Paper
5 February 1993 Contouring of a free oil surface
William Stephen Meyers, H. Philip Stahl
Author Affiliations +
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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William Stephen Meyers and H. Philip Stahl "Contouring of a free oil surface", Proc. SPIE 1755, Interferometry: Techniques and Analysis, (5 February 1993); https://doi.org/10.1117/12.140756
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CITATIONS
Cited by 1 scholarly publication.
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KEYWORDS
Wavefronts

Ronchi rulings

Interferometry

Calibration

Fringe analysis

Thermography

Diamond

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Contouring of a free oil surface
Proceedings of SPIE (September 02 1992)

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