63 results about "Thermal electron" patented technology

The utility model provides a partition heating electronic atomization component and device which are simple in assembly, the electronic atomization component comprises a support, a liquid guide unit and a heating unit, a cavity is arranged in the support, the cavity extends to the edge of the support to form an opening for the liquid guide unit to be installed in, the liquid guide unit comprises a separator and at least two liquid guide parts, and the separator is arranged in the cavity. The at least two liquid guiding pieces are arranged at intervals in the extending direction of the cavity, and a separating piece is arranged between every two adjacent liquid guiding pieces. The electronic atomization device comprises a shell and the electronic atomization assembly arranged in the shell. According to the electronic atomization assembly and device, the liquid guide piece is separated through the separation piece, and mutual interference of different kinds of liquid is avoided. Moreover, when the electronic atomization assembly is produced and assembled, as long as the liquid guide pieces and the isolation pieces are installed in the cavity from the opening of the shell together, the isolation pieces play a role in supporting the two adjacent liquid guide pieces, it is ensured that the distance between the installed liquid guide pieces meets the requirement, assembly is easy, cost is low, and the production efficiency and stability of products are greatly improved.

Thermionic generators are described herein that include a variety of features that allow the devices to efficiently and effectively convert large amounts of thermal energy directly to electrical energy, such as in the form of currents and / or voltages. For example, the thermionic generators can be used to generate an electron beam from a thermionic emission device, and focus or shape the electron beam in such a way that allows the energy of electrons in the electron beam to be captured and converted to electrical energy.

The invention relates to the technical field of detector control, and discloses a low-noise thermoelectric refrigeration type detector control method and device, and the method comprises the steps: collecting the real-time temperature parameter of a detector, and calculating the temperature prediction data; detecting the current exposure time length of the detector and forming a control strategy; thermal electron noise calculation is carried out based on the temperature prediction data, and a chip temperature upper limit constraint value is determined; establishing a constraint optimization equation based on the control strategy and the chip temperature upper limit constraint value, and solving a driving current value; the thermoelectric refrigerating unit driving circuit adjusts the refrigerating power of the double-layer thermoelectric refrigerating structure according to the driving current value, chip temperature control is completed, collaborative optimization of temperature control and noise suppression is achieved, and the technical problem that temperature precision and noise performance conflict with each other is solved.

A device for thermionic arc extinction via anode ion depletion. The device includes a body including an inner compartment. The inner compartment includes at least an arc shield housing at least two arcing contacts, wherein the two arcing contacts are zinc-plated. The at least two zinc-plated arcing contacts further comprise a thickness and contact area customized based on a desired corrosion time of the zinc, wherein the corrosion time corresponds to extinction of the arc. A sensor is associated with the device. The sensor is configured to operate the movement of the at least two arcing contacts.

In order to perform shaping control in accordance with a molten state of a shaping surface in three-dimensional additive manufacturing, provided is a three-dimensional additive manufacturing system that performs additive manufacturing by using a shaping beam in a vacuum. The three-dimensional additive manufacturing system is characterized by comprising: a thermal electron detection unit that detects an amount of thermal electrons emitted from the shaping surface by irradiating the shaping surface with the shaping beam; and a control unit that controls the operation of the shaping beam in accordance with the amount of thermal electrons. Also provided are a control method therefor and a control program therefor.

The invention discloses an ion enthalpy flux testing device and an ion enthalpy flux testing method for lightning return stroke damage analysis. The testing device comprises a metal net and a low-melting-point metal layer; the metal net is grounded and is used for leading out heat and electrons generated in the lightning return stroke process; the low-melting-point metal layer is not grounded, and an air gap is formed between the low-melting-point metal layer and the metal net; during application, ions generated in the return stroke of thunder and lightning pass through the metal net and then reach the low-melting-point metal layer through air gaps, and bombard the low-melting-point metal layer to generate hot melting damage; the ablation volume on the low-melting-point metal layer is used for representing the ion enthalpy flux. Separation of Joule heat, electron enthalpy flux and ion enthalpy flux is achieved, quantitative measurement of the ion enthalpy flux is achieved, and the accuracy of accumulative damage evaluation can be improved when the device is applied to lightning return stroke damage analysis.

