218 results about "Faraday cage" patented technology

The present disclosure provides a protective enclosure for electronic systems. The enclosure comprises a polymer-containing matrix and a metamaterial incorporated into the matrix. The metamaterial is tuned to a specific permittivity or permeability to absorb or reflect a particular frequency. The protective enclosure may be used to create a safe inner environment for electronic components while facilitating uninterrupted wireless communications to / from the outer environment. Additionally, the protective enclosure may be used to protect against electromagnetic interference. In particular, shielding metamaterials are configured individually or in combination to specifically shield (via reflection, absorption, etc.) against relatively wide bands of electromagnetic frequencies, while transparent metamaterials are configured specifically to pass electromagnetic signals within narrow bands of frequencies. This new approach resolves and vastly improves current shield solutions, such as Faraday cages. For example, tuned metamaterials may be configured across a variety of preconfigured frequencies, and can be constructed of lightweight materials.

The invention discloses an efficient light guide mounting bracket matched with a solar photovoltaic panel, which comprises an equipment base, a photovoltaic panel, a Fresnel lens, a magnetic field generator and a temperature difference generator, and is characterized in that the equipment base is fixedly connected with a rotating mechanism, and the rotating mechanism is movably connected with an inclination mechanism for adjusting the angle of the photovoltaic panel; a supporting mechanism is movably connected to the upper portion of the rotating mechanism and comprises a fixing support movably connected to the rotating mechanism. Through the wind-resistant mechanism, self-adaption to different wind power environments is achieved, the magnetic field intensity of the magnetic field generator is regulated and controlled, the magnetorheological fluid increases resistance to limit shaking under strong wind and reduces resistance to guarantee flexible rotation in breeze, meanwhile, a Faraday cage formed by the magnetorheological fluid shields electromagnetic interference, a photovoltaic panel is protected against wind power damage, stability of an electrical system is guaranteed, and the service life of the photovoltaic panel is prolonged. And the equipment fault risk is reduced, the service life is prolonged, and the solar photovoltaic power generation system is ensured to continuously and stably operate in a complex outdoor environment.

A power feeding device that is connected to a Faraday cage containing a flight vehicle via a conductor and supplies lightning power generated from a lightning surge that has struck to a battery of the flight vehicle, and a ground line that connects the power feeding device and a ground surface are provided, the power feeding device includes a capacitor connected in series between the Faraday cage and the ground line, a lightning arrester connected in parallel to the capacitor, and a step-down converter that steps down a terminal voltage of the capacitor charged by the lightning surge to generate lightning power and supplies the generated lightning power to the battery.

The utility model provides a wireless vibration sensor for power transmission tower bolt looseness detection. The wireless vibration sensor comprises a shell, a piezoelectric sensitive base, a signal acquisition circuit board, a wireless transmission module, a battery and a Faraday cage type shielding cover. The piezoelectric sensitive base is connected to the bottom position of the shell, a piezoelectric material is installed in the piezoelectric sensitive base, a fixing plate is arranged in the piezoelectric sensitive base, and the signal acquisition circuit board is arranged on the upper surface of the fixing plate; the wireless transmission modules are arranged above the signal acquisition circuit board at intervals through a support and located in the shell, the support is vertically arranged on the upper surface of the fixing plate, and the wireless transmission modules are detachably arranged on the support and electrically connected with the signal acquisition circuit board through conductive spring contact pieces. And the Faraday cage type shielding case is arranged around the wireless transmission module and is grounded, and the Faraday cage type shielding case is made of a conductive metal net. According to the invention, the working stability of the sensor in a high electromagnetic interference environment is improved, so that the reliability of data transmission can be ensured.

A drone protection system that protects a drone from lightning strikes includes a Faraday cage enclosing the drone; and a wire capable of moving along the Faraday cage while maintaining connection with the Faraday cage with an end portion (connection unit) connecting to the Faraday cage.

A superconducting quantum processor unit for quantum computing is provided. The processor unit is formed from the union of a qubit chip and a wiring chip with superconducting bonding bumps and spacers. The bumps may be densely distributed around active elements between the two chips and effectively form a Faraday-Cage around the qubits, control signal waveguides etc. The qubit chip has strategically spaced qubits and an inductively coupled probe line and the wiring chip has a bus coupling resonator with a number of voltage nodes and anti-nodes, a resonator pump and at least one SQUID. Magnetic flux applied through the SQUIDs changes their impedances and modifies the microwave boundary conditions of the bus. This allows in-situ shifting of electric field distributions of the resonance modes of the bus along the length of the bus. This tunes the coupling rates of the bus to all qubits simultaneously.

