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Proceedings Paper

Digital phase-shift holographic interferometry for quantitative measurements of weak shock waves and its related phenomena
Author(s): Toshiharu Mizukaki; Harald Kleine; Kazuyoshi Takayama
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Paper Abstract

By applying two-reference beam interferometry together with digital data processing, a correspondingly modified double exposure holographic interferometer has been used to measure the density distribution in flow fields generated by very weak shock waves. The weak shock waves were generated by the explosion of milligram charges of silver azide, which were ignited by a pulsed Nd:YAG laser. With the help of this technique, density variations in a flow field associated with a shock Mach number Ms = 1.0007 were visualized and quantified. Phenomena that generated a sound intensity of 135dB could be resolved.

Paper Details

Date Published: 19 June 2002
PDF: 8 pages
Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); doi: 10.1117/12.473552
Show Author Affiliations
Toshiharu Mizukaki, Japan Defense Agency (Japan)
Harald Kleine, Tohoku Univ. (Japan)
Kazuyoshi Takayama, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4778:
Interferometry XI: Applications
Wolfgang Osten, Editor(s)

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