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Drop Shape Analyzer


The premium solution for wettability analysis of microscopically small surfaces

Drop Shape Analyzer – DSA100M for wettability analysis on very small surfaces

The wettability of very small surfaces can have a great influence on product quality, e.g. for contact points on circuit boards or in microfluidics. The DSA100M Drop Shape Analyzer is the premium solution for accurately positioning and analyzing drops in the picoliter range. The resulting contact angle is exactly the information you need for optimizing wetting and coating processes on very small surfaces.


  • Investigation of synthetic and natural fibers for composites

  • Wettability of contact points in microelectronics

  • Optimization and development of hair care products

  • Wettability of biochips

  • Micromechanical components, e.g. in watches

  • Microfluidics

Measuring methods

  • Contact angle of a drop on a solid surface

  • Surface free energy of a solid using contact angle data

Measuring results

  • Contact angle

  • Surface free energy

  • Work of adhesion between solid and liquid

  • Interfacial tension between solid and liquid

  • Spreading coefficient between solid and liquid

  • Drop Shape Analyzer – DSA100M for wettability analysis on very small surfaces

    The DSA100M allows drops to be placed with pinpoint accuracy between the lens and camera.

Perfectly equipped for microdrop analysis

The available dosing units for 20 or 60 picoliter minimum volume dispense microscopically small drops of test liquid onto the sample. The fine positioning of the dosing unit and the sample allows precise placement of the drops. This step is particularly easy with the included observation optics which shows the sample in a second camera image.


Thanks to the high-quality microscopic lens and powerful illumination, the DSA100M has high image quality that enables reliable measurement results from image analysis. With the help of the instrument’s high-speed camera, even ultra-small, rapidly evaporating drops can be easily analyzed.


Working with two test liquids also enables the surface free energy to be calculated. This result provides important information for the adhesion, e.g. of fiber coatings.


  • 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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