A5000905669- Advanced Fiber Optic Sensors
- Optical Systems and Laser Technology
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Photonic Crystal and Fiber Optics
- Semiconductor Lasers and Optical Devices
- Photoacoustic and Ultrasonic Imaging
- Advanced Measurement and Detection Methods
Naval University of Engineering
2021-2023
The predecessor of China Optics was and Applied Digest, which founded in 1985. At that time, it the only retrieval journal field optics China. end 2008, Digest renamed
DFB fiber laser is cross sensitive to sound pressure signal and vibration signal. To the actual demand of towed thin linear array based on hydrophone, probe symmetrical sensitized hydrophone was designed packaged. In this paper, sensitivity acceleration were calculated by finite element simulation respectively, experimental verification carried out. Second, acoustic coupling experiment simulate working conditions, motivated signal, under conform separate calculation sensitivity. It...
In order to realize the real-time on-line monitoring of motor rotor temperature, a Fiber Bragg Grating (FBG) temperature sensing system using fiber optic rotary joint transmit signals was built. The effects acceleration and mounting angle sensors chain on central wavelength FBG were studied. measurement test rotating shaft carried out. following conclusions can be drawn. variation is related linear surface, density thickness grating coating. For whose surface within 100m/s 2 , when coating...
For the axial stretching fiber laser hydrophone, a is often exposed to flexural interference. A theoretical model for vibration of was therefore constructed in this paper explore low frequency anti-interference mechanism response an axially tensioned hydrophone (FLH). specific packaging structure used finite element comparison and simulation. Packaged FLHs were tested response. The simulation test results reveal that flexible attachment at both ends leads lower amplitude compared with rigid...
For the structure of organic material axial stretching distributed feedback (DFB) fiber laser hydrophones, both ends are sensitized by perfusion molding. During encapsulation, when DFB is not precisely fixed to central axis sleeve, will produce eccentricity after matters solidified. Therefore, theoretical model was established in this paper, and influence eccentricities on frequency response characteristics hydrophones analyzed with finite element method, experimental verification carried...