INVESTIGADORES
MARINO Beatriz Maria
artículos
Título:
Profilometry of a liquid free surface with large slope variations
Autor/es:
THOMAS, LP; MARINO, BM; GRATTON, R
Revista:
APPLIED OPTICS
Editorial:
Optical Society of America
Referencias:
Año: 1997 vol. 36 p. 2905 - 2911
ISSN:
0003-6935
Resumen:
We describe and test a refractive method for determining the height
profile of an unsteady liquid-free surface, which is adequate for
regions where the slope of the surface changes strongly, as for example
the head of a spreading current. The method is developed for situations
in which the height depends on a single Cartesian coordinate (plane
flows); however, the underlying idea could be applied to more general
cases. As a test, we obtained the profiles of a transparent solid
object (a cylindrical lens) and of an actual liquid flow. These
profiles are determined with high accuracy even if the direction of the
normal to the free surface changes approximately 150° within the probed
region.