The pulse ruby laser OGM-20 was used to obtain hypersonic flow patterns. An automatic electronic equipment was developed in order to switch-on the pumping lamps and to open the Pockels shutter at the time moments determined by the actual model velocity. The Interferometer and the Thepler device were employed coupled with the laser light source in hypersonic ballistic experiments. Interferograms and schlieren photos of hypersonic cones are presented. Major advantages or laser lignt sources and limits of its applicability for quantitative optical measurements in hypersonic ballistics are considered.

Date Published: 14 September 1977
PDF: 4 pages
Proc. SPIE 0097, 12th Intl Congress on High Speed Photography, (14 September 1977); doi: 10.1117/12.955226

Published in SPIE Proceedings Vol. 0097:
12th Intl Congress on High Speed Photography
Martin C. Richardson, Editor(s)