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Article | REF: R2351 V2

Viscosity Measurement - Viscosimeters and rheometers

Authors: Dominique DUPUIS, Alain PONTON

Publication date: July 10, 2021 | Lire en français

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    1. Measurement methods

    1.1 Shear viscosity measurement

    This measurement is mainly carried out using capillary viscometers, rotary instruments (with different geometries) or ball droppers. Various other devices are also used, but less frequently; moreover, it is not always clear that they measure shear viscosity per se. Whatever the basic geometry, the fundamental equations assume laminar flow and non-slip fluid at the wall. A 2013 article reviews how to detect slip and fracturing phenomena in the sample, and techniques for remedying them or making corrections to measurements

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