Viscometer is used to
measure the viscosity of a material or fluid’s resistance to flow under an
applied stress in a provided environment. Viscosity is represented by the
symbol η "eta" which is the ratio of the shearing stress to the
velocity gradient in a fluid.
Precisely a viscometer
can measure the viscosity’s quality. The installation of new technology like rheometer-on-a-chip, innovative MEMS
and microfluidics provides more precise and accurate measurement of viscosity
of a substance/material. Moreover, such technologies make it very easy to
operate and take a reading of viscosity.
Why to measure
viscosity:
The measurement of viscosity is considered to see the behavior of a fluid material in
a particular environment and design. Since viscosity of a material changes
dramatically with temperature, engineers or experts use viscometer
to understand what will happen to fuel fluids in different temperatures and
pressures. This instrument is widely used in research labs to measure new as
well as existing fluids’ viscosities for industrial applications. Now,
viscometers are being used extensively in different industries for quality control.
Types of Viscometer:
There are several types of viscometers being used in laboratories and industries. The portable
viscosity testers are most used in
commercial applications.
U-Tube Viscometers are mostly used laboratory
settings. Falling sphere viscometers, falling piston viscometers, rotational
viscometers, bubble viscometers, and rheometers
are some other types of viscometers that are available with technical
innovations to measure plasma viscosity. Different forms of
viscometers are being explored as per the requirements of small sample volume,
high shear rates, different temperatures, quality monitoring and other research
works.
Applications
of Viscometers:
The application of viscometers in wide variety of
material and chemical industries is proved. They are extensively used in
quality control for food and beverages, cosmetic products, chemical items, and
research and development. In different process conditions of materials, they
are needed to be pumped and flow in different shapes and designs.
A material’s viscosity is important to consider in
its dipping and coating performance. For example, inks, paints, toothpastes and
chocolates are some products that need viscosity and texture application in
different temperatures and circumstances.
Rheometers are
applied to measure a material’s properties like molecular weight and density
that virtually affect its flow behavior. It’s a usual instrument of technical
sales department to test viscosity of a fluid material.
Viscometry is taken in mineral oils and lubricants
including motor oil, fuel oil, and gas well drilling fluids. Other commercial
applications of plasma viscometer
include adhesive materials, beverages, chemicals, food products, paints &
coatings, petroleum products.
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