基于脉冲激光的铝靶碎片冲量耦合系数的研究进展

Research progress of impulse coupling coefficient of pulsed laser to aluminum target fragments

综述了冲量耦合系数的测量方法:冲击摆法、激光干涉法、激光结合冲击摆法、水平导轨测量方法、压力传感器法,介绍了冲量耦合系数的主要数值分析方法以及影响因素:激光波长、脉宽、重复频率、功率密度以及碎片材料特性等。在概括总结了激光烧蚀冲量耦合影响因素的基础上,总结了激光烧蚀冲量耦合系数测量实验装置需要改进的措施以及测量装置和激光发射器今后所需要研究的方向。

The measurement methods of impulse coupling coefficient,such as impact pendulum method,laser interference method,laser combined impact pendulum method,horizontal guideway measurement method,pressure sensor method,the main numerical analysis methods of impulse coupling coefficient and the influencing factors,such as laser wavelength,pulse width,repetition frequency,power density and characteristics of debris materials,are reviewed.On the basis of summarizing the influencing factors of laser ablation impulse coupling,the measures to be improved in the experimental device for measuring laser ablation impulse coupling coefficient and the research direction of the measuring device and laser emitter in the future are summarized.