摘要:
研究爆轰试验高速摄影中,闪光灯和摄影机快门失灵引起试验失败问题,提出对试验操控装置和闪光灯电源改进措施。首先,在实验操控上增加防止仅雷管起爆的逻辑控制,并采用集中控制,分布检测设计；其次,在闪光氙灯电源中,采用伪火花开关和多节LC（电感-电容）脉冲形成线技术,解决氙灯存在的自闪、不引燃和光强不均。此外,还解决了装置研制中遇到的电磁干扰、同步引燃等问题。通过改进,有效地防止了爆轰试验中高速摄影光学影像丢失情况和底片曝光不均匀现象,介绍了主要元件、线路和系统、实验结果及研制过程。
Abstract:
In order to prevent the flash and shutter failure occurred in the high speed imaging of detonation experiments, this article presented a robust and reliable method by improving the test control devices and circuit of xenon lamp power supply of the high-speed imaging in experiment. Firstly, a circuit for performing logical operations was added on control signals to supervise the experiment. Secondly, the technology of a pseudospark switch and multi-section pulse forming line was used in the xenon flash lamp power supply, so that it could solve the xenon lamps self-flash, non-ignite and light intensity uneven problems. Finally, the pseudospark switch solved the process-encountered electromagnetic interference and synchronization ignition problems. In conclusion, this method effectively prevented the high-speed photography optical image missing and uneven film exposure in the detonation test. And the current article introduced the main components, circuits, systems, as well as the development process and the results of the experiment of this method.
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