Description of the system
In addition to the use of pure water as a test solution, in which a distinction can be made between hydrophilic (low contact angle) and hydrophobic surfaces (contact angle around 90°), various other test solutions are also possible. Accordingly, thicker needles can also be used to generate drops with higher viscosity test solutions. With the help of the SCA 20/21 software for the video-supported measurement of static and dynamic contact angles, the results are evaluated and presented according to the “sessile & captive drop method”, among others.
Technical details:
| Sample table dimensions | 100 mm x 100 mm |
| Maximum sample dimensions | 220 mm x 200 mm x 70 mm |
| Optics | 6-fach Zoom (0,7...4,5-fache Vergrößerung) mit integrierter Fokussierung und USB-Wide-VGA Kamera, max. Auflösung 752 x 480 Pixel, max. Bildaufnahmerate 87 Bilder/s, Sichtbereich 1,05 x 0,66 mm...6,72 x 4.25 mm |
| Measuring range contact angle | 0 ° - 180 °; ± 0,1 ° Messgenauigkeit des Videosystems |
| Measuring range surface and interfacial tension | 0,01 mN/m - 2000 mN/m; ± 0,05 mN/m Auflösung |
30823 Garbsen
