A5100659384- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Mechanical and Optical Resonators
- Advanced materials and composites
- Aluminum Alloys Composites Properties
- Geophysics and Sensor Technology
- Advanced MEMS and NEMS Technologies
- Advanced Fiber Laser Technologies
- Advanced ceramic materials synthesis
- Optical Systems and Laser Technology
- Power Systems and Renewable Energy
- Magneto-Optical Properties and Applications
- Stochastic Gradient Optimization Techniques
- Smart Grid Energy Management
- Topological Materials and Phenomena
- Machine Learning and ELM
- Titanium Alloys Microstructure and Properties
- Stock Market Forecasting Methods
- Cyclone Separators and Fluid Dynamics
- High-Voltage Power Transmission Systems
- Advanced Battery Technologies Research
- Fault Detection and Control Systems
- Domain Adaptation and Few-Shot Learning
- Optical measurement and interference techniques
- Quantum Mechanics and Non-Hermitian Physics
North University of China
2024
Dalian University of Technology
2024
Salesforce (United States)
2024
China Aerospace Science and Technology Corporation
2023
University of Chinese Academy of Sciences
2023
Changchun Institute of Optics, Fine Mechanics and Physics
2023
Chinese Academy of Sciences
2023
South China University of Technology
2023
Jiangsu University
2021
He University
2013
The parity-time (PT) -symmetric gyroscope system is able to solve the problem of achieving high sensitivity in a reduced footprint for optical gyroscopes by manipulating physical properties exceptional points (EP). Nevertheless, its tuning intricate and hard read, which hinders practical implementation. On contrary, real frequency splitting simple anti-parity-time(APT)-symmetric represents viable alternative conventional PT-symmetric gyroscope. However, due fabrication process required...
Abstract It is found that when the parity–time symmetry phenomenon introduced into resonant optical gyro system and it works near exceptional point, sensitivity can in theory be significantly amplified at low angular rate. However, fact, point easily disturbed by external environmental variables, which means depends on harsh experimental environment strong control ability, so difficult to move towards practical application. Here, we propose a new rate sensor structure based surface, has...
Backscatter noise is a key limiting factor in the performance of resonant fiber optic gyroscopes. To enhance accuracy gyroscopes, gyroscope system based on sideband locking technology proposed. In this scheme, two tunable semiconductor lasers independently provide clockwise and counterclockwise optical paths. An phase-locked loop employed to achieve independent subharmonic phase output lights, with their frequency difference equaling one free spectral range (FSR). By applying sinusoidal...
The resonant micro optical gyro (RMOG) is considered to be a unique type of gyroscope with great application prospects because its high precision and miniaturization. However, RMOG systems are generally required have the narrow full width at half maximum (FWHM) resonance spectrum. dynamic range open-loop detection method based on FWHM demodulation output correspondingly narrowed. Therefore, we propose triple closed-loop control system optoelectronic hybrid feedback in this work. First,...
Joint units processed by milling and grinding, which varied in surface processing marks, were used solid-state bonding experiments to study how these marks affect the healing behavior of CNTs/Al composite interfaces. The results showed that machining significantly impact interface healing, as evidenced shapes sizes oxides after bonding, magnitude forces displacements transmitted from macroscopic deformations microscopic process involves gap closure, oxide layer fracturing, fresh metal...
Flexible and broadband microwave-absorbing structures have attracted significant attention in electromagnetic (EM) science. Although previous studies demonstrated the potential of flexible using thin dielectric substrates or materials, need for remains largely unmet, especially those that can be stretched to adapt complex surfaces. In this article, a novel design concept stretchable meta-substrate comprising rigid pyramidal soft hinges is proposed, which operates as substrate structural...
When monitoring the power network, it needs multiple channels to collect data synchronously, common method requires solve synchronous sample problem, and analog circuit transmission are complex. So paper designs three phase network signal by new A/D conversion chip with character, can ensure synchronism of collection, decrease hardware cost. It also system logic resources in FPGA. For collected data, FFT(Fast Fourier Transform) IP core is used process it, result FFT module compared that...
This article aims to address the issue of slow zero-point oscillation during start-up process a gyroscope, which significantly affects weapon's rapid response capability. The study examines impact digital temperature control circuit PWM wave amplitude and frequency on startup time. During practical testing it was discovered that changes in duty cycle can cause unstable data output from gyroscope first few minutes start-up, ultimately resulting longer times. When investigating time, first,...
Attention layers -- which map a sequence of inputs to outputs are core building blocks the Transformer architecture has achieved significant breakthroughs in modern artificial intelligence. This paper presents rigorous theoretical study on learning and generalization single multi-head attention layer, with key vectors separate query vector as input. We consider random feature setting where layer large number heads, randomly sampled frozen matrices, trainable value matrices. show that such...
Study on ventilation
Achieving ultrahigh energy density for triboelectric nanogenerator