A5101858095- Advanced Fiber Optic Sensors
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Concrete and Cement Materials Research
- Photonic Crystal and Fiber Optics
- Random lasers and scattering media
- Innovative concrete reinforcement materials
- Advanced Optical Imaging Technologies
- Geophysical Methods and Applications
- Mechanical and Optical Resonators
- Spectroscopy and Chemometric Analyses
- Photoacoustic and Ultrasonic Imaging
- Advanced Sensor and Control Systems
- Optical Coherence Tomography Applications
- Thermoregulation and physiological responses
- Radiation Detection and Scintillator Technologies
- Magnesium Oxide Properties and Applications
- Analytical Chemistry and Sensors
- Optical Network Technologies
- Flow Measurement and Analysis
- Concrete Properties and Behavior
- Advanced Algorithms and Applications
- Optical Systems and Laser Technology
- Gas Sensing Nanomaterials and Sensors
- Digital Holography and Microscopy
Zhejiang University of Technology
2023-2024
Shaanxi University of Science and Technology
2013-2021
Northwest University
2014-2016
Northwest University
2013
Wuhan University of Science and Technology
2009
A simultaneous relative humidity (RH) and temperature sensor based on an optical fiber Fabry-Perot interferometer is proposed experimentally demonstrated. This constructed by splicing a short length of photonic crystal (PCF) to single mode coating ultrathin polyvinyl alcohol film the PCFs cleaved surface. The total this sensing head only ~110 μM compact size means it can be used flexibly in limited space harsh environments. Experimental results demonstrate that simultaneously measure ambient...
A hybrid fiber interferometer sensing configuration for ambient refractive index (RI) and high temperature measurements is proposed experimentally demonstrated, which constructed by splicing a short section of photonic crystal to one output port 2 × 50:50 fiber-optics coupler with controllable offset. The reflected spectrum pattern the presents two obvious interference fringes different frequencies caused Fabry-Perot Michelson interferences. Experimental results show that probes unique can...
Effects of fly ash (FA) content and environmental factors on the water permeability were studied, similarity relationship time-dependent coefficient in site laboratory environment was discussed. Meanwhile, main microstructure parameters their characteristics analyzed by NMR method. Finally, correlation between porosity two environments analyzed. Results show that FA concrete both decreased with exposure time environments. can effectively improve impermeability, improvement effect increased...
A sensing structure consisting of an abrupt taper spliced uniformly in to a fiber Bragg grating (FBG) is proposed and experimentally demonstrates refractive index (RI) temperature measurements.Cladding modes are generated the through containing FBG.Most reflected by FBG at shorter wavelengths reenter launch after passing taper.Spectral integrals used measure power cladding core modes.A sensitivity -83.97 nW/RIU for ambient RI 10 pm/ • C obtained.No crosssensitivity problems exist between measurement.
This study delves into the influence of introducing calcium sulfate whiskers (CSW) and basalt fiber (BF) on intrinsic gas permeability coefficients concrete. Employing Cembureau method, research quantifies while utilizing Nuclear Magnetic Resonance (NMR) to precisely measure pore structure parameters. The results highlight that incorporation CSW leads a substantial reduction in permeability, exhibiting remarkable 57.56% decrease when utilized at dosage 3.0 kg/m3 compared standard In...
Thermal therapy (or hyperthermia) is one of the effective operations for tumor treating and curing. As tissues are more susceptible to heat than normal tissues, in thermal operations, temperature on operation area a crucial parameter optimal treating. When too low, cannot be killed; otherwise, high, may damage around tumor. During operation, heating power normally supplied by high-frequency EM field, so traditional sensors, such as couples, thermistors, work stably due interference. We...
A new method for accurate measurement of content textile mixture based on Fourier transform near infrared spectroscopy is put forward. The spectra 56 samples with different cotton and polyester contents were obtained, in which 41 samples, 10 5 used the calibration set, validation set prediction respectively. wavelet (WT) was utilized data compression. From linear nonlinear perspective, multivariable regression (MLR) model Lambert - Beer's law back propagation (BP) neural network WT...
The inhomogeneity of scattering medium distorts the propagation waves, which has been detrimental to performance optical imaging. operating time traditional solutions will be very long as scanning is necessary during A recovery solution based on spatial transmission matrix proposed. With acquiring matrix, incident object wave recovered directly from distorted transmitted wave, in this way, only a single shot needed effectiveness method proved by simulation and experiment, principle simpler...