A5003790606- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Soft Robotics and Applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Sensor and Control Systems
- Photonic Crystal and Fiber Optics
- Robot Manipulation and Learning
- Advanced Fiber Laser Technologies
- Advanced MEMS and NEMS Technologies
- Semiconductor Lasers and Optical Devices
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Tactile and Sensory Interactions
- Optical Coherence Tomography Applications
- Advanced Surface Polishing Techniques
- Structural Health Monitoring Techniques
- Non-Destructive Testing Techniques
- Geophysics and Sensor Technology
- Welding Techniques and Residual Stresses
- Orbital Angular Momentum in Optics
- Manufacturing Process and Optimization
- Ultrasonics and Acoustic Wave Propagation
- Laser-Matter Interactions and Applications
- Mechanical and Optical Resonators
- Optical measurement and interference techniques
Shandong University
2014-2024
Qinghai New Energy (China)
2024
Beihang University
2024
Shanghai Aerospace Automobile Electromechanical (China)
2023
Taiyuan University of Technology
2022-2023
Shaanxi University of Technology
2023
Nanjing University of Posts and Telecommunications
2019-2022
Xidian University
2022
Nanchang University
2021
Shanghai University
2021
ABSTRACT The research on disturbance rejection control for robotic arms in assisted puncture surgery systems aims to improve the precision of surgeries. In this article, an improved sliding mode (SMC) strategy arm with active capability is proposed. First, a nonlinear extended state observer (NESO) introduced detect unknown disturbances based space arm. Next, performance function established constrain tracking errors, and surface constructed constraint function. addition, SMC designed NESO,...
A three-axis fiber Bragg grating accelerometer, which has uniform sensitivities to three axes, been developed for seismic application. This paper presents the design, simulation and calibration of accelerometer. series experiments were performed measure harmonic vibration shock vibration. The precise acceleration was measured by a PZT accelerometer provided high sensitivity. fully described dynamic sensitivity accelerometers represented 3-by-3 matrix is given. results indicate that 0.068 V...
A novel hydraulic pressure sensor based on fiber Bragg grating and elastic metal film is proposed in this paper. Pressure sensing experiments are conducted after the finite element analysis of probe's structure. The demonstrate that kind possesses good linearity repeatability its large measurement range with sensitivity about 23.8 pm/MPa.
A pressure tactile sensor based on the fiber Bragg grating (FBG) array is introduced in this paper, and numerical simulation of its elastic body was implemented by finite element software (ANSYS). On basis simulation, strings were implanted flexible silicone to realize fabrication process, a testing system built. series calibration tests done via high precision universal press machine. The perceived external pressure, which demodulated demodulation instrument, three-dimension pictures...
In this paper, a simple and novel micro-displacement sensor based on tilted fiber Bragg grating (TFBG) is proposed studied. The transversal compression imposed TFBG causes the changes of angle, index, length, resulting in considerable spectrum change cladding modes. amplitude, extinction ratio, central wavelength are analyzed with compression. These three parameters found to have repeatable linear relationship load. Moreover, ratio exhibits high displacement sensitivity 18 dB/mm.
Automatic assembly of elastic components is difficult because the potential deformation parts during process. Consequently, robots cannot adapt their manipulation to dynamic changes. Designing systems that learn skills can help in alleviating uncertain factor for industrial-grade robots. This study proposes a skill acquisition method based on multi-modal information description realize with components. includes two-dimensional images, poses, forces/torques, and robot joint parameters. In...
Currently, an acceleration sensor based on fiber Bragg grating (FBG) has been widely used. A cantilever FBG accelerometer is designed. The simulation of this structure was implemented by finite element software (ANSYS) to analyze its sensing performance parameters. And then the optimized produced and calibration experiments were conducted. On basis simulation, optical embedded in inner tank vibrating mass, suspended above structure, which can effectively avoid phenomenon center wavelength...
An all-fiber fiber coupler was demonstrated for pumping orbital angular momentum (OAM) modes amplification, which fabricated by side-polishing and bonding a ring-core erbium-doped (RC-EDF) pre-tapered side-polished single-mode (SMF). With the selected phase-matching condition at 976 nm, laser coupled into RC-EDF from SMF with optimized high efficiency, whereas 1st to 3rd-order OAM mode signals were transmitted low insertion loss in over broadband wavelength range 1530 1565 nm. This division...
A multi-wavelength Brillouin-Raman random fiber laser (BRRFL) with wavelength spacing of double Brillouin frequency shift (BFS) has been proposed for the first time, to best our knowledge. This BRRFL an extremely simple full-open cavity configuration made up only one roll fiber, where bidirectional stimulated Raman/Brillouin scattering (SRS/SBS) and Rayleigh based distributed feedback coexist. In order further enhance performance BRRFL, a combination erbium-doped amplifier single-mode is...
The paper describes a novel, biomimetic whisker-based sensing technology following the basic design of facial whiskers animals such as rats and mice. sensor consists whisker array on each side robot. In experiments with artificial whiskers, motor drives rotating center wavelength fiber Bragg grating pasted will shift when touches an obstacle. distance be obtained by processing data algorithms. Then shape recognition can realized postprocessing data. experimental results prove that is capable...