Results 231 to 240 of about 68,309 (276)

Temperature-compensated Love-wave sensors on quartz substrates

Sensors and Actuators A: Physical, 2000
Love wave-based microacoustic sensors are suitable for sensing applications in the liquid phase, where conventional Rayleigh surface acoustic wave sensors cannot be used. Typically, they yield even higher sensitivities than comparable Rayleigh SAW devices offer in gas sensing. Up to now, Love-wave devices have been realized using commercially available
Bernhard Jakoby, Jeroen Bastemeijer, Michael J Vellekoop   +2 more
openaire   +1 more source

Love wave acoustic sensor for testing in liquids

SPIE Proceedings, 2001
Love wave is one type of the surface acoustic waves (SAWs). It is guided acoustic mode propagating in ta thin layer deposited on a substrate. Because of its advantages of high mass sensitivity, low noise level and being fit for operating in liquids, Love wave acoustic sensors have become one of the hot spots in the research of biosensor nowadays.
Haifeng Pan, Huizhong Zhu, Guanping Feng
openaire   +1 more source

Love-Wave Sensor Coated with a Mesoporous Material

ECS Meeting Abstracts, 2006
Abstract not Available.
Florence Anne Razan, Dominique Rebiere, Corinne Dejous, Bertrand Pavageau, Mathias Destarac, Cedric Boissiere, David Grosso, Clement Sanchez   +7 more
openaire   +1 more source

Reducing the temperature sensitivity of Love-wave sensors

1998 IEEE Ultrasonics Symposium. Proceedings (Cat. No. 98CH36102), 2002
Love waves are very advantageous for liquid sensing applications. Using a Love wave delay line as feedback element in an oscillator, allows to determine surface mass depositions on the delay line with high accuracy by monitoring oscillation frequency changes.
B. Jakoby, M.J. Vellekoop
openaire   +1 more source

Performance analysis and experiment of Love wave sensor

Optics and Precision Engineering, 2011
In order to obtain a high sensitive Love wave mass sensor,the Love wave propagation characteristics in a layered structure consisting of a ST-quartz and a silica were investigated theoretically and experimentally on the basis of acoustic dynamics,the wave equation for the layered structure was analyzed and its displacement and the dispersion curves ...
苗圃 MIAO Pu, 李锋 LI Feng, 张平 ZHANG Ping, 刘永顺 LIU Yong-shun, 毕晓猛 BI Xiao-meng, 吴一辉 WU Yi-hui   +5 more
openaire   +1 more source

Love wave surface acoustic wave sensor for ice detection on aircraft

The Journal of the Acoustical Society of America, 1999
This paper presents the design, fabrication, experimental results, and theoretical validation of a Love wave surface acoustic wave sensor for detecting the phase change from liquid water to solid ice. The sensing of this phase transition is due to the shear horizontal nature of Love waves which couple to a solid (ice) but not to a liquid (water).
Vasundara V. Varadan, Sunil Gangadharan, Vijay K. Varadan   +2 more
openaire   +1 more source

Love wave toluene sensor based on multi-guiding layers

2017 Spanish Conference on Electron Devices (CDE), 2017
A novel Love-wave sensor based on multi-guiding layers, SiO 2 layer and indium tin oxide (ITO) nanoparticle layer, was developed. The ITO nanoparticles worked as guiding and sensitive layers at the same time. The interaction between ITO nanoparticles and toluene molecules produced changes in elastic properties of nanoparticles and consequently the ...
D. Matatagui, M.J. Fernandez, J.L. Fontecha, J.P. Santos, I. Sayago, M.C. Horrillo, I. Gracia, J. Lozano   +7 more
openaire   +1 more source

Passive and remote polymer-coated Love wave chemical sensor

2008 IEEE Ultrasonics Symposium, 2008
This paper presents a passive and remote polymer- coated Love wave chemical sensor. A ST-90degX quartz was used as the substrate, which provides a shear horizontal surface acoustic wave (SH-SAW) with high shear velocity and larger piezoelectricity. A layer of polymethylmethacrylate (PMMA) was considered as the guiding layer owing to its lower shear ...
null Wen Wang, null Shitang He
openaire   +1 more source

A Dual Love wave and Impedance-based Sensor: Response Enrichment

2020 IEEE SENSORS, 2020
This article presents a new approach for the analysis of the electroacoustic response of an acoustic transducer allowing the easy extraction of the dielectric and viscoelastic properties of liquid samples. In this study, different measurements of liquid samples with different physical parameters such as electrical permittivity, viscosity, and density ...
Maxence RUBE, Ollivier TAMARIN, Martine SEBELOUE, Hamida HALLIL, Laurent LINGUET, Dominique REBIERE, Corinne DEJOUS   +6 more
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Acoustic love-wave sensor for K+ concentration in H2O solutions

Sensors and Actuators B: Chemical, 1992
Abstract An acoustic delay-line sensor for the detection of K + ion concentrations in water solutions is described. It uses shear horizontal (SH) acoustic plate modes propagating in plates in order to minimize acoustic energy loss in the liquid. The device consists of a quartz plate with one of the free surfaces covered with a thin membrane that ...
Caliendo, C, Verona, E, D'AMICO, ARNALDO, Mascini, M, MOSCONE DINIA, DANILA   +4 more
openaire   +3 more sources