Viscosity sensor utilizing a piezoelectric thickness shear sandwich resonator

This paper describes a novel quartz crystal sensor for measurement of the density-viscosity product of Newtonian liquids. The sensor element consists of two piano-convex AT-cut quartz crystals vibrating in a thickness-shear mode with the liquid sample in between. This special set-up allows suppressi...

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Veröffentlicht in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control. - 1986. - 45(1998), 5 vom: 15., Seite 1331-40
1. Verfasser: Thalhammer, R (VerfasserIn)
Weitere Verfasser: Braun, S, Devcic-Kuhar, B, Groschl, M, Trampler, F, Benes, E, Nowotny, H, Kostal, P
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1998
Zugriff auf das übergeordnete Werk:IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Schlagworte:Journal Article
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245 1 0 |a Viscosity sensor utilizing a piezoelectric thickness shear sandwich resonator 
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520 |a This paper describes a novel quartz crystal sensor for measurement of the density-viscosity product of Newtonian liquids. The sensor element consists of two piano-convex AT-cut quartz crystals vibrating in a thickness-shear mode with the liquid sample in between. This special set-up allows suppression of disturbing resonances in the liquid layer. Such resonances are generated in the common single-plate arrangements due to compressional waves caused by spurious out-of-plane displacements of the shear vibrating finite plate. The primary measurands of the sensor are the fundamental resonance frequency and the associated resonance Q-value, which are influenced by the viscously entrained liquid contacting the quartz surface. The sensor allows the measurement of samples with viscosities from almost zero (air!) up to 200 cP with a sample volume of 130 microl 
650 4 |a Journal Article 
700 1 |a Braun, S  |e verfasserin  |4 aut 
700 1 |a Devcic-Kuhar, B  |e verfasserin  |4 aut 
700 1 |a Groschl, M  |e verfasserin  |4 aut 
700 1 |a Trampler, F  |e verfasserin  |4 aut 
700 1 |a Benes, E  |e verfasserin  |4 aut 
700 1 |a Nowotny, H  |e verfasserin  |4 aut 
700 1 |a Kostal, P  |e verfasserin  |4 aut 
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