论文部分内容阅读
在冲击波、爆轰、兵器、激光等众多研究领域中,均提出了使用单个探头对一个测点进行多种技术同步复测的迫切需求。为实现上述目标,分析了常规和外差式光子多普勒测速技术的工作机理、光学结构和复测难题,设计了一种基于单探头实现常规和外差式光子多普勒测速技术同步复测的方案,并根据该方案搭建了一套新型测速装置。设计了爆轰波加载铝飞片和铅粒子群的考核实验,实验结果显示,使用单个测速探头对单个或多个目标均实现了优异的测速效果,获得了2种技术在单次实验中各自独立测量到的待测目标速度曲线。该研究内容及实验结果对充分研究激光测速技术在单探头多技术复测方面的应用极具意义。
In many fields of research, such as shock wave, detonation, weapon, laser and so on, there is an urgent need of using a single probe to carry out a variety of techniques for synchronous retest of a measuring point. In order to achieve the above objectives, the working mechanism, optical structure and retesting problems of conventional and heterodyne photon Doppler velocimetry are analyzed. A novel method based on single probe is designed to realize the synchronous and heterodyne photon Doppler velocimetry Measure the program, and according to the program set up a new type of speed measuring device. The experiments of detonation wave loaded aluminum flyer and lead particle swarm were designed. The experimental results show that the single speed gun or the single target achieves excellent speed measuring effect. Two kinds of technologies are obtained in a single experiment Independent measured target speed curve. The research contents and experimental results are very meaningful to fully study the application of laser speed measurement in single-probe multi-technology retest.