A5086471944- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Mechanical Behavior of Composites
- Hernia repair and management
- Photonic Crystal and Fiber Optics
- Gastrointestinal disorders and treatments
- Advanced Surface Polishing Techniques
- Magneto-Optical Properties and Applications
- Intestinal and Peritoneal Adhesions
- Optical Coherence Tomography Applications
- Natural Fiber Reinforced Composites
- Textile materials and evaluations
- Semiconductor Lasers and Optical Devices
Beihang University
2006-2024
Distributed sensing plays an important role in many industrial applications. Sensor arrays consisting of identical ultraweak fiber Bragg gratings can be applied to such scenarios by monitoring the optical spectral response sensors. Yet, spatial resolution, sampling speed, and supported number sensors array are mostly determined interrogation scheme. While dual-optical frequency comb techniques had been successfully demonstrated as a high-resolution spectroscopic technique metrology, it...
This paper presents an innovative and efficient shape-sensing approach for optical fiber Bragg grating (FBG) arrays, employing the dual-comb spectroscopy (DCS) technique demodulation. scheme harnesses power of asynchronous sampling technology, enabling us to achieve high spatial resolution rapid demodulation shape sensing. It accomplishes this by demodulating ultrashort laser pulse signals reflected from gratings positioned at various locations. Our utilizes a single-cavity FBG system array...
A system for realizing shape sensing based on the single-cavity dual-comb spectroscopy technology and a dense all-identical fiber Bragg grating (FBG) sensor array is demonstrated. High spatial resolution small measurement error can be realized with proposed system, two-dimensional shaping experiments. This scheme could find applications in real-time monitoring of flexible structures facilitate development novel robotics biomedical devices.
Objective To explore the impact of open and laparoscopic cholecystectomy different operation methods on postoperative intestinal adhesions. Methods 128 patients with acute cholecystitis were randomly divided into observation group (64 cases) control cases). The was treated cholecystectomy, cholecystectomy.The function, complications adhesion compared between two groups. Results The bleeding amount, incision size, time (132.29±27.28)mL, (3.9±0.2)cm, (102.1±20.9)min, which...
The coating resin performance of the Polarization-Maintaining fiber coil is an important fact to affect FOG. It one some problems in during industrialization From action and effect on two parameters such as temperature vibration ring Fiber Optical Gyroscope (FOG). In allusion factual conditions FOG, all aspects experiments are done experiment results analyzed. analysis show that facts brought due unsuitable adhesive. amount uniformity main effect. addition, remaining stress which can not be ignored.
Enabled by a simple fiber-optic setup, interrogation of large identical weak FBG arrays can be realized using the dual-comb spectroscopy scheme. Unique performance including high spatial/spectral resolution and fast sampling rate is achieved.
A system for realizing shape sensing based on the single-cavity dual-comb spectroscopy technology and a dense all-identical fiber Bragg grating (FBG) sensor array is demonstrated. High spatial resolution small measurement error can be realized with proposed system, two-dimensional shaping experiments. This scheme could find applications in real-time monitoring of flexible structures facilitate development novel robotics biomedical devices.
High-resolution, real-time spatial profile reconstruction based on an identical weak reflection FBG array demodulated by the dual-comb method is demonstrated, facilitated its mm-level resolution and kHz measurement speed.