Results 71 to 80 of about 4,611 (167)

Room-Temperature NH₃ Gas Surface Acoustic Wave (SAW) Sensors Based on Graphene/PPy Composite Films Decorated by Au Nanoparticles with ppb Detection Ability. [PDF]

Polymers (Basel), 2023
Shen CY, Hung TT, Chuang YW, Lai SK, Tai CM.   +4 more
europepmc   +1 more source

A Finite Element Model of a MEMS-based Surface Acoustic Wave Hydrogen Sensor

Sensors, 2010
Hydrogen plays a significant role in various industrial applications, but careful handling and continuous monitoring are crucial since it is explosive when mixed with air. Surface Acoustic Wave (SAW) sensors provide desirable characteristics for hydrogen
Walied A. Moussa, Mohamed M. EL Gowini
doaj   +1 more source

Design of Low-Loss Acoustic Delay Lines Enabled by Dual-Mode Interface Acoustic Waves in SiO₂/ZnO/IDT/SU-8/SiO₂ Structures

Micromachines
The present work explores the modelling and design of Interface Acoustic Wave (IAW)-based delay lines in SiO2/ZnO (4 µm)/SU-8/SiO2 multilayer stacks and demonstrates that, by properly tailoring the acoustic wavelength and the SU-8 layer thickness, IAW ...
Cinzia Caliendo, Farouk Laidoudi, Fabio Lo Castro   +2 more
doaj   +1 more source

Finite-element analysis of scattering parameters of surface acoustic wave bandpass filter formed on barium titanate thin film

International Journal of Smart and Nano Materials, 2018
The frequency dependence of scattering parameters of interdigital surface acoustic wave transducers placed on ferroelectric barium titanate (BaTiO3) epitaxial film in c-phase coated over magnesium oxide has been studied using the finite-element method ...
Pavel E. Timoshenko, Valery V. Kalinchuk, Vladimir B. Shirokov   +2 more
doaj   +1 more source

Mode Characterization and Sensitivity Evaluation of a Surface Acoustic Wave (SAW) Resonator Biosensor: Application to the Glial-Fibrillary-Acidic-Protein (GFAP) Biomarker Detection. [PDF]

Micromachines (Basel), 2023
Passeri AM, Lunardelli F, Cavariani D, Cecchini M, Agostini M.   +4 more
europepmc   +1 more source

FEM Analysis of Sezawa Mode SAW Sensor for VOC Based on CMOS Compatible AlN/SiO2/Si Multilayer Structure

Sensors, 2018
A Finite Element Method (FEM) simulation study is conducted, aiming to scrutinize the sensitivity of Sezawa wave mode in a multilayer AlN/SiO2/Si Surface Acoustic Wave (SAW) sensor to low concentrations of Volatile Organic Compounds (VOCs), that is ...
Muhammad Zubair Aslam, Varun Jeoti, Saravanan Karuppanan, Aamir Farooq Malik, Asif Iqbal   +4 more
doaj   +1 more source

Surface Acoustic Wave (SAW) Sensors for Hip Implant: A Numerical and Computational Feasibility Investigation Using Finite Element Methods. [PDF]

Biosensors (Basel), 2023
Hafizh M, Soliman MM, Qiblawey Y, Chowdhury MEH, Islam MT, Musharavati F, Mahmud S, Khandakar A, Nabil M, Nezhad EZ.   +9 more
europepmc   +1 more source

A Surface Acoustic Wave (SAW) Pressure Sensor Evaluation [PDF]

, 1980
Abstract : The objective of this project was to evaluate the performance of surface acoustic wave (SAW) oscillators for potential application to SAW sonobuoys. The tests included the following: (1) oscillator frequency and time domain stability, (2) static loading sensitivity tests, and (3) underwater sensitivity and frequency response tests performed ...
openaire   +1 more source

Rigorous P-matrix for uniform NSPUDT

Archives of Acoustics, 2014
A rigorous scattering matrix in mixed representation (P-Matrix) is presented for natural single-phase unidirectional transducer (NSPUDT) of surface acoustic wave (SAW).
E. DANICKI
doaj  

The propagation characteristics of acoustic surface waves and the applications of power ultrasound based on AlN/GaN piezoelectric thin films

Ultrasonics Sonochemistry
To address the growing need for high-frequency tunable surface acoustic wave (SAW) devices in power ultrasound applications, this study uses finite element method (FEM) for designing and simulation of an AlN/GaN composite heterogeneous piezoelectric thin
Tao Zhang, Wei Ming, Zhijing Wen, Hira Yousaf, Pengjie Gong, Lekang Li   +5 more
doaj   +1 more source