622 results about "Grounding electrodes" patented technology

The invention discloses an interference suppression measurement method for a grounding resistor, and relates to the technical field of interference resistance, and the method comprises the steps: injecting a detection current into a grounding electrode, and synchronously collecting an original voltage signal at two ends of the grounding electrode and a time domain waveform of the detection current; performing time domain segmentation on the original voltage signal, performing linear frequency modulation wavelet transform on the signal in each time period, generating an initial time-frequency matrix, extracting a time-frequency ridge line from the initial time-frequency matrix, identifying interference information, obtaining an interference-removed time-frequency matrix, optimizing the interference-removed time-frequency matrix through robust kernel principal component analysis, and obtaining an interference-removed time-frequency matrix; a synchronous redistribution operator is used for carrying out signal purification, a pure time-frequency matrix is obtained, linear frequency modulation Z transformation is carried out on the pure time-frequency matrix, voltage amplitude and frequency are extracted, an energy centroid method is used for correcting the voltage amplitude and frequency, interference can be effectively restrained, and the grounding resistance measurement precision is remarkably improved.

The invention provides a dielectric barrier discharge reactor with a double-dielectric coating structure, which belongs to the technical field of plasma discharge and dielectric engineering and comprises a DBD (dielectric barrier discharge) power supply, a gas supply and flow control module and a coaxial DBD reactor body. The body is of a coaxial hierarchical structure, a coaxial high-voltage electrode is arranged on the inner side of a hollow quartz tube, a first dielectric layer and a second dielectric layer are attached to and wrap the outer side of the hollow quartz tube to form a radial dielectric constant gradient, a grounding electrode wraps the second dielectric layer, and the two axial ends of the grounding electrode are sleeved with hoops to be clamped and fixed. Two ends of the quartz tube are hermetically connected with PTFE joints with air inlets and air outlets; the DBD power source is electrically connected with the high-voltage electrode through a high-voltage wire, and the gas supply and flow control module is communicated with the PTFE connector through a pipeline. The invention solves the problems of large energy loss and poor discharge stability caused by easy uncontrollable micro-gap between the external electrode and the dielectric tube of the existing dielectric barrier discharge reactor, and is suitable for the scenes of ozone generation, surface modification, plasma catalysis and the like.

The invention relates to the technical field of power transmission line safety monitoring, discloses a power transmission line safety assessment method based on grounding electrode current, and aims to solve the problem of low assessment reliability caused by the fact that the prior art is susceptible to far-field interference and environmental factors, and the method comprises the following steps: synchronously collecting instantaneous current and potential signals of a target and a reference monitoring position; calculating respective original impedance spectrums; performing spatial difference on the target original impedance spectrum and the average reference impedance spectrum of the reference position to obtain a differential impedance spectrum to suppress common mode influence; carrying out time difference on the differential impedance spectrum and a dynamic health baseline spectrum based on real-time environmental parameter prediction to obtain a diagnosis residual spectrum so as to remove environmental changes; and finally, performing safety evaluation and fault diagnosis based on the diagnosis residual spectrum. According to the method, local fault features can be accurately extracted through space-time dual difference, the accuracy and anti-interference capability of evaluation are improved, and quantitative evaluation and graded early warning of health states and identification of specific fault modes can be realized.

The application provides a Y-shaped thin film lithium niobate electro-optical modulator and a manufacturing method. A lithium niobate layer on an electro-optical modulator chip is etched into a corresponding curved waveguide structure, and two curved waveguide structures are symmetrically arranged on both sides of the Y-shaped waveguide structure, so that the heights of two light paths are consistent. The curved waveguide structure reduces the space size required by the waveguide while ensuring the waveguide length. For the waveguide with the same length, a chip with a smaller length can be used for mounting. The signal electrode and the ground electrode are arranged on both sides of each straight waveguide in the curved waveguide structure, the optical signal in the waveguide is modulated, and the modulation requirement of the electro-optical modulator is realized.

