A low-cost goniometer for contact angle measurements using drop image analysis: Development and validation
Contact angle measurements are a widely used method for evaluating surface wettability, but their accessibility is limited by the high cost of commercial goniometers. To address this issue, we developed a low-cost prototype goniometer using locally available materials and a smartphone-based image an...
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Veröffentlicht in: | AIP advances 2023-08, Vol.13 (8), p.085123-085123-6 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Contact angle measurements are a widely used method for evaluating surface wettability, but their accessibility is limited by the high cost of commercial goniometers. To address this issue, we developed a low-cost prototype goniometer using locally available materials and a smartphone-based image analysis system to measure contact angles. We validated our approach by comparing its results with those of a standard goniometer for both organic and inorganic materials. For organic samples, the accuracy is greater than 86%, and for inorganic samples, it is greater than 94%. The good agreement between the two methods demonstrates the feasibility of our proposed method for accurate contact angle measurements at a lower cost. |
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ISSN: | 2158-3226 2158-3226 |
DOI: | 10.1063/5.0164668 |