Interdigital sensors and transducers [PDF]
Proceedings of the IEEE, 2004 This review paper focuses on interdigital electrodes-a geometric structure encountered in a wide variety of sensor and transducer designs. Physical and chemical principles behind the operation of these devices vary so much across different fields of science and technology that the common features present in all devices are often overlooked.
Alexander V. Mamishev +4 more
exaly +6 more sources
Matching Network Design for Ultrasonic Guided Wave Interdigital Transducers [PDF]
SensorsUltrasonic guided wave interdigital transducers realized with piezoelectric materials are of interest for structural health monitoring systems because of their capability of performing Lamb wave mode selection with respect to single-element transducers ...
Lorenzo Capineri
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A Comparative Study of Divergent Surface Acoustic Wave Beams’ Generation on an Y128° Lithium Niobate Using Various Types of Interdigital Transducers [PDF]
SensorsThis study focuses on the possibility of generating divergent surface acoustic waves (SAWs) with interdigital transducers (IDTs) deposited on Y128° Lithium Niobate for non-destructive testing applications, particularly in the context of manufacturing ...
Marc Duquennoy +7 more
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Analysis of Acoustic Surface Wave Focused Unidirectional Interdigital Transducers Using Coupling-of-Mode Theory [PDF]
MicromachinesIn cell or droplet separation, high acoustic wave energy of a surface acoustic wave (SAW) device is required to generate sufficient acoustic radiation force.
Guopeng Hui +4 more
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Suppressing acoustomigration and temperature rise for high-power robust acoustics [PDF]
Nature CommunicationsHigh-frequency acoustic wave transducers, favored for their compact size, are not only dominating mobile handsets but are also expanding into various interdisciplinary fields.
Fangsheng Qian +8 more
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Influence of Various Liquids on Characteristics of Backward A1 Lamb Wave in YX LiNbO3 Plate: Theory and Experiment [PDF]
SensorsIn this work, the effect of liquids with different dielectric permittivities and acoustic impedances on the characteristics of the backward antisymmetric A1 Lamb wave propagating in a YX LiNbO3 plate was investigated theoretically, numerically and ...
Andrey Smirnov +2 more
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Multidimensional control of surface acoustic wave generation via programmable interdigital transducer arrays [PDF]
Nature CommunicationsFixed interdigital transducers (IDTs) are commonly limited to only generate a single type of surface acoustic wave (SAW). Here, we present a programmable IDT array architecture for multidimensional SAW generation, based on standard and chirped IDT array ...
Zongjun Ma +9 more
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Acoustofluidic Tweezers Integrated with Droplet Sensing Enable Multifunctional Closed‐Loop Droplet Manipulation [PDF]
Advanced ScienceDroplet manipulation technologies with surface acoustic waves attract significant attention for applications in fluid handling and bioanalysis. However, existing technologies face challenges in automation, precision, and functional integration, limiting ...
Mingyang Sui +5 more
doaj +2 more sources
Extended topological valley-locked surface acoustic waves
Nature Communications, 2022 Here the authors provide experimental evidence of extended topological valley-locked states. By splicing together Dirac semimetals and topological insulators, they demonstrate reduced backscattering and enhanced matching of SAW with interdigital ...
Ji-Qian Wang +11 more
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Switchable Transducers in GaN MEMS Resonators: Performance Comparison and Analysis
Micromachines, 2021 This work presents a comprehensive comparison of switchable electromechanical transducers in an AlN/GaN heterostructure toward the goal of reconfigurable RF building blocks in next-generation ad hoc radios.
Imtiaz Ahmed, Dana Weinstein
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