G.高速摄影和光子学应用的新发展

RECENT ADVANCE OF APPLICATIONS IN HIGH SPEED PHOTOGRAPHY AND PHOTONICS

本文主要评述高速摄影与光子学在弹道、冲击和爆炸研究方面的应用,并介绍了一些新仪器和新的测试方法。

At present, high speed flow process research is developing very fast. Most of the flow processes are nanosecond or picosecond events. The precision of the measuredvelocity history is getting higher and higher and the duration is shorter and shorter. New instruments have been made and measuring methods with both high space and time resolution have been occurred.This paper reviews applications about high speed photography and photonics in trajectory, impact and explosion. The measuring method which measures two dimensional and three dimensional space quantity is being perfected geometrically, but there are many new studies in light source of high speed photography with laser and completeable many valuable experiments. Recently, it is important that physical optics being led in high speed photography range has advanced developments of the interferometer, high speed photography, short pulse holography, dynamic speckle effect, dynamic moire and so on. These new techniques have been used for internal ballistics, median ballistics, detonics, shock wave, high speed impact phenomena, dynamic behaviour of materials. In these respects, China, US, UK,USSR, West Germany, France, Japan, Korea, Isreal, Canada, Australia have presented more than 100 papers in the congress.