The present application discloses a long-life X-ray pulse beacon device based on a nuclear battery, comprising an X-ray pulse source and a power module connected to the X-ray pulse source. The X-ray pulse source comprises: a first housing; a beta radiation source disposed within the first housing for generating beta particles; a transmissive thin-film hot cathode disposed within the first housing for receiving bombardment from the beta particles to generate thermal electrons; an anode target disposed within the first housing for receiving bombardment from the thermal electrons from the transmissive thin-film hot cathode to generate X-rays; and a grid disposed within the first housing between the beta radiation source and the transmissive thin-film hot cathode. The power module applies a pulse voltage between the beta radiation source and the grid, causing the beta particles to periodically pass through the grid and bombard the transmissive thin-film hot cathode. The present application can emit stable X-ray pulse signals that can be accurately captured and identified by detectors carried by spacecraft, meeting space positioning and navigation requirements.

The utility model discloses a hand -held formula's magnetothermal electron pulse physiotherapy instrument belongs to physiotherapy instrument technical field, including upper frame, middle frame, bottom frame and base, the periphery both sides symmetry of upper frame are fixed with handle frame, the handle frame is wrapped with handle rubber, be provided with the control knob of rotation installation with upper frame between handle frame, the bottom surface of bottom frame is provided with physiotherapy mechanism, through design a kind of integrated physiotherapy mechanism, two groups of electrode disc outside are connected into circuit board through electrode column and realize pulse physiotherapy, the center of inner bottom is fixed with permanent magnetic paste and realizes magnetotherapy, the periphery of permanent magnetic paste is wound with heating coil and realizes heat therapy, three kinds of physiotherapy components are unified package, unified access PCB control board control, is controlled by the external single control knob adjustment, integration into a whole, reduce various wire harness and accessory cooperation, more adapt to with whole body meridian do whole body movement and treat, patients can self -help operation and use.

The invention provides cathodoluminescent lamps with improved optical stability and extended lifetimes through advanced enclosure and electron emission configurations. A filament emits electrons via thermionic emission, which are accelerated by an anode toward a cathodoluminescent emitter to produce photons. The vacuum enclosure comprises glass, fused silica, and metal portions coupled with vacuum-compatible epoxy, with the metal providing thermal and electrical conduction. The lamp can include anode current monitoring and filament power control to stabilize emission. An electrically activated getter maintains vacuum conditions by chemically bonding contaminants and can be refreshed over time. The designs enable effective vacuum maintenance, stable operation, and long-term reliability suitable for commercial applications.

The application discloses a method for inhibiting thermionic emission based on TTM-MD simulation, which adjusts the energy distribution and delay time of double pulses to regulate the electron temperature, and obtains the maximum delay time introduced under the condition of meeting the processing requirements according to the relationship between the temperature rising time and the delay. The method can obtain the maximum delay introduced under the condition of meeting the processing requirements, reduces the electron temperature, and inhibits the thermionic emission.

The invention discloses a large-area-array hot electron cleaning device and a using method thereof. The large-area-array hot electron cleaning device comprises an equipment body, a base and a cathode emission plate. The equipment main body is arranged on the base; the cathode emission plate is accommodated in the equipment main body; comprising cooling mechanisms arranged in pairs and a plurality of heat-conducting fins, one end of the heat-conducting fin is in contact with the side wall of the cathode emission plate, and the other end of the heat-conducting fin extends out of the equipment main body; the cooling mechanism comprises a cooling box arranged outside the heat-conducting fins in a sleeving mode and self-adaptive adjusting mechanisms arranged in pairs. A plurality of heat-conducting fins and a cooling mechanism are arranged, one ends of the heat-conducting fins make contact with a cathode emission plate and conduct heat to the outside of an equipment body, the other ends of the heat-conducting fins extend out of the equipment body and make contact with the cooling mechanism, the cooling mechanism is matched with a fan through a spraying pipe, and cooling water is mixed in airflow formed by the fan; and the heat at one end of the heat-conducting fin can be taken away by liquid drop evaporation while blowing heat dissipation is carried out on one end of the heat-conducting fin extending out of the equipment main body.

The invention discloses a method for realizing invisibility of an ionospheric aircraft based on regulation and control of electron distribution of a tail region. The method comprises the following steps: firstly, calculating evolution time scales under different non-extensive parameters; the super-thermal electron energy and the particle flux in unit time are required to be injected according to different non-extensive parameters; controlling a radio frequency discharge plasma generator to generate plasmas corresponding to the non-extensive parameters; enabling electrons to enter an accelerating field area through a grid electric field, and directly discharging ions to a tail area of the aircraft without accelerating; the regulation and control duration under the condition of different non-extensive parameters is determined by the evolution time marks corresponding to the non-extensive parameters. According to the invention, high-energy electrons are randomly injected into the tail area of the aircraft to change the electron distribution of the tail area of the ionospheric aircraft so as to regulate and control the evolution law and the characteristic scale of the non-linear local cavities of the tail area which cannot be eliminated, so that the anti-stealth method for detecting the ionospheric stealth aircraft by monitoring the movement of the density cavities is invalid; therefore, the invisibility of the ionized layer invisibility aircraft is realized.

