page_title: Rheometer
hierarchical_section_title: Rheometer
caption_attribution_description: English: A rheometer — a device used to characterize the viscous behavior of non-Newtonian fluids. A variety of conical and cylindrical rotors can be used in this machine. This model is able to measure torque with an resolution of 0.1 nNm. It is in use at the Otto-von-Guericke Universität Magdeburg, Germany.
context_page_description: A rheometer is a laboratory device used to measure the way in which a liquid, suspension or slurry flows in response to applied forces. 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. It measures the rheology of the fluid.
  There are two distinctively different types of rheometers. Rheometers that control the applied shear stress or shear strain are called rotational or shear rheometers, whereas rheometers that apply extensional stress or extensional strain are extensional rheometers.
  Rotational or shear type rheometers are usually designed as either a native strain-controlled instrument or a native stress-controlled instrument.
context_section_description: A rheometer is a laboratory device used to measure the way in which a liquid, suspension or slurry flows in response to applied forces.  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.  It measures the rheology of the fluid.
  There are two distinctively different types of rheometers.  Rheometers that control the applied shear stress or shear strain are called rotational or shear rheometers, whereas rheometers that apply extensional stress or extensional strain are extensional rheometers.
  Rotational or shear type rheometers are usually designed as either a native strain-controlled instrument (control and apply a user-defined shear strain which can then measure the resulting shear stress) or a native stress-controlled instrument (control and apply a user-defined shear stress and measure the resulting shear strain).
caption: A rotational rheometer in use in a research laboratory
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