Abstract: Microthruster is an important functional component for microspacecrafts.In order to understand the principles of deferent microthrusters,real time transient microthrust measurement method is helpful.It can also be used to measure low frequency multiple pulsed microthrust.A method of transient microthrust measuring is proposed.The preliminary simulation results show that this method,with good tracking characteristics and high calculation accuracy,can satisfy the need of transient microthrust measurment for low-frequency multi-pulsed microthrusts and continuous microthrust.

Key words: Microthrust;Real time;Transient;Measurement

摘要： 微推进器是微型航天器的重要功能器件。实时测量微推进器不同时刻推力的瞬时值对研究微推进器的工作机理很有帮助;对于工作在低频多脉冲条件下的推进器,通过实时测量微推力的瞬时值,也可以获得多脉冲微推力的信息。提出了一种瞬态微推力的实时测量方法。初步仿真计算结果表明,此方法具有很好的跟踪特性,计算精度较高,可用于低频多脉冲微推力以及连续微推力实时测量。

关键词: 微推力;实时;瞬时;测量