Advances in polymer-coated surface acoustic wave gas sensor

Advances in polymer-coated surface acoustic wave gas sensor

This paper presents some advances in polymer-coated surface acoustic wave (SAW) gas sensor research towards to organophosphorous compounds detection relating to the response mechanism analysis by using some new chemically interactive materials and deposition techniques, and SAW oscillator with super...

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Bibliographic Details
Published in:2011 16th International Solid-State Sensors, Actuators and Microsystems Conference pp. 1144 - 1147
Main Authors: Shitang He, Wen Wang, Shunzhou Li, Minghua Liu
Format: Conference Proceeding
Language:English
Published: IEEE 01-06-2011
Subjects:
Attenuation
Chemicals
Coatings
High definition video
Monitoring
oscillator
PECH
Polymers
response mechanism
SAW chemical sensor
sensitivity
Surface acoustic waves
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Summary:This paper presents some advances in polymer-coated surface acoustic wave (SAW) gas sensor research towards to organophosphorous compounds detection relating to the response mechanism analysis by using some new chemically interactive materials and deposition techniques, and SAW oscillator with superior frequency stability, which are illustrated and discussed in some detail. A 300MHz SAW based delay-line-oscillator coated with PECH(Poly(epichloro-hydrin)) for HD (mustard) detection was performed, in which, a single phase unidirectional transducers (SPUDT) and combed transducer were used to structure the SAW device. The sensor experimental results confirmed the theoretical analysis, high sensitivity and good stability were observed experimentally.
ISBN:9781457701573
145770157X
ISSN:2159-547X
DOI:10.1109/TRANSDUCERS.2011.5969271