Viscometer
Viscometer: Anton Paar‘s viscometer models have revolutionized viscosity measurement. The innovative Stabinger Viscometer and the further development of the well-known Höppler falling ball principle in the shape of the automatic micro-viscometer make precise viscosity determination easier and quicker than ever before.
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Benchtop
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Anton Paar's viscometer determines the dynamic and kinematic viscosity and density according to ASTM D7042. The results ... -
The RheolabQC quality control rheometer from Anton Paar puts high-end R&D technology to use for convenient routine ... -
The rolling-ball viscometer Lovis 2000 M/ME measures the rolling time of a ball through transparent and opaque liquids ...
Software
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Visiolab for SVM Windows software controls SVM 3000 with and without sample changer, collects and processes measuring ...
Anton Paar‘s viscometer models are established as standard solutions and an increasingly popular alternative to traditional capillary viscometer types.
The viscometer models are used in a wide range of industries: from wort measurement in beer to measurements on polymer solutions, inks, low-viscosity oils and applications in biotechnology and the pharmaceutical industry. For measurements on substances in which only a small amount of sample is available, a special accessory can be used.
Viscometer models from Anton Paar – more powerful than ever:
- New firmware allows quick and easy operation and increases sample throughput by up to 50 %
- Four precision levels available
- Use of a sample changer with the unique Xpress technology fills samples with higher viscosity and reduces filing times
- Sample recovery, automatic cleaning test and management of priority samples
- Compact size, low solvent and power consumption
Anton Paar‘s viscometer models have revolutionized viscosity measurement.
Contact us today, we are happy to discuss which viscometer is the best for you.
Viscometer – precise, quick, flexible in use.
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Viscosity of Automotive brake fluids - Measuring viscosity for the safe performance of hydraulic systems in vehicles -
Viscometry of transformer and insulation oil - An easy and flexible solution for ‘cool’ and ‘outstanding’ stuff
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Viscometry of heavy fuel oil and residual fuel oil - Heating the world
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Viscometry of bunker oil, marine fuel - Driving world's economy
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Viscometry in the Field of In-Service Oil Determination - Test in-service lube oils by determining their viscosity and VI
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Crude oil viscosity for the petroleum industry - Characterize crude oils by determining their viscosity and API Degrees
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The molecular weight of hyaluronan is an indication for desease conditions. The Lovis 2000 M/ME microviscometer combines precise and fast viscosity
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For exact calculation of the molecule size, correct values of the influencing factors like viscosity are required. ï€ With the Lovis 2000 M/ME
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The more viscous the blood, the harder it is to pump which can cause different kinds of health risks.ï€ The Lovis 2000 M/ME microviscometer in
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Ionic liquids are employed as powerful, environmentally neutral solvents and as electrically conducting fluids. Due to exact viscosity determination
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The wide scale of applications of this natural polymer ranges from agriculture, food industry to sophisticated pharmaceutical and medical products.
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Basics of Viscometry
Every single substance on Earth can be placed on a scale from fluid to solid. Viscometry is concerned with the determination of a fluid’s viscosity, that is its thickness or – more scientifically - its internal resistance to flowing.
External forces such as gravity affect the fluid and make it flow. Most substances change their viscosity depending on the external force. If a fluid’s viscosity remains constant independent of the external force it is called an ideal or Newtonian fluid.
One dominating influence on viscosity is temperature: the warmer it gets, the less viscous a substance becomes. Consequently, correct viscosity measurement requires precise temperature measurement and temperature control.
Basics of Lovis 2000 M/ME
The Lovis 2000 M/ME is a microviscometer based on the rolling ball principle.
- A ball rolls through a closed, liquid-filled capillary which is inclined at a defined angle.
- Inductive sensors determine the ball's rolling time between defined marks.
- Both the liquid's dynamic and kinematic viscosity can be calculated from the rolling time.
Basics of Stabinger Viskosimeter SVM 3000
The SVM 3000 uses the Stabinger measuring principle, named after its inventor Dr. Hans Stabinger.
- A lightweight magnetic rotor floats in a liquid filled tube, which rotates at constant speed. The rotor is centered by the centrifugal forces.
- The sample fluid’s viscous forces drive the rotor. This leads to an equilibrium rotor speed, which is recorded as an unambiguous measure of the fluid’s viscosity.
- The floating rotor and a contactless measuring sensor eliminate all undesirable influence of external friction.
- A built-in U-tube oscillator for additional density measurement permits the simultaneous determination of density, kinematic and dynamic viscosity.
History of Viscometry(taken from Thomas G. Mezger “The Rheology Handbook, 2nd Edition, p. 252ff)
The word “viscosity“ is derived from the Latin word “viscum” for
“mistletoe”. In the old days, mistletoe berries were used to make a
sticky kind of glue for catching birds.
75 BC: Titus Lucretius Carus, poet and philosopher, writes a didactic
poem on the flow and gliding behaviour of fluids like water, milk, wine,
olive oil and honey.
1590: Galileo Galilei introduces the systematic use of practical
scientific experiments, e.g. on liquids and solids to characterize a
material’s behavior.
1649: Blaise Pascal reflects about ideal fluids without any flow
resistance.
1687: Isaac S. Newton states proportionality between flow resistance and
flow velocity for fluids.
Since 1800: Use of efflux viscometers (flow cups) for textile printing
inks and oils.
1839: Gotthilf Heinrich Ludwig Hagen designs the first capillary
viscometer.
History Micro Viscometer Lovis 2000 M/ME
1845: Georges Gabriel Stokes performs scientific
falling ball experiments.
1933: Fritz Höppler designs a “Falling-Ball Viscometer” (commercially
available since 1934 (see also DIN 53015, and later ISO 12058).
1985: For Anton Paar KG, Dr. Jorde and Dr. Ribitsch of the Institute for
Physical Chemistry at the Karl-Franzens-University of Graz develop a
rolling ball viscometer with automatic angle selection, optical
detection and water bath temperature control.
1988: Anton Paar KG introduces the AMV 200, an electronic microviscometer with inductive sensors, which also permits the measurement of opaque liquids. The inclination angle can be varied from 15° to 90°.
1999: Anton Paar GmbH presents the AMVn automatic microviscometer as the successor to the AMV 200. Thermoelectric temperature control (Peltier elements) replaces the water bath system.
2011: Lovis 2000 M/ME is introduced as a new generation of microviscometer which is part of Anton Paar’s successful M Generation.
History Stabinger Viscometer SVM 3000
2001: Anton Paar GmbH introduces the SVM 3000 Stabinger Viscometer,
invented and developed by Dr. Hans Stabinger and his team at the “Labor
fuer Messtechnik“ in Graz/Austria. The entirely new measuring principle
is protected by the European patent EP 0 926 481 A2. Dr. Stabinger also
developed the oscillating U-tube principle for precise density
measurement in the 1960s.
2004: ASTM D7042-04 Standard test method for Dynamic Viscosity and
Density of Liquids by Stabinger Viscometer (and the Calculation of
Kinematic Viscosity)
From 2005 onwards: ASTM D7042-04 is referenced by other ASTM standards.
- ASTM D6074 – 08 Standard Guide for Characterizing Hydrocarbon Lubricant Base Oils
- ASTM D6823 – 08 Standard Specification for Commercial Boiler Fuels With Used Lubricating Oils
- ASTM D6448 – 09 Standard Specification for Industrial Burner Fuels from Used Lubricating Oils
- ASTM D7152 – 05e1 Standard Practice for Calculating Viscosity of a Blend of Petroleum Products
