A5101446123- Advanced Fiber Optic Sensors
- Advanced Sensor and Control Systems
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Advanced Fiber Laser Technologies
- Spectroscopy and Laser Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic Crystal and Fiber Optics
- Geophysics and Sensor Technology
- Spectroscopy Techniques in Biomedical and Chemical Research
- Electric Motor Design and Analysis
- Optical Systems and Laser Technology
- Biosensors and Analytical Detection
- Analytical Chemistry and Sensors
- Climate Change Policy and Economics
- Magnetic Bearings and Levitation Dynamics
- Flow Measurement and Analysis
- Advanced Optical Sensing Technologies
- Atmospheric and Environmental Gas Dynamics
- Advanced Photonic Communication Systems
- Magnetic Properties and Applications
- Thermal Analysis in Power Transmission
- Advanced Semiconductor Detectors and Materials
Qingdao University
2024
Shanghai Electric (China)
2024
Shandong Academy of Sciences
2013-2024
Qilu University of Technology
2018-2024
Hebei Normal University
2024
Shanghai Institute of Technical Physics
2015-2024
City, University of London
2023
Tianjin University
2019-2020
Changchun University of Science and Technology
2018
Laser Research Institute
2010-2018
In an attempt to overcome problems associated with the reversible lithium electrode in organic solvent‐based electrolytes, electrochemical characteristics of a number binary and ternary alloys propylene carbonate have been studied. Thermodynamic kinetic results for Li‐Sn, Li‐Sb, Li‐Bi systems are reported here. each these systems, one or more two‐phase regions apparently rapid transformation kinetics at ambient temperature identified. Lithium chemical potentials partial molar entropies...
In this paper, the design and underpinning technical principles of novel a negative pressure wave (NPW)-based pipeline leak detection system has been reported, which is configured using fiber Bragg grating (FBG) sensors. To evaluate this, leakage test platform established experiments have conducted, to verify performance FBG-based approach. The results show that sensors can accurately determine change trends along thus allow calculation NPW velocity online. A key comparison made with...
Scanning Electrochemical Microscopy (SECM) offers exceptional spatial and temporal resolution while enabling the detection of localized chemical activity. However, conventional SECM methodology lacks a robust positioning mechanism, leading to convolution electrochemical responses with topographical features. This study presents an innovative feedback termed as "Scanning Contact Force (SCFM)", leveraging microforce servo control principles precisely determine "contact zero point" between tip...
Mildew is an important issue in grain storage, due to the very expensive losses that can arise spoilage by mildew. Monitoring conditions which allow mildew develop and current monitoring technology cannot readily, or safely, be used for internal humidity of large quantities kept storage. In this work, a quasi-distributed, tailored fiber optic temperature sensor system suitable use granaries has been developed. Dust from major copes well with this. Various designs have evaluated building on...
The liquid structures of nonaqueous electrolytes composed lithium bis(trifluoromethylsulfonyl)imide (LiTFSI) and acetamide, with LiTFSI/acetamide molar ratios 1:2, 1:4, 1:6, were studied by molecular dynamics simulations. simulations indicate that the Li+ cations prefer to be six-coordinate sulfonyl oxygen atoms TFSI- anions carbonyl acetamide molecules, rather than most electronegative nitrogen atom anion. Therefore, close Li+-TFSI- contact pairs exist in system. anion prefers provide only...
Based on the principle of fiber Bragg grating, a new type fiber-optic pressure sensor for axial force measurement transformer winding is designed, which designed with structure bending plate beam, optimization packaging process, and material sensor. Through calibration experiment to calibrate sensor, field test results Taikai factory show that sensitivity 0.133 pm/kPa repeatability error 2.7% FS. The data in different positions maintain consistent repeatable, can meet requirement real-time...
Abstract An innovative probe design, based on plastic optical fiber (POF) which has been designed around a side-polished fiber, bent into ‘V’ shape, is reported. Such offers an approach to monitoring of the surrounding refractive index (RI) material under study. The underlying principle that such configured in this way can give rise enhanced evanescent field. This structure, with slot, was used fix POF. As result, POF created optimized using different intersection angles, circular chamfer...
There is increasing interest in high speed machines for industry applications due to the merits of power density and small size. However, heat dissipation machine becomes a series problem also size loss density. Therefore, how estimate accurately losses temperature rise big issue design. In this paper, calculation methods PM generator are studied. The air friction on rotor surface calculated by analytical method; core loss, copper based transient field-circuit coupled finite element...
In this paper, building on a design developed from an advanced mathematical model, practical fiber optic sensor, which is analog of the familiar "hot-wire" wind velocity monitor, has been developed, as intrinsically safe sensor device for use coal mining monitoring applications. The response time, dynamic measurement range, sensitivity, probe surface heat transfer coefficient, and effect (gas) have investigated in laboratory situ results reported, enabling model used process to be validated....
The high speed permanent magnet (PM) machine has been widely investigated since it small size, efficiency and power density. However, due to the rotor frequency of stator flux variation, design a is quite different from designing conventional machine. This paper will pay attention core winding for PM A comparative study on influence structures performance same carried out based magnetic field analysis
Accurate location of micro-seismic source in underground coal mine is great significance for monitoring and early warning dynamic disaster. Micro-seismic information generally extracted through inversion the data acquired by sensors. The installation sensors limited around roadway. unreasonable arrangement along roadway will greatly decrease precision seismic location. As ill-posed problems caused with sensor-received information, high algorithm based on optimization points presented this...
This paper focus on an enhanced Raman-based detection probe and its performance evaluated. The employs a hollow-core fiber design to allow liquid micro-sample be analyzed. is used both transmit the light signal excite sample collect Raman scattering received from under analysis. In order maximize of system, various parameters have been studied experimentally, including diameter height in probe. aim has optimizing as means enhance sample. As result, using reflector approach was developed...
In this paper, a mathematical model of the temperature distribution in fiber-optic version familiar 'hot-wire' wind velocity sensor has been established and practical device realized investigated for use coal mining applications. The relationship between dynamic measurement range, sensitivity, probe surface heat transfer coefficient speed (in region where is located) investigated. veracity predicted performance hot-wire then verified by experiment. sensitivity to was measured across several...
Combining the benefits of photothermal conversion in a doped optical fiber with principle Fiber Bragg Grating (FBG)-based temperature measurement, new method for measurement moisture content has been developed and its performance is reported. This novel all-fiber approach shows important characteristics fast response, miniaturization design low power consumption. In this work, 1480nm pump laser used to heat cobalt-doped used, which embedded sample under investigation, where sensor change was...
Quantum well infrared photodetectors (QWIPs) have natural advantages, such as high material maturity and good uniformity. But its low quantum efficiency is often criticized a drawback. The optical coupling structure one of the key factors affecting detectors. This article mainly focuses on impact detectors detector wavelength, efficiency, other aspects. We established an model for detectors, consisting three different angles structures: 45 degrees, 62 90 degrees periodic two-dimensional...
This article mainly studies the current voltage (IV) characteristics of Quantum Well Infrared Photo-detectors, especially influence temperature on their performance, as well related to photocurrent and dark current. We measured IV curves at different temperatures conducted comparative reveal differences in behavior quantum devices under photoexcitation non conditions, order gain a deeper understanding performance characteristics. Finally, we investigated response blackbody fitted using...