5results about How to "Strong coupling" patented technology

The invention, which relates to the technical field of the filter, discloses an interdigital tuning-free superconducting filter comprising a plurality of resonators arranged side by side along a first direction. Each resonator comprises a capacitance coupling structure and a first spot welding plate, the capacitance coupling structure comprises a superconducting block, a second spot welding plate and an interdigital capacitor arranged between the superconducting block and the second spot welding plate, and the first spot welding plate is arranged on the side, away from the superconducting block, of the second spot welding plate in the second direction and is in coupling connection with the superconducting block; and the first spot welding plate is also electrically connected with the second spot welding plate. The interdigital tuning-free superconducting filter provided by the invention does not need to be tuned through a tuning screw, can meet the index requirement after being manufactured, and saves time, manpower and material resources.

The utility model discloses a wireless charging device, which comprises a receiving coil, a receiving coil shell, a transmitting coil, a transmitting coil shell and a connecting piece, the receiving coil is arranged in the receiving coil shell; the transmitting coil is arranged in the transmitting coil shell; when the transmitting coil shell is moved to the receiving coil shell and the transmitting coil shell and the receiving coil shell are aligned to a preset position through the connecting piece, the transmitting coil and the receiving coil directly face each other and are in a matched state, and the gap and the offset between the transmitting coil and the receiving coil are smaller than or equal to a set threshold value. According to the utility model, the coil dislocation during charging can be reduced, the coil area can be reduced, the requirement for foreign matter detection can be reduced, and electromagnetic radiation can be reduced, so that the charging safety is ensured while the charging efficiency is ensured, and the manufacturing cost of the charging device is reduced.

The application relates to the technical field of mobile robots and discloses a complex under-actuated robot full-dynamics decoupling servo control system and method, wherein the control system comprises a calibration target module, a feature sensing module, a data processing module, a position control module and a posture control module; the control method comprises the following steps: energy equations and potential energy equations are established by analyzing the force conditions of each moving component of a robot body; a robot dynamics model is established by substituting a Lagrange function into a Lagrange equation; a conversion equation representing the conversion relationship between robot control variables and self-state variables is established by analyzing the mapping relationship between the robot control variables and the self-state variables; and a control model is obtained based on the conversion equation, a control algorithm is designed, and a control signal is generated. On the basis of ensuring that the robot self-model can fully reflect the dynamics characteristics of the robot, the posture and position dynamics of the robot are decoupled, the accuracy and stability of the body control are improved, and the maneuverability and sensitivity of the robot are effectively exerted.

The present invention discloses an ultra-wideband 3dB directional coupler at low temperature, which belongs to the technical field of passive microwave devices. It includes dielectric plates I and II of different thicknesses and a stripline, and the stripline is completely surrounded by the dielectric plates. It also includes 5 sections of coupled transmission lines, each of which has an equal line width and is bilaterally symmetrical in the overall structure. The coupler is axisymmetric in the plane. In the selection of dielectric plates, the upper and lower dielectric plates are the same, which are dielectric plates I, and the dielectric substrate of the middle layer is dielectric plate II. In addition, the specific dielectric constant of the dielectric plate and the thickness requirements of the stripline are also set. The coupler can work normally in an extremely low ambient temperature of 24K, that is, a Celsius temperature of ‑249°C, and its working parameter indicators are similar to those in a room temperature environment.

This invention discloses a high thermal conductivity and electromagnetic shielding polyimide coating and its preparation method, belonging to the field of polyimide coating technology. The coating comprises the following raw materials in parts by weight: 32 parts of diamine monomer, 33 parts of dianhydride monomer, 582 parts of organic solvent, and 3.4-11.5 parts of nitrogen-doped helical carbon nanotube-supported carbon nanofibers. The preparation method includes the following steps: ultrasonically dispersing nitrogen-doped helical carbon nanotube-supported carbon nanofibers in an organic solvent; then, under nitrogen protection and an ice-water bath condition, dissolving the diamine monomer in the dispersion; and then adding the dianhydride monomer to carry out a polycondensation reaction to obtain a high thermal conductivity and electromagnetic shielding polyimide coating. This invention, through an integrated design of "composition-structure-interface," constructs an efficient and stable three-dimensional multifunctional network within the polyimide matrix, achieving a synergistic improvement in the coating's electromagnetic shielding and thermal conductivity performance, providing an ideal material solution for the field of high-end electronic packaging and protection.