scholarly journals Perturbation Analysis of a Multiple Layer Guided Love Wave Sensor in a Viscoelastic Environment

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4533 ◽  
Author(s):  
Tao Wang ◽  
Ryan Murphy ◽  
Jing Wang ◽  
Shyam S. Mohapatra ◽  
Subhra Mohapatra ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Liquid Layer ◽  
Perturbation Analysis ◽  
Love Wave ◽  
Low Cost ◽  
Maxwell Model ◽  
Theoretical Models ◽  
Fast Response ◽  
Liquid Environment

Surface acoustic wave sensors have the advantage of fast response, low-cost, and wireless interfacing capability and they have been used in the medical analysis, material characterization, and other application fields that immerse the device under a liquid environment. The theoretical analysis of the single guided layer shear horizontal acoustic wave based on the perturbation theory has seen developments that span the past 20 years. However, multiple guided layer systems under a liquid environment have not been thoroughly analyzed by existing theoretical models. A dispersion equation previously derived from a system of three rigidly coupled elastic mass layers is extended and developed in this study with multiple guided layers to analyze how the liquid layer’s properties affect the device’s sensitivity. The combination of the multiple layers to optimize the sensitivity of an acoustic wave sensor is investigated in this study. The Maxwell model of viscoelasticity is applied to represent the liquid layer. A thorough analysis of the complex velocity due to the variations of the liquid layer’s properties and thickness is derived and discussed to optimize multilayer Surface acoustic wave (SAW) sensor design. Numerical simulation of the sensitivity with a liquid layer on top of two guided layers is investigated in this study as well. The parametric investigation was conducted by varying the thicknesses for the liquid layer and the guided layers. The effect of the liquid layer viscosity on the sensitivity of the design is also presented in this study. The two guided layer device can achieve higher sensitivity than the single guided layer counterpart in a liquid environment by optimizing the second guided layer thickness. This perturbation analysis is valuable for Love wave sensor optimization to detect the liquid biological samples and analytes.

scholarly journals Hybrid Sensor Device for Simultaneous Surface Plasmon Resonance and Surface Acoustic Wave Measurements

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6177
Author(s):  
Anastasios G. Samarentsis ◽  
Alexandros K. Pantazis ◽  
Achilleas Tsortos ◽  
Jean-Michel Friedt ◽  
Electra Gizeli
Keyword(s):  
Surface Plasmon Resonance ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Love Wave ◽  
Future Application ◽  
Label Free ◽  
Combined System ◽  
Wave Measurements

Surface plasmon resonance (SPR) and Love wave (LW) surface acoustic wave (SAW) sensors have been established as reliable biosensing technologies for label-free, real-time monitoring of biomolecular interactions. This work reports the development of a combined SPR/LW-SAW platform to facilitate simultaneous optical and acoustic measurements for the investigation of biomolecules binding on a single surface. The system’s output provides recordings of two acoustic parameters, phase and amplitude of a Love wave, synchronized with SPR readings. We present the design and manufacturing of a novel experimental set-up employing, in addition to the SPR/LW-SAW device, a 3D-printed plastic holder combined with a PDMS microfluidic cell so that the platform can be used in a flow-through mode. The system was evaluated in a systematic study of the optical and acoustic responses for different surface perturbations, i.e., rigid mass loading (Au deposition), pure viscous loading (glycerol and sucrose solutions) and protein adsorption (BSA). Our results provide the theoretical and experimental basis for future application of the combined system to other biochemical and biophysical studies.

Passive Impedance-Loaded Surface Acoustic Wave (SAW) Sensor for Soil Condition Monitoring

2020 ◽  
Author(s):  
Jian Chu ◽  
Ioana Voiculescu ◽  
Ziqian Dong ◽  
Fang Li
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Condition Monitoring ◽  
Low Cost ◽  
Soil Condition ◽  
Nutrient Sensing ◽  
Soil Conditions ◽  
Large Area ◽  
Saw Sensor ◽  
Loaded Surface

Abstract This paper presents an innovative system to monitor the physical soil conditions needed for modern agriculture. The current technique to measure soil properties relies on taking samples from place to place and takes them for laboratory testing. To build up and monitor a data-based system for a large area, such a method is costly and time-consuming. This paper reported our recent work on the development of a passive impedance-loaded surface acoustic wave (SAW) sensor for a low-cost soil condition monitoring system. The SAW sensor will eventually be connected to an antenna and a impedance-based sensor for autonomous soil nutrient sensing. In this research, first, the coupling-of-modes (COM) analysis was performed to simulate the SAW device. The sensors were fabricated with E-beam lithography techniques and tested with different external load resistances. We investigated how the sensor signal changed with the external resistance loading. The experimental results were verified by comparing them with simulation results.