An antenna module includes dielectric substrates, ground electrodes, radiation electrodes, and a feed line. The dielectric substrates are flat. A third dielectric substrate is connected to rear surfaces of the first and second dielectric substrates and is rigid. A first radiation electrode is disposed at the first dielectric substrate closer to a top surface with respect to a first ground electrode. A second radiation electrode is disposed at the second dielectric substrate closer to a top surface with respect to a second ground electrode. A third ground electrode is disposed at a third dielectric substrate to electrically connect the first and second ground electrodes. The feed line is disposed at the third dielectric substrate to transmit a high-frequency signal from the first dielectric substrate to the second dielectric substrate. A normal direction of the first dielectric substrate and a normal direction of the second dielectric substrate differ from each other.

The invention provides a multi-grade waste heat grading recovery device for a poultry processing factory, and solves the technical problems that existing waste heat recovery equipment is mainly designed for single-grade and low-impurity-content waste heat resources and is difficult to adapt to feather drying waste gas with high impurities and exhaust temperature fluctuation of a refrigeration house compressor in a poultry processing scene. The device can be widely applied to the field of waste heat recovery equipment. The system specifically comprises a feather drying waste gas treatment system, a refrigeration house waste heat pressure stabilizing system and a comprehensive control system, wherein the feather drying waste gas treatment system comprises a cyclone separator and an electrostatic degreaser; a gas inlet pipe of the cyclone separator is communicated with a waste gas discharge pipe, waste gas enters from the tangential direction of the cylindrical section of the separator, and solid impurities are thrown to the wall of the separator and fall to a bottom ash hopper along the wall surface; the waste gas subjected to dust removal enters an electrostatic degreaser, a high-voltage electrode and a grounding polar plate are arranged in the degreaser, grease particles in the waste gas are ionized under the action of a high-voltage electric field, and the grease particles with negative electricity are adsorbed to the grounding polar plate.

The invention relates to the field of grounding technology and electrical measurement, and discloses a grounding electrode current diffusion characteristic and environment correlation analysis method, which comprises the following steps: acquiring a ground electricity state vector representing soil electrochemical characteristics; constructing and calibrating a state phase space evolution model for describing time-space evolution of the vector; an adaptive dynamic analysis closed loop is executed, a state vector at the next moment and uncertainty are predicted through the model, an adaptive sensing protocol is generated based on the uncertainty to guide new data collection, a prediction result is corrected through new data, and a corrected state vector is obtained; and finally, based on the continuous corrected state vector, analyzing the causal association between the environment and the state, reconstructing three-dimensional complex conductivity distribution, and determining current diffusion characteristics such as grounding impedance through numerical calculation. According to the method, the limitation of static evaluation in the prior art is solved, and the dynamic prediction of the performance of the grounding system and the physical tracing of the abnormal cause are realized.

The invention provides a Kirchhoff's law-based power distribution network line loss abnormity positioning method and device, and the method comprises the steps: obtaining the temperature, moisture content and salt content parameters of soil through a multi-sensor integrated monitoring probe, embedding a special temperature and humidity sensor for a frozen soil region in the top of the multi-sensor integrated monitoring probe, and embedding a soil moisture content TDR probe in the middle of the multi-sensor integrated monitoring probe, a salt content monitoring conductivity sensor is embedded in the bottom; constructing a permafrost region resistivity correction model based on the parameters; a dynamic compensation Kalman filtering algorithm is adopted to process a model output value, and the output dynamic correction soil resistivity is transmitted to a grounding electrode detector host; and the host fuses the correction value and the electromagnetic signal acquired by the electromagnetic signal receiving sensor, and outputs the distribution state of the grounding electrode. According to the invention, a multi-sensor integrated probe is used to acquire parameters to construct a model, and a correction value and an electromagnetic signal are fused after dynamic correction by a Kalman filtering algorithm, so that the detection precision of the plateau permafrost region is improved.

