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Titolo:
VISCOSITY SENSOR UTILIZING A PIEZOELECTRIC THICKNESS-SHEAR SANDWICH RESONATOR
Autore:
THALHAMMER R; BRAUN S; DEVCICKUHAR B; GROSCHL M; TRAMPLER F; BENES E; NOWOTNY H; KOSTAL M;
Indirizzi:
VIENNA UNIV TECHNOL,INST ALLGEMEINE PHYS A-1040 VIENNA AUSTRIA VIENNA UNIV TECHNOL,INST THEORET PHYS A-1040 VIENNA AUSTRIA SLOVAK UNIV TECHNOL,DEPT RADIOELECTR SK-81219 BRATISLAVA SLOVAKIA
Titolo Testata:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
fascicolo: 5, volume: 45, anno: 1998,
pagine: 1331 - 1340
SICI:
0885-3010(1998)45:5<1331:VSUAPT>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
MODE RESONATORS; LIQUIDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
R. Thalhammer et al., "VISCOSITY SENSOR UTILIZING A PIEZOELECTRIC THICKNESS-SHEAR SANDWICH RESONATOR", IEEE transactions on ultrasonics, ferroelectrics, and frequency control, 45(5), 1998, pp. 1331-1340

Abstract

This paper describes a novel quartz crystal sensor for measurement ofthe 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 mu l.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 19:01:42