The invention relates to the technical field of preparation of high-purity metal materials, in particular to a method for preparing a high-purity vanadium cast ingot through electron beam two-step purification and the high-purity vanadium cast ingot. (2) first purification of electron beams; (3) removing low-melting-point impurities and inclusions; (4) adding and preheating a collecting system; (5) secondary electron beam purification; and (6) forming the high-purity vanadium cast ingot. The method comprises the following steps: firstly, removing low-melting-point and high-saturated vapor pressure elements such as Al, Fe and Cr by utilizing element saturated vapor pressure difference under the action of an electron beam with relatively low power, and separating inclusions Al2O3 and SiO2 in a water-cooled crucible by utilizing density difference between the inclusions and a melt; and then high-power electron beams are adopted to enable the vanadium element to be rapidly volatilized, a high-purity vanadium plate is obtained on a collecting plate, high-melting-point low-saturated-vapor-pressure metal impurities and residual inclusions are left in a water-cooled crucible, and the purity of the finally prepared high-purity vanadium cast ingot reaches 99.99% or above.

The application discloses a kind of float method ultra-thin photo-thermal electronic glass and preparation method thereof, belong to electronic glass technical field.Its technical scheme is: including the following mass percentage component: SiO2 50-60%, Al2O3 9-13%, B2O3 8-10%, CaO 4-6%, MgO 0.02-0.05%, SrO 5-8%, ZnO 0.2-0.6%, BaO 2-4%, NaF 3-5%, KBr 1-3%, SnO2 0.1-0.3%, Sb2O3 0.5-1%, La2O3 0.5-1%, Y2O3 0.5-1%, Cu 3-5%.The float method ultra-thin photo-thermal electronic glass prepared by the application has less apparent defect, and has excellent thermal performance, electrical performance, mechanical performance and chemical performance.

This invention discloses a near-infrared metasurface perfect absorber for thermionic photoelectric conversion. The absorber includes a silicon dioxide substrate, on which a rectangular array of chromium material is arranged. Four layers of cylinders are stacked on each rectangular unit. The four cylinders all have a radius R and a height H1. The materials of the four cylinders, from bottom to top, are silicon, magnesium fluoride, chromium, and gallium arsenide, respectively. The period P of the rectangular array is consistent with the side length of the rectangular unit. After parameter optimization, an average absorption of 0.923 is achieved in the wavelength range of 800nm ​​to 1800nm, and a maximum absorption of 0.991 is achieved at a wavelength of 1100nm.

The invention relates to the technical field of lithium ion battery positive electrode materials, in particular to a graphene-coated high-nickel positive electrode material based on oxygen vacancy and covalent interface synergy and a preparation method thereof, and the preparation method comprises the following steps: (1) oxygen vacancy regulation and control treatment; (2) preparing functionalized graphene; and (3) constructing and coating a composite material to obtain an NCM positive electrode material Gr-pAP-NCM of which the surface is coated with functionalized graphene, namely the graphene-coated high-nickel positive electrode material based on oxygen vacancy and covalent interface synergy. The composite structure of the graphene-coated high-nickel positive electrode material based on oxygen vacancy and covalent interface coordination prepared by the invention realizes strong interface bonding through chemical bond bridging and molecular scale, and realizes efficient coupling of a high-nickel ternary positive electrode material and a heat-conducting functional filler by cooperatively utilizing the oxygen vacancy to regulate and control an interface structure and hot electron transmission; the electrochemical cycle performance and the thermal management capability are synchronously broken through, so that the structural stability, the interface thermal management capability and the cycle reliability are improved, local heat accumulation is effectively inhibited, structural phase change and lattice oxygen loss caused by overheating are prevented, and an innovative solution is provided for improving the safety of a high-energy-density battery.

The present disclosure relates to a system which may have an electronic controller, an optical light source controlled by the electronic controller which generates a beam having an output power level, and a current measuring subsystem (CMS) electrically coupled to a conductive substrate (e.g., metal substrate (MS)) while a powder bed layer (PBL) is deposited on the MS. The CMS may be in communication with the electronic controller and detects a current flow as at least one of the MS or the PBL is heated when the beam is scanned over the PBL. The CMS generates a current flow signal in accordance with the detected current flow. The current flow signal is used by the electronic controller to determine when the temperature of at least one of the substrate or the PBL is at least one of above or below a desired temperature.