The application discloses a low-NOx ammonia fuel combustion system based on plasma combustion support X The generated staged ammonia gas combustion system comprises a high-frequency high-voltage power supply, a dielectric barrier plasma generator, a gas distribution system (a blower and an ammonia storage tank), a combustion chamber and a swirler; the dielectric barrier plasma generator comprises a high-voltage electrode, an insulating medium, a swirler and a ground electrode; and the gas distribution system comprises a blower and an ammonia storage tank. The application utilizes dielectric barrier to generate ammonia gas plasma discharge, reduces the difficulty of ammonia gas combustion and improves the stability of ammonia gas combustion; utilizes the swirler to generate rotating airflow and improves the combustion efficiency; utilizes ammonia gas staged combustion to further reduce NOx emission; and the ideal staged ratio is that the volume ratio of ammonia gas plasma to side wall ammonia gas is 20% (10%-30%), so that the ammonia gas plasma can be fully discharged, and the ammonia sprayed from the side wall can also be fully combusted.

SOLUTION: A spark plug (1) having a longitudinal axis X, comprising: a housing (2) having a longitudinal bore parallel to the longitudinal axis X of the spark plug (1), whereby the housing (2) has a housing wall (20) and an internal space (21); an insulator (3) disposed inside the housing (2); a center electrode (4) disposed inside the insulator (3); and an overall length L MaEI and D MaEI a ground electrode (5) having a diameter of D Bohr The hole (50) in the housing wall (20) has a diameter of 1.5 mm, and the ground electrode (5) has a length L Bohr The ground electrode (5) is disposed in the hole (50) with a length L em The housing wall (20) projects from the inner surface (20a) of the housing wall (20) into the interior space (21) of the housing (2) with a thickness D Wall and a spark gap (45) formed between the ground electrode (5) and the center electrode (4), and a length L of the ground electrode (5) in the hole (50). Bohr The total length L of the ground electrode (5) MaEI is greater than or equal to 1.8 and less than or equal to 2.2, and / or the thickness L of the housing wall (20) Wall The length L of the ground electrode (5) projecting into the internal space (21) of the housing (2) relative to the em The ratio is greater than or equal to 0.2 and less than or equal to 3, and the length or thickness extends perpendicular to the major axis X of the spark plug (1).

The present invention relates to an RF energy generator for a finger joint, the RF energy generator comprising: a hand-worn unit worn on a hand of a user; an RF electrode unit which is positioned on one of the palm side or the back side of the hand-worn unit and comes into contact with and transmits RF energy to the user's skin; a ground electrode unit positioned on the other of the palm side or the back side of the hand-worn unit; and an electrode operation control unit which is electrically connected to the RF electrode unit and the ground electrode unit and applies electric power to the RF electrode unit, thereby controlling the operation of the RF electrode unit. The RF energy generator transmits RF energy efficiently to the finger joint, thereby shortening the time of treatment of the finger joint using RF energy and increasing the treatment effect.

The invention provides an electromagnetic field constraint system and constraint method for a CO2 laser amplifier, and the system comprises a spiral electrode which is wound on a discharge tube of the CO2 laser amplifier, the spiral electrode comprises a first DC positive electrode, a radio frequency positive electrode, a second DC positive electrode and a ground electrode which are sequentially and adjacently arranged, and the current flows through the first DC positive electrode in the electric field direction from the first DC positive electrode to the ground electrode. The electric field direction of the current from the second direct current positive electrode to the ground electrode is partially perpendicular to the electric field direction of the current from the radio frequency positive electrode to the ground electrode; the CO2 laser amplifier discharge tube and the Helmholtz coil are coaxially arranged, and the magnetic field direction of the Helmholtz coil is perpendicular to the electric field direction from the radio frequency positive electrode to the ground electrode. In the discharge area of the CO2 laser amplifier, the strong electromagnetic field restraint system is adopted, the vertical alternating high-voltage electric field and the vertical alternating high-voltage magnetic field are used for restraining plasma movement, the electro-optical conversion efficiency can reach about 20%, the CO2 laser power can be effectively improved, and the arc discharge problem under the high radio frequency power injection condition is avoided.

The application provides a plasma wall friction drag sensor, which is in a sheet shape as a whole and comprises a high-voltage electrode (10), a grounding electrode (20), a charge collecting electrode (30) and an insulating base (60). The application also provides a plasma wall friction drag sensor system, which comprises the above-mentioned sensor, a high-voltage direct-current power supply (701), a current-limiting resistor (702), a first discharge resistor (703), a grounding terminal (801), a first voltage amplifier (802) and a first output terminal (803). Furthermore, the working process of the above-mentioned plasma wall friction drag sensor system is given. The application also extends the above-mentioned sensor and sensor system to form a double sensor, a multiple sensor and a sensor system. The application can solve the technical problem of how to measure the airflow wall friction drag at low cost, high frequency response and robustness.

