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Drop Shape Analyzer – DSA100E

Structural analysis

“ The high-class universal instrument for surface analysis for quality assurance and research ”
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The expert configuration of our Drop Shape Analyzer – DSA100 is designed for the fully automatic measurement of the contact angle and the surface free energy of solid samples and the surface tension of liquids. The system carries out automatic, fully standardized and complete analyses of the sample. It enables wetting and coating processes to be investigated comprehensively and scientifically, and the adhesion and long-term stability of coatings to be calculated.

Top-of-the-range equipment for dosing and sample positioning

Our high-quality automatic dosing unit enables the contact angle with four liquids to be measured in quick succession. As an option, the dosing unit can be expanded to up to eight liquids in order to achieve maximum accuracy when determining the surface free energy. The software-controlled axes ensure maximum precision by moving the sample accurately to all pre-defined measuring positions, where dosing and measurement are then carried out fully automatically.

Fully automatic analysis based on flexible measurement templates

The measurement is carried out based on programmable measuring sequences which we have already prepared for the main surface analysis tasks. It is also possible to measure the position-dependent contact angle (mapping) to check the homogeneity of the sample or to compare differently coated regions.

Our computer-controlled components, such as optical zoom and focus adjustment, ensure maximum possible convenience. These enable the drop to be displayed with different drop widths for different test liquids, thus enabling the contact angle to be measured with the greatest possible accuracy at all times.

Comprehensive coating analysis by incorporating surface tension

The DSA100E enables the surface tension of a liquid to be measured without changing over the instrument. This can be carried out manually or even incorporated into an automatic measuring sequence. Combining the liquid data with those of the solid enables a comprehensive characterization of the component compatibility. For example, it is possible to determine the intensity of the adhesion and the long-term stability of a coating.

Features
  • Software-controlled x- and y-axis and software-controlled lift table (z-axis)
  • Software-controlled quadruple dosing unit, expandable for up to eight liquids
  • Lens with software-controlled zoom and focus adjustment
  • Camera with 1200 × 800 px at 200 fps to 90 × 60 px at 2000 fps resolution
  • Very bright, homgenous LED illumination
  • Viewing angle adjustment with stable image height
  • Software for measuring contact angle, surface free energy of solids and surface tension of liquids

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See also

Gas analysis Chemical analysis Air analysis Water analysis Soil analysis Combustion analyzers Composition of liquids and density Composition of solids

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