A5085778888- Ultrasonics and Acoustic Wave Propagation
- Non-Destructive Testing Techniques
- Acoustic Wave Resonator Technologies
- Advanced MEMS and NEMS Technologies
- Welding Techniques and Residual Stresses
- Sensor Technology and Measurement Systems
- Electrical Contact Performance and Analysis
- Image and Signal Denoising Methods
- Engineering Applied Research
- Vibration and Dynamic Analysis
- Electromagnetic Effects on Materials
- Structural Health Monitoring Techniques
- Mechanical stress and fatigue analysis
- Offshore Engineering and Technologies
- Geophysics and Sensor Technology
- Underwater Acoustics Research
- Force Microscopy Techniques and Applications
- Characterization and Applications of Magnetic Nanoparticles
- Plant Gene Expression Analysis
- Blind Source Separation Techniques
- Photoacoustic and Ultrasonic Imaging
- Magnetic Properties and Applications
- Gas Sensing Nanomaterials and Sensors
- Fault Detection and Control Systems
- Power Line Inspection Robots
Shanghai Jiao Tong University
2008-2025
Zhaotong University
2025
Newcastle University
2012
Magnetic nanoparticles (MNPs) are commonly used in biomedical detection due to their capability bind with some specific antibodies. Quantification of biological entities could be realized by measuring the magnetic response MNPs after binding process. This paper presents a contactless scanning prototype based on tunneling magnetoresistance (TMR) sensors for quantification present lateral flow strips (LFSs). The sensing unit composes two active TMR elements, which parallel and closely arranged...
Environmental conditions significantly influence the metabolic composition and quality attributes of fruits. This study investigated impact altitude-associated environmental variation on flavonoid profiles fruit parameters by comparing "Red Face" strawberry variety grown in two distinct locations: high-altitude-associated Zhaotong low-altitude Dandong. Using LC-MS/MS analysis, we identified 163 bioactive flavonoids, comprising 85 flavonols, 37 flavanones, 33 flavones, 8 flavanonols. The...
The received signal in ultrasonic pulse-echo inspection can be modeled as a convolution between an impulse response and the reflection sequence, which is characteristic of inspected object. Deconvolution aims at approximately inverting this process to improve time resolution so that overlap echoes from closely spaced reflectors becomes small. This paper presents modified minimum entropy blind deconvolution algorithm for deconvolving signals. Enhancement achieved by using presented method. In...
This paper presents a method of health monitoring for coated steel belts in an elevator system by measuring the electrical resistance ropes embedded belt. A model on change caused fretting wear and stress fatigue has been established. Temperature reciprocating cycles are also taken into consideration when determining potential strength degradation belts. It is proved experiments that could effectively estimate most dangerous section as well other ones along whole
The estimation of the time arrival (TOA) and/or flight ultrasonic echoes is essential in nondestructive evaluation. In this paper, matching pursuit method has been used to analyze noisy pulse-echo wavelet and decompose into unit-norm vectors. error ratio mean square monitor acceptability vector obtained by performance. A matched filter can be designed using reversal approximation reconstruction result with several large coefficient decomposed After performing filter, part signal related...
Coated steel belts (CSBs) are becoming widely used in elevator systems due to their good performance. The reliability and safety of the most important factors for operation. difficulties testing small diameter rope high lift-off distance during magnetic flux leakage (MFL) inspection, which will result a fairly weak signal with low SNR. This paper presents hardware software methods overcoming problems. By comparing two kinds sensors, Hall giant magneto-resistance (GMR) GMR sensors were...
Abstract Shipborne dynamic weighing is fundamental in developing marine fishery resources and oceanographic research. It enables the sorting of seafood, quantitative baiting, measurement research sample weights environments. Therefore, shipborne systems crucial for integrated exploitation resources. However, on limited. To address this issue, study initially analyzed impact ship’s attitude information results. Subsequently, a mathematical model weighing, incorporating compensation factors,...
The finite element method (FEM) has been applied to extract the coupling-of-modes (COM) parameters of surface acoustic wave (SAW) devices for a long time. It always involves calculating dispersive curves or harmonic admittance, which makes extraction process and results sophisticated, time-consuming inaccurate. Therefore, simple is proposed all COM SAW rapidly accurately in this paper. based on FEM combines stationary analysis with modal analysis. We have described detail basic principles...
SAW torque sensor is an important method in detection, and sensing element part of sensor. Therefore, the design analysis technology hold significant importance. In this study, The was simulated analyzed by finite simulation software, fabricated through use MEMS processes. Finally, testing platform built, tested analyzed. results three loading tests show that sensitivity 4.0045kHz/N•m, 4.0044kHz/N•m 4.0011kHz/N•m. designed has good provide a guidance for application
This article presents a passive wireless weighing sensor based on surface acoustic wave (SAW) technology. It consists of one-port SAW sensing resonator and force-sensitive structure. Stable temperature (ST)-cut quartz was employed as the piezoelectric substrate resonator, characteristics sensitive were simulated by finite element method (FEM). The double-connected holes structure proposed to form difference unit, which improves sensitivity can counteract effects ambient temperature. Based...
Inspection for flaws is very important in offshore oil pipelines avoiding disasters. An ultrasonic inspection device was developed. High speed data acquisition and storage systems were developed to process the high frequency signals. The main function of system signal pre-processing, acquisition, de-noising compression real time. includes a micro-computer, transducers, pre-processing circuit, digital processor (DSP), Field Programmable Gate Array (FPGA), device, USB interface other...