button, enabling selection of different TCS modes to meet the safety and precise control requirements of children's language training.

This invention belongs to the field of electrochemical deoxygenation technology, specifically relating to an electrochemical oxygen atmosphere control system and method. The system, from bottom to top, includes a porous bottom cover, a first hydrophobic and breathable membrane, an oxygen-consuming cathode, a liquid-conducting diaphragm, an oxygen-evolving anode, a second hydrophobic and breathable membrane, and a porous top cover. Each component layer forms a zero-gap contact through the clamping force of the outer shell, enabling the device to achieve an ultra-thin thickness. The liquid-conducting diaphragm has a transverse liquid-conducting groove extending to the external electrolyte chamber, utilizing capillary action to achieve rapid electrolyte replenishment and eliminate local hot spots. Through the coupling design between the hydrophobic and breathable membrane and the electrode interface, oxygen generated by the oxygen-evolving anode directly penetrates and overflows in the form of gas molecules, effectively suppressing bubble formation and accumulation in traditional electrolysis processes, and significantly reducing the ohmic resistance of the interface and operating energy consumption. This invention features an extremely thin structure, high reaction efficiency, and no bubble interference, making it suitable for precise oxygen concentration control in spaces such as refrigerators and precision storage environments.

This application relates to a neuromodulation device and an assembly for neuromodulation. The neuromodulation device includes a sealed housing assembly and electrodes. The sealed housing assembly includes an energy storage element, an output modulation element, and an electrode interface element. One end of the electrode is physically, electrically, and signalally connected to the sealed housing assembly via the electrode interface element. The other end of the electrode is arc-shaped and integrates one or more heating elements and a temperature sensing element; this other end is used for positioning near a target nerve. The neuromodulation assembly includes the neuromodulation device and an excitation device. The excitation device is used for energy emission and includes a control element, a waveform modulation element, and a emission element. The excitation device is operably connected to the neuromodulation device via the emission element in a wired or wireless manner.

The application discloses a method and device for hydrogen production by electrolysis of water. The anode and cathode electrode materials are clamped in the anode clamp and cathode clamp respectively, and the electrolyte is injected to immerse the electrode clamp. After adjusting the distance between the two electrodes to the preset reference distance, the electrolysis voltage is applied to start the reaction. The high-frequency oscillation mechanism drives the two electrodes to do reciprocating oscillation with the reference distance as the center. The oscillation frequency matches the inherent characteristic frequency of the electrode surface flow boundary layer. The fast-shrinking slow-expanding asymmetric waveform is adopted, and the amplitude does not change the macroscopic working distance between the two electrodes. The transient electrochemical signals are synchronously collected to correct the oscillation frequency, and the hydrogen and oxygen gases generated in the reaction are collected. The application can strengthen the ion mass transfer of the electrode interface, realize the early directional separation of bubbles, effectively improve the electrolysis efficiency, and adapt to multiple types of electrolyte and variable load working conditions.

The application discloses an artificial solid electrolyte interface layer and a preparation method thereof, and a preparation method of a composite piezoelectric film, and comprises the following steps: uniformly mixing an organic copolymer, an inorganic piezoelectric phase and a solvent to obtain a composite precursor solution, uniformly coating the composite precursor solution on an inert substrate, drying after coating is completed, and obtaining a composite film on the inert substrate; applying an electric field to the composite film, simultaneously, performing polarization treatment on the composite film, cooling to room temperature, and obtaining a composite piezoelectric film on the inert substrate. By constructing the composite piezoelectric film with residual polarization orientation on the surface of the negative electrode, the 'field-force coupling' response of the composite piezoelectric film under the action of the electric field and the stress is utilized, the dynamic negative feedback regulation of the lithium metal negative electrode interface electric field and the ion distribution is realized, and thus the dendrite growth is effectively inhibited, the deposition uniformity is improved, and the cycle stability is improved.

An electrode interface for driving an electrode of a quantum circuit is described. The electrode is selectively connectable to at least one signal line. Each signal line is connected to an intermediate node by a respective first switch. The intermediate node is connected to the electrode by a second switch. A buffer capacitor couples the intermediate node to a ground or reference voltage. To disconnect a signal line from the electrode, the second switch is opened, to effectively decouple the first switch(es) from the intermediate node, before the first switch connected to the relevant signal line is opened.

The application discloses a lead ion detection method based on photoelectrochemistry, comprising the following steps: providing a working electrode, the surface of which is decorated with a photoelectric active material layer, and a DNAzyme recognition system is constructed based on the photoelectric active material layer; the DNAzyme recognition system comprises a substrate chain and an enzyme chain-signal amplification nanocomposite material; the sample to be detected is contacted with the working electrode, in the presence of lead ions, the specific cleavage activity of the DNAzyme sequence is activated, the substrate chain is cut, the enzyme chain-signal amplification nanocomposite material is released from the electrode surface or the spatial conformation is changed, so that the photoelectric signal of the electrode interface is caused; based on the correlation between the photoelectric signal and the lead ion concentration, the lead ion in the sample is quantitatively or qualitatively analyzed. The application realizes high-sensitivity, high-selectivity and low-cost photoelectrochemical detection of trace lead ions, and is simple to operate, and can realize on-site rapid screening.

