A5033097024- Advanced Fiber Optic Sensors
- Vibration and Dynamic Analysis
- Geophysics and Sensor Technology
- Hydraulic and Pneumatic Systems
- Dynamics and Control of Mechanical Systems
- Structural Response to Dynamic Loads
- Magnetic Bearings and Levitation Dynamics
- Spectroscopy and Laser Applications
- Atmospheric and Environmental Gas Dynamics
- Structural Health Monitoring Techniques
- Vehicle Dynamics and Control Systems
- BIM and Construction Integration
- Fault Detection and Control Systems
- Underwater Vehicles and Communication Systems
- Seismic Imaging and Inversion Techniques
- Robotic Mechanisms and Dynamics
- Plasma and Flow Control in Aerodynamics
- Underwater Acoustics Research
- Machine Fault Diagnosis Techniques
- Magnetic and Electromagnetic Effects
- Optical Wireless Communication Technologies
- Combustion and flame dynamics
- Engineering Diagnostics and Reliability
- Mechanical and Optical Resonators
- Mechanical Failure Analysis and Simulation
Wuhan Ship Development & Design Institute
2021
University of Southampton
1995
A high-sensitivity low-frequency fiber optic hydrophone based on weak value amplification (WVA) is proposed and demonstrated. polarization maintaining (PM) with a length of 0.8 m wound around polycarbonate (PC) tube used as the sensing element. Theoretical analysis shows that PM in WVA measurement scheme responds to underwater acoustic pressure unprecedented sensitivity. The prototypical such can sense disturbance 1.3×10-6 Pa/Hz1/2 at 10 Hz, flat frequency response band 0.1-50 Hz....
A high-performance fiber optic interferometric hydrophone based on a push-pull mandrel structure, with high sensitivity and wide-frequency response, is designed developed. Each arm of the Michelson interferometer coil wrapped onto separate but concentric thin elastic tube as sensing to detect acoustic pressure wave. The fabricated examined experimentally, demonstrating its capacity very low-frequency underwater variation. theoretical design validated results showing that has an average...
A seafloor seismic and tsunami monitoring system based on fiber optic interferometric technology was developed installed in the nearby waters at Chinese State Oceanic Administration's (SOA) Wuchang (Hainan Province, China) site. The tricomponent seismometer has a sensitivity of 57 dB (re: 0 = 1 rad/g), within operation frequency range 0.005-50 Hz, minimum detectable acceleration 43.4 ng/√(Hz); while water-level monitor an accuracy ±1 cm, measurement 0-110 m. been operating continuously since...
The influence of the parameters elastic mandrel on performance fiber-optic interferometric hydrophone with a push–pull structure comprised two concentric cylindrical shells is investigated through systematic solid mechanical analysis. structural and material considered include Young’s modulus, Poisson ratio, thickness, length, outer radius tube. result shows that higher sensitivity can be obtained lower modulus thinner wall, larger radius, longer length tube, accompanied by fundamental...
A methane optical sensing system using a single reflective polarization rotation gas cell is developed. The periodic ripple-like variation of interference light intensity in the common analyzed, terms calculated return loss and insertion cell. novel designed demonstrated to adequately suppress effect. efficacy new approach experimentally, showing that accuracy sensor better than by 47 %.
Objectives The vibration-isolation thrust bearing is a new device for the longitudinal vibration control of propulsion shafts. Experimental results show that dynamic transmission properties shaft are quite different from those theoretical calculation predictions. Analysis shows there serious energy leakage bearing. For better understanding cause poor acoustical property system, study conducted with focus upon flexible assemblies to determine directions optimization improvement design...