AI Article Synopsis
- The study analyzes high-frequency vibrations in piezoelectric bulk acoustic wave sensors made from crystals with a 3m symmetry group, using Mindlin's first-order plate theory to establish spectral-frequency relationships and optimal length-thickness ratios.
- It examines dynamic capacitance through forced vibration analysis and identifies resonance modes for effective energy trapping, while also calculating frequency interferences between resonator units and their dependency on spacing and electrode width.
- The findings reveal that increasing electrode spacing reduces safe distances between resonator units and that equal spacing yields the largest safe distance, with theoretical results supported by finite element methods for design optimization of piezoelectric sensors.
Article Abstract
Based on Mindlin's first-order plate theory, the high-frequency vibrations of piezoelectric bulk acoustic wave array sensors under lateral-field-excitation based on crystals with 3 m point group are analyzed, and the spectral-frequency relationships are solved, based on which, the optimal length-thickness ratio of the piezoelectric crystal plate is determined. Then, the dynamic capacitance diagram is obtained by a forced vibration analysis of the piezoelectric crystal plate. The resonant mode conforming to good energy trapping is further obtained. The frequency interferences between different resonator units are calculated, and the influences of the spacing between two resonant units on the frequency interference with different electrode widths and spacings are analyzed. Finally, the safe spacings between resonator units are obtained. As the electrode spacing value of the left unit increases, the safe spacing between the two resonator units decreases, and the frequency interference curve tends to zero faster. When the electrode spacings of two resonator units are equal, the safe distance is largest, and the frequency interference curve tends to zero slowest. The theoretical results are verified further by finite element method. The analysis model of high frequency vibrations of strongly coupled piezoelectric bulk acoustic array device based on LiTaO crystals with 3 m point group proposed in this paper can provide reliable theoretical guidance for size optimization designs of strongly coupled piezoelectric array sensors under lateral-field-excitation.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9099703 | PMC |
| http://dx.doi.org/10.3390/s22093596 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The Photocatalytic Degradation of Enrofloxacin Using an Ecofriendly Natural Iron Mineral: The Relationship Between the Degradation Routes, Generated Byproducts, and Antimicrobial Activity of Treated Solutions.
Molecules
December 2024
Grupo de Investigación Agua y Salud Ambiental, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, 50018 Zaragoza, Spain.
The use of ecofriendly natural minerals in photocatalytic processes to deal with the antimicrobial activity (AA) associated with antibiotics in aqueous systems is still incipient. Therefore, in this work, the capacity of a natural iron material (NIM) in photo-treatments, generating reactive species, to remove the antibiotic enrofloxacin and decrease its associated AA from water is presented. Initially, the fundamental composition, oxidation states, bandgap, point of zero charge, and morphological characteristics of the NIM were determined, denoting the NIM's feasibility for photocatalytic processes.
View Article and Find Full Text PDFBleomycin sclerotherapy for venous vascular malformations of the tongue.
J Neurointerv Surg
January 2025
Division of Neuroradiology, Toronto Western Hospital, Joint Department of Medical Imaging, University Health Network, University of Toronto, Toronto, Ontario, Canada.
Background: Venous vascular malformations (VVMs) are congenital vascular anomalies, often impacting quality of life due to discomfort, swelling, and functional impairments. This study evaluates the efficacy of bleomycin sclerotherapy as a treatment for symptomatic VVMs of the tongue.
Methods: We conducted a retrospective review of all patients treated with this method in our institution between 2004 and 2024.
Preparation of Cello-Oligosaccharides by Precise-Controlled Enzymatic Depolymerization and Its Amphiphilic Functionalization for High-Oil Load Emulsification.
J Agric Food Chem
January 2025
Department of Biological and Chemical Engineering, Faculty of Technical Science, Aarhus University, Gustav Wieds Vej 10C, 8000Aarhus,Denmark.
Cello-oligosaccharides (COS) are gaining great attention for their prebiotic-like properties, e.g., boosting gut health by promoting beneficial bacteria and improving digestion.
View Article and Find Full Text PDFImaging abnormalities of the acromioclavicular joint and subacromial space are common in asymptomatic shoulders: a systematic review.
J Orthop Surg Res
January 2025
School of Public Health and Preventive Medicine, Musculoskeletal Health and Wiser Health Care Units, Monash University, Melbourne, VIC, Australia.
Objectives: To determine the prevalence of acromioclavicular (AC) joint and subacromial space imaging abnormalities in asymptomatic adults, with a secondary objective of comparing findings between asymptomatic and symptomatic shoulders within the same study populations.
Methods: We conducted a systematic review of studies examining shoulder imaging abnormalities detected by X-ray, ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI) in asymptomatic adults (PROSPERO registration CRD42018090041). This report focuses on AC joint and subacromial space abnormalities.
Designing Hybrid Plasmonic Superlattices with Spatially Confined Responsive Heterostructural Units.
Nano Lett
January 2025
State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P.R. China.
Plasmonic superlattices enable the precise manipulation of electromagnetic fields at the nanoscale. However, the optical properties of static lattices are dictated by their geometry and cannot be reconfigured. Here, we present a surface-interface engineered plasmonic superlattice with confined polyelectrolyte-functionalized metal-organic framework (MOF) hybrid layers to tune plasmon resonance for ultrafast chemical sensing.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!