Title :
Chemical identification using internal friction and frequency measurements on a polymer coated resonator
Author :
Kant, R.A. ; Daly, C.L. ; Wu, Huey-Daw
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
We demonstrate the use of high resolution internal friction and frequency measurements to distinguish between different types of analytes by determining the loss per unit mass of absorbed analyte. In this study we determined the selectivity and sensitivity of this sensing technique using AT-cut, polymer coated, quartz crystal resonators. In addition, we report the mechanical response changes of the resonator due to coating alone and with an analyte present
Keywords :
chemical sensors; crystal resonators; internal friction; sensitivity; AT-cut resonators; SiO2; absorbed analyte; chemical identification; frequency measurements; internal friction; loss per unit mass; mechanical response changes; polymer coated resonator; quartz crystal resonators; selectivity; sensitivity; Atmospheric measurements; Chemicals; Crystals; Energy measurement; Frequency measurement; Friction; Loss measurement; Polymer films; Resonance; Temperature;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841476
