Qingqing Ke

High-precision temperature-strain composite sensing based on a single resonator-type surface acoustic wave sensor using machine learning algorithms

Chunlong Cheng, Yanxin Liu, Jingwen Yang, Tianyao Luo et autres

Surface acoustic wave (SAW) sensors are extensively employed for temperature/strain measurement. However, precise temperature/strain sensing remains challenging under complex conditions involving simultaneous mechanical strains and temperature fluctuations, due to the inherent cross-sensitivity between temperature and strain. To address this challenge, we developed …

cn (code pays fourni par la source)

Self-adaptive impact localization in pipe structures via in-situ direct-writing of a P(VDF/TrFE) sensor array by airbrush spraying

Guoxiang Zhang, Zhiyong Wu, Kanjie Du, Zhiqing Zhang et autres

cn (code pays fourni par la source)

A Dual-Top-Electrode ScAlN-Based Piezoelectric Micromachined Ultrasound Transducer With Series-Connected Electrode Topology for Enhanced Receiving Sensitivity

Zihan Lu, Hongxin Xu, Xuefei Yan, Huahuang Luo et autres

cn, mo (code pays fourni par la source)

Charge-collection narrowing without thick-film requirement enables self-powered ultra-narrowband UV photodetection for imaging and anti-interference optical communication

Xiaoyu Zhou, Fangyuan Tan, Yutong Deng, Z-X Yan et autres

cn (code pays fourni par la source)

Nernst‐Effect‐Modulated Bilinear Magnetoelectric Resistance in Chiral Tellurium Nanosheets

Ying-Ying Lan, Qing Yin, Pu Wang, Xin Liao et autres

ABSTRACT The chiral crystal structure and strong spin‐orbit coupling of tellurium (Te) make it an appealing platform for exploring unconventional radial spin textures, which can be probed via bilinear magnetoelectric resistance (BMR). Recent studies have consistently reported a pronounced BMR in Te …

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Freestanding Relaxor Ferroelectric Single‐Crystalline Thin Films Enable Flexible Piezoelectric Energy Harvester With Giant Power Density

Zhongqi Ren, Silin Tang, Yibin Fu, Yixuan Ma et autres

ABSTRACT Piezoelectric‐based flexible nanogenerators have appealed tremendous attention due to their significant application potential in wearable and implantable devices. However, materials with high piezoelectricity commonly used in these nanogenerators are typically rigid oxides, which often suffer from low strain tolerance due to …

cn, in (code pays fourni par la source)

Dynamic disordering in discrete states: Disconnected hopping boosts anharmonicity in CuInP 2 S 6

Bowen Wang, Hejin Yan, Jie Huang, X Yan et autres

Delineation of matter into solid and fluid (liquid and gas) phases is grounded in the contrasting localization and mobility of atomic/molecular aggregates, with the fluid phase distinguished by connected pathways for these entities. Here, we demonstrate that CuInP 2 S 6 , …

mo, fi, cn, gb (code pays fourni par la source)

A cochlea bio-inspired tunable piezoelectric cantilever array MEMS microphone: comprehensive study

Zhuoyue Zheng, Qingqing Ke, Huahuang Luo, Pan Zhang et autres

This study introduces a bio-inspired AlN-piezoelectric MEMS microphone that showcases a cantilever structure offering adjustable performance, fully emulating the dynamics and tunability observed in the basilar membrane of the mammalian cochlea. Through the incorporation of piezoelectric and converse piezoelectric effects alongside dual …

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Two-Dimensional Modeling for Parametric Optimization and Crosstalk Analysis of Dual-Axis Micro Thermal Convective Tilt Sensors

Huahuang Luo, Tingfeng Peng, Zhenzhen Lu, Hongxin Xu et autres

This paper presents a novel two-dimensional (2D) model based on partial differential equations (PDEs) to characterize the input-output response of the dual-axis micro thermal convective tilt ($\mu $TCT) sensors. The proposed model enables highly efficient performance analysis of$\mu $TCT sensors with a …

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Embedded SAW sensors based on ZnO/Pt/SiO2/Si structure for temperature measurement

Tong Tong, Chunlong Cheng, Yanxin Liu, Cai Qin Luo et autres

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A Full-Band Piezoelectric MEMS Microphone with a Single Diaphragm

Zhuoyue Zheng, Junchen Liu, Jinuo Zhou, Fengzhe Xu et autres

This work presents a piezoelectric microphone with a single diaphragm to detect both infrasonic ($0.2-50 \text{Hz}$) and audible ($20 \text{Hz}-10 \text{kHz}$) frequency regimes with a dual sensing scheme (resonant and non-resonant output). The proposed methodology offers a universal solution to low-frequency attenuation …

mo, cn (code pays fourni par la source)

Decoupling of Temperature-Strain Signals in Surface Acoustic Wave Sensors Using Machine Learning Algorithms

Chunlong Cheng, Huahuang Luo, Lechen Xiong, Qingqing Ke

Surface acoustic wave (SAW) sensors exhibit temperature-strain cross-sensitivity, which poses significant challenges for precise temperature and strain detection in complex environments. However, currently reported decoupling methods generally increase assembling complexity of SAW sensors, therefore failing to achieve ideal decoupling performance. In this …

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