Commonly used by surface scientist to measure surface and interfacial tension, optical tensiometers uses the pendant or sessile drop methods. A drop is produced and captured using a CCD Camera, the drop profile is extracted and the software integrates the profile and fit it in the Young-Laplace equation. Surface tension can then be calculated from the fitted parameters.
The Theta series encompasses the different needs and specific requirements when measuring surface tension & interfacial tension.
*NEW* Theta Pulsating Drop
Uses pulsating drop method & best for interfacial rheology measurements
*NEW* Theta Flex
Better, improved that measures static & dynamic contact angles
Theta High Pressure
Measuring contact angles, wettability under pressure & temperature
Theta Topography
Measures roughness corrected contact angle
Theta Lite
Simple, compacted, user-friendly, precise
Theta High Pressure
Measuring contact angles, wettability under pressure & temperature