Digital phase-shift holographic interferometry for quantitative measurements of weak shock waves and its related phenomena

Toshiharu Mizukaki; Harald Kleine; Kazuyoshi Takayama

doi:10.1117/12.473552

19 June 2002 Digital phase-shift holographic interferometry for quantitative measurements of weak shock waves and its related phenomena

Toshiharu Mizukaki, Harald Kleine, Kazuyoshi Takayama

Author Affiliations +

Proceedings Volume 4778, Interferometry XI: Applications; (2002) https://doi.org/10.1117/12.473552
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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 M_s = 1.0007 were visualized and quantified. Phenomena that generated a sound intensity of 135dB could be resolved.

Citation Download Citation

Toshiharu Mizukaki, Harald Kleine, and Kazuyoshi Takayama "Digital phase-shift holographic interferometry for quantitative measurements of weak shock waves and its related phenomena", Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); https://doi.org/10.1117/12.473552

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