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Proceedings Paper

Principle of soft x-ray moire deflectometry to visualize a flow field in a diesel combustion chamber
Author(s): Haihang You; Dapeng Yan; Zhengdong Wang; Anzhi He
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Paper Abstract

The technique based on Moire deflectometry with soft x-ray laser beam has been demonstrated by the research group of D. Ress in the research of plasma produced by laser. We apply this method to visualize the flow field in diesel combustion chamber, and it is also a new application in the world. When a beam of collimated light passes through the flow field, the index-of-refraction gradient in the plasma bends the rays through an angle. A Moire pattern is created when a probe beam is passed through a pair of rotationally offset (angle (theta) ) 1D rulings consisting of evenly spaced opaque and transmissive stripes. By measuring the fringe shift we can get the information of flow field.

Paper Details

Date Published: 14 October 1997
PDF: 4 pages
Proc. SPIE 3157, Applications of X Rays Generated from Lasers and Other Bright Sources, (14 October 1997); doi: 10.1117/12.279420
Show Author Affiliations
Haihang You, Nanjing Univ. of Science and Technology (China)
Dapeng Yan, Nanjing Univ. of Science and Technology (China)
Zhengdong Wang, Nanjing Univ. of Science and Technology (China)
Anzhi He, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 3157:
Applications of X Rays Generated from Lasers and Other Bright Sources
George A. Kyrala; Jean-Claude J. Gauthier, Editor(s)

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