The method of solid-liquid contact angle measurement using the images of sessile drops with shadows on substratum

Author

Goclawski, Jaroslaw ; Urbaniak-Domagala, Wieslawa

Author_Institution

Tech. Univ. of Lodz, Lodz

fYear

2007

fDate

23-26 May 2007

Firstpage

135

Lastpage

140

Abstract

This paper presents the method of liquid-solid contact angle measurement for the images of sessile droplets, including drop shadows on substratum materials, instead of usual horizontal bottom level lines. ADSA-P trajectory and its skew projection are used to approximate drop profile and shadow boundaries respectively. The intersections of both trajectories determine contact points and localize the bottom line. This implies contact angles between the bottom and profile trajectory.

Keywords

angular measurement; approximation theory; contact angle; ADSA-P trajectory; contact angles; drop profile approximation; drop shadows; sessile droplets; shadow boundaries approximation; skew projection; solid liquid contact angle measurement; substratum materials; Charge coupled devices; Charge-coupled image sensors; Goniometers; Lenses; Mathematical model; Metrology; Physics; Shape; Solids; Textile fibers; ADSA-P model; boundary detection; capillary constant; contact angle; sessile drop;

fLanguage

English

Publisher

ieee

Conference_Titel

Perspective Technologies and Methods in MEMS Design, 2007. MEMSTECH 2007. International Conference on

Conference_Location

Lviv-Polyana

Print_ISBN

978-966-553-614-7

Type

conf

DOI

10.1109/MEMSTECH.2007.4283447

Filename

4283447