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Optical Engineering

Real-time phase shift schlieren
Author(s): Sébastien Farinotti; Didier Beghuin; Luc C. Joannes
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Paper Abstract

The phase shift schlieren (PSS), an improved method of the conventional schlieren imaging technique, enables direct quantitative measurements of optical path length gradients. Like all phase-shifting imaging methods, a successive acquisition of multiple images is required, therefore limiting the PSS use to quasi-steady-state phenomena. We show that PSS can be easily modified to access real-time data. A possible implementation is disclosed, as well as experimental results that validate the method. An application on gas jet is illustrated. We present the features and limitations of the real-time phase shift schlieren (RTPSS).

Paper Details

Date Published: 1 August 2005
PDF: 4 pages
Opt. Eng. 44(8) 083603 doi: 10.1117/1.2032307
Published in: Optical Engineering Volume 44, Issue 8
Show Author Affiliations
Sébastien Farinotti, LAMBDA-X SA (Belgium)
Didier Beghuin, LAMBDA-X SA (Belgium)
Luc C. Joannes, LAMBDA-X SA (Belgium)

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