The present specification relates to an ultrasound probe comprising an array (200) of transducer elements (201), the probe comprising:-a first piezoelectric layer (210) divided into first piezoelectric elements (211), each first piezoelectric element comprising a first electrode (215) on a first face (210A) of the first piezoelectric layer, the first dielectric layer includes a first ground electrode (213) on a second face (210B) of the first piezoelectric layer; -a second piezoelectric layer (220) above the first piezoelectric layer, the second piezoelectric layer comprising a second ground electrode (223) on a first face (220A) of the second piezoelectric layer and being divided into second piezoelectric elements (221), each second piezoelectric element comprising a second electrode (225) on a second face (220B) of the second piezoelectric layer; -a ground plane (203) between the second face of the first piezoelectric layer and the first face of the second piezoelectric layer; -a first collector (230) assembled to a first face of the first piezoelectric layer; and a second collector (240) assembled to the second face of the second piezoelectric layer.

The invention discloses a dual-drive differential thin film barium titanate electro-optical modulator. Comprising a narrow linewidth laser, a first optical fiber waveguide coupling module, a second optical fiber waveguide coupling module, a first 1 * 2 optical beam splitter, a second 1 * 2 optical beam splitter, a first radio frequency module, a second radio frequency module, a GSGSG coplanar traveling wave electrode structure, a first waveguide and a second waveguide, wherein the GSGSG coplanar traveling wave electrode structure consists of a first ground electrode, a first signal electrode, a second ground electrode, a second signal electrode and a third ground electrode; the invention relates to an a-axis oriented barium titanate film and a substrate. After beam splitting, input laser is respectively injected into two parallel waveguides which are prepared on the barium titanate film and penetrate through the GSGSG structure. The first radio frequency module and the second radio frequency module apply composite modulation signals including direct current bias and differential radio frequency signals to the signal electrodes, so that the refractive indexes of the two waveguides have opposite sign changes to realize push-pull modulation, and modulated optical signals are output after beam combination. By means of the dual-drive differential and GSGSG electrode structure, the modulation efficiency is improved, and meanwhile the anti-interference capacity and stability of the device are remarkably improved.

The invention discloses an electric field deflector, a preparation method thereof and an electric field deflection control system, relates to the field of semiconductors, and is used for realizing high-precision control of electron beams. The electric field deflector comprises a substrate, a dielectric layer arranged on one side of the substrate, a first signal interconnection lead connected with the ground electrode, a second signal interconnection lead connected with the signal electrode, a first deflection electrode and a second deflection electrode, wherein the first signal interconnection lead and the second signal interconnection lead are located in the dielectric layer and are connected with the ground electrode, and the first deflection electrode and the second deflection electrode are oppositely arranged. The first deflection electrode is electrically connected with the first signal interconnection lead, and the second deflection electrode is electrically connected with the second signal interconnection lead; the first shielding layer is connected with the first deflection electrode; the particle beam channel penetrates through the area between the first deflection electrode and the second deflection electrode, the part, located between the first signal interconnection lead and the second signal interconnection lead, of the dielectric layer, the first shielding layer and the substrate in the second direction; the second direction is vertical to the substrate; the electric field deflector is used for electric field deflection control of the charged particle beam.

The invention discloses a device for exciting ion sound waves for noise reduction, and belongs to the technical field of vibration reduction and noise reduction. The device comprises a cathode structure, an anode structure, a noise source, a square pipeline and a high-voltage power supply device, the frequency, phase and amplitude characteristics of the ion sound wave are directly modulated through the preset combination of applied voltage, electrode gap and discharge position parameters; the cathode structure and the anode structure are composed of three kinds of electrodes, namely a cathode of a needle electrode structure, an anode of a metal wire structure and a perforated plate-shaped grounding electrode. The high-voltage power supply device is used for applying negative high voltage to the needle electrode and grounding the perforated plate, or applying positive high voltage to the metal wire electrode and grounding the cathode so as to generate corona discharge; and ion sound waves generated by corona discharge and industrial noise emitted by the noise source are subjected to sound wave superposition in the square pipeline so as to realize sound pressure counteracting. Ion sound waves are directly generated through corona discharge and are superposed and counteracted with noise sound waves, and passive noise reduction is achieved.

