caa a22 4500 445371692 CHVBK 20180317142949.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00340-010-4200-x doi (NATIONALLICENCE)springer-10.1007/s00340-010-4200-x Measurement of water film thickness by laser-induced fluorescence and Raman imaging [Elektronische Daten] [D. Greszik, H. Yang, T. Dreier, C. Schulz] We present two non-intrusive, laser-based imaging techniques for the quantitative measurement of water fluid film thickness. The diagnostics methods are based on laser-induced fluorescence (LIF) of the organic tracer ethyl acetoacetate added to the liquid in sub-percent (by mass) concentration levels, and on spontaneous Raman scattering of liquid water, respectively, both with excitation at 266nm. Signal intensities were calibrated with measurements on liquid layers of known thickness in a range between 0 and 500μm. Detection via an image doubler and appropriate filtering in both light paths enabled the simultaneous detection of two-dimensional liquid film thickness information from both methods. The thickness of water films on transparent quartz glass plates was determined with an accuracy of 9% for the tracer LIF and 15% for the Raman scattering technique, respectively. The combined LIF/Raman measurements also revealed a preferential evaporation of the current tracer during the time-resolved recording of film evaporation. Springer-Verlag, 2010 Greszik D. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut Yang H. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut Dreier T. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut Schulz C. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut Applied Physics B Springer-Verlag 102/1(2011-01-01), 123-132 0946-2171 102:1<123 2011 102 340 https://doi.org/10.1007/s00340-010-4200-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4200-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Greszik D. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut NATIONALLICENCE 700 1- Yang H. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut NATIONALLICENCE 700 1- Dreier T. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut NATIONALLICENCE 700 1- Schulz C. IVG, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/1(2011-01-01), 123-132 0946-2171 102:1<123 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer