A5026375016- Multiferroics and related materials
- Acoustic Wave Resonator Technologies
- Ferroelectric and Piezoelectric Materials
- Optical measurement and interference techniques
- Advanced Measurement and Metrology Techniques
- Magneto-Optical Properties and Applications
- Optical Systems and Laser Technology
- Magnetic Field Sensors Techniques
- Antenna Design and Analysis
- Advanced Sensor and Energy Harvesting Materials
- Underwater Vehicles and Communication Systems
- Energy Harvesting in Wireless Networks
- Indoor and Outdoor Localization Technologies
- Acoustic Wave Phenomena Research
- Advanced Fiber Optic Sensors
- Power Transformer Diagnostics and Insulation
- Microwave Imaging and Scattering Analysis
- Innovative Energy Harvesting Technologies
- Surface Roughness and Optical Measurements
- Image Processing Techniques and Applications
- Anomaly Detection Techniques and Applications
- Neural Networks and Applications
- High voltage insulation and dielectric phenomena
- Ultrasonics and Acoustic Wave Propagation
- Geophysical and Geoelectrical Methods
Xi'an Jiaotong University
2019-2025
Guangzhou University
2023
Shanghai Electric (China)
2022
Finding an efficient way for underwater communication with a portable antenna at very low frequency (VLF 3–30 kHz) is challenging since the conventional electrical antennas require size to be larger than 1/10 of wavelength. Recently, acoustically driven were proposed realize VLF in air but lack demonstration lossy environment. Here, we reported first system based on pair actuated magnetoelectric (ME) small 10 cm length. A theoretical analysis reflection and radiation performance ME was...
Harvesting electrical energy from stray magnetic fields around the power cable is attractive in developing sustainable sources for wireless sensor network. Magneto-mechano-electric (MME) generators, consisting of cantilevered magnetoelectric (ME) composite with permanent magnet mass, are promising efficiently converting low-frequency into energy. However, density needs further improvement practical applications. Here, enhanced MME generator reported by optimizing resonant frequency via...
Acoustically actuated magnetoelectric (ME) antennas based on resonant coupling within ferromagnetic/piezoelectric ME laminated composites have recently been considered as a promising solution for antenna miniaturization. However, its radiation performance has theoretically overestimated, since the negative effects performances due to magnetization saturation and nonlinear mechanical behavior that occur from high-field driving not paid enough attention. This work presents unique...
Abstract Flexible pressure sensors have attracted intensive interest for promising applications in healthcare monitoring and flexible electronic devices. Nonetheless, designing to achieve both ultrahigh sensitivity (>1000 kPa −1 ) an extensive linear range (>50 kPa) poses a significant challenge. In this study, facile magnetic‐facilitated self‐assembly parallel circuit strategy prepare high‐performance Nickel particles/polydimethylsiloxane (Ni/PDMS) matrices is proposed. The optimized...
A giant magnetoelectric coefficient has been discovered in laminated composites incorporating piezoelectric and magnetostrictive layers, which reveals a high sensitivity AC magnetic field detection under DC bias field. However, the DC-biased are not capable of detecting fields due to interference with signal be measured. Here, we demonstrate portable gaussmeter based on torque effect that can detect both fields. The proposed is equipped sensor, charge amplification module, processing...
Circular fringe projection profilometry (CFPP) is a recently proposed optical three-dimensional (3D) measurement technique. Theoretically, its optimal accuracy should precede that of the conventional profilometry. In practice, impacted by many factors, and much research remains to be done in order make CFPP reach precision. One dominant factors zero-phase point. For usage cotangent function, error near point will significantly amplified. This makes overall very low for with coaxial layout....
Very low frequency (VLF, 3–30 kHz) electromagnetic (EM) waves are widely used in areas such as mining, underwater communications, etc., because of their relatively large skin depth that enables long-distance propagation a lossy medium. Mechanical antennas driven by acoustic oscillation or external mechanical movements have been proven to be promising candidates for low-frequency (LF) transmitters. Unfortunately, the relaxation modulation caused motion inertia limits rates. Here, we developed...
