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Drop Shape Analyzer


Analyzing phase interactions and transitions at high pressures

Drop Shape Analyzer – DSA100HP690 for interfacial tension measurements in EOR

The DSA100HP40 performs precise measurements of contact angle as well as surface tension and interfacial tension at pressures of up to 40 bar and temperatures of up to 200 °C. The main focus lies in chemical processes under pressure in which phase interactions and transitions as well as solid-liquid wetting must be investigated and optimized. The DSA100HP40 combines our expertise in the field of optical drop shape analysis and the know-how of our partner EUROTECHNICA in high pressure applications.


  • Development and optimization of melt emulsions

  • Optimization of chemical syntheses and separation processes under pressure

  • Wetting of catalysts under pressure

Measuring methods

  • Contact angle of a drop on a solid surface

  • Contact angle using a gas bubble beneath a solid surface in a liquid

  • Surface or interfacial tension using the curvature of a drop or bubble at the tip of a needle

Measuring results

  • Surface tension of a liquid

  • Interfacial tension between two liquids

  • Static contact angle

  • Contact angle using a bubble in a liquid

Versatile options for dosing and measuring

With the aid of the dosing units of the DSA100HP40, the drop liquid and the surrounding phase easily reach the inside of the high pressure cell. Handling the drop phase is especially convenient with the special Mini-Dosing unit which works with small volumes and is easy to clean.


Solid samples can be positioned from the outside to measure the wettability at different positions while maintaining the pressure. The flexible design also allows contact angle measurements in a surrounding liquid phase.



Reliable drop shape analysis thanks to high imaging quality

The DSA100HP40 features a high-resolution camera and a quality zoom lens for accurate display of the drop with optimum size. The high image quality that this achieves leads to a precisely measured contact angle or surface/interfacial tension. Combined with the intelligent image evaluation algorithm of the ADVANCE software, drop shape analysis with the instrument provides exact results.


  • Intuitive software with a workflow-oriented user interface

  • Swift and repeatable analyses thanks to measurement templates and powerful automation functions

  • Superior algorithms for image analyses provide for precise results even with difficult images

  • A wide range of evaluation methods makes ADVANCE a reliable scientific tool

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