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Development of a surface acoustic wave sensor array for the detection of methanol in fuel vapours

✍ Scribed by J. Reichert; W. Coerdt; H.J. Ache

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
319 KB
Volume
13
Category
Article
ISSN
0925-4005

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✦ Synopsis

Surface acoustic wave (SAW) sensors have been coated with different organic polymers. Their sensitivities and selectivities towards gaseous solvents such as water, methanol and automotive fuel in dry air are determined. Four sensors are combined to form an array and a pattern-recognition technique (partial least square regression, PLS) is applied to sensor responses obtained from ternary mixtures of analvtes. The observed sensitivities of the sensor array and the prediction properties of the model are discussed. -

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