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タイトル: Development of Thrust Stand for Low Impulse Measurement from Microthrusters
著者: Koizumi, Hiroyuki
Komurasaki, Kimiya
Arakawa, Yoshihiro
著者(別言語): 小泉, 宏之
小紫, 公也
荒川, 義博
キーワード: Thrust stand
Low impulse measurement
発行日: 2004年10月
出版者: American Institute of Physics
掲載誌情報: Review of Scientific Instruments, Vol. 75, No.10, 2004, p.3185-3190.
関連URI: http://rsi.aip.org/rsi/
抄録: A thrust stand has been developed to accurately measure thrust produced by two types of microthrusters—a liquid propellant pulsed plasma thruster (LP-PPT) and a diode laser ablation microthruster. The impulse of LP-PPT ranged from 20 to 80 mNs. The diode laser microthruster, which is a new type of microthruster, produces much lower impulse range of 1–10 mNs for about 1 s. The mechanical noise induced from the background vibrations becomes a crucial problem for precise estimate of thrust particularly in low impulse measurements. A data analysis method to reduce the effect of mechanical noise is proposed by introducing an additional term in a fitting function. It was verified that the analysis method used in our experimental conditions reduced variance caused by noise down to one-third that of a normal fitting method. The accuracy of the thrust stand is 2.1 mNs in the case of the LP-PPT and 0.7 mNs in the case of the diode laser microthruster.
URI: http://hdl.handle.net/2261/3799
ISSN: 00346748
出現カテゴリ:014 自然科学
1131810 学術雑誌論文


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