81 results about "Electrode location" patented technology

The invention relates to the technical field of intelligent medical assistance, in particular to a skin disease treatment electrode positioning system based on potential distribution. The system comprises a potential gradient severe region identification module, a lesion minimum surrounding region identification module, a similar potential region grouping module, an optimal electrode position prediction module, an electric field distribution calculation module, a sweat gland dense region identification module, an optimal electrode placement point screening module, an enhanced feature generation module and a final electrode position determination module. By fusing multi-source information such as skin surface potential distribution, lesion geometric characteristics, tissue conductivity, historical treatment data and the like, systematic optimization is performed on electrode positioning in skin disease treatment, the effectiveness of electrode stimulation is maximized on the premise of ensuring the treatment safety, and the treatment efficiency is improved. An accurate electrode placement scheme is provided for treatment of different types of skin diseases, and the method is suitable for accurate determination of the electrode placement position in electrical stimulation treatment.

The invention discloses a refuse landfill geomembrane leakage detection method and system, and relates to the technical field of leakage detection.The method comprises the steps that a plurality of electrodes are arranged on the basis of the upper portion and the lower portion of a refuse landfill geomembrane, and a membrane upper electrode array and a membrane lower electrode array are constructed; constructing a detection electric field to obtain multiple groups of induction signal data; setting a reference signal, and identifying an abnormal sensing signal according to an analysis result; and mapping the abnormal sensing signal to the under-membrane electrode array according to abnormal data characteristics for positioning, determining electrode position information, and obtaining a leakage detection result. The technical problems that in the prior art, the positioning precision of the leakage point of the geomembrane of the refuse landfill is low, the leakage scale is difficult to evaluate, and the anti-seepage performance is not monitored in time are solved, and the technical effects that accurate positioning and scale evaluation of the leakage point of the geomembrane of the refuse landfill are achieved, and effective monitoring of the anti-seepage performance of the geomembrane is guaranteed are achieved.

The invention provides an emotion recognition method, device and equipment based on electroencephalogram signals and a medium. The emotion recognition method based on the electroencephalogram signals comprises the steps that original electroencephalogram signals under all electrode positions are obtained; electroencephalogram characteristic data are extracted according to the original electroencephalogram signals; extracting frequency band and spatial features from the electroencephalogram feature data to obtain a space-frequency feature map; a bidirectional Mama network is adopted to extract time sequence characteristics of the space-frequency characteristic pattern in each time period, and a time sequence characteristic sequence is obtained; fusing each time sequence feature in the time sequence feature sequence on a time period dimension to obtain a fused time sequence feature; and recognizing the fusion time sequence features by using a feedforward neural network to obtain an emotion recognition result. According to the emotion recognition method and device based on the electroencephalogram signals, the equipment and the medium, deep feature fusion can be achieved, hidden features related to emotion changes in the electroencephalogram can be fully mined, and the accuracy of emotion recognition is improved.

The present application relates to a kind of silicon carbide power devices of floating junction thickness gradually changes, comprising: N+ silicon carbide substrate layer;N- silicon carbide epitaxial layer is located on N+ silicon carbide substrate layer;A layer P-type silicon carbide floating junction layer is arranged in the N- silicon carbide epitaxial layer in vertical direction, each P-type silicon carbide floating junction layer includes B P-type silicon carbide floating junction structure, P-type silicon carbide floating junction structure is symmetrical along central axis and is the structure of thickness gradually changes;Back electrode is located in the lower surface of N+ silicon carbide substrate layer;Front electrode is located on N- silicon carbide epitaxial layer.The present application makes the thickness of floating junction gradually increase from the center of floating junction to the edge of floating junction, thereby reducing the electric field peak value of corresponding electrode position higher at the center of floating junction when device is in reverse working state, while the epitaxial layer drift region between floating junction is more sufficient, makes the electric field peak value of floating junction interval center and edge position be lifted.