Application and Design of Surface Acoustic Wave Based Radio Frequency Identification Tags

2010 ◽  
pp. 97-112
Author(s):  
Han Tao ◽  
Shui Yongan
Keyword(s):  
Acoustic Wave ◽  
Radio Frequency ◽  
Surface Acoustic Wave ◽  
Time Domain ◽  
Radio Frequency Identification ◽  
Integrated Circuit ◽  
Low Cost ◽  
Fundamental Principle ◽  
Frequency Identification ◽  
Identification Tags

This chapter overviews a complementary technology to the integrated circuit based radio frequency identification (RFID)---- Surface Acoustic Wave (SAW) based RFID. The fundamental principle and applications of SAW RFID are presented. In order to guarantee the encoding capacity and reliable reading range, the design criteria in coding scheme, tag design and a time domain interrogated reader design are discussed in detail. As an example, a low-cost SAW RFID system applied in poultry farming management is introduced.

Simulations, fabrication, and characterization of diamond-coated Love wave-type surface acoustic wave sensors

2015 ◽  
Vol 212 (11) ◽  
pp. 2606-2610 ◽  
Author(s):  
A. Talbi ◽  
A. Soltani ◽  
A. Rumeau ◽  
A. Taylor ◽  
L. Drbohlavová ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Love Wave ◽  
Wave Type ◽  
Acoustic Wave Sensors ◽  
Fabrication And Characterization ◽  
Wave Sensors

scholarly journals On the Development of Focused Ultrasound Liquid Atomizers

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Ahmed M. Al-Jumaily ◽  
Ata Meshkinzar
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Focused Ultrasound ◽  
Low Cost ◽  
Industrial Applications ◽  
Ultrasonic Transducers ◽  
Central Channel

This paper reviews the evolution of focused ultrasonic transducers of various kinds for fluid atomization and vaporization. Ultrasonic transducers used for atomization purposes in biomedical, pharmaceutical, or industrial applications, such as surface acoustic wave (SAW) transducers, array of micromachined nozzles, and Fourier horn micromachined nozzles with or without a central channel, are all presented and compared. For simplicity of manufacturing and low cost, we focus on plates and curved and corrugated structures for biomedical humidification.

scholarly journals Portable Low-Cost Electronic Nose Based on Surface Acoustic Wave Sensors for the Detection of BTX Vapors in Air

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5406 ◽  
Author(s):  
Daniel Matatagui ◽  
Fabio Andrés Bahos ◽  
Isabel Gràcia ◽  
María del Carmen Horrillo
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Electronic Nose ◽  
Low Cost ◽  
Excellent Performance ◽  
Low Concentrations ◽  
Acoustic Wave Sensors ◽  
Benzene Toluene ◽  
Wave Sensors ◽  
First Time

A portable electronic nose based on surface acoustic wave (SAW) sensors is proposed in this work to detect toxic chemicals, which have a great potential to threaten the surrounding natural environment or adversely affect the health of people. We want to emphasize that ferrite nanoparticles, decorated (Au, Pt, Pd) and undecorated, have been used as sensitive coatings for the first time in these types of sensors. Furthermore, the proposed electronic nose incorporates signal conditioning and acquisition and transmission modules. The electronic nose was tested to low concentrations of benzene, toluene, and xylene, exhibiting excellent performance in terms of sensitivity, selectivity, and response time, indicating its potential as a monitoring system that can contribute to the detection of toxic compounds.

scholarly journals Fabrication of Low Cost Surface Acoustic Wave Sensors Using Direct Printing by Aerosol Inkjet

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 20907-20915 ◽  
Author(s):  
Marissa E. Morales-Rodriguez ◽  
Pooran C. Joshi ◽  
James R. Humphries ◽  
Peter L. Fuhr ◽  
Timothy J. Mcintyre
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Low Cost ◽  
Direct Printing ◽  
Acoustic Wave Sensors ◽  
Cost Surface ◽  
Wave Sensors

Fast-response surface acoustic wave humidity sensor based on hematoporphyrin film

2009 ◽  
Vol 137 (2) ◽  
pp. 592-596 ◽  
Author(s):  
R. Rimeika ◽  
D. Čiplys ◽  
V. Poderys ◽  
R. Rotomskis ◽  
M.S. Shur
Keyword(s):  
Acoustic Wave ◽  
Response Surface ◽  
Surface Acoustic Wave ◽  
Humidity Sensor ◽  
Fast Response
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