Abstract
Pulsed plasma thruster (PPT) is widely used in space propulsion due to its high reliability, specific impulse and systematic simpleness, but its improvement has been troubled for years by its low efficiency. In this paper, a novel laser assisted pulsed plasma thruster (LAPPT) prototype is designed, in which the traditional spark ignitor is replaced by 532nm laser. With a series of experimental test on LAPPT, the enhancement of impulse bit, specific impulse, impulse coupling coefficient is confirmed. This study introduces a novel method to improve PPT’s performance and set a solid foundation for further research.
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