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Your search keyword '"Huang, Xianhe"' showing total 156 results
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156 results on '"Huang, Xianhe"'

1. Measuring magnetic field inside a microwave cavity via Rabi resonances in Cs atoms

Author

Sun, Fuyu, Hou, Dong, Bai, Qingsong, Huang, Xianhe, Ma, Jie, and Li, Xiaofeng

Subjects
Physics - Atomic Physics
Abstract

We present a technique for measuring microwave (MW) field based on Rabi resonances induced by the interaction of atoms with a phase-modulated MW field. A theoretical model of field measurement is used to calculate Rabi frequency. Single-peak feature of the measurement model makes the technique a valuable tool for simple and fast field measurement. As an example, we use the technique to determine the MW field strength inside a Cs vapor cell in the X-band rectangular cavity for applied power in the range of -21 dBm to 20 dBm. The results show that this proposed technique is capable for detecting the field over a broad dynamical range., Comment: 7 figures

Published
2016

4. Nanochitin/MXene Composite Coated on Quartz Crystal Microbalance for Humidity Sensing.

Author

Li, Yanqi, Huang, Xianhe, Chen, Qiao, Yao, Yao, and Pan, Wei

Subjects
*QUARTZ crystal microbalances, *HUMIDITY, *COMPOSITE coating, *FOURIER transform infrared spectroscopy, *ADSORPTION kinetics
Abstract

MXenes, as a typical graphene-like material, excels in the realm of humidity sensing owing to its two-dimensional layer structure, high electrical conductivity, tunable chemical properties, hydrophilicity, and large specific surface area. This study proposed a quartz crystal microbalance (QCM) humidity sensor using a nanochitin/Ti3C2Tx MXene composite as a humidity-sensing material. The morphology, nanostructure, and elemental composition of nanochitin, Ti3C2Tx MXene, and nanochitin/Ti3C2Tx MXene composite materials were characterized using transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. Compared to the pure Ti3C2Tx MXene-coated QCM humidity sensor, the nanochitin/Ti3C2Tx MXene-coated QCM humidity sensor exhibited a higher sensitivity (20.54 Hz/%RH) in the humidity range of 11.3% to 97.3%. The nanochitin/Ti3C2Tx Mxene-coated QCM humidity sensor also demonstrated low humidity hysteresis (2.12%RH), very fast response/recovery times (4.4/4.1 s), a high quality factor (37 k), and excellent repeatability and sustained stability over time. Eventually, a bimodal exponential kinetics adsorption model was utilized for the analysis of the response mechanism of the nanochitin/Ti3C2Tx MXene composite material-based QCM humidity sensor. This study provides new ideas for optimizing the moisture-sensitive performance of MXene-based QCM humidity sensors. [ABSTRACT FROM AUTHOR]

Published
2023
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7. A Novel Neural Network Approach for Computing Eigen-Pairs of Real Antisymmetric Matrices

Author

Tan, Hang, Huang, Xianhe, Tan, Huachun, Tang, Ying, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Lei, Jingsheng, editor, Wang, Fu Lee, editor, Deng, Hepu, editor, and Miao, Duoqian, editor

Published
2012
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25. Uniformization of Mass Sensitivity Distribution of Silver Electrode QCM.

Author

Pan, Wei, Huang, Xianhe, and Chen, Qiao

Subjects
*QUARTZ crystal microbalances, *ELECTRODES, *SURFACE plates, *SILVER
Abstract

Quartz crystal microbalance (QCM) is a highly sensitive mass sensor and has been widely used in many fields. However, the nonuniform distribution of mass sensitivity will lead to poor reproducibility of QCM, which is not conducive to the application of QCM in some fields. Considering the effect of electrode shape, size, and material on mass sensitivity distribution, we found that for an AT-cut QCM with a fundamental frequency of 10 MHz, when the inner and outer diameters of silver ring electrode and the electrode loading factor are 2 and 5 mm and 0.0033, respectively, an approximately uniform mass sensitivity distribution can be obtained. The plating experiment in which rigid silver films were plated on the surface of electrode verified the uniformity. The uniform mass sensitivity distribution will make the application of QCM more convenient; the reproducibility can also be improved. This design of QCM will enrich QCM products and facilitate the application of QCM in various fields. [ABSTRACT FROM AUTHOR]

Published
2020
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