5results about How to "Suppress external interference" patented technology

The application belongs to the field of integrated circuits, and specifically provides a low-power consumption enhanced reading type 11T CNFET SRAM cell circuit to solve the problems of slow speed, low stability, high power consumption and the like in the prior art; the application comprises N-type carbon nanometer field effect transistors MN1-MN9 and P-type carbon nanometer field effect transistors MP1-2, on the basis of a conventional 6T SRAM cell circuit, a dynamic load structure composed of transistors MN7, MN8 and MN9, and a high-resistance differential readout circuit composed of transistors MN3, MN4, MN5 and MN6; the adoption of P-type transistors realizes a bistable latch structure to reduce holding and writing power consumption, eliminate path competition phenomena caused by data flipping during writing, and improve writing speed; during reading, a resistive load tube is turned on to eliminate charge accumulation and ensure data storage stability; the high-resistance differential readout circuit reduces voltage disturbance of a storage node caused by bit line load; meanwhile, the differential writing / reading circuit can suppress common-mode noise and external interference on the bit line, reduce the probability of error sampling, and enhance overall anti-interference capability.

The invention discloses a vibration self-sensing device based on a piezoelectric effect and a working method, relates to the technical field of vibration isolation, and solves the problems that a traditional control system is low in integration level, large in size and weight, serious in sensing and driving signal coupling interference and difficult to realize high-frequency response closed-loop control. The lower end of a piezoelectric actuator is connected with a connecting copper block, and a piezoelectric sensor is arranged in a groove in the bottom of the connecting copper block; the piezoelectric actuator comprises an actuator rotor, an actuator shell and a piezoelectric plate pile, the actuator shell is of a cylindrical structure, the actuator rotor and the piezoelectric plate pile are arranged in the actuator shell, and the piezoelectric plate pile is arranged below the actuator rotor and drives the actuator rotor to move up and down; and the piezoelectric patch stack is in signal connection with the piezoelectric sensor. According to the invention, the piezoelectric sensor and the piezoelectric actuator are deeply fused, so that a single piezoelectric element has dual functions of execution and sensing. When the actuator applies acting force, the sensor can synchronously detect micro-deformation or counter-acting force of the system in situ, and vibration isolation is better carried out.

The invention relates to the technical field of household beauty and skincare electronic equipment, and discloses a waterproof beauty device modularization system based on magnetic attraction connection and anti-skid design. Comprising a main body shell, a battery arranged in the main body shell, a mainboard PCB and a contact head assembly located at the front end of the main body shell, and the main body shell comprises a main body upper shell and a main body lower shell; the main body lower shell, the head lining plate, the head lower shell and the main body upper shell define a closed cavity to accommodate a battery and a mainboard PCB, and the main body lower shell, the head lining plate, the head lower shell and the main body upper shell are assembled by adopting a buckle structure; a magnetic attraction alignment structure is adopted between the front end of the main body shell and the contact head assembly; the surface of the main body shell is provided with silica gel anti-skid textures, and a conductive shielding layer is embedded into the silica gel anti-skid textures; the contact head assembly is rotatably arranged relative to the main body shell, the contact head assembly adopts a modular design, and the contact head assembly adopting the modular design comprises illumination heads with different wavelengths and customized electrode tips.

The application provides a robust reliable H∞ control method for offshore steel jacket platform models, first establishes a mathematical model of OSJPs, and considers the first main vibration mode. Then, a controller based on memory SDC is designed, which can realize effective control by reducing data transmission amount under the condition that the state of the continuous time system is only available at the sampling time. In addition, a back loop function method, an integral inequality based on a free matrix (FMB) and a linear matrix inequality (LMI) technology are introduced to obtain sufficient conditions about the uncertain offshore platform system, so that the stabilization of the OSJPs is solved, and the reliable SDC design with disturbance suppression level is realized. The simulation result of the application shows that the proposed method can not only effectively reduce the vibration of the OSJPs, but also maintain the stability of the system in the case of model uncertainty and actuator failure, proving the effectiveness and importance of the proposed control strategy.

This invention relates to the field of analytical detection technology, and discloses a high-throughput rapid detection platform for contaminants in food, its construction method, and its applications. The high-throughput rapid detection platform is constructed by immobilizing universally applicable biorecognition sensing probes targeting contaminants on a 96-well plate to achieve high-throughput rapid detection. The biorecognition sensing probes include a Pt NP-modified signal transduction probe (Bond) and an arm-containing aptamer that specifically recognizes the contaminants. This invention constructs an aptamer sensor by modifying Pt NPs onto a triple-helix molecular switch signal transduction probe. Simultaneously, utilizing its peroxidase mimic activity and fluorescence quenching capability, the activity of Pt NPs is modulated via the triple-helix molecular switch, developing a universal dual-mode aptamer sensing platform. This platform retains the inherent advantages of each signal mode while supporting real-time cross-validation, helping to reduce systematic errors and suppress external interference, effectively reducing false positive and false negative rates.