The invention relates to the field of electronic material technology and lightning protection, in particular to a progressive impedance thin film material compatible with lightning protection / edge scattering control. The passive protection method based on the Faraday cage concept is applied to lightning stroke protection of a typical edge scattering suppression structure, the surface of the typical edge scattering suppression structure is covered with the whole full-covering periodic hollow impedance film, and the original electrical performance is not negatively influenced by setting the parameter value of each hollow pattern through calculation; and the lightning protection progressive impedance film can effectively guide away lightning current injected into the target body, so that the lightning current smoothly flows into the conductor to well protect the wave-absorbing material below the conductor, thereby achieving a good lightning protection effect and achieving the lightning protection effect at the same time. The method is simple in process, high in operability, easy to implement industrially and suitable for popularization.

The invention relates to an electrochemical sensor for monitoring beta cell insulin secretion in real time and a preparation method and application thereof, the sensor is an electrochemical chip modified by a multi-dimensional nano material, and the multi-dimensional nano material on the electrochemical chip is used for capturing dopamine released by beta cells; and determining the release quantity of dopamine according to the electrochemical signal. According to the method, the insulin secretion condition of the beta cells is monitored in real time by taking dopamine as a tracer agent, and the exocytosis process of the beta cells can be researched under natural and normal conditions. According to the invention, only a common Faraday cage and a basic electrochemical workstation are needed for detection, one or more beta cells can be detected, the operation is simple, and the research efficiency of insulin secretion is greatly improved. In addition, the medicine for regulating beta cell insulin secretion can be efficiently screened, and a foundation is laid for research of diabetes treatment medicine.

The present disclosure provides a protective enclosure for electronic systems. The enclosure comprises a polymer-containing matrix and a metamaterial incorporated into the matrix. The metamaterial is tuned to a specific permittivity or permeability to absorb or reflect a particular frequency. The protective enclosure may be used to create a safe inner environment for electronic components while facilitating uninterrupted wireless communications to / from the outer environment. Additionally, the protective enclosure may be used to protect against electromagnetic interference. In particular, shielding metamaterials are configured individually or in combination to specifically shield (via reflection, absorption, etc.) against relatively wide bands of electromagnetic frequencies, while transparent metamaterials are configured specifically to pass electromagnetic signals within narrow bands of frequencies. This new approach resolves and vastly improves current shield solutions, such as Faraday cages. For example, tuned metamaterials may be configured across a variety of preconfigured frequencies, and can be constructed of lightweight materials.

The utility model relates to the field of signal acquisition, in particular to a signal acquisition structure with a signal shielding protection structure. The technical problem is that in the process of collecting weak signals, a conductive material is used for wrapping a signal collector to form a Faraday cage effect, so that a method for blocking external electromagnetic interference may cause certain influence on target signals, and thus the collection result may be slightly influenced. According to the technical scheme, the signal acquisition structure with the signal shielding protection structure comprises a heat dissipation assembly, a heat conduction assembly and an anti-interference assembly. By arranging the adjustable shielding device and the built-in heat dissipation system, the equipment can flexibly adjust the contact area between the signal receiving assembly and the outside, so that the acquisition effect is prevented from being influenced by insufficient target signal strength, and meanwhile, the built-in heat dissipation system can reduce the internal temperature of the equipment in real time, so that the acquisition efficiency is improved. Efficient operation in the signal acquisition process is ensured, and performance reduction caused by overheating is prevented.

The invention relates to the field of electronic material technology and lightning protection, in particular to an all-metal progressive impedance edge scattering control material compatible with lightning protection. The passive protection method based on the Faraday cage concept is applied to lightning stroke protection of a typical edge scattering suppression structure, the surface of the edge scattering suppression structure is covered with the whole full-covering periodic hollow full-metal membrane, and the gradual hollow metal sheet is formed by carving a gradual change hole unit structure on the metal sheet. Therefore, the propagation characteristic of the electromagnetic wave on the metal surface is changed, and the electromagnetic wave adjusting effect is achieved. According to the invention, no negative influence is generated on the original electrical performance, strong lightning protection is compatible, and lightning current injected into a target body can be efficiently guided away, so that the lightning current smoothly flows into a conductor to well protect a wave-absorbing material below the conductor, and a good lightning protection effect is achieved. The method is simple in process, high in operability, easy to implement industrially and suitable for popularization.

