How to test viscosity8/18/2023 ![]() ![]() It is a measure of the resistance of flow due to internal friction when one layer of fluid is caused to move in relationship to another layer. The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. ![]() It is used for those fluids which cannot be defined by a single value of viscosity and therefore require more parameters to be set and measured than is the case for a viscometer. What does a rheometer test?Ī rheometer is a laboratory device used to measure the way in which a liquid, suspension or slurry flows in response to applied forces. … Unlike rheometers, viscometers only measure the viscosity of fluids under one flow condition. What is the difference between viscometer and rheometer?Ī rheometer is an instrument used to measure the way a liquid flows in response to applied force, whereas a viscometer is an instrument used to measure the viscosity of a fluid. This means that in a viscosity measurement the rheometer presets a certain current that correlates to a defined torque. They measure the torque and the deflection angle of the measuring bob.
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