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SVT20

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SVT20

Advanced Spinning Drop Video Tensiometer

 

APPLICATION SCOPES:

Regular or Ultra-low Surface/Interfacial Tension Measurements and Interfacial Rheology Research.  A new concept of doing Spinning Drop Measurements; Video-based Tensiometer with rotational speed up to 20,000 RPM capable of reporting interfacial visco-elasticity.  Most widely used in oil, petroleum, emulsion, detergent, cosmetic, pharmaceutical and healthcare industries. But not limited to.

METHODS:

Spinning Drop Method.

FEATURES:

The SVT 20 is used for the software controlled and video supported measurement of:

  • Static and time dependent interfacial tension between two not completely miscible liquids.
  • Two and three-dimensional extensional relaxation of viscoelastic liquids and liquids droplets encapsulated or enclosed in membranes.
  • Yield point of e.g. liquid crystalline materials.
  • Thermal expansion coefficients of liquids.
  • All measurements are performed according to the Spinning Drop and Oscillating Drop Method.

The 64-bit Windows 7 & 8 compatible software developed for the SVT 20 offers:

  • Time dependent control of rotational speed as well as the adjustment of the capillary position in height and tilt.
  • Recording and evaluation of video sequences for the measurement of fast relaxational vibrations of drops.
  • Calculation of interfacial tensions from the shape of rotating drops (spinning drops) according to the Young-Laplace Equation as well as according to the Vonnegut approximation for sufficiently extended droplets.
  • Calculation of relaxational modules, yield points and other rheological parameters.
  • An extended liquid data base with more than 140 parameter entries.

 SVT 20/TPC180

SVT20 Spinning Drop Video Tensiometer

 

 Most Updated Specs and Pricing