8results about How to "Avoid shielding" patented technology

This utility model relates to a surge arrester shielding device, including an insulating cover. The insulating cover comprises two bodies, which are combined to form a platform shape. The interior of the insulating cover is hollow, and both the top and bottom ends are missing. A connecting plate is provided on the outer side of each of the two bodies, and the two connecting plates are hinged together by a hinge shaft. A locking assembly is provided on the outer side of the two bodies, opposite to the connecting plate. This surge arrester shielding device uses a platform-shaped shielding cover with different opening diameters at the top and bottom. It can fit onto the outer side of surge arrester flanges of different sizes, eliminating the need for custom-made insulating covers for different sizes of surge arresters. When the flange diameter varies within a certain range, the platform-shaped conical shielding cover can adaptively wrap by adjusting its height. This avoids the problems of traditional cylindrical insulating covers being too loose and causing leakage, or too tight and difficult to install, which are caused by fixed dimensions. It significantly reduces the types of spare parts and lowers equipment management costs.

The utility model discloses a protective Bluetooth on-machine measuring head, and particularly relates to the field of on-machine measuring heads, which comprises a machine head, a transparent shell positioned below the machine head, a probe seat positioned at the bottom of the transparent shell and a measuring head rod piece mounted at the bottom end of the probe seat, a base extending into the transparent shell is installed at the bottom end of the machine head, a Bluetooth module is installed on the outer wall of the base, the machine head, the transparent shell and the probe base are sleeved with a protection piece capable of moving in a lifting mode, and an upper limiting piece for adsorbing the top end of the protection piece is installed at the edge of the top end of the machine head. And a lower limiting piece for adsorbing the bottom end of the protection piece is arranged on the outer side of the probe seat. According to the utility model, the telescopic tube and the rubber magnetic ring form a flexible barrier to absorb the impact force of chippings and prevent the transparent shell from being scratched or broken, the transparent shell is made of a low-dielectric-constant material, the signal attenuation is small, the transmission efficiency of the Bluetooth module is ensured, and the rubber magnetic ring and the plastic telescopic tube avoid the metal shielding effect and maintain the signal integrity.

The invention discloses a method for improving hole concentration in a p-type compound semiconductor. Comprising the following steps: in the growth process of a p-type doped compound semiconductor epitaxial layer, co-doping and introducing a certain concentration of compensating impurity elements used for inhibiting intrinsic donor type point defects in a compound semiconductor; after growth of the p-type doped compound semiconductor epitaxial layer is completed, annealing treatment is carried out in a protective atmosphere containing non-metallic elements in the compound semiconductor; wherein the hole concentration of the epitaxial layer is improved through the combined action of the introduction of the compensating impurity element and the annealing treatment. According to the method disclosed by the invention, through a synergistic process of low-atomic-number same-family element doping and nitrogen-containing atmosphere annealing, synchronous improvement of the bulk material and the surface hole concentration is realized.

The invention belongs to the technical field of organ chips and biological manufacturing, and relates to a vascularized multi-tissue interaction organ chip based on a phase change sacrificial structure and a construction method and application thereof. According to the invention, collaborative construction of multiple tissue chambers and a blood vessel-parenchymal tissue biological interface is realized through a continuous phase change process of the sacrificial hydrogel material; according to the organ chip disclosed by the invention, an extra diaphragm or complex processing is not needed, the continuity and the bionic property of a multi-tissue interaction interface are maintained, the simulation of signal exchange and a pathological process among multiple tissues in a body is facilitated, and the organ chip has higher bionic property and applicability in applications such as complex physiological interaction modeling, drug evaluation and disease mechanism research.

This utility model discloses a metal-structured card device integrating near-field communication (NFC) technology. It includes a first metal plate unit and a second metal plate unit bonded together. An ultra-thin NFC module is embedded within the interface area between the first and second metal plate units. The NFC module includes a thin substrate, an antenna etched onto the substrate, a chip body, and an absorbing material for interference suppression. The absorbing material is fixed to the substrate by an adhesive. This utility model embeds an ultra-thin NFC module between the first and second metal plate units, enabling near-field communication for the metal card, overcoming the metal shielding effect, and improving signal stability and sensitivity. The ultra-thin design ensures mechanical strength without increasing thickness, the etched antenna enhances signal transmission accuracy, and the absorbing material reduces metal interference and improves communication reliability. The absorbing material is fixed by the adhesive, ensuring stability, simplifying the manufacturing process, and reducing costs.

The invention provides an inner wall embedded type multi-dimensional state monitoring system for a GIS transformer. Comprising a transformer shell integrated with a comprehensive information management system, a temperature difference heating module for providing direct current for a multi-source synthesis energy management module, a piezoelectric module for rectifying, boosting and storing energy through an energy management system of the multi-source synthesis energy management module, and an ultrasonic partial discharge detection sensor deposited on the inner wall of the transformer shell, the temperature sensor and the SF6 degradation gas metal oxide semiconductor sensor are used for acquiring signals, and the main control module is used for processing the acquired signals. According to the invention, synchronous acquisition of electric-acoustic-thermal-chemical four-dimensional information in the GIS transformer is realized, all the sensors are deposited on the inner wall of the transformer to improve the accuracy and confidence of diagnosis, and the vibration-thermal energy comprehensive energy supply system solves the problem of stable energy supply of the internal sensors. And a feasible scheme is provided for full-life-cycle intelligent monitoring of the equipment.

The utility model discloses a battery box structure and battery package, battery box structure includes: box, protection cover and antenna board, and the box is equipped with assembly opening, protection cover is equipped with the rim buckle connection of assembly opening with the box, and the cover encapsulation assembly opening, and the material of protection cover is plastic, and the antenna board is connected with protection cover. First, protection cover adopts plastic material, avoids the shielding and interference of metal to antenna board signal, and has promoted the signal quality and communication stability of system. Secondly, protection cover buckle connection with the box makes the sealing property of assembly opening improve greatly, prevents dust and water vapor and other external factors from entering the box effectively, thereby has strengthened the security and service life of battery box internal element. In addition, the buckle type connection mode is convenient for the dismounting of protection cover and antenna board, provides great convenience for the subsequent maintenance, overhaul and antenna board replacement, and has improved the maintainability of product.

The invention discloses an in-situ attenuated total reflection Fourier transform infrared spectrum detection method based on microwave heating, and belongs to the technical field of spectrum detection and analysis. According to the method, a design strategy that microwave heating and an infrared spectrum system are arranged separately is adopted, and a high-refractive-index infrared reflection crystal is used as a unique coupling detection area, so that real-time infrared spectrum monitoring of a reaction system is realized. The detection method disclosed by the invention is particularly suitable for in-situ monitoring of hydrogenation, cracking and conversion reaction of an oxygen-containing or unsaturated substituent compound on a furan ring or a benzene ring, and is compatible with microwave and catalytic reaction mechanism research, material interface reaction analysis and spectroscopic characterization of a biomass derivative conversion process; the method has the advantages of being accurate in temperature control, high in response speed, high in signal stability and good in data repeatability, dynamic spectrum tracking can be conducted on a complex reaction system, a traditional external heating detection mode is compatible, and the space matching degree and the time resolution of microwave field in-situ characterization are remarkably improved.