A5031028541- Ultrasonics and Acoustic Wave Propagation
- Flow Measurement and Analysis
- Advanced MEMS and NEMS Technologies
- Mechanical and Optical Resonators
- Microfluidic and Bio-sensing Technologies
- Electrical and Bioimpedance Tomography
- Acoustic Wave Resonator Technologies
- Advanced Sensor and Energy Harvesting Materials
- Microfluidic and Capillary Electrophoresis Applications
- Photonic and Optical Devices
- Non-Destructive Testing Techniques
- Advanced Fiber Optic Sensors
- Nanopore and Nanochannel Transport Studies
- Advanced Chemical Sensor Technologies
- Orbital Angular Momentum in Optics
- Advanced Optical Sensing Technologies
- Electrocatalysts for Energy Conversion
- Conducting polymers and applications
- Electrochemical sensors and biosensors
- Supercapacitor Materials and Fabrication
- Electrospun Nanofibers in Biomedical Applications
- Meat and Animal Product Quality
- Glass properties and applications
- Optical Wireless Communication Technologies
- Ultrasound and Cavitation Phenomena
Xi'an Jiaotong University
2009-2024
Yantai University
2022-2023
Xi'an University of Technology
2021
John Wiley & Sons (United States)
2021
Hudson Institute
2021
Microbiology Institute of Shaanxi
2019
Zhejiang University
2017
Harbin Institute of Technology
2010-2013
State Key Laboratory of Mechanical Manufacturing System Engineering
2011
Tactile sensors have been widely used in the areas of health monitoring and intelligent human-machine interface. Flexible tactile based on nanofiber mats made by electrospinning can meet requirements comfortability breathability for wearing body very well. Here, we developed a flexible self-powered sensor that was sandwich assembled electrospun organic electrodes piezoelectric layer. The metal-free thermal plastic polyurethane (PU) nanofibers decorated with multi-walled carbon nanotubes were...
Microsupercapacitors (MSCs) are integrated into microdevices or chip‐based systems to store energy and power the chip efficiently, as they present excellent performance capabilities including high density, fast charge/discharge rate, long cycle time. Providing sufficient surface area electric conductivity effective ways enhance ion diffusion charge transportation in electrodes, which turn leads behavior. Herein, novel progress of on‐chip MSCs past few years ranging from active materials...
A micromachined resonator immersed in liquid provides valuable resonance parameters for determining the fluidic parameters. However, operating environment poses a challenge to maintaining fine sensing performance, particularly through electrical characterization. This paper presents piezoelectric cantilever with stepped shape monitoring purposes. Multiple modes of proposed are available full characterization realizing self-actuated and self-sensing capabilities. The focus is on higher...
With the increasing demand for multidirectional vibration measurements, traditional triaxial accelerometers cannot achieve measurements with high sensitivity, natural frequency, and low cross-sensitivity simultaneously. Moreover, piezoresistive accelerometers, achieving pure axial deformation of beam can greatly improve performance, but it requires to be located in a specific position, which inevitably makes design more complex limits performance improvement. Here, monolithically integrated...
To controllably deflect the Airy beam in a wide range dynamic, method of combining classical cubic phase with diffraction blazed grating was adopted this paper. By dynamically adjusting parameters, transverse self-accelerating allows arbitrary deflection, and deflected position can be controlled precisely. The mathematical model optical field distributions generated by combined patterns were proposed to explain feasibility. Its correctness ultimately demonstrated experimental results. It is...
The method of superimposing multiple phase patterns to generate and deflect multi Airy beams is proposed in this paper. A Dammann grating an optimized splitting are superimposed, respectively, with cubic pattern array 4×4 equal-space beams. By adding a deflection the superimposed patterns, transverse self-accelerated can be deflected arbitrarily two-dimensional plane. impacts on acceleration size main lobe discussed Meanwhile, accuracy steering impact modulation depth introduced.
Abstract Ultrasonic fluid bubble detection is important in industrial controls, aerospace systems and clinical medicine because it can prevent fatal mechanical failures threats to life. However, current ultrasonic technologies for are based on conventional bulk PZT-based transducers, which suffer from large size, high power consumption poor integration with ICs thus unable implement real-time long-term monitoring tight physical spaces, such as extracorporeal membrane oxygenation (ECMO)...
