脉冲等离子推力器羽流实验研究初探

The Preparatory Investigation for the Plume Experiment of Pulsed Plasma Thrusters

脉冲等离子体推力器(Pulsed Plasma Thrusters,PPTs)具有体积小、结构简单、推力小、比冲高等特点,非常适用于目前正广泛开展研究的小型航天器的姿轨控系统,是电推进领域的研究热点之一。开展对PPTs羽流特性的研究是了解PPTs工作机理、分析其推力作用规律和探索性能提升方法的重要途径,本文对PPTs进行了概述,综述并分析了PPTs的羽流特点、研究现状,对实验中涉及到的羽流测量参数及方法进行了概括,对相关的等离子体诊断方法进行了重点介绍。

Pulsed plasma thrusters（PFTs） have the characteristics such as the small size, the simple structure, the little thrust and the high specific impulse. They very suit as the attitude/orbit control system of the Microsats, which are being researched widely in the world, and they are the active research fields of the electric propulsion system. The experiment investigation for the plume of PPTs is the important way to understand the nmning mechanism, to analyse the thrust disciplinarian and to improve the efficiency. The plmne peculiarities and the research status of PPTs are summarized, the plume parameters and the methods in the process of the experiments are generalized, and the diagnosis of the plasma which adapt to the PPTs plume experiments are introduced in especial.