THE INCREASING USE OF HIGH SPEED DIGITAL IMAGERY AS A MEASUREMENT TOOL IN TE

摘要

Photography's inestimable contribution to science and technology is beyond question. Applied photography is that area of work which assumes an integral part of a research project and where the results of photographic analysis form a major source of information. In military research and development or testing there are various fast and dangerous events that need to be recorded and analysed. High-speed cameras allow the capture of movement ,too fast to be recognised by the human eye, and provide data that is essential for the analysis and evaluation of such events. High-speed photography is often the only type of instrumentation that can be used to record the parameters demanded by our customers. Examples are shown and discussed where this applied cinematography is used not only to provide a visual record of events, but also as an essential measurement tool. Whereas traditionally silver-based photographic films were the only recording means available, nowadays a variety of other sensors are used. This paper shows actual film records from a variety of weapon tests, highlights the increasing use of electronic recording media, and introduces the strategy of completely "digitising" optical recording on our ranges in the near future. Although many of the techniques discussed have been developed specifically for armament testing many of them are equally applicable to other industries.