26 June 2017 Interferometric measurement of film thickness during bubble blowing
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Abstract
In this paper, we propose digital holography in transmission configuration as an effective method to measure the time-dependent thickness of polymeric films during bubble blowing. We designed a complete set of experiments to measure bubble thickness, including the evaluation of the refractive index of the polymer solution. We report the measurement of thickness distribution along the film during the bubble formation process until the bubble‘s rupture. Based on those data, the variation range and variation trend of bubble film thickness are clearly measured during the process of expansion to fracture is indicated.
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Z. Wang, B. Mandracchia, V. Ferraro, D. Tammaro, E. Di Maio, P. L. Maffettone, P. Ferraro, "Interferometric measurement of film thickness during bubble blowing", Proc. SPIE 10333, Optical Methods for Inspection, Characterization, and Imaging of Biomaterials III, 103331O (26 June 2017); doi: 10.1117/12.2274754; https://doi.org/10.1117/12.2274754
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