The present application relates to the technical field of petrochemical equipment, in particular to a liquid-liquid pulse electrostatic coalescence purification separation device, comprising a separator body, the separator body is sequentially provided with a reagent / washing water zone, a mixed liquid distribution washing zone, a pre-coalescence electrostatic zone, a coalescence electrostatic zone and a purified hydrocarbon fraction zone from bottom to top; a liquid distributor is arranged in the mixed liquid distribution washing zone, the liquid inlet end of the liquid distributor is connected with a static mixer outside the separator body, the static mixer is connected with a mixing valve, and the mixing valve is connected with a hydrocarbon fraction inlet and a reagent / washing water inlet; the pre-coalescence electrostatic zone is provided with a grounding pretreatment electrode and an energized electrode; and the coalescence electrostatic zone is provided with an energized electrode and a grounding electrode. Through the integrated design of emulsification intensification-double-zone pulse electrostatic coalescence-gravity separation, the present application realizes efficient separation of the hydrocarbon fraction and the reagent / washing water system, reduces the reagent consumption and energy consumption, improves the product purity and the operation stability.

The utility model discloses a split-type grounding electrode and a carbon fiber composite complete grounding device, the split-type grounding electrode comprises a grounding tip and a plurality of solid graphite grounding rods, the plurality of solid graphite grounding rods are connected end to end in series, the tail end of the solid graphite grounding rod at the rearmost end is connected with a copper movable hammer, and the tail end of the solid graphite grounding rod at the rearmost end is connected with a carbon fiber composite grounding device. The movable hammer head comprises a first belt penetrating channel and a second belt penetrating channel which are vertically arranged side by side. The complete set of grounding device comprises a grounding down lead, a carbon fiber composite graphite blanket, a carbon fiber composite graphite belt, a connector and a grounding module. The grounding electrode provided by the utility model is provided with the detachable movable hammerhead, and the movable hammerhead can be quickly connected with the graphite belt, so that the construction is convenient. The grounding electrode is combined with a carbon fiber composite graphite belt / blanket, a multi-dimensional conductive network is formed by using high conductivity of carbon fibers and excellent ionic conductivity of graphite, the diffusion efficiency is effectively improved, and the carbon fiber composite graphite belt / blanket is especially suitable for regions with high soil resistivity.

Disclosed in the present application are a bearing boat and semiconductor process equipment, relating to the fields of photovoltaics and semiconductors. The bearing boat comprises a support assembly and a plurality of heating plates; the plurality of heating plates are stacked on the support assembly, and an accommodating space is provided between two adjacent heating plates; the plurality of heating plates include at least one radio frequency electrode plate and at least one grounding electrode plate, and the radio frequency electrode plates and the grounding electrode plates are arranged in an alternating manner. The present application at least can solve problems such as lengthy preheating times and non-uniform preheating.

The invention relates to a measuring transducer arrangement (1) with an annular carrier element (7), which is made of an electrically conductive material, and a voltage sensor (3), which comprises a conductor film (15) arranged on the carrier element (7) and having a first layer (23) and a second layer (24). The first layer (23) has at least one strip-like measuring electrode (27), which is connected to an electrical measurement potential. The second layer (24) has at least one strip-like earth electrode (28), which is connected to an electrical earth potential. The carrier element (7) is connected either to the measurement potential or to the earth potential.

