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Proceedings Paper

Contouring of a free oil surface
Author(s): William Stephen Meyers; H. Philip Stahl
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Paper Abstract

A non-contact (i.e., optical) technique is required to measure the deformation of a free oil surface under the influence of a localized thermal load. This deformation is caused by surface tension driven thermal convective flow inside the fluid, and can be as large as 250 micrometers. Therefore, conventional interferometry is not possible. Instead, a Ronchi technique is proposed for contour mapping the oil surface. This paper presents a two channel Ronchi instrument, and some preliminary results from the analysis of two aspheric surfaces, a diamond machined metal surface and the free oil surface.

Paper Details

Date Published: 5 February 1993
PDF: 11 pages
Proc. SPIE 1755, Interferometry: Techniques and Analysis, (5 February 1993); doi: 10.1117/12.140756
Show Author Affiliations
William Stephen Meyers, Rose-Hulman Institute of Technology (United States)
H. Philip Stahl, Rose-Hulman Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1755:
Interferometry: Techniques and Analysis
Gordon M. Brown; Osuk Y. Kwon; Malgorzata Kujawinska; Graeme T. Reid, Editor(s)

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