According to an aspect of the present inventive concept there is provided a system for determining an estimate of an anatomy of neural tissue of a subject. The system comprises an electrode arrangement comprising a plurality of electrodes, wherein different electrodes in the plurality of electrodes are configured to be arranged in different electrode locations adjacent the neural tissue, wherein the plurality of electrodes is configured to receive a plurality of stimulation signals, a sensor arrangement configured to generate indications of changes in at least one of a neural activity or a physiological activity in response to the stimulation signals and a processing unit, configured to receive data representing relations between the plurality of stimulation signals and the indications of changes in the neural activity or physiological activity, wherein the processing unit is configured to generate the estimate of the anatomy of the neural tissue of the subject.

A probe card and a method for inspecting a light emitting element are disclosed. In one aspect, the probe card includes a probe substrate, a plurality of piezoelectric elements disposed on one surface of the probe substrate, and a plurality of electrode units disposed on the plurality of piezoelectric elements. Each electrode unit includes a plurality of pin electrodes, and each piezoelectric element of the plurality of piezoelectric elements corresponds one to one with each pin electrode of the plurality of pin electrodes. By applying a voltage to each piezoelectric element, its shape can be deformed to change the Z axis position of the corresponding pin electrode. This allows the probe card to adjust the height of individual pin electrodes for contacting electrodes of light emitting elements on a wafer, enabling accurate electrical inspection even when wafer flatness or electrode positions vary.

The application discloses a manufacturing method of a lightable Micro OLED pilot sheet, and is characterized in that: step 1, a metal layer M1 and an insulating layer P1 are deposited; step 2, metal wiring is manufactured; step 3, an insulating layer P2 is manufactured; step 4, the insulating layer P2 is thinned; step 5, the insulating layer P2 and the insulating layer P1 are thinned until the metal layer M1 is exposed; step 6, an insulating layer P3 is manufactured; step 7, a hole is punched to expose the metal layer M1; step 8, a metal layer M2 and an insulating layer P4 are generated; and step 9, steps 2-7 are repeated to complete pilot sheet bottom layer circuit manufacturing, and the hole positions are respectively corresponding to pixel electrode positions, and a subsequent Anode deposition can smooth the step difference of the via hole position section. The pilot sheet and the manufacturing method thereof introduce an insulating layer filling metal gap scheme, so that the pilot sheet can be manufactured based on panel factory equipment, the cost of the pilot sheet is reduced, different pixel switching is met, and a complete pilot sheet evaluation function is realized.

The application relates to the technical field of semiconductors, and provides a preparation method of a three-dimensional electrode, which comprises the following steps: manufacturing a wafer mask plate, wherein the wafer mask plate is provided with a plurality of first hollow patterns, the shape of each first hollow pattern is matched with the cross-sectional shape of the electrode, and the position of each first hollow pattern is the same as the target position of the electrode on a film-to-be-coated wafer; temporarily bonding the wafer mask plate with the surface of the film-to-be-coated wafer; and evaporating the electrode at the position opposite to the first hollow pattern on the film-to-be-coated wafer. The preparation method of the three-dimensional electrode provided by the application realizes the submicron-level accurate layout of the electrode on the film-to-be-coated wafer by manufacturing the wafer mask plate and temporarily bonding the wafer mask plate with the surface of the film-to-be-coated wafer, so that there is no gap between the wafer mask plate and the film-to-be-coated wafer and the wafer mask plate cannot move relative to the film-to-be-coated wafer, the gap between the evaporated electrode position and the target position is reduced, and the accuracy of preparing the three-dimensional electrode on the film-to-be-coated wafer is improved.

This invention relates to the field of lead-zinc ore detection equipment, and more particularly to an induced polarization (IP) sounding device for detecting lead-zinc ore. The technical solution includes: a base composed of a vertical base plate and a horizontal base plate that can be rotated and folded together; a clamping and insertion mechanism for clamping electrodes and inserting them into the ground; an electrode spacing adjustment mechanism connected to the vertical base plate and the clamping and insertion mechanism for adjusting the distance between the clamping and insertion mechanisms; and a graduated scale connected to the vertical base plate for indicating the displacement values ​​of the clamping and insertion mechanisms. This invention utilizes the clamping and insertion mechanism to clamp and fix electrodes and insert them into the ground, and the electrode spacing adjustment mechanism to translate the positions of each clamping and insertion mechanism to precisely adjust the distance between the electrodes. The graduated scale allows for visual observation of the specific positions. This precise adjustment of the electrode positions not only improves the accuracy of the detection data but also increases the detection efficiency.