An enclosure to protect people and instruments from the effects of an electromagnetic pulse (EMP) is provided. The enclosure includes a floor assembly; walls extending upward on a first, second, third, and fourth side of the floor assembly; a roof; and a ceiling. On the interior of the enclosure, a shield layer is provided such that the enclosure forms a six-sided Faraday cage. Fasteners and other conductive securement materials such as copper tape help achieve the conductivity of the shield layer. Extending through the walls of the enclosure may be secure points of entry allowing for people, air, and conductors to securely enter and exit the enclosure. The enclosure contains a grounding system to assist with protecting the contents of the enclosure from the effects of the EMP.

The utility model provides an electromagnetic shielding structure for protecting extra-high voltage static electricity of a display screen, which comprises an electromagnetic shielding film and a metal foil shielding cover which are matched with each other, and the electromagnetic shielding film is arranged between the display screen and a touch screen and is tightly attached to the front surface of the display screen. The periphery of the electromagnetic shielding film is provided with a conductor material periphery and is in 360-degree fixed ring connection with the periphery of the metal foil shielding cover, the metal foil shielding cover is arranged on the back face of the display screen, the peripheral edge of the metal foil shielding cover is in 360-degree fixed ring connection with the metal shell, and the electromagnetic shielding film and the metal foil shielding cover can form a Faraday cage on the periphery of the display screen. The display screen has the advantages that external electromagnetic interference and extra-high voltage static electricity can be blocked for the display screen, and the electromagnetic interference and extra-high voltage static electricity protection capacity of the display screen can be greatly improved.

The invention discloses a high-voltage electric pulse cracking coal rock stress shock wave monitoring device which comprises a high-voltage pulse capacitor, a voltage divider, a high-voltage pulse switch, a high-voltage pulse cracking generation chamber, a high-voltage probe, a Rogowski coil and an oscilloscope. A test piece is fixed in the high-pressure pulse cracking generation chamber, a circle of test piece clamping assembly corresponding to the test piece is arranged in the high-pressure pulse cracking generation chamber, needle-shaped electrodes are arranged on the two sides, not provided with the test piece clamping assembly, of the test piece, and a piezoelectric pressure sensor is arranged on the high-pressure pulse cracking generation chamber. The detection signal output ends of all the piezoelectric pressure sensors are connected with the pressure detection signal input end of the stress wave signal collector, and a Faraday cage used for covering the piezoelectric pressure sensors is arranged in the high-pressure pulse fracturing generation chamber. The propagation characteristics of the high-voltage electric pulse stress shock waves in the coal rock mass can be accurately and directly captured in real time, and accurate and reliable data support is provided for deep research on a high-voltage pulse electric crushing mechanism.

The invention relates to the technical field of PVB heat-insulating films, in particular to a PVB heat-insulating film based on indium tin oxide and bronze cesium tungsten compounding and a preparation method thereof.The PVB heat-insulating film is prepared from, by weight, 80-120 parts of PVB resin, 20-50 parts of oily plasticizer, 0.1-2.0 parts of silane coupling agent, 0.1-1.0 part of antioxidant, 0.1-1.0 part of ultraviolet light absorber, 1-5 parts of polyethylene glycol derivative and 1-5 parts of compound dispersion slurry, the weight ratio of the indium tin oxide powder to the bronze cesium tungsten powder in the compound dispersed slurry is (5: 5)-(7: 3). According to the PVB heat-insulating film based on indium tin oxide and cesium tungsten bronze compounding and the preparation method, the prepared PVB heat-insulating film has high visible light transmittance and excellent near-infrared light rejection rate, meanwhile, the Faraday cage effect can be effectively avoided, and the signal shielding problem is avoided.