The utility model provides an LED device based on mini LED lamp drive integrated design, which is characterized in that a drive chip and LED chips are arranged on the front surface of a substrate, extraction electrodes are arranged on the back surface of the substrate, and the LED chips comprise mini LED chips; the leading-out electrodes comprise a red light power supply electrode, a blue-green light power supply electrode, a grounding electrode and three communication electrodes, three positive electrodes of the mini LED chip are respectively connected to the driving chip and are respectively and correspondingly connected to the red light power supply electrode and the blue-green light power supply electrode through the driving chip and the conducting holes so as to respectively drive the red light power supply electrode and the blue-green light power supply electrode, and the driving chip is provided with three communication ports. According to the LED device based on the mini LED lamp drive integrated design, the drive chip and the LED chip are both arranged on the front face of the substrate, only one-time surface mounting technology needs to be executed to the production of a backlight plate, and the production cost of downstream manufacturers can be effectively reduced; the red lamp is driven separately, communication channels are multiple, the controllability of the mini LED chip can be improved, and convenience is provided for power consumption regulation and control and light emitting effect regulation and control.

The invention discloses a phase shifter and an antenna. The phase shifter comprises at least one phase shifting unit, the phase shifting unit comprises a phase shifter wire, an adjustable dielectric layer and a grounding electrode layer, the phase shifter wire comprises a main wire and at least one branch wire in cross connection with the main wire, and the grounding electrode layer comprises at least one patterned area. The patterned region comprises at least two sub-hollow-out regions arranged along the first direction and a part of the grounding electrode layer between the adjacent sub-hollow-out regions. The orthographic projection of the branch wiring on the plane where the grounding electrode layer is located is located between the orthographic projections of the two adjacent sub-hollowed-out areas on the plane where the grounding electrode layer is located and is overlapped with the grounding electrode layer between the two adjacent sub-hollowed-out areas. According to the phase shifter and the antenna provided by the embodiment of the invention, larger phase change can be realized in a shorter physical length, so that the length of the routing of the phase shifter can be shortened, the loss of a radio frequency signal on the routing of the phase shifter is reduced, and the beam quality and the radiation power are improved.

An electrode lead for artificial implantation in a cochlear system includes a tube having an interior volume and an outer peripheral surface; a plurality of stimulating electrodes disposed on a distal portion of the electrode lead; a ground electrode disposed on a proximal portion of the electrode lead for providing a current return path for stimulating current generated by the plurality of stimulating electrodes, wherein the ground electrode is annular and secured to the outer peripheral surface around the outer peripheral surface of the tube; and a ground lead extending within the interior volume of the tube to the ground electrode and electrically connected to the ground electrode through an opening in the wall of the tube. The ground electrode includes a first end portion, a central portion axially adjacent the first end portion, and a second end portion axially adjacent the central portion, wherein an outer surface of the central portion is radially elevated relative to an outer surface of the first end portion and an outer surface of the second end portion so as to form a step at a boundary between the first end portion and the central portion and a step at a boundary between the second end portion and the central portion, respectively.

The invention provides a visible light modulator which is small in size and capable of high-speed driving at low voltage. An optical modulator (1) is provided with: a substrate (2); an optical waveguide layer (3) comprising lithium niobate in which a plurality of MZ-type waveguides including first and second ridge waveguides that propagate visible light are arranged in parallel; a signal electrode having an interaction portion disposed along the MZ-type waveguide; the optical modulator includes a first ridge waveguide, a second ridge waveguide, a signal electrode disposed above the first ridge waveguide, a first ground electrode disposed above the second ridge waveguide, and signal electrode lead-out portions (62R-3, 62B-3, 62G-3) connecting the signal electrode and a pad disposed at an end edge portion (S3), and a second ground electrode disposed above the first ridge waveguide and the second ridge waveguide, the signal electrode lead-out portions (62R-3, 62B-3, 62G-3) connecting the signal electrode and the pad disposed at the end edge portion (S3). And a light multiplexing unit (40) that is disposed downstream of the Mach-Zehnder waveguide and multiplexes the plurality of visible light, in which the first ground electrode, the second ground electrode, and the signal electrode lead-out unit are disposed at positions that do not overlap the light multiplexing unit in plan view.

