激光等离子体微推进技术经过近10年的发展,越来越受到业内人士的广泛关注。针对透射式激光等离子体微烧蚀物理过程,构建了理论分析模型,并进行了仿真。结合仿真结果,分析了激光脉宽和靶材的选取对烧蚀产生的推力和冲量的影响,提出了激光微烧蚀推进参数设计过程中,需要注意的几个问题。采用冲击摆系统测量激光微烧蚀靶材推力特性,对理论模型进行修正,与实验结果对比,模型与实验测量结果符合良好。 Laser plasma micro-propulsion technology after nearly 10 years of development, more and more people in the industry by the widespread concern. Aimed at the physical process of transmissive laser plasma micro-ablation, a theoretical analysis model was constructed and simulated. Combined with the simulation results, the effects of laser pulse width and target selection on the thrust and impulse generated by ablation were analyzed. Several problems that should be paid attention to in the design of laser micro-ablation propelling parameters were put forward. The thrust pendulum system was used to measure the thrust characteristics of the laser micro-ablation target, and the theoretical model was corrected. Compared with the experimental results, the model and the experimental measurement results were in good agreement.