This application relates to the field of bioelectrical signal acquisition and brain-computer interface technology, and discloses an electroencephalogram (EEG) acquisition device. It includes a device body, ear clip components, a brain oxygen acquisition module, and a main control module. The EEG acquisition module, ear clip components, and brain oxygen acquisition module are all electrically connected to the main control module. The device body is a flexible, adaptable body, using flexible silicone as a covering layer. The ear clip components are a first ear clip and a second ear clip, symmetrically arranged. The first ear clip serves as the EEG acquisition reference negative electrode, and the second ear clip serves as the environmental interference acquisition end. The second ear clip is electrically connected to the differential amplification module within the main control module. The device body has an embedded magnetic female electrode interface, which serves as a dry electrode for acquiring EEG signals, and / or magnetically connects to external electrode pads for acquiring EEG signals. The device body has multiple preset forehead acquisition points, and the main control module integrates a point configuration switching module to wake up or deactivate corresponding acquisition points.

The application discloses a kind of based on transient finite element analysis zinc electrodeposition process multi-physical field coupling simulation and process parameter optimization method, belong to electrodeposition process modeling analysis and parameter control technical field, specific steps include: in simulation platform, establish zinc electrodeposition three-dimensional transient model, coupling ion mass transfer and electrode interface reaction process;Set the structural parameters of electrodeposition system, process parameters and boundary conditions;The model is meshed and calculated using transient solution method, ion concentration field distribution and deposition thickness evolution results under different working conditions are obtained;According to the calculation results, the electrolyte flow rate, anode-cathode spacing, acid-zinc ratio and current density are optimized and controlled.The application can realize the coordinated control of main reaction and side reaction in zinc electrodeposition process, improve the interface mass transfer state, improve the compactness, uniformity and process stability of the deposition layer, and is used for zinc electrodeposition process optimization and related electrochemical deposition process design and control.

The portable bioelectric impedance imaging system and method based on AD5940 generates an alternating excitation signal by a signal conditioning and acquisition device, and under the unified control of a control and communication device, the measured object is injected after being selected by an electrode interface device; the measured object forms a current distribution field under the excitation, and generates a boundary response signal between the remaining electrodes; the response signal is returned to the signal conditioning and acquisition device through the electrode interface device, and after analog conditioning, analog-digital conversion and frequency domain operation, boundary electrical measurement data is obtained; the control and communication device sends the boundary electrical measurement data to an external terminal for processing and obtains an image. Based on the above overall structure, the multi-electrode time division multiplexing measurement device is designed uniformly at the system level, while ensuring the integration and portability of the device, the boundary excitation, the acquisition link and the imaging processing link are integrated and cooperated, so that the portable bioelectric impedance imaging system based on AD5940 has the advantages of smaller size and convenient carrying application.

This invention discloses a method and system for constructing pore-scale models to study cation effects, the electric double layer, and local reaction environments. Addressing the problems of existing methods for CO2 electroreduction in acidic media, which rely on passive local pH regulation with high current density, suffer from low energy efficiency, and have unclear cation interaction mechanisms, this invention improves the Poisson–Nernst–Planck model by coupling the mass transfer and reaction kinetics of the Stern layer, dispersion layer, and diffusion layer. It quantitatively simulates the adsorption behavior of alkali metal cations at the electrode interface and their regulatory effect on the electric field distribution of the electric double layer. Experimental verification shows that this model can accurately predict the inhibitory effect of cations on the hydrogen evolution reaction and the enhancement of CO2 reduction selectivity. In acidic media, it increases the CO2 reduction Faraday efficiency from less than 20% to over 70%, while reducing system energy consumption by 15-30%. This solves the problems of narrow operating window and low CO2 utilization efficiency of traditional methods, providing support for the design and optimization of electrocatalytic systems.

The present application relates to electrode material for measuring blood potassium content, preparation method, working electrode, electrode device and blood potassium content measuring system. Its advantages are that through the chemical performance improvement of the new material of the bottom electrode interface, the selectivity, sensitivity and detection upper limit of the electrochemical sensor (electrode device) in the complex blood environment are significantly improved, so as to meet the accurate monitoring demand of the clinical household blood potassium range; the high molecular weight polymer forms a more dense and stable electrode film, which realizes unprecedented close and firm attachment with the electrode base, fundamentally avoids the swelling or peeling of the electrode film in the detection process, and ensures the long-term stability of the signal; the dense and regular chemical structure interface layer greatly improves the specific selection ability of the electrochemical sensor (electrode device) to potassium ions, and effectively shields the non-specific adsorption interference of common coexisting ions and biological macromolecules such as proteins and lipids in the blood sample.

This invention discloses a rapeseed meal fermentation strain screening system based on electrochemical characteristics, relating to the field of strain screening. The system includes a fermentation reaction vessel, an impedance detection electrode, an electrochemical workstation, and a calculation device. The system maps the raw electrochemical impedance spectroscopy data into a Nyquist plane impedance trajectory curve. Through piecewise circular arc fitting and comparison of variances of multiple batch geometric parameters, batch drift impedance components and strain characteristic impedance components are separated. These components are used to invert phytic acid and tannin concentrations based on the batch drift impedance components. A radially layered cross-sectional geometric model of the electrode interface is constructed and converted into a cascaded equivalent circuit. Batch correction amounts are determined to perform frequency-by-frequency compensation on the strain characteristic impedance components, outputting the strain characteristic impedance spectrum. Feature vectors are extracted from the strain characteristic impedance spectrum, and dimensionality reduction mapping and distance clustering are performed to sort the data, outputting the optimal strain screening result. This provides a highly repeatable quantitative decision-making benchmark for screening rapeseed meal fermentation strains.