The invention discloses an iterative harmonic working point static verification method, electronic equipment and a storage medium, and belongs to the technical field of static verification, the iterative harmonic working point static verification method comprises the following steps: placing an optical electric field sensor and verification equipment in a Faraday cage; an alternating current source is connected to a high-voltage transformer, a power frequency electric field with known intensity is generated through a pair of parallel electrode plates, and an optical electric field sensor is located between the pair of parallel electrode plates; emitting polarized light to an optical electric field sensor waveguide, and loading an electric field signal to be measured on a light wave; converting the electric field signal into an analog electric signal through a photoelectric conversion circuit; and the digital signal processing circuit demodulates and calculates the numerical value of the measured electric field. Static working point calibration is performed through a power frequency electric field environment, and a linear working point of the sensor is controlled by using a laser wavelength tuning and iteration method, so that the stability and accuracy of the optical electric field sensor in a high-voltage electric field environment are improved.

The invention relates to a cover plate device, belongs to the technical field of constructional engineering, and particularly relates to a cover plate device of a Faraday cage reserved joint and a construction method thereof, the cover plate device comprises a joint cover plate, one side of the joint cover plate is in contact with a concrete surface, and the cover plate device further comprises a plurality of wood nail holes formed in the side edge of the joint cover plate in a penetrating manner; a clamping hole matched with a Faraday cage steel bar is formed in the connector cover plate in a penetrating mode. One side of the joint cover plate is saw-toothed; according to the method, the flow of the reserved joint of the Faraday cage is simplified, the accuracy of the reserved joint can be ensured, the construction speed can be increased, meanwhile, subsequent wall Faraday cage connection is facilitated, the reserved construction efficiency and the reserved quality of the Faraday cage can be greatly improved, and the problems that an existing mode of welding the reserved joint through template drilling is low in construction efficiency and low in construction cost are solved. The joint positioning is not accurate; and the subsequent Faraday cage connection is not convenient.

A variable-message traffic sign display panel outdoors has, for emitting graphical images or symbols, an optical pixel grid with concentrated light emission, and a single large housing which provides technical advantages over known modular assemblies. The presented design uses a carrier plate (1) which is perforated in the grid pattern as a housing front and uses plastics tiles (21) having pixel optical units (24) which are installed in the grid pattern and are sealingly adhesively bonded onto the carrier plate (1) without gaps. The optical units (24) extending through the hole grid are illuminated on the inside by LED boards (41) which are directed at the optical units (24) by means of positioning pins (4) and which are evenly pressed against the optical units (24) by means of springs (48). The carrier plate (1) is stiffened by means of longitudinal and transverse struts (5, 6) and welded to the housing and forms a Faraday cage together with the housing.

The invention provides a Faraday cage device for calibration of an electrostatic discharge simulator, which is used for solving the problem of electromagnetic interference during calibration of the electrostatic discharge simulator and has the advantages of better shielding performance, heat dissipation performance and the like. The device comprises a box body and a box door, the box door is connected with the box body through a hinge, a lock catch structure is arranged at the opening and closing position of the box body and the box door, and a door handle is installed on the left side of the box door; an electrostatic discharge target and a grounding pole are installed on the left side of the outer surface of the box body, and the grounding pole is located under the target center of the electrostatic discharge target. A partition plate is arranged in the box body and is lower than the electrostatic discharge target; a coaxial flange connected to the outside of the box body is arranged on the rear side of the inner surface of the box body and is higher than the partition plate; and the power supply filter is arranged on the rear side of the inner surface of the box body and is lower than the partition plate.

The present invention belongs to the technical field of semiconductor testing equipment, and specifically relates to a charge arrangement device applied to a probe station. The present invention includes a sealing top cover fixed on the probe platform by a connecting plate and provided with positioning through holes on both sides, a protective layer arranged on the probe platform, an insulating layer arranged between the probe platform and the protective layer, side plates fixed on the left and right sides of the probe platform, a front plate and a rear plate fixed on the front and rear ends of the probe platform, a support frame fixed on the base of the probe station by a support pad, and a sliding bottom plate assembly clamped on the support frame; the stage of the probe station is rotatably connected to the base of the probe station through the sliding bottom plate assembly. By managing the charge arrangement structure, the test object is placed in a "Faraday cage" cavity, and by managing the potential arrangement of each structure of the probe station, the occurrence of factors that are not conducive to integrated circuit testing, such as parasitic capacitance, common mode voltage, and ground loop current, is reduced, thereby improving the testing capability of the probe station.

