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Piezoelectric Devices

Understanding Logging-While-Drilling Transducers with COMSOL Multiphysics® Software

R. Jiang[1], L. Mei[1], X. Liu[2], H. Li[2], Q. Zhang[1]
[1]Department of Electrical Engineering, Materials Research Institute, Pennsylvania State University, University Park, PA, USA
[2]Department of Technical Services, China Oilfield Services Limited, Yanshan, Hebei, China

Logging-while-drilling (LWD) acoustic transducers provide real-time data about the geologic and geophysical ... 扩展阅读

Long Range Ultrasonic Guided Waves for Pipelines Inspection

Á. Angulo[1], Dr. S. Soua[1]
[1]TWI Ltd, Cambridge, UK

The evaluation of defect size and nature are two most controversial topics in ultrasonic flaw detection. The ... 扩展阅读

Simple Disk Piezo Transformer Based Oscillator

J. P. Sandoz[1], J. M. Kissling[1]
[1]Institute of Applied Microtechnology, La Chaux-de-Fonds, HE‐ARC, Switzerland

In this contribution we present a COMSOL Multiphysics® example of a disk piezoelectric ceramic transformer (D ... 扩展阅读

Finite Element Analysis of Temperature and Viscosity Effects on Resonances in Thin-Film Bulk Acoustic Wave Resonators

G. Rughoobur[1], M. DeMiguel-Ramos[2], L. García-Gancedo[1], M. Clement[2], J. Olivares[2], T. Mirea[2], W. I. Milne[1], E. Iborra[2], A. J. Flewitt[1]
[1]University of Cambridge, Cambridge, UK
[2]Universidad Politécnica de Madrid, Madrid, Spain

The shear mode of film bulk acoustic resonators (FBARs) is preferred to the longitudinal mode owing to its ... 扩展阅读

Simulation of Cascaded Thermoelectric Devices for Cryogenic Medical Treatment

P. Aliabadi[1], S. Mahmoud[1], R. K. AL-Dadah[1]
[1]Mechanical Engineering Department, University of Birmingham, Birmingham, UK

This study is focused on using a thermoelectric device (TED) as an alternative to the cryogenic liquid for ... 扩展阅读

MEMS Acoustic Pixel

A. Arevalo[1], I. G. Foulds[2]
[1]King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
[2]The University of British Columbia, Vancouver, BC, Canada

A COMSOL Multiphysics® simulation was used to simulate the behavior of a micro-membrane (Acoustic Pixel) to ... 扩展阅读

Heat Drain Device on Ultrasound Imaging Probe

G. Vigna[1], L. Spicci[1]
[1]Esaote SPA, Florence, Italy

Self-heating is a problem to consider for Ultrasound Imaging probes. Since the probe is in contact with the ... 扩展阅读

Modeling of Ultrasonic Transducers and Ultrasonic Wave Propagation for Commercial Applications Using Finite Elements with Experimental Visualization of Waves for Validation

D. R. Andrews[1]
[1]Cambridge Ultrasonics, Over, UK

Finite element (FE) modelling of ultrasonic propagation using COMSOL Multiphysics® simulations can be used to ... 扩展阅读

Study & Modeling of 'Acoustic Matching Layers' for Ultrasound Imaging Probes Through Pulse-Echo FEM Simulation

L. Spicci[1]
[1]Esaote SpA, Florence, Italy

Ultrasound Imaging probes are specific devices that require a very detailed design of acoustic impedance ... 扩展阅读

COMSOL Multiphysics® Software for Simulation of Surface Response to Excitation Method for Manufacturing Process Performance Monitoring

H. Fekrmandi[1], N. Miniello[1], R. Kiflemariam[1], I. Nur Tansel[1]
[1]Mechanical & Materials Engineering Department, Florida International University, Miami, FL, USA

In this study, COMSOL Multiphysics® software was used to simulate the surface response to excitation method ... 扩展阅读

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