For the application of high-frequency current detection in power systems, such as very fast transient current, lightning partial discharge pulse etc., sensors with a quick response are indispensable. Here, we propose magnetoelectric sensor, which consists PZT piezoelectric ceramic and Metglas amorphous alloy. The proposed sensor is designed to work under d15 thickness-shear mode, resonant frequency around 1.029 MHz. Furthermore, fabricated sensor. A comparative experiment carried out between...
A magnetoelectric (ME) sensor of face-shear type is demonstrated based on the ME composite consisting (PbMg <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$_{{0}.{33}}$ </tex-math></inline-formula> Nb{0}.{67}O{3}}{)}_{{1}-{x}-(PbTiO notation="LaTeX">$_{{3}}{)}_{x}$ piezoelectric single crystal (abbreviated as PMN-PT) and Metglas amorphous alloy. The strain induced in PMN-PT via magnetostriction under a...
Detecting out-of-distribution (OOD) samples is critical for the deployment of deep neural networks (DNN) in real-world scenarios. An appealing direction which to conduct OOD detection measure epistemic uncertainty DNNs using Bayesian model, since it much more explainable. SCOD sketches curvature DNN classifiers based on posterior estimation and decomposes measurement into model parameters influence input models. However, lots approximation applied, models can be hardly measured stably, as...
Phase-shifting fringe projection profilometry (PSFPP) is a three-dimensional (3D) measurement technique widely adopted in industry measurement. It recovers the 3D profile of measured objects with aid phase. The phase accuracy among dominant factors that determine accuracy. Evaluation helps refine adjustable parameters, contributes to evaluating accuracy, and facilitates improvement Although PSFPP has been deeply researched, an effective, easy-to-use evaluation method remains be explored. In...
<title>Abstract</title> The development of advanced magnetoelectric (ME) composites necessitates high-performance materials is capable achieving high levels ME coupling, minimal magnetic loss, absence or limited reliance on external excitation sources. In this paper, a (2-2) connectivity laminate integrates multiple layers FeSiB alloy (Metglas) and Pb (Mg, Nb) O3-PbTiO3 (PMN-PT) single crystal, remarkable coupling coefficient 2033.4 V/Oe·cm (sevenfold rise) by laser thermal annealing...
Recently, piezoelectrically driven resonant magnetoelectric sensors have attracted increasing interest owing to their high sensitivity, compact size, and low power consumption. Here, we theoretically demonstrate the magnetic sensing performances of using field-dependent magnetomechanical effects in a thin-film piezoelectric-on-silicon (TPoS) resonator. Equivalent circuit models are established describe intrinsic thermal noise characteristics mechanical In addition, thermal-magnetic due...
Multi-frequency phase unwrapping algorithms (MFPUAs) are among the most robust and efficient methods, hence widely adopted in various optical measurement techniques, such as fringe projection profilometry, interferometry, so on. However, if they not well designed, or condition is poor, order error (FOE) will be triggered during unwrapping, which result error. This paper for coping with FOE without consuming additional patterns unwrapping. Firstly, a parameter called inaccuracy (FOI)...
Very low frequency (VLF) is a characteristic band in the radio spectrum. Due to its large skin depth, signal can penetrate through water and rock, with strong anti-interference ability long propagation distance. It gradually applied underwater communication geological exploration. Mechanical antennas that driven by external mechanical driving acoustic self-resonance have been proved be excellent VLF electromagnetic (EM) wave transmitters. However, relaxation caused modulation during...
The domain structure fundamentally determines the piezoelectric/ferroelectric performance of ferroelectric materials. To understand correlation between macro-properties and microstructure, evolution should be clearly figured out. Here, diffraction-plane-transformation (DPT) model is proposed for evaluation in BS-PT piezoelectric ceramics rhombohedral crystalline structure. transformation different crystal planes accurately revealed by DPT model. Then, non-180° reversal 0.4BiScO3–0.6PbTiO3...
the identification of hidden troubles distribution transformers in low-voltage stations plays an important role safe and stable operation power systems. Therefore, it is great significance to detect early as soon possible. In this study, modified bat algorithm optimized support vector machine (SVM) was introduced into transformer trouble analysis diagnosis. Due low solution accuracy convergence speed traditional algorithm, long training time easy fall local optimum, a modification method...