6 results about "Electrical interaction" patented technology

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 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.