This invention discloses a method for noise reduction and electrode placement optimization in a single-arm electrocardiogram (ECG) system, comprising the following steps: Step S1: Acquiring electromyographic (EMG) signals at multiple preset electrode positions on the upper arm of the subject, and obtaining EMG signal intensity data and EMG signal stability data for each electrode position; Step S2: Determining one or more electrode positions with lower EMG signal intensity and better signal stability from the multiple preset electrode positions, and using the one or more electrode positions as the initial electrode arrangement; Step S3: Acquiring the subject's motion state data in real time while the subject is in motion; Step S4: Dynamically selecting electrode channels with fewer EMG signals in the current motion state from the initial electrode arrangement for ECG signal acquisition. This invention can reduce the introduction of EMG signals at the source, ensuring high-quality and stable ECG signals can be obtained in different individuals and under various motion states.

The application discloses a kind of micro electrochemical in-situ testing methods, first, the clamp of in-situ tensile device is fixed to the both ends of sample, and in-situ tensile device loaded with sample is placed below micro electrochemical equipment;Second, droplet is formed on the upper surface of sample by dropping experimental solution, the position of two electrodes of micro electrochemical equipment is adjusted, so that two electrodes are immersed in droplet, form current loop, according to the conversion mapping relationship of preset torque and tension, the torque of screw rod connected to tensile clamp is applied corresponding tension torque by using torque wrench and kept, the sample data in holding time is recorded by micro electrochemical equipment, the tension of sample is gradually increased, and the potential change data of the same micro area of sample under different tension is obtained, the torque and tension are overall calibrated by pre-experiment in the application, calibration equation is formed, and the precision is significantly improved compared with traditional displacement loading mode, and the stress corrosion failure behavior of material micro area can be accurately applied in-situ research.

This utility model discloses a fixing cap, relating to the field of brain electrode fixing technology, and aims to solve the technical problem that the use of tape and mesh caps to fix disc electrodes in the prior art may cause the disc electrodes to change position, thereby affecting the accuracy of data acquisition. It includes a strap worn over the patient's head, with several first straps having several positioning clamping devices on them. Each positioning clamping device corresponds one-to-one with a brain electrode position on the head. Each positioning clamping device includes an electrode hole on the first strap and a side hole communicating with the electrode hole. An elastic clamping device is provided inside the electrode hole. The strap is connected to an elastic second strap, and the first and second straps form a mesh structure. The strap also has a first fixing device for adhering the entire first strap to the patient's scalp. This utility model, using a strap, first straps, second straps, electrode holes, etc., ensures that the electrodes do not move during the entire electrode connection process, making the data acquired by this device more accurate.

The application provides a kind of early warning and positioning method and system for lithium battery internal short circuit fault based on deep learning;Early warning and positioning method includes: step S10, multidimensional data semantic acquisition and working condition adaptive pretreatment;Step S20, cross-scale spatiotemporal feature collaborative extraction and alignment;Step S30, dynamic threshold self-adaptive internal short circuit early warning and feedback optimization;Step S40, topological perception fault accurate positioning and verification;Step S50, embedded collaborative optimization and self-diagnosis deployment: the application can find the early weak signal of internal short circuit fault in time, improve the efficiency and timeliness of battery safety monitoring;Improve the sensitivity of early warning;Enhance the robustness in high temperature, low temperature, fast charging and discharging environment;Can accurately identify the battery monomer and electrode position where fault occurs.

The embodiment of the invention provides a preparation method of a display panel, the display panel and electronic equipment, and relates to the technical field of display. The method comprises the following steps: firstly, covering an insulating layer on an electric connection structure, then sequentially manufacturing a first electrode, patterning an isolation structure material layer and patterning a pixel defining material layer, and finally, removing the insulating layer at a second opening to expose the electric connection structure. Compared with the prior art in which at least part of the electric connection structure is exposed when the insulating layer is manufactured, the method can prevent metal ions dissolved in an etching solution from forming conductive particles after obtaining electrons at the position of the electric connection structure when the first electrode is manufactured; therefore, the conductive particles are prevented from being transferred to the position of the first electrode due to liquid medicine cleaning in the follow-up isolation structure material layer patterning and pixel defining material layer patterning process, dark spot defects caused by electrode short circuit in a light-emitting device are avoided, and the display effect and the process yield of the display panel can be improved.

