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Proceedings Paper

Visualization of very weak shock waves by digital phase-shift interferometry
Author(s): Toshiharu Mizukaki; Harald Kleine; Kazuyoshi Takayama
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Paper Abstract

In this study, the method of digital phase shift holographic interferometry is applied to accurately measure the density distribution behind a weak shock wave. The goal of this investigation is to visualize and quantitatively evaluate flow fields behind weak disturbances, which are only marginally stronger than sound waves. In the present experiment, the shock Mach number was approximately Ms approximately equals 1.01. The wave was generated by the explosion of a small silver-azide (micro- charge) pellet, which was ignited by an Nd:YAG laser. Using phase shift interferometry, the phase distribution of the region far behind the incident shock could be detected.

Paper Details

Date Published: 31 August 2000
PDF: 9 pages
Proc. SPIE 4076, Optical Diagnostics for Industrial Applications, (31 August 2000); doi: 10.1117/12.397941
Show Author Affiliations
Toshiharu Mizukaki, Tohoku Univ. (Japan)
Harald Kleine, Tohoku Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4076:
Optical Diagnostics for Industrial Applications
Neil A. Halliwell, Editor(s)

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