Contact Angle & Surface Tension

Dynamic Contact Angle and Surface Tension Analyzer

FTA-II is a video system for measuring contact angle, surface and interfacial tension, wettability, adsorption, surface energy, and related liquid-drop behavior. It provides real-time image capture, event-triggered analysis, and automatic, semi-automatic, or manual image analysis for industrial and academic measurements.

Model
FTA-II
Category
Contact Angle & Surface Tension

Product Description

Images are displayed in real time and can be stored on a computer for later processing. Capture rates can be adjusted from 60 frames/s to one frame per several hours. Analysis uses drop size and shape; results can be displayed graphically or exported to databases and spreadsheets. Event-triggered capture can be started by an automatic injection pump, timer, user injection, or detection of a drop falling from the dispensing head.

The software analyzes grayscale images containing specimen details and can identify the drop and specimen edge. Hardware includes a measurement platform and a PC video-capture card; the PC requires an available PCI slot. The software runs in a legacy Windows 98/ME/NT/2000/XP environment; current platform support is not stated.

Technical Specifications

ParameterSpecification
Analysis outputsStatic/equilibrium contact angle; capillary contact angle; advancing angle; receding angle; pendant-drop surface tension; pendant-drop interfacial tension; sessile-drop surface tension; sessile-drop spreading; sessile-drop adsorption; surface energy; work of adhesion/adhesion tension; critical micelle concentration; Zisman critical wetting tension
Contact-angle standard deviation<1°
Surface-tension standard deviation<0.5 mN/m
Contact-angle and tension resolution0.1 unit
Capture rate60 frames/s to 1 frame per several hours; adjustable nonlinearly
Analysis modesAutomatic, semi-automatic, and manual
Event-triggered captureAutomatic injection pump, timer, user injection, or drop-fall detection
HardwareMeasurement platform and PC video-capture card; available PCI slot required
Standard systemHigh-resolution camera; image-magnification microscope; PCI capture card; PC-controlled injection pump; controlled specimen stage; PC-controlled lighting
Operating systemsLegacy Windows 98/ME/NT/2000/XP environment; current platform support is not stated
Optional environmental chamberHeating to 300 °C
Optional camera360 frames/s
Optional configurationsAxial-moving internal platform; large specimen chamber with circulation bath and three-axis stage; interfacial-tension chamber with circulation bath, pressure control, motorized stage, and imaging software; heated syringe; tilting specimen stage; autofocus microscope; preinstalled-software PC

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