A computer-implemented method provides real-time visual feedback of intraluminal catheter engagement within a luminal organ of a patient. A catheter with electrodes on a distal end assembly is positioned in the organ, and a three-dimensional (3D) model of the internal surface is generated and rendered as a 3D anatomical map. For each electrode, a proximity value indicative of distance to a tissue wall is determined based at least on measured impedance and translated into a graphical attribute value. A continuous proximity visualization feature is formed by sequencing the graphical attributes according to electrode positions, representing proximity variations. The feature is projected onto the 3D anatomical map, creating an integrated graphical representation displayed on a computer display. The visualization is dynamically updated in response to impedance changes, providing real-time feedback on catheter contact with the tissue wall.

According to the IV test tool disclosed by the invention, the penetrating probe guide groove is formed in the sample placement table, so that a probe device can penetrate through the probe guide groove from the back side direction of a battery piece to abut against the back side of the battery piece, and then the position of an electrode on the back side of the battery piece is observed through the probe guide groove; and meanwhile, by adjusting the position of the probe sliding block relative to the sample placing table, the probe can be accurately contacted with the electrode, and the battery piece is fixed by the sample placing table after the probe is contacted in place, so that an IV test can be carried out, the accuracy of test data and the flexible applicability of testing various back side electrode type battery pieces are ensured, and scientific research requirements are met.

Systems are provided for synthesizing leads of an electrocardiogram (ECG) based on a subject ECG collected from a subject and converting a nonstandard ECG based on a nonstandard placement of electrodes to a standard ECG with a standard placement of electrodes. The described systems may generate simulated ECGs based on simulations of electrical activity of hearts having different heart configurations. From each simulation, simulated ECGs are generated assuming a specification of electrode position(s) for each lead of an ECG. The systems identify a simulated ECG that is similar to the subject ECG. Based on the simulation from which that simulated ECG was generated, the systems identify a synthesized ECG or converted ECG.

The utility model belongs to the technical field of electric arc protection test equipment, and provides an electrode fixing assembly for an electric arc protection face screen test device, which comprises a pipe main body provided with an insertion through hole matched with an electrode, the insertion through hole and the pipe main body are coaxially arranged, and a flange part is arranged at the top of the pipe main body. The bottom of the pipe body is provided with a notch communicated with the inserting and embedding through hole, side plate arms and a pressing handle, the side plate arms and the pressing handle are located at the notch, the two side plate arms are symmetrically arranged on the two sides of the axis of the pipe body in parallel, and the pressing handle is rotatably arranged between the two side plate arms. And the electrode inserted in the inserting and embedding through hole is pressed or released by rotating the pressing handle. The electrode fixing assembly for the arc protection face screen test device is simple in structure and convenient to use, reduces the replacement difficulty of the electrode in the arc protection test process, and improves the convenience of electrode position adjustment and fixing operation, thereby improving the test efficiency.

The utility model relates to the technical field of photovoltaic cells, and discloses a double-glass assembly of a back contact cell, which comprises a cell layer, and a front adhesive film and front glass are sequentially arranged on the front surface of the cell layer; a shielding adhesive film, a conductive layer, a back adhesive film and back glass are sequentially arranged on the back of the battery piece; the battery piece layer comprises a plurality of battery pieces arranged according to a designed circuit; the shielding adhesive film is provided with a plurality of holes, and the positions of the holes correspond to the positions of the electrodes on the battery piece. The conductive layer passes through the opening and is connected with the electrode. According to the utility model, the processes of integral typesetting, isolation shielding, welding and the like are adopted, the precision required for equipment is lower, the process yield can be improved, and the manufacturing cost can be reduced; an integrated adhesive film laying process is adopted, and compared with a shielding method adopted between strings in the prior art, the laying process is simpler, and the cost is lower; meanwhile, the shielding adhesive film is integrally laid, the color is more uniform, shielding chromatic aberration does not exist, the appearance is more attractive, and the shielding adhesive film is particularly suitable for scenes with high appearance requirements.

