viscometer - определение. Что такое viscometer
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Что (кто) такое viscometer - определение

MEASURING INSTRUMENT
Viscosimeter; Viscometry; Falling Ball Viscometer; Falling Sphere Viscometer; Bubble viscometer; Viscosimetry; Ostwald viscometer; Stabinger viscometer
  • Measuring principle of the electromagnetically spinning-sphere viscometer
  • Schematic view of oscillating-piston viscometer
  • Ostwald viscometers measure the viscosity of a fluid with a known density.
  • Rectangular Slit Viscometer/Rheometer
  • Creeping flow past a sphere

viscometer         
[v?s'k?m?t?]
¦ noun an instrument used for measuring the viscosity of liquids.
Derivatives
viscometric adjective
viscometrically adverb
viscometry noun
Viscometer         
A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used.
Viscosimeter         
·noun An instrument for measuring the degree of viscosity of liquids, as solutions of gum.

Википедия

Viscometer

A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Thus, a rheometer can be considered as a special type of viscometer. Viscometers can measure only constant viscosity, that is, viscosity that does not change with flow conditions.

In general, either the fluid remains stationary and an object moves through it, or the object is stationary and the fluid moves past it. The drag caused by relative motion of the fluid and a surface is a measure of the viscosity. The flow conditions must have a sufficiently small value of Reynolds number for there to be laminar flow.

At 20 °C, the dynamic viscosity (kinematic viscosity × density) of water is 1.0038 mPa·s and its kinematic viscosity (product of flow time × factor) is 1.0022 mm2/s. These values are used for calibrating certain types of viscometers.