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Optical Tensiometers

Attension Theta is an advanced and versatile contact angle meter for highly accurate measurements of static and dynamic contact angle, 3D surface roughness, surface free energy, surface and interfacial tension, and interfacial rheology.

Optical Tensiometers

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Description

Specification

Services

Theta Theta Lite Available Measurements Static contact angle √ √ Dynamic contact angle Automatic Manual Surface/Interfacial tension √ √ 3D surface roughness √ – Interfacial rheology √ – Surface free energy Zisman Plot, OWRK/Extended Fowkes, van Oss Acid-Base, Wu, Neumann’s Equation of State, Schultz 1 and 2 Available Measurement Methods Sessile drop √ √ Captive bubble √ √ Pendant drop √ √ Reverse pendant drop √ √ Meniscus √ √ Dynamic contact angle Automatic Manual Pulsating drop √ – 3D Topography √ – High pressure √ – Hardware Measuring range (°, mN/m) 0…180, 0.01…2000 0…180, 0.01…2000 Accuracy (°, mN/m) ±0.1, ±0.01 ±0.1, ±0.01 Maximum sample size (mm) Unlimited×95×180 (with stage) Unlimited×50×200 (with stage) Maximum resolution (px) 1984×1264 744×480 Maximum measuring speed (fps) 3009 160 Camera USB3 digital camera with zoom USB2 Light source LED based background lighting LED based background lighting Field of view (Ø, mm) 22 mm x 22 mm 7 Dimensions — Basic frame (L×W×H, cm) 74×20×59 49.5×13×31 Weight — Basic frame (kg) 7.3 5 Power supply (VAC) 100…240 100…240 Frequency (Hz) 50…60 50…60 Drop Profile Fitting Method Young-Laplace (CA, ST/IT, M)* √ √ Bashforth-Adams (ST/IT)* √ √ Circular (CA)* √ √ Polynomial (CA, M)* √ √ Software Provided software OneAttension OneAttension System Requirements Recommended system requirements 2 GHz processor 2 GB RAM 120 GB hard disk drive1 1024×768 resolution 1 USB2 or USB3 port 1 additional USB3 port with Theta 1 additional USB2 port with 3D topography module 1SSD hard disk (min. 500MB/s) needed for high speed recording with Theta

Operating system requirements Windows 7 & 8 & 10 (32 or 64 bit)*

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