10 results about "Electrical interaction" patented technology

The invention relates to a float-zone device which is designed to produce, during a float-zone process, a monocrystalline rod from a polycrystalline rod by successively melting the polycrystalline rod in zones along the vertical direction thereof using an inductive heating process carried out by continuously introducing thermal power via a coil unit (5) of the float-zone device, said coil unit moving along the vertical direction of the polycrystalline rod and surrounding the polycrystalline rod in spaced relation thereto, wherein during the float-zone process, the current thermal power originates from the current active power of a transmission unit (4), which comprises a capacitor (1), of the float-zone device, said transmission unit electrically interacting with the coil unit (5). The capacitor (3) can be adjusted and is designed to keep the frequency of the transmission unit (4) set to a specifiable and substantially constant value during the float-zone process.

The embodiments of the present invention provide a dual-passband transversely excited bulk acoustic wave resonator, a manufacturing method thereof, and a filter, wherein the resonator comprises a piezoelectric layer, an electrode layer, and a heterogeneous layer; the material of the heterogeneous layer is different from that of the piezoelectric layer; the electrode layer and the heterogeneous layer are located on two opposite sides of the piezoelectric layer in the thickness direction; the electrode layer comprises an interdigitated electrode and a block electrode, and the overlapping region of the interdigitated electrode and the piezoelectric layer forms an active region; the projections of the heterogeneous layer and the active region in the thickness direction completely overlap; the technical solution of the present invention, by adding a heterogeneous layer under the piezoelectric layer, can change the stress and electric field distribution in the thickness direction of the resonator, so that the even-order modal mechanical-electric interaction energy of the resonator is not zero, thereby solving the problem that the traditional resonator can only excite a single resonant mode, and can simultaneously excite the A2 and A3 resonant modes, which is applied to the filter and is conducive to the miniaturization and high integration of the equipment.

A reconfigurable metasurface device that leverages the interaction of phonon modes and a charge carrier distribution in a thin film semiconductor / piezoelectric film stack via the acoustoelectric interaction is disclosed. A surface acoustic wave (SAW) is launched into the piezoelectric layer. The SAW propagates through the piezoelectric layer, where the resulting strain wave induces a corresponding propagating electric field. This electric field capacitively couples to the thin film semiconductor, where it electrostatically induces periodic modulations of the charge carriers. The charge carrier distribution in the thin film semiconductor will form ribbons of charge carriers following the constant phase fronts of a sufficiently large amplitude SAW. By controlling the charge carrier patterning one can modulate the coupling to the plasmonic modes in the thin film semiconductor. By controlling the charge carrier patterning via the power and wavelength of the SAW, a reconfigurable metasurface results.

The invention relates to a personalized diet rapid prototyping method based on double-food-material high-density charged adsorption, and belongs to the technical field of food processing and equipment manufacturing. The mechanisms and effects of high-voltage electrostatic field soft food material polarization charging, high-voltage electrostatic atomization liquid food material micro-nano-scale high-density charging, double-food-material and double-nozzle 3D printing, electrostatic interaction coagulation accelerating and coagulation increasing and the like are utilized, double food materials containing positively charged component food materials and negatively charged component food materials are adopted, and in the double-material and double-nozzle 3D printing process, the double-material and double-nozzle 3D printing process is achieved; through the high-voltage electrostatic field with opposite polarities of the double food materials and the high-voltage electrostatic atomization charge treatment, the electrostatic interaction between the double food materials is enhanced, the interlayer bonding strength of a printed product is improved, and the structural supporting force of the printed product is improved. According to the invention, the problems of easy collapse, low precision, low efficiency, limited application scene and scale and the like caused by poor support performance of a personalized diet rapid prototyping structure are solved, efficient and high-quality creation of personalized diet rapid prototyping products is realized, and industrialized application of personalized diet rapid prototyping is accelerated.