The present invention relates to methods for marking positions for or for positioning of six ECG chest electrodes based on a subject's body height, which allows a reproducible placement of the electrodes in serial independent ECG measurements. The present invention further relates to a device for placement of ECG electrodes which implements said method, and methods and uses applying said device. Hence, the present invention provides an accurate and reproducible, easy to use and low-cost method and device for ECG chest electrode positioning, especially in serial examinations and in obese subjects by minimizing the mistakes in ECG chest electrode placement depending on the subjective and inaccurate defining of anatomic remarks for electrode positions.

The application discloses a thin-film lithium niobate device and a manufacturing method thereof. The thin-film lithium niobate device comprises, from bottom to top, a substrate, a buffer layer, a lithium niobate layer, an insulation layer and a hot electrode. The lithium niobate layer is a thin-film lithium niobate. The lithium niobate layer comprises a hot phase shift region corresponding to the hot electrode and lithium niobate waveguides located on both sides of the hot phase shift region along a first direction. The first direction is the direction of light conduction. A dielectric waveguide is arranged on the lithium niobate layer. The dielectric waveguide corresponds to the position of the hot electrode and is located between the lithium niobate layer and the hot electrode. The lithium niobate waveguide and the dielectric waveguide jointly constitute an optical waveguide. Compared with the prior art, the application has the advantages that by forming the dielectric waveguide in the hot phase shift region of the hot electrode, the change of the thermal-optical bias phase caused by the Z interface generated by the etching of the lithium niobate waveguide can be avoided, thereby providing a thermal-optical bias structure for eliminating the thermal-electric effect charge accumulation and avoiding the drift of the thermal-optical bias operating point.

The invention relates to the technical field of welding machines, in particular to a three-electrode welding machine facilitating electrode replacement. Comprising a welding machine shell, a windproof cover, a lower electrode assembly, a V-shaped groove seat, a fiber carrying table, a light source seat, a pressing plate, a contact switch, an upper electrode assembly, a rotating shaft, a bolt seat, a conducting strip, an electrode bar, a pressing plate, a limiting column, a convex pressing plate, a jacking column, a base, an electrode assembly, a sliding rod, a worm gear, a worm, a seat body, a pressing cover, a conductive pressing sheet, a V-shaped electrode placing groove and a conductive pressing sheet groove. The two electrode bars are located on the same plane, the angle between the two electrode bars is 120 degrees, the other electrode bar is placed on the windproof cover, when the windproof cover is closed, discharging is conducted among the three electrode bars, the positions of three electrodes of a traditional three-electrode welding machine are changed, equal-angle and uniform discharging of the three electrodes is achieved, and after a single electrode is damaged, the three electrodes can be replaced by the damaged electrode. And the electrode needing to be replaced can be replaced without disassembling other electrodes.

This computer system provides real-time, continuous graphical proximity feedback based on changes in electrical impedance sensed by the electrodes of a catheter. [Solution] The computer implementation method provides real-time visual feedback of intraluminal catheter engagement within a patient's luminal organ. A catheter with electrodes on its distal end assembly is positioned within the organ, a 3D model of its internal surface is generated, and it is rendered as a 3D anatomical map. For each electrode, a proximity value indicating the distance to the tissue wall is determined based on at least measured impedance and converted into a graphical attribute value. Continuous proximity visualization features are formed by ordering graphical attributes according to electrode positions representing variations in proximity. The features are projected onto the 3D anatomical map, creating an integrated graphical representation displayed on a computer display.

The present invention provides a probe and an electrical connection device that allow for easy fixing of the probe to the electrical connection device while aligning it with the electrode position of the object being inspected. [Solution] The probe 10 has a columnar shape in which a main body portion 11 and a base portion 12 are connected in the axial direction, and a flange 100 protruding from the side surface of the base portion 12 is formed at a position spaced apart from the end face of the base portion 12 in the direction toward the main body portion 11. The flange 100 includes a tapered region in which the portion that protrudes axially toward the end face of the base portion 12 gradually becomes lower.