Axial stress monitoring of bolts is significant to various engineering structures and machines because it can assist their reliable durable operation, prevent major failures safety accidents. Among sensing technologies, ultrasound holds prominent advantages in accuracy, noninvasiveness, non-destructive testing, etc. However, current ultrasonic technique predominantly relies on conventional bulk-PZT transducers, which suffer large size, high-power consumption, inferior integration with ICs,...
Pipe contaminant detection holds considerable importance within various industries, such as the aviation, maritime, medicine, and other pertinent fields. This capability is beneficial for forecasting equipment potential failures, ascertaining operational situations, timely maintenance, lifespan prediction. However, majority of existing methods operate offline, detectable parameters online are relatively singular. constraint hampers real-time on-site comprehensive assessments status. To...
This paper presents the development of a novel micro force sensor based on laterally movable gate field-effect transistor (LMGFET). A precise electrical model is proposed for performance evaluation small-scale LMGFET devices and exhibits improved accuracy in comparison with previous models. sandwich structure consisting gold cross-axis decoupling array layer two soft photoresistive SU-8 layers utilized. With dual-differential sensing configuration, output current lateral operation under...
Label-free biosensors, combined with miniaturized micro-electromechanical sensory platforms, offer an attractive solution for real-time and facile monitoring of biomolecules due to their high sensitivity selectivity without the need specifically labeling. Resonators have been acknowledged as efficient technology measuring biomolecular binding events including those involving nucleic acid antibody. Among these, capacitive micromachined ultrasonic transducers (CMUTs) emerged a promising...
Dielectrophoresis is employed in micro total analysis systems to manipulate targets recent years including sorting, transporting, separating, and collecting microparticles for further applications. This research reported a dielectrphoretic trasporting application with interdigitated electrodes high frequency alternating waves. A kinetic model was proposed describe the movement of particles microchannel, which were driven by DEP force induced non-uniform electric field. field generated on...
Abstract Microfabricated piezoresistive accelerometers with purely axially deformed beams have demonstrated high performance. However, the conventional design of such requires complex theoretical calculations and specific dimensional conditions to achieve axial deformation, which inevitably increases difficulty cost manufacturing. We propose an innovative structure that can simply realize pure deformation by eliminating transverse displacement at both ends without tedious calculations. An...
The transport and deformability of erythrocyte (RBC) leukocyte (WBC) play great roles in both microcirculation vivo blood cell diagnosis. This paper used the microfabricated chips to study deformation cells typical sized rectangular microchannels. test microchannel were fabricated by standard photolithography, ICP etching, anode bonding with silicon wafers glass covers. Flow field was magnified an upright microscopy images captured a high speed CCD camera. With special designed image...
In a fiber-optic disk accelerometer, the strain distribution of sensing fiber is crucial for improvement sensitivity. The characteristics axial and radial in are analyzed by finite-element method, influence on sensitivity accelerometer studied. Sensors with different outer radii coils designed manufactured, their performance tested. resonant frequencies greater than 200 Hz, increases as radius coil increases. dynamic range sensor maximum 145.8 dB@100 transverse cross talk 32.5 dB. Among...
The optical fiber winding structure provides a long-distance data link for the optic guided missile (FOG-M). Based on stress analysis, we established brand new theoretical model to calculate strain distributed of standard structure. An iterative formula is obtained, which can be used axial each layer in process. Calculation results show that decreases continuously by layerfrom outside inside layers and gradually converges constant after couple layers. Using Brillouin time domain analysis...
Phased array ladar is a new type of that using an optical phased (OPA) as beam steering device. In the application ladar, development liquid crystal (LC-OPA) technology introduced in this paper. Through discussion about response speed, deflection efficiency and angle, performance described. Subsequently, we introduce progress multiple beams scanning tracking arrays.
Micro-fluidic-System plays a great role in the blood processing. The flow properties are very difficult to describe with mathematic models because there mount of cells it. which pass through micro-channels varied size and shape must be studied design appropriate micro-structure optimize operation. laminar model two-phase compared this paper. micro-channels-chip experiment system was made silicon glass using MEMS technology. states microchannels observed recorded high speed CCD camera. We...