Provided are a semiconductor element driving circuit, a semiconductor device driving circuit, and a semiconductor device that are further miniaturized in a semiconductor device including a plurality of semiconductor elements. A semiconductor element driving circuit comprising a plurality of semiconductor elements connected in series in a single row between a power supply electrode and a ground electrode, and current supply control transistors respectively connected in parallel to the plurality of semiconductor elements, wherein: each of the current supply control transistors functions as a switch that controls, on the basis of a first external signal, the flow of current to the semiconductor element connected in parallel thereto; when the current supply control transistor is turned off by the first external signal, current flows through the semiconductor element connected in parallel to the current supply control transistor; and when the current supply control transistor is turned on by the first external signal, the flow of current to the semiconductor element connected in parallel to the current supply control transistor is stopped.

This application provides a method, apparatus, device, and storage medium for controlling stray current in pipelines, relating to the field of stray current protection technology. The method includes: acquiring real-time stray current distribution information for each pipeline section along the pipeline. The distribution information includes the stray current intensity flowing through each pipeline section. The distribution information is input into a preset first model, and the target grounding electrode is output from the candidate grounding electrodes corresponding to each pipeline section. The first model is constructed based on historical detection information and the equivalent circuit principle of stray current diversion and grounding, used to determine the target grounding electrode. The historical detection information includes historical stray current distribution information and corresponding historical target grounding electrodes. The target grounding electrode is then activated, used to guide the stray current into the soil.

Sensor arrangement (100), comprising: a case (120); an angle sensor (110) provided in the housing (120); and a humidity sensor (150) which is provided in the housing (120), wherein the humidity sensor (150) comprises a ground electrode (151), a first input electrode (152), a second input electrode (153) and a control unit (170) which is electrically connected to the ground electrode (151), the first input electrode (152) and the second input electrode (153) to detect humidity, the ground electrode (151), the first input electrode (152) and the second input electrode (153) extend downwards from the housing (120), a lower end of the ground electrode (151), a lower end of the first input electrode (152) and a lower end of the second input electrode (153) are exposed towards the outside of the housing (120), and the first input electrode (152) extends downwards at a different height compared to the second input electrode (153).

The invention discloses a denitration, desulfurization and noise elimination integrated purification system for a ship. The system comprises a cylindrical shell, and the interior of the cylindrical shell is divided into two cavities, namely a first expansion cavity and a second expansion cavity, by a perforated plate and a perforated pipe which are fixed to the cylindrical shell; the perforated pipe serves as an inner electrode, the cylindrical shell serves as a grounding electrode, an annular space among the perforated plate, the perforated pipe and the aluminum oxide ceramic serves as a discharge area, and the first expansion cavity and the second expansion cavity serve as an absorbent premixing and primary silencing unit and a plasma reaction and secondary silencing unit respectively. And a chemical absorption unit and a waste liquid collection unit are arranged at the downstream of the plasma reaction and secondary silencing unit in the tail gas flowing direction. According to the system, the two stages of expansion cavities and the tubular electrodes installed on the perforated plate form a composite noise elimination structure, and remarkable noise reduction is achieved. The device has the outstanding advantages of being compact in structure, light in weight, free of catalyst dependence, efficient in working in a wide temperature range and the like, and has a good reduction effect on harmful gas in low-temperature flue gas of a ship engine.

The application provides a bendable electric purification structure and dust removal device, which comprises a plurality of dust collecting plates, a plurality of dust collecting plates are arranged in sequence and are arranged at intervals; a discharge electrode, the discharge electrode is deformed after being stressed; a grounding electrode assembly, each dust collecting plate is located between the grounding electrode assembly and the discharge electrode, the grounding electrode assembly comprises a plurality of grounding electrodes, each grounding electrode is connected in sequence, and adjacent two grounding electrodes are rotatably arranged; a telescopic assembly, each dust collecting plate is connected with the telescopic assembly, the telescopic assembly is deformed after being stressed, and the dust collecting plate moves along with the deformation of the telescopic assembly; and two insulating plates, two ends of the discharge electrode, the grounding electrode assembly and the telescopic assembly are respectively connected with each insulating plate, two insulating plates are pulled to make the discharge electrode and the telescopic assembly deform, and each grounding electrode rotates relatively. The bendable electric purification structure and dust removal device solve the technical problem that the electric purification module cannot be deformed in the related art, and the use of the electric purification technology is limited.