Surface acoustic wave vapor sensors based on resonator devices

Grate, Jay W.; Klusty, Mark.

doi:10.1021/ac00017a013

Cited by 116 publications

(72 citation statements)

References 57 publications

(60 reference statements)

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“…For example, most film-coated QCM devices must have specified dimensions so that a resonant bulk acoustic wave Sensors and Actuators B 82 (2002) can be maintained in the quartz crystal transducer element [15,16]. Similarly, the geometry of SAW devices is constrained by the need to sustain a Rayleigh wave of the appropriate resonant frequency at the surface of the transducer crystal [15].…”

Section: Introductionmentioning

confidence: 99%

Exploitation of spatiotemporal information and geometric optimization of signal/noise performance using arrays of carbon black-polymer composite vapor detectors

Briglin

Freund

Tokumaru

et al. 2002

Sensors and Actuators B: Chemical

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We have investigated various aspects of the geometric and spatiotemporal response properties of an array of sorption-based vapor detectors. The detectors of specific interest are composites of insulating organic polymers filled with electrical conductors, wherein the detector film provides a reversible dc electrical resistance change upon the sorption of an analyte vapor. An analytical expression derived for the signal/noise performance as a function of detector volume implies that there is an optimum detector film volume which will produce the highest signal/noise ratio for a given carbon black-polymer composite when exposed to a fixed volume of sampled analyte. This prediction has been verified experimentally by exploring the response behavior of detectors having a variety of different geometric form factors. We also demonstrate that useful information can be obtained from the spatiotemporal response profile of an analyte moving at a controlled flow velocity across an array of chemically identical, but spatially nonequivalent, detectors. Finally, we demonstrate the use of these design principles, incorporated with an analysis of the changes in detector signals in response to variations in analyte flow rate, to obtain useful information on the composition of analytes and analyte mixtures. #

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Section: Introductionmentioning

confidence: 99%

Exploitation of spatiotemporal information and geometric optimization of signal/noise performance using arrays of carbon black-polymer composite vapor detectors

Briglin

Freund

Tokumaru

et al. 2002

Sensors and Actuators B: Chemical

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“…The existing analysis approaches are usually: (a) the analysis based on the wave equation solutions [Wohltjen & Dessy, 1979;Martin et al, 1994], (b) the analysis based on published formulas derived from the wave equation [Grate & Klusty, 1991;Grate & Zellers, 2000], and (c) approximate analysis by means of equivalent electro-mechanical circuits [Živković et al, 2009]. In the first two approaches chemical SAW sensors have been analyzed mainly from the chemical point of view without giving any relations between chemical quantities and the geometry of the SAW sensor and matching conditions at its electrical ports.…”

Section: Analyses and Modelling Of Delay Line Saw Sensorsmentioning

confidence: 99%

Analysis and Modeling of Surface Acoustic Wave Chemical Vapor Sensors

Hribsek¹,

Tošić²

2010

Acoustic Waves

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“…For example, most film-coated QCM devices must have specific dimensions to successfully sustain a bulk specified dimensions so that a resonant bulk acoustic wave can be maintained in the quartz crystal transducer element. 60 ' 61 Similarly, the geometry of SAW devices is constrained by the need to sustain a Rayleigh wave of the appropriate resonant frequency at the surface of the transducer crystal. 60 Each detector in a QCM or SAW vapor detector array typically has an identical area and form factor; consequently, the array response is based solely on the different polymer/analyte sorption properties of the differing detector films.…”

Section: Introductionmentioning

confidence: 99%

A Conducting Polymer-Based Electronic Nose for Landmine Detection

Lewis¹,

Goodman²,

Grubbs³

2001

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collectior of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE (DD-MM-YYYY) SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)Sponsor: Defense Advanced Research Projects Agency (DARPA) Advanced Technology Office (Regina Dugan) 3701 North Fairfax Drive Arlington, VA 22203-1714 SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S)NATICK/TR-02/002 DISTRIBUTION/AVAILABILITY STATEMENTApproved for Public Release; Distribution Unlimited SUPPLEMENTARY NOTESMonitor: US Army Soldier and Biological Chemical Command, Soldier Systems Center, ATTN: AMSSB-RSS-D(N) (H. Girolamo), Natick, MA 01760-5020 ABSTRACTThis program was part of DARPA's "Dog Nose" initiative to develop landmine detection technology based upon the chemical signature of the mine explosive charge. The focus of this DARPA-sponsored project was to exploit the exciting breakthrough technology developed recently at Caltech that forms the basis for a low power, simple , manufacturable "electronic nose." This nose-on-a-chip involves chemically sensitive resistors, whose signals reveal the identification and concentration of vapors in a fashion analogous to that of the mammalian olfactory system. This technology has been developed into a landmine detection system, based on the characteristic chemical signature of mines, that operates in real-time through a VLSI-compatible Si process.

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Surface acoustic wave vapor sensors based on resonator devices

Cited by 116 publications

References 57 publications

Exploitation of spatiotemporal information and geometric optimization of signal/noise performance using arrays of carbon black-polymer composite vapor detectors

Exploitation of spatiotemporal information and geometric optimization of signal/noise performance using arrays of carbon black-polymer composite vapor detectors

Analysis and Modeling of Surface Acoustic Wave Chemical Vapor Sensors

A Conducting Polymer-Based Electronic Nose for Landmine Detection

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