The invention belongs to the technical field of electromagnetic radiation leakage, and particularly relates to a low-leakage handheld terminal. According to the method, efficient electromagnetic shielding is achieved in a Faraday cage structure mode through lap joint of all parts, the surface of a resistance screen is covered with an irregular metal net, and the space between the irregular metal net and a front cover is filled with an aluminum silver-plated conductive rubber plate used for cushioning and extrusion to achieve electric continuity between the irregular metal net and the front cover. The front cover, the middle frame and the rear cover are electrically continuous through opposite-penetrating screws, and copper foils are filled among contact surfaces of the middle frame, the rear cover and the front cover to enhance conductivity, so that the whole handheld terminal structure is in an electrically continuous state. The broadband electromagnetic shielding material has the beneficial effects that the electromagnetic shielding performance is remarkably improved, broadband effective protection is realized, the problem that the frequency band of a traditional electromagnetic shielding material is narrow is effectively solved, the shielding effectiveness of 40-50dB is realized in the broadband range of 30MHz to 1GHz, and the information safety level of equipment in an electromagnetic sensitive environment is remarkably improved.

The utility model discloses a kind of inert gas monitoring devices for subway strong magnetic environment belongs to strong magnetic environment gas monitoring device technical field.The inert gas monitoring device includes control module, control module is provided with sensor;Shell, control module is installed in shell, the outer periphery of shell is covered with plating layer, plating layer is metal plating layer, make shell form faraday cage, faraday cage is hollow structure.The inert gas monitoring device is set by metal plating layer in the outer periphery of shell, make shell form faraday cage, to be able to shield induced electromagnetic field in machine room, guarantee sensor and control module can normally operate, so that the inert gas monitoring device can accurately collect the concentration of inert gas.When the concentration of inert gas is monitored to reach certain condition, control center will issue early warning, prevent staff from entering machine room under the condition that inert gas concentration is relatively high, avoid the health of staff is affected.

The invention discloses a gas-solid triboelectrification test method and device for a moving object, and relates to the technical field of triboelectrification measurement, and the method comprises the following steps: constructing a sample ball and gas triboelectrification model in a free falling process of a sample ball in a glove box with a built-in Faraday cage based on a Maxwell velocity distribution rule; carrying out standardized pretreatment on the sample small balls to remove residual charges on the surfaces of the sample small balls; performing air replacement in the glove box with the built-in Faraday cage until the internal air pressure and environmental parameters meet the test requirements, and determining the diameter range and the falling height of the sample small ball; filtering the electrostatic charge signal, reading the electrostatic charge quantity of the small sample ball at different falling heights, and determining the charge quantity increased by the small sample ball in the free falling process of the glove box with the built-in Faraday cage; the gas-solid friction electrification quantity of the moving object under the influence of the object moving speed, the effective friction area and the environment air pressure factor is measured in a non-contact mode.

A disaster relief device is provided that integrates power generation, water purification, and communications into a single portable housing. The device includes a water treatment system having reusable pre-filters, multi-stage sediment filters, a reverse osmosis unit, and a UV sterilizer, together with a clean water storage tank mounted on a drawer for field servicing. An electrical subsystem incorporates a lithium iron phosphate battery pack in a fire-resistant enclosure, a charge controller, and a pure sine wave inverter. A hybrid solar array, including hinged and slide-out panels, provides rapid renewable power deployment, with guided cable carriers ensuring reliability. The housing is sealed to an IP66 rating, reinforced to function as a Faraday cage, and configured for transport with folding handles and airless wheels. Optional features include an integrated rainwater harvesting system, modular interconnection of multiple units for scaling capacity, and a satellite communications bracket for emergency connectivity.

A modular system of medical article containers is used to form enclosures of selectable storage space. The containers are each RF shielded and include an interconnect wall for connecting to another container to form the enclosure. The interconnect walls have a complementary design. The interconnect seam of two containers includes an electrically conductive component that also interconnects the RF shields of the two containers together. The interconnect seam also includes a tortuous path seal for greater RF shielding of the enclosure. The walls of the containers include a substrate of non-electrically conductive material for weight reduction and an electrically conductive element that is coextensive with the substrate. One embodiment is a plastic substrate with a metallic mesh. The enclosure provides a Faraday cage about the interconnected containers. Enclosures of differing heights and sizes can be made, and they may be stacked or otherwise assembled.

Systems and methods for component isolation are disclosed. In one aspect, one or more ferromagnetic walls may be positioned between components such as for example, filters (acoustic or otherwise), surface-mounted devices (SMDs), amplifiers, switches, or the like. The ferromagnetic walls may be introduced as part of an overmold package and may be thinner than conventional Faraday cages or shields, allowing components to be placed in closer proximity without increasing crosstalk or electromagnetic interference (EMI).

This invention discloses an iterative tuning operating point static calibration method, electronic device, and storage medium, belonging to the field of static calibration technology. The iterative tuning operating point static calibration method includes placing an optical electric field sensor and calibration equipment within a Faraday cage; using an AC source connected to a high-voltage transformer to generate a power frequency electric field of known intensity through a pair of parallel electrode plates, with the optical electric field sensor positioned between the two plates; emitting polarized light to the waveguide of the optical electric field sensor and loading the electric field signal to be measured onto the light wave; converting the electric field signal into an analog electrical signal through a photoelectric conversion circuit; and demodulating and calculating the measured electric field value through a digital signal processing circuit. Static operating point calibration is performed in a power frequency electric field environment, and the linear operating point of the sensor is controlled using laser wavelength tuning and an iterative method, improving the stability and accuracy of the optical electric field sensor in a high-voltage electric field environment.

This invention discloses a double-layer bend-resistant flexible circuit board and its processing method, comprising: a core layer, wherein circuit layers are laid on both the upper and lower surfaces of the core layer. This invention has the following beneficial effects: functional layering and electromagnetic shielding are achieved through conductive patterns on the two circuit layers. The conductive patterns on the top circuit layer are arranged in a ring, serving as a complete grounding / shielding layer. Together with the four rings of conductive patterns at the bottom, they form an upper shielding and lower signal architecture, providing a stable reference plane and Faraday cage shielding for internal high-speed signals. This greatly suppresses signal crosstalk and external electromagnetic interference. Furthermore, through stress holes and protrusions, the openings form a controllable low-stiffness zone on the bending axis, actively guiding the uniform release of bending stress at this point. This protects fragile vias and delicate conductive pattern traces from fatigue fracture. Moreover, the protrusions wrapping around the conductive patterns can generate additional deformation space and buffer, dispersing the stress acting on the conductive patterns.

The application relates to a Faraday cage type aptamer sensor based on a MOF nanofilm and a method for detecting Staphylococcus aureus. A 1,1'-ferrocene carboxylic acid is used as a ligand, zirconium / hafnium is used as a central atom, and a Zr-based MOF nanofilm with different hafnium doping ratios is synthesized by using a bottom-up method. A Zr / Hf-MOF nanofilm with large size and excellent conductivity is selected as a two-dimensional signal probe, and is used for constructing an aptamer sensor of a Faraday cage. When Staphylococcus aureus exists, the Zr / Hf-MOF nanofilm is attached to the surface of an electrode to form a Faraday cage sensing interface, the interface expands an outer Helmholtz plane layer, leads to direct electron transmission between the electrode and the signal probe, and thus Staphylococcus aureus can be detected through an electrochemical workstation. The detection method of the application can realize detection of a large target by requiring the size and conductivity of the MOF nanofilm, and effectively amplifies the electrical signal through the Faraday cage structure, and has excellent detection specificity and sensitivity.

The invention relates to the technical field of optocouplers, in particular to a common-mode interference resistant optocoupler packaging structure based on condenser integration. The projection of the MYLAR collecting lens on a virtual plane completely covers elements on an IR pin and a PT pin base island, 120-degree divergent light of an IR chip is focused to a light spot with the diameter being 0.15 mm, the energy density reaches 230 mW / mm, 8mA driving current can output 18.2 V, a Faraday cage is formed by means of an aluminum plating layer on the surface of the MYLAR collecting lens, stray capacitance is reduced to 0.5 pF under the distance being 0.3 mm, + / -80 V common-mode pulse interference can be resisted, and the requirement for high-power LED light sources is met. The light-transmitting positioning column is arranged along the optical axis of the MYLAR collecting lens, so that the position of a light spot is more accurate and concentrated in a photosensitive area of the PVG, and stable light energy input is provided for the PVG; the technical problems that an existing ternary LED is insufficient in light intensity, the optical axis temperature electric leakage of a quaternary LED is large, and the small size and the anti-interference requirement repel each other are solved.