Using the optical contact angle measuring instrument/device, user dispenses the liquid drops which are hang from a dosing needle or are placed on a solid surface facilitates optical analysis for determination of different surface and interfacial parameters. The contact angle between the liquid drop and the solid surface characterises the solid’s wetting properties/behaviour with said liquid.

After the measurement of contact angles for multiple test liquids, this laboratory equipment can determine the surface energy of the solid and further used for calculation of the work of adhesion for different liquids.

Contact angle measurement and analysis helps in the development and quality control of surface coatings, surface finishing, paints and varnishes or cleaning agents, focusing on the following applications:
  • • Static and dynamic contact angle measurement, as well as wettability analysis on solids using the sessile drop method.
  • • Determination of surface energy of solids.
  • • Optical measurement of surface tension and interfacial tension using the pendant drop method.
  • • Fully automatic sample mapping.

LMS supply contact angle measurement and contour analysis systems (sometimes known as drop shape analyzer or contact angle goniometer) from DataPhysics Instruments for every budget. State-of-the-art optics, high-precision mechanical systems, intelligent electronic controllers and high-resolution video cameras guarantee a precise, accurate and highly reproducible image of a liquid drop dispensed within the DataPhysics instrument selected.

Available in: Singapore, Malaysia, Thailand, Indonesia and Vietnam
Manufacturer's website : https://www.dataphysics-instruments.com

Optical Contact Angle Products


The OCA 15EC is the entry level measuring device for professional contact angle measurements and drop shape analysis. The OCA 15EC can be easily disassembled for transportation in the optional case.

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OCA 25

The OCA 25 is the all-purpose measuring device for contact angle measurements and the drop shape analysis. To cope with special requirements of the measuring environment e.g. for aeronautic or enhanced oil recovery research, special models of the OCA 25 are available to measure at high temperatures, low or high pressures.

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OCA 50

The OCA 50 is the measuring device for the fully automatic, time-saving analysis of the wettability of solid surfaces and the determination of the surface energy of solids. Due to the motorized sample table, measuring procedures can be automated easily and thus the surface properties of objects, e.g. large area wafers, can be analysed at the push of a button.

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OCA 200

The OCA 200 from Dataphysics can measure contact angle and drop contour for microscopic and macroscopic structures. A nanolitre dosing system down to 10 nanolitre small droplets is suitable for the analysis of micro-structured samples for eg. Screw threads of a dental implant.

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