Multiple-laser flash shadowgraphy system for terminal studies of small-caliber projectiles

Autor: Ganga Sharan Singh, Manpreet Singh, V. S. Sethi, Manjit Singh, Gautam Mitra, M. S. Yadav, R. K. Varma, R. C. Kalonia
Rok vydání: 2010
Předmět:
Zdroj: Optical Engineering. 49:064303
ISSN: 0091-3286
DOI: 10.1117/1.3456614
Popis: A multiple-laser flash shadowgraphy system has been innovatively designed and developed to study the terminal effects of projectiles. The system has been designed based on modulated laser diodes operated at low voltage and current. In order to study the ballistics effects of small arms, an exposure time of the order of a few hundreds ns and a delay time of the order of a few tens of μs are needed. An ultrashort pulse generator has been developed to provide the exposure and delay time pulses. The developed system has been integrated with a field lens assembly and camera assembly. To record the shadowgraphs, a target is placed near the center of the field lens and a bullet is fired from a fixed gun. The system is described, and experimental results and conclusions are reported.
Databáze: OpenAIRE