两种激光烧蚀微推力器工作模式的讨论

激光烧蚀微推力器技术是激光推进技术最有可能率先实现工程应用的技术研究方向。作为一种新型的空间推进领域电推进推力器技术,以其系统集成度较高、电功耗较低、冲量元精准等优势特性,在推进性能和系统集成等方面形成鲜明的特色,对于多种空间推进任务具备潜在的应用价值。以激光烧蚀微推力器发展历程为背景,总结提炼当前推力器技术发展趋势,提出了激光烧蚀微推力器目前最具研究价值的两种工作模式,分别对高低比冲两种不同工作模式进行了性能分析和比对,对激光烧蚀微推力器应用前景进行了展望,最后给出了进一步研究的建议。

Discussion on two kinds of working modes of laser ablation micro-thruster

The laser ablation micro-thruster technology is one of the most promising technologies to realize the engineering application of laser propulsion technology. As a new kind of electric propul-sion thruster technology in the field of space propulsion, it has high degree of system integration, low power consumption, precision impulse element and other characteristics, forms a vivid feature in the aspects of propulsion performance and system integration, and possesses a potential application value for a variety of space missions. In this paper, the development trend of laser ablation micro-thruster technology is summarized by taking development history of laser ablation micro-thruster as the back-ground, two working modes of the laser ablation micro-thruster, which have highest research value at present, are put forward, and the performances of the two working modes with high specific impulse and low specific impulse are analyzed respectively. Application prospect of the laser ablation micro-thruster is prospected. Finally, some suggestions for further research are given.