About Theta Flex Optical Tensiometer
The Attension® Theta Flex Optical Tensiometer (also known as a goniometer, contact angle meter or drop shape analyser) gives you highly accurate and easy characterisation of both solids and liquids. It offers you all measurements in one instrument and is designed for reliable and repeatable analysis of wettability and adhesion, even in the most demanding industrial and research applications.
The Theta Flex is able to perform a complete range of automated or manual measurements which makes it a highly versatile instrument in research, industrial and quality control laboratories. Measurements include static contact angle with the sessile drop, captive bubble and meniscus methods, dynamic contact angle with the tilted drop and sessile drop methods, surface free energy, surface/interfacial tension with the pendant drop and reverse pendant drop methods, 3D surface roughness with the fringe projection phase shifting method and interfacial dilatational rheology with the pulsating drop method.
The Theta Flex enables you to choose the level of automation that you require for different applications. Starting with a basic frame, the instrument has a high degree of modularity and an extensive range of accessories that allow you to upgrade or change the instrument as your needs evolve.
Software
All Theta Optical Tensiometers come with OneAttension software included, which includes all the measurement modes ready to use. It combines the most intuitive user interface with a high level of functionality. Its predefined recipes ensure easy and fast measurement setup. Free and unlimited licenses allow the software to be installed on multiple computers, saving valuable instrument time, while free upgrades ensure that your instrument remains future proof.
Main features:
- Best-in-class user interface
- Superior analysis accuracy
- Live analysis
- Full automation
- Flexibility for every need
- Data handling and exporting made easy
- Optimal for industrial & research use
With optional motorised sample stage, motorised vertical movement and a choice of dispensing systems, the Theta Flex can function in a fully automated mode, placing drops in predetermined locations on the substrate and measuring the contact angles.
Features & Benefits
- One instrument for all your needs
- All the measurement methods are included in the software
- The market leading software is easy to use, and included with the instrument at no extra cost
- Modular, which you can configure for your needs and expand when required
- Functional, modern, award-winning design
- High end imaging together with sophisticated analysis algorithms detect and analyze the contact angle and surface free energy precisely
- Automatic base line detection and drop shape fitting
- The effect of roughness on wettability can be measured with the unique 3D Topography module
- Contact angle on curved surfaces (circular or near-circular)
- Fast and repeatable
- All steps from loading the measurement to performing it and analyzing the data can be automated
- Disposable dispensing tips reduces time preparation and cleaning
Applications
The Theta Flex is an advanced optical tensiometer for simple, accurate and repeatable measurement of:
- static contact angle
- dynamic contact angle
- batch contact angle
- roll-off angle
- surface free energy
- surface tension
- interfacial tension
- interfacial rheology (viscoelasticity)
- wettability
- absorption
- adsorption
- spreading
- cleanliness
- surface heterogeneity
- roughness corrected contact angle
Measuring contact angle with the Theta Flex
This video demonstrates the use of the Theta Flex for measuring contact angle, and shows the easy to use and comprehensive software interface.
All Downloads
| Filename | Size | Download |
| Attension Theta Flex and Flow Modules and Accessories Brochure | 0.88MB |  |
| Attension Theta Range Optical Tensiometers Brochure | 1.22MB | |
| Attension Theta Topography Product Sheet | 0.97MB | |
Ordering Information
Contact our Sales Team directly to discuss your individual requirements. See typical configurations below and refer to the product brochure.
| Part Number | Description |
|---|---|
| BIOTF300OTD | Theta Flex with manual dispenser |
| BIOTF300OTD-DIS1 | Theta Flex with manual drop placement and one automated dispenser |
| BIOTF300-DIS1 | Theta Flex with one automated disposable tip dispensers |
| BIOTF300-DIS2X | Theta Flex with two automated dispensers and autoX stage |
| BIOTF300-DIS2XYZ | Theta Flex with two automated dispensers and autoXYZ stage |
| BIOTF300-PD200 | Theta Pulsating Drop system |
| BIOTF300-HPC | Theta High Pressure for manual measurements using liquids |
Complement your system with the additional modules that will enable further capabilities:
- 3D Topography Module: Roughness-corrected contact angle measurements automatically with a single click. For studying the effect of surface roughness to contact angle results.
- High Pressure Chamber: Enables measurements at pressures up to 400 bars and temperatures up to 200°C. Designed for enhanced oil recovery and super-critical fluid applications.
- Pulsating Drop Module – PD 200: Oscillates drop volume for interfacial rheology studies.
- Tilting Cradle: For fully automatic dynamic contact angle and roll-off angle measurements by the tilted drop method.
- Environmental Chambers: To control the measurement environment including the temperature.
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 01543411460 |
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