Results 31 to 40 of about 18,389 (292)

ST Quartz Acoustic Wave Sensors with Sectional Guiding Layers

open access: yes, 2008
We report the effect of removing a section of guiding layer from the propagation paths of ST-quartz Love wave sensors; this offers the ease of fabrication of a polymer guiding layer whilst retaining the native surface of the quartz which may then be used
Michael I. Newton   +9 more
core   +1 more source

Resonant Frequency Characteristics of a SAW Device Attached to Resonating Micropillars

open access: yesSensors, 2012
Recently we reported experimental and simulation results on an increase in resonance frequency of a SAW resonator caused by mass loading of micropillars made of SU-8, attached normal to the surface of the resonator.
Roy Paily Palathinkal   +2 more
doaj   +1 more source

Sub- and supersonic elastic waves in an annular hole phononic metamaterial

open access: yesCommunications Materials, 2021
Surface acoustic waves are important in a wide range of applications such as telecommunication filters, sensors, and microfluidic devices. Here, patterning of a phononic metamaterial formed of annular hole resonators enables frequency control of the ...
Caroline Pouya, Geoff R. Nash
doaj   +1 more source

SU-8 Guiding Layer for Love Wave Devices

open access: yes, 2007
SU-8 is a technologically important photoresist used extensively for the fabrication of microfluidics and MEMS, allowing high aspect ratio structures to be produced.
Nicola Doy   +15 more
core   +1 more source

Mass sensitivity of acoustic wave devices from group and phase velocity measurements [PDF]

open access: yes, 2002
The effect of dispersion on acoustic wave sensors is considered. The discussion is focused upon layer guided surface acoustic waves (Love waves), which obtain their high mass sensitivity for the first Love wave mode by optimizing the guiding layer ...
Newton, Michael   +8 more
core   +1 more source

Surface acoustic wave photonic devices in silicon on insulator

open access: yesNature Communications, 2019
The authors implement surface acoustic waves on the silicon photonics platform by exciting a metallic grating with modulated pump light to enable microwave-photonic devices without the need for piezo-electric actuation, complex suspensions or hybrid ...
Dvir Munk   +8 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Telemetric surface acoustic wave sensor for humidity [PDF]

open access: yesAdvances in Radio Science, 2003
Surface acoustic wave sensors consist of a piezoelectric substrate with metal interdigital transducers (IDT) on top. The acoustic waves are generated on the surface of the substrate by a radio wave, as it is well known in band pass filters.
M. Dierkes, U. Hilleringmann
doaj  

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle   +3 more
wiley   +1 more source

Layer guided shear horizontally polarized acoustic plate modes

open access: yes, 2002
The theoretical basis describing Love waves propagating on a finite thickness substrate covered by a finite thickness solid layer having a lower shear acoustic speed is considered.
Newton, Michael   +8 more
core   +1 more source

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