首页> 外文会议>4th International spacecraft propulsion conference >DEVELOPMENT OF AN ADVANCED PROPORTIONAL XENON FEED ASSEMBLY FOR THE GOCE SPACECRAFT
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DEVELOPMENT OF AN ADVANCED PROPORTIONAL XENON FEED ASSEMBLY FOR THE GOCE SPACECRAFT

机译:用于GOCE空间工艺的先进比例氙气进料组件的开发。

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In the last few years an increase in the use of ion propulsion systems for spacecrafts has been observed. The Proportional Xenon Feed Assembly (PXFA), currently under development at Bradford Engineering B.V. in The Netherlands, is part of the Ion Propulsion Assembly for use on the GOCE spacecraft. rnThe PXFA is the feed system that regulates the pressure down from the propellant tank and provides the xenon flows to the main, cathode and neutralizer inlets of the Ion Thruster Assembly developed by QinetiQ (UK). Due to the high specific impulse of ion thrusters and the relatively low thrust levels (ranging from 1.5 to 20 mN), this places stringent requirements on the controllability of the very low rates by the PXFA. rnThe scientific objectives of the GOCE program, also place stringent microdisturbance requirements on the PXFA. rnThis techniques used in the PXFA as developed for the GOCE spacecraft, will also be an enabling technology for a variety of future science and microgravity missions.
机译:在最近几年中,已经观察到离子推进系统在航天器中的使用有所增加。目前,荷兰布拉德福德工程公司正在研发的比例氙供料组件(PXFA)是用于GOCE航天器的离子推进组件的一部分。 rnPXFA是一种进料系统,可调节来自推进剂罐的压力并将氙流提供给QinetiQ(英国)开发的离子推进器总成的主,阴极和中和器入口。由于离子推进器的高比冲和相对较低的推力水平(范围从1.5到20 mN),这对PXFA对极低速率的可控性提出了严格的要求。 rn GOCE计划的科学目标也对PXFA提出了严格的微扰要求。 rn这种为GOCE航天器开发的PXFA中使用的技术,也将成为未来各种科学和微重力飞行任务的使能技术。

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