TITLE

Multimode and multifrequency gigahertz surface acoustic wave sensors

AUTHOR(S)
Seidel, Werner; Hesjedal, Thorsten
PUB. DATE
February 2004
SOURCE
Applied Physics Letters;2/23/2004, Vol. 84 Issue 8, p1407
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A simple surface acoustic wave sensor system is presented that combines the advantages of multifrequency/multimode operation and GHz frequencies in a single acoustic device structure. Analyzing multiple frequencies and modes is the basis for the multicomponent analysis of gases and liquids. The sensor system is based on floating electrode unidirectional transducers that allow efficient excitation of two modes and up to 48 harmonics (or 5 GHz). It can be fabricated without the need of costly nanofabrication techniques. Higher sensor frequencies are advantageous as the sensitivity increases with the frequency. We tested the basic operation of our sensor system by applying it to humidity sensing without a sensitive layer. © 2004 American Institute of Physics.
ACCESSION #
12292633

 

Related Articles

  • Emission of acoustic waves by nonlinear drop oscillations. Alabuzhev, A. A.; Shklyaev, S. // Physics of Fluids;Apr2007, Vol. 19 Issue 4, p047102 

    The paper deals with the calculation of the emission of monopole and dipole modes of acoustic waves in a gas generated by nonlinear drop oscillations. Assuming that the density of the gas is much smaller than that of the liquid, we show that the amplitudes of these two modes strongly depend on...

  • A New Self-Calibrated Procedure for Impact Detection and Location on Flat Surfaces. Somolinos, José A.; López, Amable; Morales, Rafael; Morón, Carlos // Sensors (14248220);Jun2013, Vol. 13 Issue 6, p7104 

    Many analyses of acoustic signals processing have been proposed for different applications over the last few years. When considering a bar-based structure, if the material through which the sound waves propagate is considered to be acoustically homogeneous and the sound speed is well known, then...

  • Fast Response and High Sensitivity ZnO/glass Surface Acoustic Wave Humidity Sensors Using Graphene Oxide Sensing Layer. Weipeng Xuan; Mei He; Nan Meng; Xingli He; Wenbo Wang; Jinkai Chen; Tianjin Shi; Tawfique Hasan; Zhen Xu; Yang Xu; J. K. Luo // Scientific Reports;11/28/2014, p1 

    We report ZnO/glass surface acoustic wave (SAW) humidity sensors with high sensitivity and fast response using graphene oxide sensing layer. The frequency shift of the sensors is exponentially correlated to the humidity change, induced mainly by mass loading effect rather than the complex...

  • X-ray imaging of surface acoustic waves generated in semiconductor crystals by an external transducer. Shilo, D.; Lakin, E.; Zolotoyabko, E.; Härtwig, J.; Baruchel, J. // Applied Physics Letters;3/3/2003, Vol. 82 Issue 9, p1374 

    We demonstrate successful x-ray-diffraction imaging of high-frequency (0.29-GHz) surface acoustic waves (SAWs) propagating in semiconductor crystals (Si and GaAs) with no deposited electrodes on top of them. Experiments were performed at the ID19 beamline of the European Synchrotron Radiation...

  • Erratum.  // Journal of Applied Physics;2015, Vol. 118 Issue 4, p1 

    A correction to the article "Dynamic acoustic tractor beams," by F. G. Mitri, that was published in a 2015 issue of the periodical is presented.

  • Measure Relative Humidity With A PIC MCU. Jiménez, Ricardo; Angulo, Claudia A. // Electronic Design;3/17/2005, Vol. 53 Issue 6, p79 

    This article focuses on a measure of relative humidity with a PIC MCU. A relative humidity meter can be built using a sensor with a capacitive response and a PlC microcontroller as shown in the figure. The capacitance range of the sensor, the HS11O1 from Humirel varies from 162 to 202 pF....

  • Dynamic Properties of Wide-Range Piezosorption Sensors for Humidity in Organic Liquids. Lipnin, Yu.; Mazur, V.; Pudalov, A. // Measurement Techniques;Oct2014, Vol. 57 Issue 7, p833 

    A design is proposed for a wide-range piezosorption sensor for humidity in organic liquids based on the use of two sorbents on a single quartz plate. The most efficient way of depositing the sorbents on the plate is determined on the basis of an analysis of the dynamic sensitivity...

  • Finite element analysis and experimental study of surface acoustic wave propagation through two-dimensional pillar-based surface phononic crystal. Yankin, S.; Talbi, A.; Du, Y.; Gerbedoen, J.-C.; Preobrazhensky, V.; Pernod, P.; Bou Matar, O. // Journal of Applied Physics;2014, Vol. 115 Issue 24, p244508-1 

    We study both theoretically and experimentally the interaction of surface elastic waves with 2D surface phononic crystal (PnC) on a piezoelectric substrate. A rigorous analysis based on 3D finite element method is conducted to calculate the band structure of the PnC and to analyze the...

  • A low-power ultra-light small and medium size acoustic wave touch screen. Xiong Hao; Huang Kui // Applied Mechanics & Materials;2014, Issue 513-517, p4072 

    Traditional surface acoustic wave touch screen causes high power consumption. The controller that needs to generate driving sound transducer voltage leads to large volume and high cost. It is difficult to become integration of the controller and small and medium size portable information...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics