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Implications of Ergonomic and Environmental Factors in the Design of Surface Acoustic Wave Sensors

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  037066,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.14185) @2003
Authors:   Reginald Parker, Alisha M. Elmore, Zuri Farngalo, Deirdra R. Johnson, Louis V. Nelson, III
Keywords:   Ergonomic sensor design, selection of benign solvent systems

As sensors and sensor technology become more sophisticated and more frequently used, economic efficiency and their associated ergonomics are increasingly more critical. The sensor system in this work is a Surface Acoustic Wave (SAW) sensor. The system consists of a piezoelectric ceramic coated with a chemically sensitive polymer. The polymer irreversibly reacts with an airborne agent (in this case HCl gas). The first issue that is addressed in this study is the reuse of spent SAW chips. The beginning of a model to identify solvents capable of removing spent polymer is developed. Additionally, a new design is proposed to better control access to SAW chips for removal and replacement.

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