The present application relates to a chiral plasmonic photocatalyst, a manufacturing method therefor, and a hydrogen production method using the chiral plasmonic photocatalyst. The photocatalyst according to embodiments of the present application can induce a high hydrogen production reaction by emitting a circularly polarized laser, capable of strongly interacting with chiral plasmonic metal nanoparticles, to induce the generation of a chiral near field and aligned thermal electrons, which correspond to effects corresponding to chiral plasmonic characteristics.

The present disclosure proposes an improved heat resistant base for electronic equipment having transparency, heat resistance and mechanical strength and also having superior optical properties and quality, and thereby capable of replacing a transparent glass base. The present disclosure is accomplished by the heat resistant base for electronic equipment including a polyimide-based resin and a hollow particle, wherein a plurality of the hollow particles are dispersed and present in the polyimide-based resin, and the hollow particle has an average particle diameter of greater than or equal to 10 nm and less than or equal to 300 nm.

The invention discloses a waveguide integrated superconductive heat electronic bolometer, a preparation method thereof and a testing device, the waveguide integrated superconductive heat electronic bolometer comprises a silicon-based ridge waveguide used for transmitting terahertz signals; the terahertz coupler is prepared on the upper surface of the silicon-based ridge waveguide, the terahertz coupler is of a metal coupling structure capable of being coupled with TM-mode terahertz waves, and the terahertz coupler is used for coupling out energy of TM-mode terahertz signals transmitted in the silicon-based ridge waveguide and converging the energy to the central area of the terahertz signals to form local enhancement of an electric field; and the superconductive heat electronic bolometer is fixed on the silicon-based ridge waveguide through a chip mounting process, and a heat sensing part of the superconductive heat electronic bolometer is accurately positioned in a central area of the terahertz coupler and is used for absorbing converged terahertz energy. According to the invention, a high-performance superconducting detector is combined with a silicon-based terahertz device, the space coupling alignment problem of a terahertz frequency band and the process compatibility problem of heterogeneous materials are solved, and the terahertz terahertz detector has the advantages of small size, high coupling efficiency, easiness in large-scale on-chip integration, good polarization selectivity and the like.

This invention discloses an immersion-type rapid heat dissipation device for core heat-generating electronic components of charging piles, relating to the field of heat dissipation technology. The device includes a container with an opening on one side. At least two chambers are formed vertically from one side to the other on the container. One chamber is adjacent to the non-open side of the container, and the other chamber is located on the open side, allowing communication with the outside. The two chambers are interconnected. Two plates are movably disposed based on the opening on the container. This immersion-type rapid heat dissipation device for core heat-generating electronic components of charging piles, on the one hand, minimizes the adverse effects of external factors contaminating the coolant in the heat dissipation space during the disassembly and assembly of the heat-generating components. On the other hand, for heat-generating components such as immersion liquid-cooled devices, this invention provides a standardized drying process window, making the installation process more standardized and enabling on-site maintenance of immersion liquid-cooled equipment.

The invention provides a thermal electron energy loss simulation calculation method based on balanced pulses and application thereof, and the calculation method comprises the following steps: according to set laser parameters, based on formulas (1) and (2), employing LAMMPS software to calculate and obtain a Te-t relationship; wherein S is a function of S (z, t) and is obtained according to a formula (3); according to the relation of Te-t, the instantaneous thermal electron emission current density J (t) is calculated by adopting a formula (4); a formula (5) is adopted to calculate the thermal electron emission energy flux density qem (t); time integration is carried out on qem (t), and energy loss caused by hot electron emission in the double-pulse process is obtained through a formula (6). According to the technical scheme, energy loss caused by hot electron emission in the double-pulse process can be calculated according to the laser parameters, and therefore sintering quality is improved while hot electron emission is restrained by adjusting energy distribution and delay time of the double pulses.