The utility model provides a debugging tool for a track insulation measuring instrument, which relates to the technical field of track traffic safety detection and comprises an insulating shell and a band switch, and a plurality of resistors with different resistance values are welded on the band switch and are used for realizing quick access of different resistance values by shifting gears; the signal binding post, the voltage binding post, the current binding post and the steel rail binding post are used for realizing electrical connection with a track insulation measuring instrument and measured equipment, the band switch forms a switchable impedance module through a multi-resistance resistor fixed by welding, and a corresponding resistor is triggered to be connected into a measuring loop when a gear is rotated; the signal binding post, the voltage binding post, the current binding post and the steel rail binding post serve as electrical interfaces and are communicated with a signal source, a measuring circuit and a tested track respectively, and a complete testing link containing excitation signal input and voltage and current acquisition is constructed. The insulating shell seals the elements and connecting lines, internal and external electrical interaction is blocked through the insulation characteristic of materials, and operation safety is ensured.

Provided herein are programmable intelligent surfaces (PIS) for transmitting power and / or signals to a device positioned on or proximate the surface including at least one resonant unit including a power distribution layer having at least one transmitter coil configured to be energized by a power source and generate an electromagnetic field sized to electrically interact with at least one meta-cell coil of a meta-resonance layer, and the meta-resonance layer extending over the power distribution layer and comprising an array of configurable meta-cells, each including at least one of the meta-cell coils configured to selectively amplify, block, modify, or pass unchanged the electromagnetic field generated by the transmitter coil.

The utility model discloses an electrode device and a hair curler, and relates to the technical field of hairdressing equipment, and the electrode device comprises a connecting shaft, a plurality of electrodes and an insulating check ring, wherein the connecting shaft is used for mounting an electrode; the plurality of electrodes are sleeved on the connecting shaft, and the plurality of electrodes are sequentially arranged along the axial direction of the connecting shaft, and the electrode sleeves the periphery of the extension part. Under the condition that the axial dimension of the electrode device is not prolonged, the distance between two adjacent electrodes is prolonged, the electric reaction between two adjacent electrodes can be effectively avoided, and the occupied space of the electrode device is reduced.

The invention belongs to the technical field of electromagnetic wave absorbing materials, and relates to a wave-absorbing composite material MXene / MnO2 and a preparation method thereof, and few layers of MXene and columnar MnO2 are compounded through an electrostatic self-assembly method; the minimum value of the reflection loss of the composite material is-53.57 dB, and the maximum value of the effective absorption bandwidth is 4.8 GHz; the preparation method comprises the following steps: preparing few-layer MXene, preparing columnar MnO2, modifying the columnar MnO2 to enable the surface of the columnar MnO2 to be positively charged, titrating a positively charged MnO2 solution into a negatively charged few-layer MXene solution, and combining the MnO2 solution and the negatively charged few-layer MXene solution by utilizing electrostatic interaction; according to the method, the hydrothermal reaction time is accurately controlled, so that the morphological characteristics of MnO2 can be effectively regulated and controlled, and the microstructure and performance of the composite material are remarkably influenced.

The invention discloses an energy management system and method of energy feedback type electromechanical equipment, a storage medium and a computer program product, and relates to the technical field of elevators. The operation information at least comprises electromechanical equipment information, battery information, electrical interaction information and node internal environment information; the operation information is input into an S scheduling energy efficiency model, a scheduling control instruction set output by the S scheduling energy efficiency model is obtained, and the S scheduling energy efficiency model takes the maximum scheduling energy efficiency as a target; and controlling the operation of the energy management node according to the scheduling control instruction set. According to the invention, the scheduling energy efficiency is maximized.

The invention belongs to the field of electrical design, and particularly relates to an electrical design method based on a system model, which comprises the following steps of: 1, analyzing an input demand of an electrical system; 2, constructing an internal information interaction model of the electrical system; 3, constructing an internal electrical interaction model of the electrical system; 4, performing physical implementation based on the electrical interaction model in the electrical system to obtain an electrical interaction design result; and 5, returning an electrical interaction design result to the electrical interaction model in the electrical system. According to the method, the problems of inconsistent design requirements, difficulty in tracing, lagging of electrical design verification and the like in the development process are solved, the reliability of electrical design is improved, and cost reduction and benefit increase of product development are realized.