scholarly journals On Measurement of the Spatio-Frequency Property of OFDM Backscattering

2018 ◽  
Author(s):  
Xiaoxue Zhang ◽  
Nanhuan Mi ◽  
Xin He ◽  
Panlong Yang
Keyword(s):  
Frequency Property

scholarly journals Study on the nonlinear vibration of embedded carbon nanotube via the Hamiltonian-based method

2021 ◽  
pp. 146134842110327
Author(s):  
Kang-Jia Wang ◽  
Guo-Dong Wang
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Nonlinear Vibration ◽  
Elastic Medium ◽  
Numerical Results ◽  
Frequency Property ◽  
New Novel ◽  
Novel Method

This article mainly studies the vibration of the carbon nanotubes embedded in elastic medium. A new novel method called the Hamiltonian-based method is applied to determine the frequency property of the nonlinear vibration. Finally, the effectiveness and reliability of the proposed method is verified through the numerical results. The obtained results in this work are expected to be helpful for the study of the nonlinear vibration.

scholarly journals Measurement of Impedance-Frequency Property of Traction Network Using Cascaded H-Bridge Converters: Device Design and On-Site Test

2020 ◽  
Vol 35 (2) ◽  
pp. 746-756
Author(s):  
Mingli Wu ◽  
Jing Li ◽  
Qiujiang Liu ◽  
Shaobing Yang ◽  
Marta Molinas
Keyword(s):  
Device Design ◽  
Frequency Property ◽  
Traction Network ◽  
Site Test

Low frequency property of a fractal vibration model for a concrete beam

Fractals ◽  
2021 ◽  
Author(s):  
Chun-Hui He ◽  
Chao Liu ◽  
Ji-Huan He ◽  
Khaled A. Gepreel
Keyword(s):  
Concrete Beam ◽  
Low Frequency ◽  
Frequency Property ◽  
Vibration Model

The Design of AT-Cut Multiple-Electrode Quartz Crystal Resonator and the Research of its Oscillation Stability and Force-Frequency Property

2012 ◽  
Vol 252 ◽  
pp. 77-80
Author(s):  
You Bin Sun ◽  
Wen Jie Tian ◽  
Qing Jiang Zhao ◽  
Bai Yang Lan
Keyword(s):  
Quartz Crystal ◽  
Frequency Stability ◽  
Crystal Plate ◽  
Force Frequency ◽  
Quartz Crystal Resonator ◽  
Single Base ◽  
Frequency Property ◽  
Crystal Resonator ◽  
Oscillation Stability ◽  
Multiple Electrode

According to the oscillation characteristics of the quartz crystal resonator and the relationship between its force sensitive property and stress distribution on crystal plate, the single-base multiple-electrode quartz crystal resonator is designed. The oscillation stability of the resonator with this structure is tested by using crystal frequency stability tester. The force-frequency property of the resonators formed by electrodes on different positions of the new structure crystal plate is studied by adding radial force on it. The experimental results show that when the new structure quartz crystal resonator works driven by integrated chip, its oscillation frequency stability can reach 10-8, with the electrode thickness increasing, the oscillation stability of the resonators improves. The force-frequency property of the resonator on the different position of the same crystal plate is different, and the force-frequency coefficient has an obvious difference. The total force-frequency coefficient of the newly designed single-base three-electrode quartz crystal resonator can reach 338.8Hz/N by using mix frequency process.

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