2001 volume 33(6)
doi:10.1068/htwu275

Cite as:
da Mata L G, Fareleira J, Oliveira C, Caetano F, Wakeham W, 2001, "A new instrument to perform simultaneous measurements of density and viscosity of fluids by a dual vibrating-wire technique" High Temperatures - High Pressures 33(6) 669 – 676

A new instrument to perform simultaneous measurements of density and viscosity of fluids by a dual vibrating-wire technique

L G da Mata, João Fareleira, Carla Oliveira, Fernando Caetano, William Wakeham

Received 24 May 2000

Abstract. A preliminary presentation of a new vibrating-wire instrument for the simultaneous measurement of the viscosity and density of fluids, over wide ranges of temperature and pressure, is made. The new equipment has the capability of measuring modes of oscillation, either in a forced mode or free decay. A theoretical description of both modes enables the simultaneous measurement of the viscosity and density of the fluid, either from an analysis of the resonance curve, or the transient response of the sensor.

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