Contact Angle Measurements Using a Simplified Experimental Setup

Autor/inn/en	Lamour, Guillaume; Hamraoui, Ahmed; Buvailo, Andrii; Xing, Yangjun; Keuleyan, Sean; Prakash, Vivek; Eftekhari-Bafrooei, Ali; Borguet, Eric
Titel	Contact Angle Measurements Using a Simplified Experimental Setup
Quelle	In: Journal of Chemical Education, 87 (2010) 12, S.1403-1407 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/ed100468u
Schlagwörter	Geometric Concepts; Measurement Techniques; Video Technology; Science Experiments; Program Descriptions; Scientific Concepts; Courseware; Technology Uses in Education; Electronic Equipment; Chemistry; Program Design + Suchen Sie Ihr Suchwort? Elementare Geometrie; Messtechnik; Lernsoftware; Technology enhanced learning; Technology aided learning; Technologieunterstütztes Lernen; Elektronisches Gerät; Chemie; Programme design; Programmaufbau; Programmplanung
Abstract	A basic and affordable experimental apparatus is described that measures the static contact angle of a liquid drop in contact with a solid. The image of the drop is made with a simple digital camera by taking a picture that is magnified by an optical lens. The profile of the drop is then processed with ImageJ free software. The ImageJ contact angle plugin detects the edge of the drop and fits its profile to a circle or an ellipse. The tangent to the triple line contact is calculated and drawn by the ImageJ software, thus, returning the value of the contact angle with acute precision on the measurement. (Contains 2 tables and 2 figures.) (As Provided).
Anmerkungen	Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10