DocumentCode
1669711
Title
A chloroform transducer based sPS-δe-coated crystal microbalance
Author
Arpaia, Pasquale ; Guerra, Gaetano ; Mensitieri, Giuseppe ; Moriello, Rosario Schiano Lo
Author_Institution
Dept. of Eng., Univ. of Sannio, Benevento, Italy
Volume
2
fYear
2002
fDate
6/24/1905 12:00:00 AM
Firstpage
1093
Abstract
A prototype quartz crystal microbalance-based transducer is proposed for in-situ measurements of very-low chloroform activity. The sensing element consists of a syndiotactic polystyrene thin film sprayed on the piezoelectric quartz electrode of the microbalance. Chloroform adsorption and desorption in the film give rise to a mass variation implying a related variation in the resonance frequency of the crystal. Static and dynamic metrological characterizations of the sensor prototype were carried out at varying chloroform activity and temperature levels. Satisfactory sensitivity, repeatability, and dynamic hysteresis were highlighted.
Keywords
chemical sensors; crystal resonators; microbalances; piezoelectric transducers; polymer films; QCM; SiO2; chloroform activity in-situ measurement; chloroform adsorption; chloroform desorption; chloroform transducer; crystal resonance frequency variation; microbalance piezoelectric quartz electrodes; sensor static metrological characterization; sensor temperature characteristics; syndiotactic polystyrene thin film sensing element; syndiotactic polystyrene-coated quartz crystal microbalance; thin film mass variation; transducer dynamic characterization; transducer dynamic hysteresis; transducer repeatability; transducer sensitivity; Electrodes; Hysteresis; Piezoelectric films; Piezoelectric transducers; Prototypes; Resonance; Resonant frequency; Sensor phenomena and characterization; Spraying; Temperature sensors;
fLanguage
English
Publisher
ieee
Conference_Titel
Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE
ISSN
1091-5281
Print_ISBN
0-7803-7218-2
Type
conf
DOI
10.1109/IMTC.2002.1007108
Filename
1007108
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