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A micro-acoustic wave sensor for engine oil quality monitoring

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1 Author(s)
Chao Zhang ; Lubrizol Corp., Wickliffe, OH, USA

A micro-acoustic wave sensor based on the thickness shear mode (TSM) quartz resonator has been investigated for engine oil quality monitoring through the viscosity measurement. Effects of the fluid mechanical and electrical properties on the TSM resonator with both sides in contact with the fluid have been studied and compared to the 1-sided device. Sensor prototypes based on both the 1- and 2-sided TSM resonators have been developed and tested in various fresh and used engine oils.

Published in:

Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International

Date of Conference:

4-8 May 2003