Results 111 to 120 of about 22,841 (273)

Optimizing Piezoelectric Stack Preload Bolts in Ultrasonic Transducers

Physics Procedia, 2015
AbstractThe selection of the preload bolt is often an afterthought in the design of Langevin type “sandwich” transducers, but quite often it is the root cause of failure for power ultrasonic applications. The main role of the preload bolt is to provide a “prestress” in the piezo stack to prevent interface “gapping” or tension in glued joints which can ...
DeAngelis, D.A., Schulze, G.W., Wong, K.S.   +2 more
openaire   +1 more source

Recent Progress on Flexible Multimodal Sensors: Decoupling Strategies, Fabrication and Applications

Advanced Materials, EarlyView.
In this review, we establish a tripartite decoupling framework for flexible multimodal sensors, which elucidates the underlying principles of signal crosstalk and their solutions through material design, structural engineering, and AI algorithms. We also demonstrate its potential applications across environmental monitoring, health monitoring, human ...
Tao Wu, Yu‐Tao Li, Luyu Zhao, Yi Zhang, Zhaojie Zhang, Jian Yuan, Yiwen Wu, Anqi Che, Yuanxiao Ma, Yang Chai, Yeliang Wang   +10 more
wiley   +1 more source

Bond Graph Modeling and Simulation of Hybrid Piezo-Flexural-Hydraulic Actuator

Engineering Proceedings
In this study, a hybrid piezo-flexural-hydraulic actuator is modeled and simulated using bond graph methodology. The hybrid actuator comprises piezoelectric stack actuator, mechanical flexural amplifier, and hydraulic piston actuator.
Rudraksha Kelkar, Mohith Santhya, Mithun Kanchan, Omkar S. Powar   +3 more
doaj   +1 more source

Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications

Advanced Materials, EarlyView.
This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li, Yanran Liu, Jinjin Liu, Josephine Si Yu See, Kaijian Xing, Dong‐Chen Qi, Xiao Renshaw Wang   +6 more
wiley   +1 more source

Densely distributed and real-time scour hole monitoring using piezoelectric rod sensors [PDF]

, 2019
This study aims to validate a piezoelectric driven-rod scour monitoring system that can sense changes in scour depth along the entire rod at its instrumented location.
Funderburk, Morgan L, Huang, Shieh-Kung, Loh, Chin-Hsiung, Loh, Kenneth J   +3 more
core  

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

Advanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief, Swagato Sarkar, Anik Kumar Ghosh, Osvalds Verners, Kamal Kumar Meena, Su‐Hyeong Lee, Soosang Chae, Tobias A. F. König, Beate Krause, Andreas Fery, Mehmet Sait Özer, Anindya Nag, Amit Das   +12 more
wiley   +1 more source

Stacked PZT Discs Generate Necessary Power for Bone Healing through Electrical Stimulation in a Composite Spinal Fusion Implant

Bioengineering, 2018
Electrical stimulation devices can be used as adjunct therapy to lumbar spinal fusion to promote bone healing, but their adoption has been hindered by the large battery packs necessary to provide power.
Eileen S. Cadel, Ember D. Krech, Paul M. Arnold, Elizabeth A. Friis   +3 more
doaj   +1 more source

Enhanced piezoelectric performance of the ZnO/AlN stacked nanofilm nanogenerator grown by atomic layer deposition

APL Materials, 2018
The ZnO-based nanogenerators (NGs) with a precisely controlled interlayer of AlN are fabricated based on atomic layer deposition technique, which was proved to possess an enhanced output signal. The microstructure and composition profiles of the prepared
Li-Yuan Zhu, Jian-Guo Yang, Kaiping Yuan, Hong-Yan Chen, Tao Wang, Hong-Ping Ma, Wei Huang, Hong-Liang Lu, David Wei Zhang   +8 more
doaj   +1 more source

High Quality Factor Silicon Cantilever Driven by PZT Actuator for Resonant Based Mass Detection [PDF]

, 2008
A high quality factor (Q-factor) piezoelectric lead zirconat titanate (PZT) actuated single crystal silicon cantilever was proposed in this paper for resonant based ultra-sensitive mass detection.
Ikehara, T., Itoh, Toshihiro, Lu, Jian, Maeda, Ryutaro, Mihara, Takashi, Zhang, Yi   +5 more
core   +1 more source

Field‐Effect Transistors from Artificial Charged Domain Walls in Stacked Van der Waals Ferroelectric α‐In2Se3

Advanced Materials, EarlyView.
This study utilizes the van der Waals stacking of ferroelectric α$\alpha$‐In2Se3 to fabricate in‐plane artificial charged domain walls. These charged domain walls are electrically accessible, gate‐tunable, and show 2–9 orders of magnitude higher conductance than charged domain walls from thin film ferroelectrics, allowing their integration in field ...
Shahriar Muhammad Nahid, Haiyue Dong, Gillian M. Nolan, SungWoo Nam, Nadya Mason, Pinshane Y. Huang, Arend M. van der Zande   +6 more
wiley   +1 more source