Precision Tensiometers / Goniometers
Attension® Theta Optical Tensiometers
Attension Theta Optical Tensiometers by Biolin Scientific are versatile instruments used in R&D and quality control to characterize material surface properties and interfacial interactions between gas, liquid, and solid phases. Also known as contact angle goniometers or contact angle meters, they are instruments of choice to characterize surfaces. The Attension Theta Optical Tensiometers are ideal for a wide range of applications and completely modular enabling users to customize the system to fit their research needs and budget.
Get the most accurate data with the highest pixel density, frame rate, and field-of-view camera on the market
Free access to the OneAttension software, with regular updates for the lifetime of the instrument
Modular and upgradeable with a wide array of plug-and-play accessories for advanced experiments
Automatically correct for roughness on the sample surface at the exact site of the droplet
See available configurations
Attension® Product Options
Attension Theta Optical Tensiometers are able to perform a complete range of automated measurements, which makes them a highly versatile instrument in research, industrial, and QC laboratories. Measurements include: static contact angle with the sessile drop, captive bubble and meniscus methods, dynamic contact angle with the tilted drop and needle-in drop methods, surface free energy, surface/interfacial tension with the pendant drop and reverse pendant drop methods, surface roughness correction with integrated optical profilometry, and interfacial dilatational rheology with the pulsating drop method.
The Theta Lite is a compact, entry-level and accurate optical tensiometer for static and dynamic contact angle, surface free energy and much more. Ideal for basic research and quality control but boasts the same precision and all-inclusive software as our more advanced Theta Series systems.
Possible Theta Measurements
Contact Angle Measurments
This video will demonstrate a contact angle measurement with Attension Theta Flex. Attension Theta Flex automatically deposits droplets and analyzes the contact angle for immediate, accurate results.
Dynamic Contact Angle Measurement
Dynamic contact angles on the Theta optical tensiometers are a powerful method to quantify the level of heterogeneity of a surface, adhesion, and surface cleanliness. This video shows how the tilting and needle-in methods are carried out with the OneAttension software.
Surface and Interfacial Tension Measurement
This video will demonstrate a surface tension measurement with Attension Theta Flex. Attension Theta Flex automatically forms a pendant drop of desired size and determines the surface/interfacial tension from its drop shape.
Meniscus Contact Angle Measurement
When measuring the contact angle on small rods or fibers, traditional droplet sizes can be inadequate. This video introduces the special meniscus measurement mode with the Theta optical tensiometers that analyze the meniscus shape on rods, plates, or fibers to automatically measure the contact angle.
Batch Contact Angle Measurement
Contact angle measurements with water are an excellent tool for surface quality control. This video highlights how the batch contact angle measurement mode can be used for simple and efficient surface quality control measurements with the Theta optical tensiometers.
One Attension Software
OneAttension is an all-inclusive software that enables immediate access to all measurement capabilities with no need to purchase and install separate software modules. One software for all contact angle, adhesion force, drop shape, interfacial tension, interfacial rheology and tensiometry measurements with quick and intuitive user interface.
Attension® Common Applications
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