This invention provides a method for measuring the position of an electrode in a submerged arc furnace, relating to the field of measurement technology. The method includes: S1, installing a weighing device and a position detection device; S2, installing the electrode onto a holder and obtaining its initial weight using the weighing device; S3, lowering the electrode to its lowest position within the furnace chamber using a high-pressure cylinder, obtaining initial position information; S4, during production, the weighing device and position detection device continuously monitor the real-time weight of the holder and the real-time position information of the electrode. If the real-time weight remains unchanged compared to the initial weight, the electrode position can be determined based on the initial and real-time position information. If the real-time weight changes compared to the initial weight, the electrode position needs to be determined by combining the initial weight, the real-time weight, the initial position information, and the real-time position information. This invention can accurately determine the electrode's embedment depth and end position within the furnace, directly influencing the furnace's thermal field distribution and energy utilization efficiency calculations.

The invention discloses an electrode position optimization method for magnetic nanoparticle concentration magneto-acoustic-electric imaging, which comprises the following steps of: presetting a plurality of groups of electrode number candidate values at the boundary of a biological tissue, and evaluating reconstructed image results under different electrode numbers to determine the optimal electrode number; taking the center position of the electrode as an optimization variable, and constructing an electrode position optimization index based on a sensitivity matrix; a deep learning model based on a deep neural network is constructed, and the model takes the electrode position optimization index as input and takes the electrode position parameter as output; and training the deep learning model, inputting an electrode position optimization index target value to the model after training is completed, and outputting a corresponding electrode position coordinate. According to the method, the precision and stability of the reconstructed image can be improved, the repeated simulation and trial-and-error cost is reduced, and the electrode optimization efficiency is improved.

A display device includes a display panel, an input sensor, and a sensor controller. The input sensor includes transmission electrodes, reception electrodes, transmission wires electrically connecting the transmission electrodes to the sensor controller, and reception wires electrically connecting the reception electrodes to the sensor controller. The sensor controller provides transmission signals having different frequencies according to lengths of the transmission wires to the transmission electrodes, respectively. A frequency of each of the transmission signals does not overlap with a frequency component of display noise generated at a position of the display panel corresponding to each of the transmission electrodes, respectively.

This invention discloses a method, apparatus, electronic device, and storage medium for modeling forward EEG problems. The method includes: segmenting brain tissue structures based on brain structural images; dividing the head domain into a global mesh based on the segmented brain tissue structures; creating a skin-like electrode template based on the electrode line distribution of skin-like electrodes; locally refining the mesh based on the center position, shape, and electrode line cross-sectional diameter of the skin-like electrodes to obtain a head model; obtaining a skin-like electrode model on the head model with electrode locations based on the skin-like electrode template; obtaining a corresponding source model based on mesh division of the cerebral cortex surface; and constructing a personalized EEG forward EEG model using the finite element method based on the head model, source model, and skin-like electrode model. This invention addresses the problem of complex electric field distribution in the scalp region covered by the electrodes due to the complex fractal serpentine mesh structure of skin-like electrodes, thus improving the modeling accuracy of forward EEG problems.

The invention discloses a simulation test method and simulation test equipment for a semiconductor device, and the method comprises the steps: carrying out the three-dimensional modeling based on the layout of the semiconductor device, and obtaining a three-dimensional model; based on the three-dimensional model, carrying out two-dimensional modeling along a first section direction of the three-dimensional source region to obtain a first two-dimensional model; based on the three-dimensional model, carrying out two-dimensional modeling along a second section direction of the three-dimensional body region to obtain a second two-dimensional model; based on the two-dimensional source region in the first two-dimensional model and the two-dimensional body region in the second two-dimensional model, determining a body electrode position, the body electrode position being located in the two-dimensional source region and / or the bottom boundary of the two-dimensional source region; according to the position of the body electrode, defining the body electrode in the first two-dimensional model to form a third two-dimensional model; and performing a two-dimensional simulation test on the third two-dimensional model. According to the invention, simulation resource saving and simulation accuracy can be considered.

The present disclosed subject matter provides a return electrode, such as a body surface electrode, which includes an accelerometer, for detecting movement of the body at and proximate to the location of the return electrode. The body movement results from pulses from an Irreversible Electroporation (IRE) pulse generator which are delivered to the return electrode, by a pulse delivery electrode. The data associated with the body movement at each location on the body of the return electrode, is used to determine suitable, and in some cases optimal, locations for return electrodes for IRE procedures.