Title :
Polymer-coated quartz crystal resonators for multi-information sensing
Author :
Menon, A. ; Haimbodi, M. ; Zhou, R. ; Josse, Fabien
Author_Institution :
Dept. of Electr. & Comput. Eng., Marquette Univ., Milwaukee, WI, USA
fDate :
2/13/1997 12:00:00 AM
Abstract :
A study of polyphosphazene-coated QCRs gas sensors using both mass and electrical loadings has been performed. In addition to the device series resonance frequency, the parallel resonant frequency was measured in an attempt to characterise the changes in the dielectric properties of the coating during the detection process. The result is a sensor with an additional parameter to improve selectivity
Keywords :
crystal resonators; dielectric properties; electric sensing devices; gas sensors; polymer films; quartz; SiO2; dielectric properties; electrical loading; gas sensors; mass loading; multi-information sensing; parallel resonant frequency; polymer-coated resonators; polyphosphazene-coated sensors; quartz crystal resonators; selectivity improvement; series resonance frequency; volatile organic compounds;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970175
