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超声导波二维阵列聚焦仿真

姚鹏娇 [1], 周世圆 [1], 于全朋 [1],
[1] 北京理工大学

为实现超声导波对零部件的遍历检测，需研究超声导波相位模态控制与空间聚焦双相控技术。本文建立了超声导波阵列传播模型，推导得到二维阵列相位模态控制与空间聚焦双相控方法，在有限元软件COMSOL中运用固体力学物理场接口 ... 扩展阅读

高性能TC-SAW谐振器

彭霄 [1],
[1] 中国电子科技集团重庆声光电公司

传统声表面波（SAW）滤波器技术存在Q值低（＜1000）和频率随工作温度漂移的特性，已经难以满足频段越来越拥挤的5G时代射频终端对滤波器的要求，因此，传统的SAW滤波器必须向具备高频率-温度稳定性的温度补偿型SAW ... 扩展阅读

MEMS-Based Capacitive Pure Bending Strain Sensor

Shashikant Verma [1], Mandeep [2], Anurekha Sharma [2], Jaideep Gupta [1]
[1] National Institutes of Technology Kurukshetra, Kurukshetra, Haryana, India
[2] Kurukshetra University, Kurukshetra, Haryana, India

MEMS (Microelectromechanical system) capacitive based pure bending strain sensor is presented for use in ... 扩展阅读

FEM Study on Contactless Excitation of Acoustic Waves in SAWDevices

A. K. Namdeo[1], N. Ramakrishna[2], H. B. Nemade[1,2], and R. P. Palathinkal[1]

[1] Department of Electronics and Communication Engineering, Indian Institute of Technology Guwahati, Assam, India
[2] Centre for Nanotechnology. Indian Institute of Technology Guwahati, Assam, India

In this paper a finite element method(FEM) study of a surface acoustic wave (SAW)device excited by ... 扩展阅读

Modeling of Near-Field Ultrasonic Levitation: Resolving Viscous and Acoustic Effects

I .F. Melikhov [1], A. S. Amosov [1], S. A. Chivilikhin [2],
[1] Corning Scientific Center, Saint Petersburg, Russia
[2] ITMO University, Saint Petersburg, Russia

Ultrasonic levitation is a novel technology for contactless handing of various objects. It is already used in ... 扩展阅读

Unbalanced Torque Signal Generation for Kinetic Energy Harvesters

L. Kurmann [1],
[1] University of Freiburg, IMTEK, Freiburg, Germany

The problem of an unbalanced mechanical torque signal generation using nonpolar repulsion techniques is ... 扩展阅读

Prediction of the Loudspeaker Total Harmonics Distortion Using COMSOL Multiphysics® Software

F. Malbos [1], M. Bogdanski [2], M. Strauss [2],
[1] Harman, Paris, France
[2] Harman Becker Automotive Systems, Straubing, Germany

For automotive applications, simulation methods are used to get the best audio acoustic performance. Because ... 扩展阅读

Fracture Toughness Evaluation for Magnetostrictive Problem using COMSOL Multiphysics®

A. Bhushan [1], Prof S.K. Panda [1],
[1] Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh, India

Even though failure due to the presence of flaws, inclusions, cracks or crack like defects has been observed ... 扩展阅读

Simulation and Testing of a Tunable Organ Pipe for Ocean Acoustic Tomography

A. K. Morozov [1],
[1] Teledyne Technologies Inc., Falmouth, MA, USA

Teledyne Marine developed a system for the long-range ocean acoustic tomography, which uses a tunable, high ... 扩展阅读

CFD Analysis of a Macroscale Ultrasonic Separator

K. Chitale [1], B. Lipkens [1, 2], W. Presz, Jr. [1],
[1] FloDesign Sonics Inc., Wilbraham, MA, USA
[2] Western New England University, Springfield, MA, USA

Macroscale ultrasonic separation is a new filtration technology, with various applications such as cell ... 扩展阅读

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