P2.2.9 A PVDF-driven cantilever resonator for density and viscosity determination of fluids

Event

14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany

Chapter

P2.2 Resonant Sensors

Author(s)

D. Friedrich, K. Goetz, G. Lindner - Institute of Sensor and Actuator Technology, Coburg University of Applied Sciences and Arts (Germany), F. Gao - Faculty of Optical-Electrical and Computer Science, University of Shanghai for Science and Technology (China)

Pages

1429 - 1432

DOI

10.5162/IMCS2012/P2.2.9

ISBN

978-3-9813484-2-2

Price

free

Abstract

A vibrating cantilever sensor consisting of a thin glass plate covered by piezoelectric PVDF foils developed for density measurements in gases turned out to be applicable for liquids as well and was used for liquid level sensing and viscosity measurements of oils. The resonance frequency and the Qvalue of the resonator turned out to be useful parameters for these purposes. The simple construction with flexible PVDF foils for excitation and deflection detection allows the choice of various shapes of the resonator body.