Saber UCV
Repositorio Institucional
Repositorio Institucional
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https://saber.ucv.ve/handle/10872/6393
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| Title: | Inexpensive Wilhelmy balace based on a fiber optic sensor for the study of Langmuir films |
| Authors: | Gutiérrez, Héctor Chirinos, José Castillo, Jimmy Caetano, Manuel |
| Keywords: | fiber optic sensor Langmuir films Wilhelmy balance |
| Issue Date: | 1-Apr-2005 |
| Publisher: | Review of Scientific Instruments |
| Citation: | Rev. of Sci. Instr., 76, 045112 (Abril 2005) |
| Abstract: | An inexpensive Wilhelmy balance based on a fiber optic sensor capable of sensitive surface tensionmeasurements has been designed and implemented. The system consists of a leaf spring conforming a cantilever structure and a bifurcated optical fiber acting as a laser beam deflection detector. Operated in a static way, it achieves a force measurement sensitivity of 0.154 V by N and a tension surface resolution of 0.1 mN/m. π-A isotherms of Langmuir films from insoluble amphiphiles 5 hexadecanoylaminofluorescein (fluorescein H-110) in water, were followed as a model system to characterize this instrument. |
| URI: | http://hdl.handle.net/10872/6393 |
| Appears in Collections: | Artículos Publicados |
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