This invention belongs to the field of optoelectronics technology, specifically relating to a narrowband near-infrared thermionic photodetector, its fabrication method, and its applications. A top-layer metal grating absorbs near-infrared light, generating thermionic electrons that are injected into an ultrathin silicon film, where they are collected by the bottom electrode to form a photocurrent. The top-layer metal grating forms a Schottky contact with the silicon thin film, enabling near-infrared light detection below the silicon energy bandgap. The small thickness of the metal grating increases photoemission within the metal, providing more opportunities for thermionic emission over the Schottky barrier, further improving the photodetector efficiency. Simultaneously, by adjusting the width of the metal grating, the resonant wavelength of the detector can be changed, achieving a wavelength-tunable near-infrared photodetector. Due to the thinness of silicon, applying a small bias voltage can induce a strong electric field in the silicon film, triggering an avalanche multiplication effect. This invention broadens the operating wavelength range of traditional silicon-based photodetectors and achieves tunable peak responsivity, showing great promise for applications in silicon-based optoelectronic devices.

Procedure, comprehensive: Bonding a photonics unit to an interposer; Bonding a package component to the interposer, wherein the package component has a device die; Encapsulation of the package component and the photonics unit in an encapsulation material; Attaching a thermoelectronic cooler to the photonics unit; and Attaching a metal cover to the package component.

A device may include a thermal interface configured to receive heat from a heat-generating electronic component. A device may include an electrically conductive working fluid in contact with the thermal interface to receive heat from the thermal interface. A device may include a magnetic pump configured to apply a magnetic field and an electrical current to the electrically conductive working fluid. A device may include a heat exchanger in thermal communication with the electrically conductive working fluid to exhaust heat from the electrically conductive working fluid.

To provide an ion source and an accelerator, as well as a method for generating ions and accelerating those ions in the ion source.SOLUTION: A nuclear reaction generation device includes a chamber configured to contain gas and include a target. The nuclear reaction generation device also includes a filament provided within the chamber and a voltage source configured to apply a first positive voltage to the filament relative to the chamber. The first positive voltage is configured to heat the filament to a temperature that causes thermionic emission and generates multiple thermions. The multiple thermions are configured to ionize the gas and generate positive ions in the chamber. The target is configured such that nuclear reactions occur when the positive ions interact with the target.SELECTED DRAWING: Figure 1

The present invention belongs to the field of SERS detection technology, and specifically relates to a surface enhanced Raman probe based on ZIF-8 coated surface plasmon tungsten oxide and its preparation method and application. The present invention uses a solvothermal method to prepare oxygen vacancy doped plasmon WO 3‑x Nanowires, and then ZIF-8 coated WO prepared by electrostatic self-assembly 3‑x The composite structure is used as a Raman probe for the detection of 4'-mercaptobiphenyl nitrile molecules. On the one hand, it fully utilizes the molecular adsorption capacity of MOF to effectively enrich the target molecules, and at the same time, it can effectively enrich the target molecules through the plasmon WO 3‑x The strong local field significantly amplifies the Raman signal of the target molecule, thereby achieving high-sensitivity detection of the target molecule; secondly, the structural characteristics of MOF are used to form an electron transmission channel to promote WO 3‑x Thermal electron transfer, followed by efficient catalytic degradation of adsorbed molecules, enables green self-cleaning and reuse of the probe.

This invention discloses a method, system, electronic device, and medium for restoring scanning electron microscope (SEM) images at high temperatures, relating to the field of image restoration technology. The method includes: acquiring an image of an SEM sample to be restored; extracting high-frequency and low-frequency components from the SEM sample image and determining the image's sharpness based on these components; acquiring the thermionic signal voltage value corresponding to the SEM sample image when the sharpness is below a set threshold; determining the multiplier for increasing high-frequency components and decreasing low-frequency components in a filtering algorithm based on a target relationship and the thermionic signal voltage value; the target relationship being the relationship between the thermionic signal voltage value and the image signal-to-noise ratio (SNR); and restoring the SEM sample image based on the multiplier for increasing high-frequency components and decreasing low-frequency components in the filtering algorithm. This invention enables the restoration of SEM images at high temperatures and improves the SNR of SEM images.

The present invention relates to the specific ways in which the material C12A7:e- ("electride") is used as an electrode and more specifically as a cathode and more specifically as an electron-emitting cathode in all applications capable of using this property, such as electron-emitting cathodes for ion thrusters and neutralizers in aerospace applications, cathodes and electrodes in general that interact with ions, whether in a gaseous (plasma) or liquid (electrolysis, water treatment, hydrogen generation) or a combination of both liquid and gaseous (hydrogen fuel cell) as well as active catalysts (polarized) for the synthesis and decomposition of certain compounds (specifically ammonia). The invention focuses on maximizing the material's properties as a cathode and its stable operation under different conditions, using specific pulsed polarization techniques that are precisely adapted to the nature of the material.